|  | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3 | 
|  | ; RUN: llc < %s -mtriple=aarch64-unknown-unknown | FileCheck %s | 
|  |  | 
|  | @.str = private constant [513 x i8] c"01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901\00", align 1 | 
|  |  | 
|  | declare dso_local i32 @memcmp(ptr, ptr, i64) | 
|  |  | 
|  | define i32 @length0(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length0: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 0) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length0_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length0_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w0, #1 // =0x1 | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 0) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length0_lt(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length0_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 0) nounwind | 
|  | %c = icmp slt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length2(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length2: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w8, [x0] | 
|  | ; CHECK-NEXT:    ldrh w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    lsr w8, w8, #16 | 
|  | ; CHECK-NEXT:    sub w0, w8, w9, lsr #16 | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 2) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i32 @length2_const(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length2_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w9, [x0] | 
|  | ; CHECK-NEXT:    mov w8, #-12594 // =0xffffcece | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    add w0, w8, w9, lsr #16 | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr getelementptr inbounds ([513 x i8], ptr @.str, i32 0, i32 1), i64 2) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length2_gt_const(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length2_gt_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w9, [x0] | 
|  | ; CHECK-NEXT:    mov w8, #-12594 // =0xffffcece | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    add w8, w8, w9, lsr #16 | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr getelementptr inbounds ([513 x i8], ptr @.str, i32 0, i32 1), i64 2) nounwind | 
|  | %c = icmp sgt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length2_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length2_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w8, [x0] | 
|  | ; CHECK-NEXT:    ldrh w9, [x1] | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 2) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length2_lt(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length2_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w8, [x0] | 
|  | ; CHECK-NEXT:    ldrh w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    lsr w8, w8, #16 | 
|  | ; CHECK-NEXT:    sub w8, w8, w9, lsr #16 | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 2) nounwind | 
|  | %c = icmp slt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length2_gt(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length2_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w8, [x0] | 
|  | ; CHECK-NEXT:    ldrh w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    lsr w8, w8, #16 | 
|  | ; CHECK-NEXT:    sub w8, w8, w9, lsr #16 | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 2) nounwind | 
|  | %c = icmp sgt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length2_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length2_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w8, [x0] | 
|  | ; CHECK-NEXT:    mov w9, #12849 // =0x3231 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr getelementptr inbounds ([513 x i8], ptr @.str, i32 0, i32 1), i64 2) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length2_eq_nobuiltin_attr(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length2_eq_nobuiltin_attr: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #2 // =0x2 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 2) nounwind nobuiltin | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length3(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length3: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrb w8, [x0, #2] | 
|  | ; CHECK-NEXT:    ldrh w9, [x0] | 
|  | ; CHECK-NEXT:    ldrb w10, [x1, #2] | 
|  | ; CHECK-NEXT:    ldrh w11, [x1] | 
|  | ; CHECK-NEXT:    orr w8, w9, w8, lsl #16 | 
|  | ; CHECK-NEXT:    orr w9, w11, w10, lsl #16 | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w8, hi | 
|  | ; CHECK-NEXT:    csinv w0, w8, wzr, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 3) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length3_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length3_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w8, [x0] | 
|  | ; CHECK-NEXT:    ldrh w9, [x1] | 
|  | ; CHECK-NEXT:    ldrb w10, [x0, #2] | 
|  | ; CHECK-NEXT:    ldrb w11, [x1, #2] | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    ccmp w10, w11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 3) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length4(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length4: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w8, hi | 
|  | ; CHECK-NEXT:    csinv w0, w8, wzr, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 4) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length4_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length4_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 4) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length4_lt(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length4_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w0, lo | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 4) nounwind | 
|  | %c = icmp slt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length4_lt_32(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length4_lt_32: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w0, lo | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 4) nounwind | 
|  | %c = lshr i32 %m, 31 | 
|  | ret i32 %c | 
|  | } | 
|  |  | 
|  | define i1 @length4_gt(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length4_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w0, hi | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 4) nounwind | 
|  | %c = icmp sgt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length4_le(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length4_le: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w0, ls | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 4) nounwind | 
|  | %c = icmp slt i32 %m, 1 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length4_ge(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length4_ge: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w0, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 4) nounwind | 
|  | %c = icmp sgt i32 %m, -1 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length4_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length4_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    mov w9, #12849 // =0x3231 | 
|  | ; CHECK-NEXT:    movk w9, #13363, lsl #16 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr getelementptr inbounds ([513 x i8], ptr @.str, i32 0, i32 1), i64 4) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length5(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length5: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrb w8, [x0, #4] | 
|  | ; CHECK-NEXT:    ldr w9, [x0] | 
|  | ; CHECK-NEXT:    ldrb w10, [x1, #4] | 
|  | ; CHECK-NEXT:    ldr w11, [x1] | 
|  | ; CHECK-NEXT:    orr x8, x9, x8, lsl #32 | 
|  | ; CHECK-NEXT:    orr x9, x11, x10, lsl #32 | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    cset w8, hi | 
|  | ; CHECK-NEXT:    csinv w0, w8, wzr, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 5) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length5_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length5_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    ldrb w10, [x0, #4] | 
|  | ; CHECK-NEXT:    ldrb w11, [x1, #4] | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    ccmp w10, w11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 5) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length5_lt(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length5_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrb w8, [x0, #4] | 
|  | ; CHECK-NEXT:    ldr w9, [x0] | 
|  | ; CHECK-NEXT:    ldrb w10, [x1, #4] | 
|  | ; CHECK-NEXT:    ldr w11, [x1] | 
|  | ; CHECK-NEXT:    orr x8, x9, x8, lsl #32 | 
|  | ; CHECK-NEXT:    orr x9, x11, x10, lsl #32 | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    cset w0, lo | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 5) nounwind | 
|  | %c = icmp slt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length6(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length6: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w8, [x0, #4] | 
|  | ; CHECK-NEXT:    ldr w9, [x0] | 
|  | ; CHECK-NEXT:    ldrh w10, [x1, #4] | 
|  | ; CHECK-NEXT:    ldr w11, [x1] | 
|  | ; CHECK-NEXT:    orr x8, x9, x8, lsl #32 | 
|  | ; CHECK-NEXT:    orr x9, x11, x10, lsl #32 | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    cset w8, hi | 
|  | ; CHECK-NEXT:    csinv w0, w8, wzr, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 6) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i32 @length6_lt(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length6_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldrh w8, [x0, #4] | 
|  | ; CHECK-NEXT:    ldr w9, [x0] | 
|  | ; CHECK-NEXT:    ldrh w10, [x1, #4] | 
|  | ; CHECK-NEXT:    ldr w11, [x1] | 
|  | ; CHECK-NEXT:    orr x8, x9, x8, lsl #32 | 
|  | ; CHECK-NEXT:    orr x9, x11, x10, lsl #32 | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    cset w0, lo | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 6) nounwind | 
|  | %r = lshr i32 %m, 31 | 
|  | ret i32 %r | 
|  | } | 
|  |  | 
|  | define i32 @length7(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length7: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    b.ne .LBB26_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldur w8, [x0, #3] | 
|  | ; CHECK-NEXT:    ldur w9, [x1, #3] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    b.ne .LBB26_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB26_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 7) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length7_lt(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length7_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    b.ne .LBB27_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldur w8, [x0, #3] | 
|  | ; CHECK-NEXT:    ldur w9, [x1, #3] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    b.ne .LBB27_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    lsr w0, wzr, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB27_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 7) nounwind | 
|  | %c = icmp slt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length7_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length7_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr w8, [x0] | 
|  | ; CHECK-NEXT:    ldr w9, [x1] | 
|  | ; CHECK-NEXT:    ldur w10, [x0, #3] | 
|  | ; CHECK-NEXT:    ldur w11, [x1, #3] | 
|  | ; CHECK-NEXT:    cmp w8, w9 | 
|  | ; CHECK-NEXT:    ccmp w10, w11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 7) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length8(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length8: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    cset w8, hi | 
|  | ; CHECK-NEXT:    csinv w0, w8, wzr, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 8) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length8_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length8_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 8) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length8_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length8_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x9, #12592 // =0x3130 | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    movk x9, #13106, lsl #16 | 
|  | ; CHECK-NEXT:    movk x9, #13620, lsl #32 | 
|  | ; CHECK-NEXT:    movk x9, #14134, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 8) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length9(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length9: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB32_2 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldrb w8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldrb w9, [x1, #8] | 
|  | ; CHECK-NEXT:    sub w0, w8, w9 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB32_2: // %res_block | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 9) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length9_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length9_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    ldrb w10, [x0, #8] | 
|  | ; CHECK-NEXT:    ldrb w11, [x1, #8] | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 9) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length10(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length10: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB34_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldrh w8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldrh w9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    lsr w8, w8, #16 | 
|  | ; CHECK-NEXT:    lsr w9, w9, #16 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB34_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB34_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 10) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length10_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length10_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    ldrh w10, [x0, #8] | 
|  | ; CHECK-NEXT:    ldrh w11, [x1, #8] | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 10) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length11(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length11: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB36_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #3] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #3] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB36_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB36_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 11) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length11_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length11_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    ldur x10, [x0, #3] | 
|  | ; CHECK-NEXT:    ldur x11, [x1, #3] | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 11) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length12_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length12_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    ldr w10, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr w11, [x1, #8] | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 12) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length12(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length12: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB39_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr w8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr w9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev w8, w8 | 
|  | ; CHECK-NEXT:    rev w9, w9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB39_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB39_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 12) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length13_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length13_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    ldur x10, [x0, #5] | 
|  | ; CHECK-NEXT:    ldur x11, [x1, #5] | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 13) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length14_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length14_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    ldur x10, [x0, #6] | 
|  | ; CHECK-NEXT:    ldur x11, [x1, #6] | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 14) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length15(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length15: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB42_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #7] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #7] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB42_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB42_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 15) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length15_lt(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length15_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB43_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #7] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #7] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB43_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    lsr w0, wzr, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB43_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 15) nounwind | 
|  | %c = icmp slt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length15_const(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length15_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x8, #14136 // =0x3738 | 
|  | ; CHECK-NEXT:    ldr x9, [x0] | 
|  | ; CHECK-NEXT:    movk x8, #13622, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #13108, lsl #32 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    movk x8, #12594, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    b.ne .LBB44_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    mov x8, #13365 // =0x3435 | 
|  | ; CHECK-NEXT:    ldur x9, [x0, #7] | 
|  | ; CHECK-NEXT:    movk x8, #12851, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #12337, lsl #32 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    movk x8, #14393, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    b.ne .LBB44_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB44_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr getelementptr inbounds ([513 x i8], ptr @.str, i32 0, i32 1), i64 15) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length15_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length15_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    ldur x10, [x0, #7] | 
|  | ; CHECK-NEXT:    ldur x11, [x1, #7] | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 15) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i1 @length15_gt_const(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length15_gt_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x8, #14136 // =0x3738 | 
|  | ; CHECK-NEXT:    ldr x9, [x0] | 
|  | ; CHECK-NEXT:    movk x8, #13622, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #13108, lsl #32 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    movk x8, #12594, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    b.ne .LBB46_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    mov x8, #13365 // =0x3435 | 
|  | ; CHECK-NEXT:    ldur x9, [x0, #7] | 
|  | ; CHECK-NEXT:    movk x8, #12851, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #12337, lsl #32 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    movk x8, #14393, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    b.ne .LBB46_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    mov w8, wzr | 
|  | ; CHECK-NEXT:    b .LBB46_4 | 
|  | ; CHECK-NEXT:  .LBB46_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:  .LBB46_4: // %endblock | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr getelementptr inbounds ([513 x i8], ptr @.str, i32 0, i32 1), i64 15) nounwind | 
|  | %c = icmp sgt i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  |  | 
|  | define i32 @length16(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length16: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB47_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB47_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB47_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 16) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length16_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length16_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 16) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length16_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length16_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB49_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB49_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    lsr w0, wzr, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB49_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 16) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length16_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length16_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB50_3 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB50_3 | 
|  | ; CHECK-NEXT:  // %bb.2: | 
|  | ; CHECK-NEXT:    mov w8, wzr | 
|  | ; CHECK-NEXT:    b .LBB50_4 | 
|  | ; CHECK-NEXT:  .LBB50_3: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:  .LBB50_4: // %endblock | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 16) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length16_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length16_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x8, #12592 // =0x3130 | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #14134, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    mov x8, #14648 // =0x3938 | 
|  | ; CHECK-NEXT:    movk x8, #12592, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x10, x8, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 16) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  |  | 
|  | define i32 @length24(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length24: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB52_4 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB52_4 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB52_4 | 
|  | ; CHECK-NEXT:  // %bb.3: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB52_4: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 24) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length24_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length24_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldr x12, [x0, #16] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    ldr x13, [x1, #16] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x12, x13, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 24) nounwind | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length24_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length24_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB54_4 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB54_4 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB54_4 | 
|  | ; CHECK-NEXT:  // %bb.3: | 
|  | ; CHECK-NEXT:    lsr w0, wzr, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB54_4: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 24) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length24_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length24_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB55_4 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB55_4 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB55_4 | 
|  | ; CHECK-NEXT:  // %bb.3: | 
|  | ; CHECK-NEXT:    mov w8, wzr | 
|  | ; CHECK-NEXT:    b .LBB55_5 | 
|  | ; CHECK-NEXT:  .LBB55_4: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:  .LBB55_5: // %endblock | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 24) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length24_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length24_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x8, #12592 // =0x3130 | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #16 | 
|  | ; CHECK-NEXT:    ldr x11, [x0, #16] | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #14134, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    mov x8, #14648 // =0x3938 | 
|  | ; CHECK-NEXT:    movk x8, #12592, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x10, x8, #0, eq | 
|  | ; CHECK-NEXT:    mov x8, #14134 // =0x3736 | 
|  | ; CHECK-NEXT:    movk x8, #14648, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #12592, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x11, x8, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 24) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length31(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length31: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB57_5 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB57_5 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB57_5 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #23] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #23] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB57_5 | 
|  | ; CHECK-NEXT:  // %bb.4: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB57_5: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 31) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length31_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length31_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldr x12, [x0, #16] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    ldr x13, [x1, #16] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #23] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #23] | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x12, x13, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x9, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 31) nounwind | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length31_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length31_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB59_5 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB59_5 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB59_5 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #23] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #23] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB59_5 | 
|  | ; CHECK-NEXT:  // %bb.4: | 
|  | ; CHECK-NEXT:    lsr w0, wzr, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB59_5: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 31) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length31_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length31_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB60_5 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB60_5 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB60_5 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #23] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #23] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB60_5 | 
|  | ; CHECK-NEXT:  // %bb.4: | 
|  | ; CHECK-NEXT:    mov w8, wzr | 
|  | ; CHECK-NEXT:    b .LBB60_6 | 
|  | ; CHECK-NEXT:  .LBB60_5: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:  .LBB60_6: // %endblock | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 31) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length31_eq_prefer128(ptr %x, ptr %y) nounwind "prefer-vector-width"="128" { | 
|  | ; CHECK-LABEL: length31_eq_prefer128: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldr x12, [x0, #16] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    ldr x13, [x1, #16] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #23] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #23] | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x12, x13, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x9, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 31) nounwind | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length31_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length31_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x8, #12592 // =0x3130 | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #16 | 
|  | ; CHECK-NEXT:    ldr x11, [x0, #16] | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #14134, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    mov x8, #14648 // =0x3938 | 
|  | ; CHECK-NEXT:    ldur x9, [x0, #23] | 
|  | ; CHECK-NEXT:    movk x8, #12592, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x10, x8, #0, eq | 
|  | ; CHECK-NEXT:    mov x8, #14134 // =0x3736 | 
|  | ; CHECK-NEXT:    movk x8, #14648, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #12592, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x11, x8, #0, eq | 
|  | ; CHECK-NEXT:    mov x8, #13363 // =0x3433 | 
|  | ; CHECK-NEXT:    movk x8, #13877, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #14391, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #12345, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x9, x8, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 31) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length32(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length32: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB63_5 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB63_5 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB63_5 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB63_5 | 
|  | ; CHECK-NEXT:  // %bb.4: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB63_5: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 32) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  |  | 
|  | define i1 @length32_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length32_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    ldp x12, x13, [x1, #16] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ldp x8, x9, [x0, #16] | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x12, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x9, x13, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 32) nounwind | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length32_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length32_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB65_5 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB65_5 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB65_5 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB65_5 | 
|  | ; CHECK-NEXT:  // %bb.4: | 
|  | ; CHECK-NEXT:    lsr w0, wzr, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB65_5: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 32) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length32_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length32_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB66_5 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB66_5 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB66_5 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB66_5 | 
|  | ; CHECK-NEXT:  // %bb.4: | 
|  | ; CHECK-NEXT:    mov w8, wzr | 
|  | ; CHECK-NEXT:    b .LBB66_6 | 
|  | ; CHECK-NEXT:  .LBB66_5: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:  .LBB66_6: // %endblock | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 32) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length32_eq_prefer128(ptr %x, ptr %y) nounwind "prefer-vector-width"="128" { | 
|  | ; CHECK-LABEL: length32_eq_prefer128: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    ldp x12, x13, [x1, #16] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ldp x8, x9, [x0, #16] | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x12, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x9, x13, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 32) nounwind | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length32_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length32_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x8, #12592 // =0x3130 | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #14134, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    mov x8, #14648 // =0x3938 | 
|  | ; CHECK-NEXT:    movk x8, #12592, lsl #16 | 
|  | ; CHECK-NEXT:    ldp x9, x11, [x0, #16] | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x10, x8, #0, eq | 
|  | ; CHECK-NEXT:    mov x8, #14134 // =0x3736 | 
|  | ; CHECK-NEXT:    movk x8, #14648, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #12592, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x9, x8, #0, eq | 
|  | ; CHECK-NEXT:    mov x8, #13620 // =0x3534 | 
|  | ; CHECK-NEXT:    movk x8, #14134, lsl #16 | 
|  | ; CHECK-NEXT:    movk x8, #14648, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #12592, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x11, x8, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 32) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length48(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length48: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB69_7 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB69_7 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB69_7 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB69_7 | 
|  | ; CHECK-NEXT:  // %bb.4: // %loadbb4 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #32] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #32] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB69_7 | 
|  | ; CHECK-NEXT:  // %bb.5: // %loadbb5 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #40] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #40] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB69_7 | 
|  | ; CHECK-NEXT:  // %bb.6: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB69_7: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 48) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length48_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length48_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    ldp x12, x13, [x1, #16] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ldp x8, x9, [x0, #16] | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x12, #0, eq | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x0, #32] | 
|  | ; CHECK-NEXT:    ldp x10, x12, [x1, #32] | 
|  | ; CHECK-NEXT:    ccmp x9, x13, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x10, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x11, x12, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 48) nounwind | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length48_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length48_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB71_7 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB71_7 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB71_7 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB71_7 | 
|  | ; CHECK-NEXT:  // %bb.4: // %loadbb4 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #32] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #32] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB71_7 | 
|  | ; CHECK-NEXT:  // %bb.5: // %loadbb5 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #40] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #40] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB71_7 | 
|  | ; CHECK-NEXT:  // %bb.6: | 
|  | ; CHECK-NEXT:    lsr w0, wzr, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB71_7: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 48) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length48_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length48_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB72_7 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB72_7 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB72_7 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB72_7 | 
|  | ; CHECK-NEXT:  // %bb.4: // %loadbb4 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #32] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #32] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB72_7 | 
|  | ; CHECK-NEXT:  // %bb.5: // %loadbb5 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #40] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #40] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB72_7 | 
|  | ; CHECK-NEXT:  // %bb.6: | 
|  | ; CHECK-NEXT:    mov w8, wzr | 
|  | ; CHECK-NEXT:    b .LBB72_8 | 
|  | ; CHECK-NEXT:  .LBB72_7: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:  .LBB72_8: // %endblock | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 48) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length48_eq_prefer128(ptr %x, ptr %y) nounwind "prefer-vector-width"="128" { | 
|  | ; CHECK-LABEL: length48_eq_prefer128: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    ldp x12, x13, [x1, #16] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ldp x8, x9, [x0, #16] | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x12, #0, eq | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x0, #32] | 
|  | ; CHECK-NEXT:    ldp x10, x12, [x1, #32] | 
|  | ; CHECK-NEXT:    ccmp x9, x13, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x10, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x11, x12, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 48) nounwind | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length48_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length48_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x8, #12592 // =0x3130 | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #16 | 
|  | ; CHECK-NEXT:    ldp x11, x12, [x0, #16] | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #14134, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    mov x9, #14648 // =0x3938 | 
|  | ; CHECK-NEXT:    movk x9, #12592, lsl #16 | 
|  | ; CHECK-NEXT:    movk x9, #13106, lsl #32 | 
|  | ; CHECK-NEXT:    movk x9, #13620, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x10, x9, #0, eq | 
|  | ; CHECK-NEXT:    mov x9, #14134 // =0x3736 | 
|  | ; CHECK-NEXT:    movk x9, #14648, lsl #16 | 
|  | ; CHECK-NEXT:    movk x9, #12592, lsl #32 | 
|  | ; CHECK-NEXT:    movk x9, #13106, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x11, x9, #0, eq | 
|  | ; CHECK-NEXT:    mov x9, #13620 // =0x3534 | 
|  | ; CHECK-NEXT:    movk x9, #14134, lsl #16 | 
|  | ; CHECK-NEXT:    ldp x10, x11, [x0, #32] | 
|  | ; CHECK-NEXT:    movk x9, #14648, lsl #32 | 
|  | ; CHECK-NEXT:    movk x9, #12592, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x12, x9, #0, eq | 
|  | ; CHECK-NEXT:    mov x9, #13106 // =0x3332 | 
|  | ; CHECK-NEXT:    movk x9, #13620, lsl #16 | 
|  | ; CHECK-NEXT:    movk x9, #14134, lsl #32 | 
|  | ; CHECK-NEXT:    movk x9, #14648, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x10, x9, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x11, x8, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 48) nounwind | 
|  | %c = icmp ne i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length63(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length63: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB75_9 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB75_9 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB75_9 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB75_9 | 
|  | ; CHECK-NEXT:  // %bb.4: // %loadbb4 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #32] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #32] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB75_9 | 
|  | ; CHECK-NEXT:  // %bb.5: // %loadbb5 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #40] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #40] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB75_9 | 
|  | ; CHECK-NEXT:  // %bb.6: // %loadbb6 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #48] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #48] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB75_9 | 
|  | ; CHECK-NEXT:  // %bb.7: // %loadbb7 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #55] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #55] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB75_9 | 
|  | ; CHECK-NEXT:  // %bb.8: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB75_9: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 63) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length63_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length63_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    ldp x12, x13, [x1, #16] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ldp x8, x9, [x0, #16] | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x12, #0, eq | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x0, #32] | 
|  | ; CHECK-NEXT:    ldp x10, x12, [x1, #32] | 
|  | ; CHECK-NEXT:    ccmp x9, x13, #0, eq | 
|  | ; CHECK-NEXT:    ldr x9, [x0, #48] | 
|  | ; CHECK-NEXT:    ldr x13, [x1, #48] | 
|  | ; CHECK-NEXT:    ccmp x8, x10, #0, eq | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #55] | 
|  | ; CHECK-NEXT:    ldur x10, [x1, #55] | 
|  | ; CHECK-NEXT:    ccmp x11, x12, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x9, x13, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x10, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 63) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length63_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length63_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB77_9 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB77_9 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB77_9 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB77_9 | 
|  | ; CHECK-NEXT:  // %bb.4: // %loadbb4 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #32] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #32] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB77_9 | 
|  | ; CHECK-NEXT:  // %bb.5: // %loadbb5 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #40] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #40] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB77_9 | 
|  | ; CHECK-NEXT:  // %bb.6: // %loadbb6 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #48] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #48] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB77_9 | 
|  | ; CHECK-NEXT:  // %bb.7: // %loadbb7 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #55] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #55] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB77_9 | 
|  | ; CHECK-NEXT:  // %bb.8: | 
|  | ; CHECK-NEXT:    lsr w0, wzr, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB77_9: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 63) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length63_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length63_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB78_9 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB78_9 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB78_9 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB78_9 | 
|  | ; CHECK-NEXT:  // %bb.4: // %loadbb4 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #32] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #32] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB78_9 | 
|  | ; CHECK-NEXT:  // %bb.5: // %loadbb5 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #40] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #40] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB78_9 | 
|  | ; CHECK-NEXT:  // %bb.6: // %loadbb6 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #48] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #48] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB78_9 | 
|  | ; CHECK-NEXT:  // %bb.7: // %loadbb7 | 
|  | ; CHECK-NEXT:    ldur x8, [x0, #55] | 
|  | ; CHECK-NEXT:    ldur x9, [x1, #55] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB78_9 | 
|  | ; CHECK-NEXT:  // %bb.8: | 
|  | ; CHECK-NEXT:    mov w8, wzr | 
|  | ; CHECK-NEXT:    b .LBB78_10 | 
|  | ; CHECK-NEXT:  .LBB78_9: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:  .LBB78_10: // %endblock | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 63) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length63_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length63_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x8, #12592 // =0x3130 | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #16 | 
|  | ; CHECK-NEXT:    ldp x11, x12, [x0, #16] | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #14134, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    mov x9, #14648 // =0x3938 | 
|  | ; CHECK-NEXT:    movk x9, #12592, lsl #16 | 
|  | ; CHECK-NEXT:    movk x9, #13106, lsl #32 | 
|  | ; CHECK-NEXT:    movk x9, #13620, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x10, x9, #0, eq | 
|  | ; CHECK-NEXT:    mov x10, #14134 // =0x3736 | 
|  | ; CHECK-NEXT:    movk x10, #14648, lsl #16 | 
|  | ; CHECK-NEXT:    movk x10, #12592, lsl #32 | 
|  | ; CHECK-NEXT:    movk x10, #13106, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x11, x10, #0, eq | 
|  | ; CHECK-NEXT:    mov x10, #13620 // =0x3534 | 
|  | ; CHECK-NEXT:    movk x10, #14134, lsl #16 | 
|  | ; CHECK-NEXT:    ldp x11, x13, [x0, #32] | 
|  | ; CHECK-NEXT:    movk x10, #14648, lsl #32 | 
|  | ; CHECK-NEXT:    movk x10, #12592, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x12, x10, #0, eq | 
|  | ; CHECK-NEXT:    mov x10, #13106 // =0x3332 | 
|  | ; CHECK-NEXT:    ldr x12, [x0, #48] | 
|  | ; CHECK-NEXT:    movk x10, #13620, lsl #16 | 
|  | ; CHECK-NEXT:    movk x10, #14134, lsl #32 | 
|  | ; CHECK-NEXT:    movk x10, #14648, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x11, x10, #0, eq | 
|  | ; CHECK-NEXT:    ldur x10, [x0, #55] | 
|  | ; CHECK-NEXT:    ccmp x13, x8, #0, eq | 
|  | ; CHECK-NEXT:    mov x8, #13877 // =0x3635 | 
|  | ; CHECK-NEXT:    movk x8, #14391, lsl #16 | 
|  | ; CHECK-NEXT:    ccmp x12, x9, #0, eq | 
|  | ; CHECK-NEXT:    movk x8, #12345, lsl #32 | 
|  | ; CHECK-NEXT:    movk x8, #12849, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x10, x8, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 63) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length64(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length64: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB80_9 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB80_9 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB80_9 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB80_9 | 
|  | ; CHECK-NEXT:  // %bb.4: // %loadbb4 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #32] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #32] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB80_9 | 
|  | ; CHECK-NEXT:  // %bb.5: // %loadbb5 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #40] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #40] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB80_9 | 
|  | ; CHECK-NEXT:  // %bb.6: // %loadbb6 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #48] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #48] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB80_9 | 
|  | ; CHECK-NEXT:  // %bb.7: // %loadbb7 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #56] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #56] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB80_9 | 
|  | ; CHECK-NEXT:  // %bb.8: | 
|  | ; CHECK-NEXT:    mov w0, wzr | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB80_9: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w0, w8, hs | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 64) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length64_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length64_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x1] | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    ldp x12, x13, [x1, #16] | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    ldp x8, x9, [x0, #16] | 
|  | ; CHECK-NEXT:    ccmp x10, x11, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x12, #0, eq | 
|  | ; CHECK-NEXT:    ldp x8, x11, [x0, #32] | 
|  | ; CHECK-NEXT:    ldp x10, x12, [x1, #32] | 
|  | ; CHECK-NEXT:    ccmp x9, x13, #0, eq | 
|  | ; CHECK-NEXT:    ldp x9, x13, [x1, #48] | 
|  | ; CHECK-NEXT:    ccmp x8, x10, #0, eq | 
|  | ; CHECK-NEXT:    ldp x8, x10, [x0, #48] | 
|  | ; CHECK-NEXT:    ccmp x11, x12, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x8, x9, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x10, x13, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 64) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length64_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length64_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB82_9 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB82_9 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB82_9 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB82_9 | 
|  | ; CHECK-NEXT:  // %bb.4: // %loadbb4 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #32] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #32] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB82_9 | 
|  | ; CHECK-NEXT:  // %bb.5: // %loadbb5 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #40] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #40] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB82_9 | 
|  | ; CHECK-NEXT:  // %bb.6: // %loadbb6 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #48] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #48] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB82_9 | 
|  | ; CHECK-NEXT:  // %bb.7: // %loadbb7 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #56] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #56] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB82_9 | 
|  | ; CHECK-NEXT:  // %bb.8: | 
|  | ; CHECK-NEXT:    lsr w0, wzr, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | ; CHECK-NEXT:  .LBB82_9: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:    lsr w0, w8, #31 | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 64) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length64_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length64_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    ldr x8, [x0] | 
|  | ; CHECK-NEXT:    ldr x9, [x1] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB83_9 | 
|  | ; CHECK-NEXT:  // %bb.1: // %loadbb1 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #8] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #8] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB83_9 | 
|  | ; CHECK-NEXT:  // %bb.2: // %loadbb2 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #16] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #16] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB83_9 | 
|  | ; CHECK-NEXT:  // %bb.3: // %loadbb3 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #24] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #24] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB83_9 | 
|  | ; CHECK-NEXT:  // %bb.4: // %loadbb4 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #32] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #32] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB83_9 | 
|  | ; CHECK-NEXT:  // %bb.5: // %loadbb5 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #40] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #40] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB83_9 | 
|  | ; CHECK-NEXT:  // %bb.6: // %loadbb6 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #48] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #48] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB83_9 | 
|  | ; CHECK-NEXT:  // %bb.7: // %loadbb7 | 
|  | ; CHECK-NEXT:    ldr x8, [x0, #56] | 
|  | ; CHECK-NEXT:    ldr x9, [x1, #56] | 
|  | ; CHECK-NEXT:    rev x8, x8 | 
|  | ; CHECK-NEXT:    rev x9, x9 | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    b.ne .LBB83_9 | 
|  | ; CHECK-NEXT:  // %bb.8: | 
|  | ; CHECK-NEXT:    mov w8, wzr | 
|  | ; CHECK-NEXT:    b .LBB83_10 | 
|  | ; CHECK-NEXT:  .LBB83_9: // %res_block | 
|  | ; CHECK-NEXT:    cmp x8, x9 | 
|  | ; CHECK-NEXT:    mov w8, #-1 // =0xffffffff | 
|  | ; CHECK-NEXT:    cneg w8, w8, hs | 
|  | ; CHECK-NEXT:  .LBB83_10: // %endblock | 
|  | ; CHECK-NEXT:    cmp w8, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 64) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length64_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length64_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x8, #12592 // =0x3130 | 
|  | ; CHECK-NEXT:    ldp x9, x10, [x0] | 
|  | ; CHECK-NEXT:    movk x8, #13106, lsl #16 | 
|  | ; CHECK-NEXT:    ldp x11, x12, [x0, #16] | 
|  | ; CHECK-NEXT:    movk x8, #13620, lsl #32 | 
|  | ; CHECK-NEXT:    ldp x13, x14, [x0, #32] | 
|  | ; CHECK-NEXT:    movk x8, #14134, lsl #48 | 
|  | ; CHECK-NEXT:    cmp x9, x8 | 
|  | ; CHECK-NEXT:    mov x9, #14648 // =0x3938 | 
|  | ; CHECK-NEXT:    movk x9, #12592, lsl #16 | 
|  | ; CHECK-NEXT:    movk x9, #13106, lsl #32 | 
|  | ; CHECK-NEXT:    movk x9, #13620, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x10, x9, #0, eq | 
|  | ; CHECK-NEXT:    mov x10, #14134 // =0x3736 | 
|  | ; CHECK-NEXT:    movk x10, #14648, lsl #16 | 
|  | ; CHECK-NEXT:    movk x10, #12592, lsl #32 | 
|  | ; CHECK-NEXT:    movk x10, #13106, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x11, x10, #0, eq | 
|  | ; CHECK-NEXT:    mov x11, #13620 // =0x3534 | 
|  | ; CHECK-NEXT:    movk x11, #14134, lsl #16 | 
|  | ; CHECK-NEXT:    movk x11, #14648, lsl #32 | 
|  | ; CHECK-NEXT:    movk x11, #12592, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x12, x11, #0, eq | 
|  | ; CHECK-NEXT:    mov x11, #13106 // =0x3332 | 
|  | ; CHECK-NEXT:    movk x11, #13620, lsl #16 | 
|  | ; CHECK-NEXT:    movk x11, #14134, lsl #32 | 
|  | ; CHECK-NEXT:    movk x11, #14648, lsl #48 | 
|  | ; CHECK-NEXT:    ccmp x13, x11, #0, eq | 
|  | ; CHECK-NEXT:    ldp x11, x12, [x0, #48] | 
|  | ; CHECK-NEXT:    ccmp x14, x8, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x11, x9, #0, eq | 
|  | ; CHECK-NEXT:    ccmp x12, x10, #0, eq | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 64) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length96(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length96: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w2, #96 // =0x60 | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 96) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length96_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length96_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #96 // =0x60 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 96) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length96_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length96_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #96 // =0x60 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    lsr w0, w0, #31 | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 96) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length96_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length96_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #96 // =0x60 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 96) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length96_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length96_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    adrp x1, .L.str | 
|  | ; CHECK-NEXT:    add x1, x1, :lo12:.L.str | 
|  | ; CHECK-NEXT:    mov w2, #96 // =0x60 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 96) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length127(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length127: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w2, #127 // =0x7f | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 127) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length127_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length127_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #127 // =0x7f | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 127) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length127_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length127_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #127 // =0x7f | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    lsr w0, w0, #31 | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 127) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length127_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length127_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #127 // =0x7f | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 127) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length127_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length127_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    adrp x1, .L.str | 
|  | ; CHECK-NEXT:    add x1, x1, :lo12:.L.str | 
|  | ; CHECK-NEXT:    mov w2, #127 // =0x7f | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 127) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length128(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length128: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w2, #128 // =0x80 | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 128) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length128_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length128_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #128 // =0x80 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 128) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length128_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length128_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #128 // =0x80 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    lsr w0, w0, #31 | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 128) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length128_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length128_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #128 // =0x80 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 128) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length128_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length128_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    adrp x1, .L.str | 
|  | ; CHECK-NEXT:    add x1, x1, :lo12:.L.str | 
|  | ; CHECK-NEXT:    mov w2, #128 // =0x80 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 128) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length192(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length192: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w2, #192 // =0xc0 | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 192) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length192_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length192_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #192 // =0xc0 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 192) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length192_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length192_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #192 // =0xc0 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    lsr w0, w0, #31 | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 192) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length192_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length192_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #192 // =0xc0 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 192) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length192_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length192_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    adrp x1, .L.str | 
|  | ; CHECK-NEXT:    add x1, x1, :lo12:.L.str | 
|  | ; CHECK-NEXT:    mov w2, #192 // =0xc0 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 192) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length255(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length255: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w2, #255 // =0xff | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 255) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length255_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length255_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #255 // =0xff | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 255) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length255_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length255_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #255 // =0xff | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    lsr w0, w0, #31 | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 255) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length255_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length255_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #255 // =0xff | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 255) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length255_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length255_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    adrp x1, .L.str | 
|  | ; CHECK-NEXT:    add x1, x1, :lo12:.L.str | 
|  | ; CHECK-NEXT:    mov w2, #255 // =0xff | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 255) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length256(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length256: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w2, #256 // =0x100 | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 256) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length256_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length256_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #256 // =0x100 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 256) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length256_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length256_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #256 // =0x100 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    lsr w0, w0, #31 | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 256) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length256_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length256_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #256 // =0x100 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 256) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length256_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length256_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    adrp x1, .L.str | 
|  | ; CHECK-NEXT:    add x1, x1, :lo12:.L.str | 
|  | ; CHECK-NEXT:    mov w2, #256 // =0x100 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 256) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length384(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length384: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w2, #384 // =0x180 | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 384) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length384_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length384_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #384 // =0x180 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 384) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length384_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length384_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #384 // =0x180 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    lsr w0, w0, #31 | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 384) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length384_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length384_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #384 // =0x180 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 384) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length384_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length384_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    adrp x1, .L.str | 
|  | ; CHECK-NEXT:    add x1, x1, :lo12:.L.str | 
|  | ; CHECK-NEXT:    mov w2, #384 // =0x180 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 384) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length511(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length511: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w2, #511 // =0x1ff | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 511) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length511_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length511_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #511 // =0x1ff | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 511) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length511_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length511_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #511 // =0x1ff | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    lsr w0, w0, #31 | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 511) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length511_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length511_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #511 // =0x1ff | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 511) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length511_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length511_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    adrp x1, .L.str | 
|  | ; CHECK-NEXT:    add x1, x1, :lo12:.L.str | 
|  | ; CHECK-NEXT:    mov w2, #511 // =0x1ff | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 511) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @length512(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: length512: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov w2, #512 // =0x200 | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 512) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @length512_eq(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length512_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #512 // =0x200 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, ne | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 512) nounwind | 
|  | %cmp = icmp ne i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length512_lt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length512_lt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #512 // =0x200 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    lsr w0, w0, #31 | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 512) nounwind | 
|  | %cmp = icmp slt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length512_gt(ptr %x, ptr %y) nounwind { | 
|  | ; CHECK-LABEL: length512_gt: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov w2, #512 // =0x200 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, gt | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %call = tail call i32 @memcmp(ptr %x, ptr %y, i64 512) nounwind | 
|  | %cmp = icmp sgt i32 %call, 0 | 
|  | ret i1 %cmp | 
|  | } | 
|  |  | 
|  | define i1 @length512_eq_const(ptr %X) nounwind { | 
|  | ; CHECK-LABEL: length512_eq_const: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    adrp x1, .L.str | 
|  | ; CHECK-NEXT:    add x1, x1, :lo12:.L.str | 
|  | ; CHECK-NEXT:    mov w2, #512 // =0x200 | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr @.str, i64 512) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @huge_length(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: huge_length: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    mov x2, #9223372036854775807 // =0x7fffffffffffffff | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 9223372036854775807) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @huge_length_eq(ptr %X, ptr %Y) nounwind { | 
|  | ; CHECK-LABEL: huge_length_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    mov x2, #9223372036854775807 // =0x7fffffffffffffff | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 9223372036854775807) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } | 
|  |  | 
|  | define i32 @nonconst_length(ptr %X, ptr %Y, i64 %size) nounwind { | 
|  | ; CHECK-LABEL: nonconst_length: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    b memcmp | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 %size) nounwind | 
|  | ret i32 %m | 
|  | } | 
|  |  | 
|  | define i1 @nonconst_length_eq(ptr %X, ptr %Y, i64 %size) nounwind { | 
|  | ; CHECK-LABEL: nonconst_length_eq: | 
|  | ; CHECK:       // %bb.0: | 
|  | ; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill | 
|  | ; CHECK-NEXT:    bl memcmp | 
|  | ; CHECK-NEXT:    cmp w0, #0 | 
|  | ; CHECK-NEXT:    cset w0, eq | 
|  | ; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload | 
|  | ; CHECK-NEXT:    ret | 
|  | %m = tail call i32 @memcmp(ptr %X, ptr %Y, i64 %size) nounwind | 
|  | %c = icmp eq i32 %m, 0 | 
|  | ret i1 %c | 
|  | } |