llvm/test/CodeGen/ARM/extract-lowbits.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=thumbv7m-eabi  %s -o - | FileCheck %s --check-prefix V7M
; RUN: llc -mtriple=armv7a-eabi  %s -o -   | FileCheck %s --check-prefix V7A
; RUN: llc -mtriple=thumbv7a-eabi  %s -o -   | FileCheck %s --check-prefix V7A-T
; RUN: llc -mtriple=armv6m-eabi  %s -o -   | FileCheck %s --check-prefix V6M

; Patterns:
;   a) x &  (1 << nbits) - 1
;   b) x & ~(-1 << nbits)
;   c) x &  (-1 >> (32 - y))
;   d) x << (32 - y) >> (32 - y)
; are equivalent.

; ---------------------------------------------------------------------------- ;
; Pattern a. 32-bit
; ---------------------------------------------------------------------------- ;

define i32 @bzhi32_a0(i32 %val, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_a0:
; V7M:       @ %bb.0:
; V7M-NEXT:    movs r2, #1
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    subs r1, #1
; V7M-NEXT:    ands r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_a0:
; V7A:       @ %bb.0:
; V7A-NEXT:    mov r2, #1
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    add r1, r3, r2, lsl r1
; V7A-NEXT:    and r0, r1, r0
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_a0:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    movs r2, #1
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    subs r1, #1
; V7A-T-NEXT:    ands r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_a0:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #1
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    subs r1, r2, #1
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    bx lr
  %onebit = shl i32 1, %numlowbits
  %mask = add nsw i32 %onebit, -1
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_a1_indexzext(i32 %val, i8 zeroext %numlowbits) nounwind {
; V7M-LABEL: bzhi32_a1_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    movs r2, #1
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    subs r1, #1
; V7M-NEXT:    ands r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_a1_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    mov r2, #1
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    add r1, r3, r2, lsl r1
; V7A-NEXT:    and r0, r1, r0
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_a1_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    movs r2, #1
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    subs r1, #1
; V7A-T-NEXT:    ands r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_a1_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #1
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    subs r1, r2, #1
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    bx lr
  %conv = zext i8 %numlowbits to i32
  %onebit = shl i32 1, %conv
  %mask = add nsw i32 %onebit, -1
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_a2_load(ptr %w, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_a2_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    movs r2, #1
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    subs r1, #1
; V7M-NEXT:    ands r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_a2_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    mov r2, #1
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    add r1, r3, r2, lsl r1
; V7A-NEXT:    and r0, r1, r0
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_a2_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    movs r2, #1
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    subs r1, #1
; V7A-T-NEXT:    ands r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_a2_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #1
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    subs r1, r2, #1
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    bx lr
  %val = load i32, ptr %w
  %onebit = shl i32 1, %numlowbits
  %mask = add nsw i32 %onebit, -1
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_a3_load_indexzext(ptr %w, i8 zeroext %numlowbits) nounwind {
; V7M-LABEL: bzhi32_a3_load_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    movs r2, #1
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    subs r1, #1
; V7M-NEXT:    ands r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_a3_load_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    mov r2, #1
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    add r1, r3, r2, lsl r1
; V7A-NEXT:    and r0, r1, r0
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_a3_load_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    movs r2, #1
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    subs r1, #1
; V7A-T-NEXT:    ands r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_a3_load_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #1
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    subs r1, r2, #1
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    bx lr
  %val = load i32, ptr %w
  %conv = zext i8 %numlowbits to i32
  %onebit = shl i32 1, %conv
  %mask = add nsw i32 %onebit, -1
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_a4_commutative(i32 %val, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_a4_commutative:
; V7M:       @ %bb.0:
; V7M-NEXT:    movs r2, #1
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    subs r1, #1
; V7M-NEXT:    ands r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_a4_commutative:
; V7A:       @ %bb.0:
; V7A-NEXT:    mov r2, #1
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    add r1, r3, r2, lsl r1
; V7A-NEXT:    and r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_a4_commutative:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    movs r2, #1
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    subs r1, #1
; V7A-T-NEXT:    ands r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_a4_commutative:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #1
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    subs r1, r2, #1
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    bx lr
  %onebit = shl i32 1, %numlowbits
  %mask = add nsw i32 %onebit, -1
  %masked = and i32 %val, %mask ; swapped order
  ret i32 %masked
}

; 64-bit

define i64 @bzhi64_a0(i64 %val, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_a0:
; V7M:       @ %bb.0:
; V7M-NEXT:    .save {r7, lr}
; V7M-NEXT:    push {r7, lr}
; V7M-NEXT:    rsb.w r3, r2, #32
; V7M-NEXT:    mov.w r12, #1
; V7M-NEXT:    subs.w lr, r2, #32
; V7M-NEXT:    lsl.w r2, r12, r2
; V7M-NEXT:    lsr.w r3, r12, r3
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r3, r12, lr
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r2, #0
; V7M-NEXT:    subs r2, #1
; V7M-NEXT:    sbc r3, r3, #0
; V7M-NEXT:    ands r0, r2
; V7M-NEXT:    ands r1, r3
; V7M-NEXT:    pop {r7, pc}
;
; V7A-LABEL: bzhi64_a0:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r11, lr}
; V7A-NEXT:    push {r11, lr}
; V7A-NEXT:    rsb r12, r2, #32
; V7A-NEXT:    mov lr, #1
; V7A-NEXT:    subs r3, r2, #32
; V7A-NEXT:    lsl r2, lr, r2
; V7A-NEXT:    lsr r12, lr, r12
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    lslpl r12, lr, r3
; V7A-NEXT:    subs r2, r2, #1
; V7A-NEXT:    sbc r3, r12, #0
; V7A-NEXT:    and r0, r2, r0
; V7A-NEXT:    and r1, r3, r1
; V7A-NEXT:    pop {r11, pc}
;
; V7A-T-LABEL: bzhi64_a0:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsb.w r3, r2, #32
; V7A-T-NEXT:    mov.w r12, #1
; V7A-T-NEXT:    subs.w lr, r2, #32
; V7A-T-NEXT:    lsl.w r2, r12, r2
; V7A-T-NEXT:    lsr.w r3, r12, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r3, r12, lr
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r2, #0
; V7A-T-NEXT:    subs r2, #1
; V7A-T-NEXT:    sbc r3, r3, #0
; V7A-T-NEXT:    ands r0, r2
; V7A-T-NEXT:    ands r1, r3
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_a0:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r6, lr}
; V6M-NEXT:    push {r4, r5, r6, lr}
; V6M-NEXT:    mov r5, r1
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #1
; V6M-NEXT:    movs r6, #0
; V6M-NEXT:    mov r1, r6
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    subs r0, r0, #1
; V6M-NEXT:    sbcs r1, r6
; V6M-NEXT:    ands r1, r5
; V6M-NEXT:    ands r0, r4
; V6M-NEXT:    pop {r4, r5, r6, pc}
  %onebit = shl i64 1, %numlowbits
  %mask = add nsw i64 %onebit, -1
  %masked = and i64 %mask, %val
  ret i64 %masked
}

; Check that we don't throw away the vreg_width-1 mask if not using shifts
define i64 @bzhi64_a0_masked(i64 %val, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_a0_masked:
; V7M:       @ %bb.0:
; V7M-NEXT:    .save {r7, lr}
; V7M-NEXT:    push {r7, lr}
; V7M-NEXT:    and r2, r2, #63
; V7M-NEXT:    mov.w r12, #1
; V7M-NEXT:    rsb.w r3, r2, #32
; V7M-NEXT:    subs.w lr, r2, #32
; V7M-NEXT:    lsl.w r2, r12, r2
; V7M-NEXT:    lsr.w r3, r12, r3
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r3, r12, lr
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r2, #0
; V7M-NEXT:    subs r2, #1
; V7M-NEXT:    sbc r3, r3, #0
; V7M-NEXT:    ands r0, r2
; V7M-NEXT:    ands r1, r3
; V7M-NEXT:    pop {r7, pc}
;
; V7A-LABEL: bzhi64_a0_masked:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r11, lr}
; V7A-NEXT:    push {r11, lr}
; V7A-NEXT:    and r2, r2, #63
; V7A-NEXT:    mov lr, #1
; V7A-NEXT:    rsb r12, r2, #32
; V7A-NEXT:    subs r3, r2, #32
; V7A-NEXT:    lsl r2, lr, r2
; V7A-NEXT:    lsr r12, lr, r12
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    lslpl r12, lr, r3
; V7A-NEXT:    subs r2, r2, #1
; V7A-NEXT:    sbc r3, r12, #0
; V7A-NEXT:    and r0, r2, r0
; V7A-NEXT:    and r1, r3, r1
; V7A-NEXT:    pop {r11, pc}
;
; V7A-T-LABEL: bzhi64_a0_masked:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    and r2, r2, #63
; V7A-T-NEXT:    mov.w r12, #1
; V7A-T-NEXT:    rsb.w r3, r2, #32
; V7A-T-NEXT:    subs.w lr, r2, #32
; V7A-T-NEXT:    lsl.w r2, r12, r2
; V7A-T-NEXT:    lsr.w r3, r12, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r3, r12, lr
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r2, #0
; V7A-T-NEXT:    subs r2, #1
; V7A-T-NEXT:    sbc r3, r3, #0
; V7A-T-NEXT:    ands r0, r2
; V7A-T-NEXT:    ands r1, r3
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_a0_masked:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r6, lr}
; V6M-NEXT:    push {r4, r5, r6, lr}
; V6M-NEXT:    mov r5, r1
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #63
; V6M-NEXT:    ands r2, r0
; V6M-NEXT:    movs r0, #1
; V6M-NEXT:    movs r6, #0
; V6M-NEXT:    mov r1, r6
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    subs r0, r0, #1
; V6M-NEXT:    sbcs r1, r6
; V6M-NEXT:    ands r1, r5
; V6M-NEXT:    ands r0, r4
; V6M-NEXT:    pop {r4, r5, r6, pc}
  %numlowbits.masked = and i64 %numlowbits, 63
  %onebit = shl i64 1, %numlowbits.masked
  %mask = add nsw i64 %onebit, -1
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_a1_indexzext(i64 %val, i8 zeroext %numlowbits) nounwind {
; V7M-LABEL: bzhi64_a1_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    .save {r7, lr}
; V7M-NEXT:    push {r7, lr}
; V7M-NEXT:    rsb.w r3, r2, #32
; V7M-NEXT:    mov.w r12, #1
; V7M-NEXT:    subs.w lr, r2, #32
; V7M-NEXT:    lsl.w r2, r12, r2
; V7M-NEXT:    lsr.w r3, r12, r3
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r3, r12, lr
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r2, #0
; V7M-NEXT:    subs r2, #1
; V7M-NEXT:    sbc r3, r3, #0
; V7M-NEXT:    ands r0, r2
; V7M-NEXT:    ands r1, r3
; V7M-NEXT:    pop {r7, pc}
;
; V7A-LABEL: bzhi64_a1_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r11, lr}
; V7A-NEXT:    push {r11, lr}
; V7A-NEXT:    rsb r12, r2, #32
; V7A-NEXT:    mov lr, #1
; V7A-NEXT:    subs r3, r2, #32
; V7A-NEXT:    lsl r2, lr, r2
; V7A-NEXT:    lsr r12, lr, r12
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    lslpl r12, lr, r3
; V7A-NEXT:    subs r2, r2, #1
; V7A-NEXT:    sbc r3, r12, #0
; V7A-NEXT:    and r0, r2, r0
; V7A-NEXT:    and r1, r3, r1
; V7A-NEXT:    pop {r11, pc}
;
; V7A-T-LABEL: bzhi64_a1_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsb.w r3, r2, #32
; V7A-T-NEXT:    mov.w r12, #1
; V7A-T-NEXT:    subs.w lr, r2, #32
; V7A-T-NEXT:    lsl.w r2, r12, r2
; V7A-T-NEXT:    lsr.w r3, r12, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r3, r12, lr
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r2, #0
; V7A-T-NEXT:    subs r2, #1
; V7A-T-NEXT:    sbc r3, r3, #0
; V7A-T-NEXT:    ands r0, r2
; V7A-T-NEXT:    ands r1, r3
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_a1_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r6, lr}
; V6M-NEXT:    push {r4, r5, r6, lr}
; V6M-NEXT:    mov r5, r1
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #1
; V6M-NEXT:    movs r6, #0
; V6M-NEXT:    mov r1, r6
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    subs r0, r0, #1
; V6M-NEXT:    sbcs r1, r6
; V6M-NEXT:    ands r1, r5
; V6M-NEXT:    ands r0, r4
; V6M-NEXT:    pop {r4, r5, r6, pc}
  %conv = zext i8 %numlowbits to i64
  %onebit = shl i64 1, %conv
  %mask = add nsw i64 %onebit, -1
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_a2_load(ptr %w, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_a2_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r2, #32
; V7M-NEXT:    movs r3, #1
; V7M-NEXT:    subs.w r12, r2, #32
; V7M-NEXT:    lsl.w r2, r3, r2
; V7M-NEXT:    lsr.w r1, r3, r1
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r1, r3, r12
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r2, #0
; V7M-NEXT:    subs r2, #1
; V7M-NEXT:    ldrd r0, r3, [r0]
; V7M-NEXT:    sbc r1, r1, #0
; V7M-NEXT:    ands r1, r3
; V7M-NEXT:    ands r0, r2
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_a2_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r4, r6, r11, lr}
; V7A-NEXT:    push {r4, r6, r11, lr}
; V7A-NEXT:    ldr r6, [r0]
; V7A-NEXT:    mov r1, #1
; V7A-NEXT:    ldr r3, [r0, #4]
; V7A-NEXT:    rsb r0, r2, #32
; V7A-NEXT:    subs r4, r2, #32
; V7A-NEXT:    lsr r0, r1, r0
; V7A-NEXT:    lslpl r0, r1, r4
; V7A-NEXT:    lsl r1, r1, r2
; V7A-NEXT:    movwpl r1, #0
; V7A-NEXT:    subs r2, r1, #1
; V7A-NEXT:    sbc r0, r0, #0
; V7A-NEXT:    and r1, r0, r3
; V7A-NEXT:    and r0, r2, r6
; V7A-NEXT:    pop {r4, r6, r11, pc}
;
; V7A-T-LABEL: bzhi64_a2_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsb.w r3, r2, #32
; V7A-T-NEXT:    movs r1, #1
; V7A-T-NEXT:    ldrd r12, lr, [r0]
; V7A-T-NEXT:    subs.w r0, r2, #32
; V7A-T-NEXT:    lsr.w r3, r1, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r3, r1, r0
; V7A-T-NEXT:    lsl.w r0, r1, r2
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r0, #0
; V7A-T-NEXT:    subs r0, #1
; V7A-T-NEXT:    sbc r1, r3, #0
; V7A-T-NEXT:    and.w r0, r0, r12
; V7A-T-NEXT:    and.w r1, r1, lr
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_a2_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r7, lr}
; V6M-NEXT:    push {r4, r5, r7, lr}
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #1
; V6M-NEXT:    movs r5, #0
; V6M-NEXT:    mov r1, r5
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    subs r2, r0, #1
; V6M-NEXT:    sbcs r1, r5
; V6M-NEXT:    ldm r4!, {r0, r3}
; V6M-NEXT:    ands r1, r3
; V6M-NEXT:    ands r0, r2
; V6M-NEXT:    pop {r4, r5, r7, pc}
  %val = load i64, ptr %w
  %onebit = shl i64 1, %numlowbits
  %mask = add nsw i64 %onebit, -1
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_a3_load_indexzext(ptr %w, i8 zeroext %numlowbits) nounwind {
; V7M-LABEL: bzhi64_a3_load_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r2, r1, #32
; V7M-NEXT:    movs r3, #1
; V7M-NEXT:    subs.w r12, r1, #32
; V7M-NEXT:    lsl.w r1, r3, r1
; V7M-NEXT:    lsr.w r2, r3, r2
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r2, r3, r12
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r1, #0
; V7M-NEXT:    subs r3, r1, #1
; V7M-NEXT:    sbc r1, r2, #0
; V7M-NEXT:    ldrd r0, r2, [r0]
; V7M-NEXT:    ands r1, r2
; V7M-NEXT:    ands r0, r3
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_a3_load_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r4, r6, r11, lr}
; V7A-NEXT:    push {r4, r6, r11, lr}
; V7A-NEXT:    ldr r6, [r0]
; V7A-NEXT:    mov r2, #1
; V7A-NEXT:    ldr r3, [r0, #4]
; V7A-NEXT:    rsb r0, r1, #32
; V7A-NEXT:    subs r4, r1, #32
; V7A-NEXT:    lsl r1, r2, r1
; V7A-NEXT:    lsr r0, r2, r0
; V7A-NEXT:    movwpl r1, #0
; V7A-NEXT:    lslpl r0, r2, r4
; V7A-NEXT:    subs r2, r1, #1
; V7A-NEXT:    sbc r0, r0, #0
; V7A-NEXT:    and r1, r0, r3
; V7A-NEXT:    and r0, r2, r6
; V7A-NEXT:    pop {r4, r6, r11, pc}
;
; V7A-T-LABEL: bzhi64_a3_load_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsb.w r3, r1, #32
; V7A-T-NEXT:    movs r2, #1
; V7A-T-NEXT:    ldrd r12, lr, [r0]
; V7A-T-NEXT:    subs.w r0, r1, #32
; V7A-T-NEXT:    lsr.w r3, r2, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r3, r2, r0
; V7A-T-NEXT:    lsl.w r0, r2, r1
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r0, #0
; V7A-T-NEXT:    subs r0, #1
; V7A-T-NEXT:    sbc r1, r3, #0
; V7A-T-NEXT:    and.w r0, r0, r12
; V7A-T-NEXT:    and.w r1, r1, lr
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_a3_load_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r7, lr}
; V6M-NEXT:    push {r4, r5, r7, lr}
; V6M-NEXT:    mov r2, r1
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #1
; V6M-NEXT:    movs r5, #0
; V6M-NEXT:    mov r1, r5
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    subs r2, r0, #1
; V6M-NEXT:    sbcs r1, r5
; V6M-NEXT:    ldm r4!, {r0, r3}
; V6M-NEXT:    ands r1, r3
; V6M-NEXT:    ands r0, r2
; V6M-NEXT:    pop {r4, r5, r7, pc}
  %val = load i64, ptr %w
  %conv = zext i8 %numlowbits to i64
  %onebit = shl i64 1, %conv
  %mask = add nsw i64 %onebit, -1
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_a4_commutative(i64 %val, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_a4_commutative:
; V7M:       @ %bb.0:
; V7M-NEXT:    .save {r7, lr}
; V7M-NEXT:    push {r7, lr}
; V7M-NEXT:    rsb.w r3, r2, #32
; V7M-NEXT:    mov.w r12, #1
; V7M-NEXT:    subs.w lr, r2, #32
; V7M-NEXT:    lsl.w r2, r12, r2
; V7M-NEXT:    lsr.w r3, r12, r3
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r3, r12, lr
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r2, #0
; V7M-NEXT:    subs r2, #1
; V7M-NEXT:    sbc r3, r3, #0
; V7M-NEXT:    ands r0, r2
; V7M-NEXT:    ands r1, r3
; V7M-NEXT:    pop {r7, pc}
;
; V7A-LABEL: bzhi64_a4_commutative:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r11, lr}
; V7A-NEXT:    push {r11, lr}
; V7A-NEXT:    rsb r12, r2, #32
; V7A-NEXT:    mov lr, #1
; V7A-NEXT:    subs r3, r2, #32
; V7A-NEXT:    lsl r2, lr, r2
; V7A-NEXT:    lsr r12, lr, r12
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    lslpl r12, lr, r3
; V7A-NEXT:    subs r2, r2, #1
; V7A-NEXT:    sbc r3, r12, #0
; V7A-NEXT:    and r0, r0, r2
; V7A-NEXT:    and r1, r1, r3
; V7A-NEXT:    pop {r11, pc}
;
; V7A-T-LABEL: bzhi64_a4_commutative:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsb.w r3, r2, #32
; V7A-T-NEXT:    mov.w r12, #1
; V7A-T-NEXT:    subs.w lr, r2, #32
; V7A-T-NEXT:    lsl.w r2, r12, r2
; V7A-T-NEXT:    lsr.w r3, r12, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r3, r12, lr
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r2, #0
; V7A-T-NEXT:    subs r2, #1
; V7A-T-NEXT:    sbc r3, r3, #0
; V7A-T-NEXT:    ands r0, r2
; V7A-T-NEXT:    ands r1, r3
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_a4_commutative:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r6, lr}
; V6M-NEXT:    push {r4, r5, r6, lr}
; V6M-NEXT:    mov r5, r1
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #1
; V6M-NEXT:    movs r6, #0
; V6M-NEXT:    mov r1, r6
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    subs r0, r0, #1
; V6M-NEXT:    sbcs r1, r6
; V6M-NEXT:    ands r1, r5
; V6M-NEXT:    ands r0, r4
; V6M-NEXT:    pop {r4, r5, r6, pc}
  %onebit = shl i64 1, %numlowbits
  %mask = add nsw i64 %onebit, -1
  %masked = and i64 %val, %mask ; swapped order
  ret i64 %masked
}

; ---------------------------------------------------------------------------- ;
; Pattern b. 32-bit
; ---------------------------------------------------------------------------- ;

define i32 @bzhi32_b0(i32 %val, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_b0:
; V7M:       @ %bb.0:
; V7M-NEXT:    mov.w r2, #-1
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    bics r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_b0:
; V7A:       @ %bb.0:
; V7A-NEXT:    mvn r2, #0
; V7A-NEXT:    bic r0, r0, r2, lsl r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_b0:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    mov.w r2, #-1
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    bics r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_b0:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #0
; V6M-NEXT:    mvns r2, r2
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    bics r0, r2
; V6M-NEXT:    bx lr
  %notmask = shl i32 -1, %numlowbits
  %mask = xor i32 %notmask, -1
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_b1_indexzext(i32 %val, i8 zeroext %numlowbits) nounwind {
; V7M-LABEL: bzhi32_b1_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    mov.w r2, #-1
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    bics r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_b1_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    mvn r2, #0
; V7A-NEXT:    bic r0, r0, r2, lsl r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_b1_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    mov.w r2, #-1
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    bics r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_b1_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #0
; V6M-NEXT:    mvns r2, r2
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    bics r0, r2
; V6M-NEXT:    bx lr
  %conv = zext i8 %numlowbits to i32
  %notmask = shl i32 -1, %conv
  %mask = xor i32 %notmask, -1
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_b2_load(ptr %w, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_b2_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    mov.w r2, #-1
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    bics r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_b2_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    mvn r2, #0
; V7A-NEXT:    bic r0, r0, r2, lsl r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_b2_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    mov.w r2, #-1
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    bics r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_b2_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #0
; V6M-NEXT:    mvns r2, r2
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    bics r0, r2
; V6M-NEXT:    bx lr
  %val = load i32, ptr %w
  %notmask = shl i32 -1, %numlowbits
  %mask = xor i32 %notmask, -1
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_b3_load_indexzext(ptr %w, i8 zeroext %numlowbits) nounwind {
; V7M-LABEL: bzhi32_b3_load_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    mov.w r2, #-1
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    bics r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_b3_load_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    mvn r2, #0
; V7A-NEXT:    bic r0, r0, r2, lsl r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_b3_load_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    mov.w r2, #-1
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    bics r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_b3_load_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #0
; V6M-NEXT:    mvns r2, r2
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    bics r0, r2
; V6M-NEXT:    bx lr
  %val = load i32, ptr %w
  %conv = zext i8 %numlowbits to i32
  %notmask = shl i32 -1, %conv
  %mask = xor i32 %notmask, -1
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_b4_commutative(i32 %val, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_b4_commutative:
; V7M:       @ %bb.0:
; V7M-NEXT:    mov.w r2, #-1
; V7M-NEXT:    lsl.w r1, r2, r1
; V7M-NEXT:    bics r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_b4_commutative:
; V7A:       @ %bb.0:
; V7A-NEXT:    mvn r2, #0
; V7A-NEXT:    bic r0, r0, r2, lsl r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_b4_commutative:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    mov.w r2, #-1
; V7A-T-NEXT:    lsl.w r1, r2, r1
; V7A-T-NEXT:    bics r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_b4_commutative:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #0
; V6M-NEXT:    mvns r2, r2
; V6M-NEXT:    lsls r2, r1
; V6M-NEXT:    bics r0, r2
; V6M-NEXT:    bx lr
  %notmask = shl i32 -1, %numlowbits
  %mask = xor i32 %notmask, -1
  %masked = and i32 %val, %mask ; swapped order
  ret i32 %masked
}

; 64-bit

define i64 @bzhi64_b0(i64 %val, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_b0:
; V7M:       @ %bb.0:
; V7M-NEXT:    mov.w r3, #-1
; V7M-NEXT:    lsl.w r12, r3, r2
; V7M-NEXT:    subs r2, #32
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl.w r12, #0
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl r3, r2
; V7M-NEXT:    bic.w r0, r0, r12
; V7M-NEXT:    bics r1, r3
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_b0:
; V7A:       @ %bb.0:
; V7A-NEXT:    subs r12, r2, #32
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    lsl r2, r3, r2
; V7A-NEXT:    lslpl r3, r3, r12
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    bic r1, r1, r3
; V7A-NEXT:    bic r0, r0, r2
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_b0:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    mov.w r3, #-1
; V7A-T-NEXT:    lsl.w r12, r3, r2
; V7A-T-NEXT:    subs r2, #32
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl.w r12, #0
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl r3, r2
; V7A-T-NEXT:    bic.w r0, r0, r12
; V7A-T-NEXT:    bics r1, r3
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_b0:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r7, lr}
; V6M-NEXT:    push {r4, r5, r7, lr}
; V6M-NEXT:    mov r4, r1
; V6M-NEXT:    mov r5, r0
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    bics r5, r0
; V6M-NEXT:    bics r4, r1
; V6M-NEXT:    mov r0, r5
; V6M-NEXT:    mov r1, r4
; V6M-NEXT:    pop {r4, r5, r7, pc}
  %notmask = shl i64 -1, %numlowbits
  %mask = xor i64 %notmask, -1
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_b1_indexzext(i64 %val, i8 zeroext %numlowbits) nounwind {
; V7M-LABEL: bzhi64_b1_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    mov.w r3, #-1
; V7M-NEXT:    lsl.w r12, r3, r2
; V7M-NEXT:    subs r2, #32
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl.w r12, #0
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl r3, r2
; V7M-NEXT:    bic.w r0, r0, r12
; V7M-NEXT:    bics r1, r3
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_b1_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    subs r12, r2, #32
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    lsl r2, r3, r2
; V7A-NEXT:    lslpl r3, r3, r12
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    bic r1, r1, r3
; V7A-NEXT:    bic r0, r0, r2
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_b1_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    mov.w r3, #-1
; V7A-T-NEXT:    lsl.w r12, r3, r2
; V7A-T-NEXT:    subs r2, #32
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl.w r12, #0
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl r3, r2
; V7A-T-NEXT:    bic.w r0, r0, r12
; V7A-T-NEXT:    bics r1, r3
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_b1_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r7, lr}
; V6M-NEXT:    push {r4, r5, r7, lr}
; V6M-NEXT:    mov r4, r1
; V6M-NEXT:    mov r5, r0
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    bics r5, r0
; V6M-NEXT:    bics r4, r1
; V6M-NEXT:    mov r0, r5
; V6M-NEXT:    mov r1, r4
; V6M-NEXT:    pop {r4, r5, r7, pc}
  %conv = zext i8 %numlowbits to i64
  %notmask = shl i64 -1, %conv
  %mask = xor i64 %notmask, -1
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_b2_load(ptr %w, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_b2_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    mov.w r1, #-1
; V7M-NEXT:    subs.w r12, r2, #32
; V7M-NEXT:    lsl.w r3, r1, r2
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r3, #0
; V7M-NEXT:    ldrd r0, r2, [r0]
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r1, r1, r12
; V7M-NEXT:    bics r0, r3
; V7M-NEXT:    bic.w r1, r2, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_b2_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r4, lr}
; V7A-NEXT:    push {r4, lr}
; V7A-NEXT:    ldr r4, [r0]
; V7A-NEXT:    mvn r1, #0
; V7A-NEXT:    ldr r3, [r0, #4]
; V7A-NEXT:    subs r0, r2, #32
; V7A-NEXT:    lsl r2, r1, r2
; V7A-NEXT:    lslpl r1, r1, r0
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    bic r1, r3, r1
; V7A-NEXT:    bic r0, r4, r2
; V7A-NEXT:    pop {r4, pc}
;
; V7A-T-LABEL: bzhi64_b2_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    mov.w r1, #-1
; V7A-T-NEXT:    ldrd r0, r12, [r0]
; V7A-T-NEXT:    lsl.w r3, r1, r2
; V7A-T-NEXT:    subs r2, #32
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r3, #0
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl r1, r2
; V7A-T-NEXT:    bics r0, r3
; V7A-T-NEXT:    bic.w r1, r12, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_b2_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, lr}
; V6M-NEXT:    push {r4, lr}
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    ldm r4!, {r2, r3}
; V6M-NEXT:    bics r2, r0
; V6M-NEXT:    bics r3, r1
; V6M-NEXT:    mov r0, r2
; V6M-NEXT:    mov r1, r3
; V6M-NEXT:    pop {r4, pc}
  %val = load i64, ptr %w
  %notmask = shl i64 -1, %numlowbits
  %mask = xor i64 %notmask, -1
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_b3_load_indexzext(ptr %w, i8 zeroext %numlowbits) nounwind {
; V7M-LABEL: bzhi64_b3_load_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    mov.w r2, #-1
; V7M-NEXT:    subs.w r12, r1, #32
; V7M-NEXT:    lsl.w r3, r2, r1
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r3, #0
; V7M-NEXT:    ldrd r0, r1, [r0]
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r2, r2, r12
; V7M-NEXT:    bics r1, r2
; V7M-NEXT:    bics r0, r3
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_b3_load_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r4, r6, r11, lr}
; V7A-NEXT:    push {r4, r6, r11, lr}
; V7A-NEXT:    mvn r2, #0
; V7A-NEXT:    ldr r6, [r0]
; V7A-NEXT:    ldr r3, [r0, #4]
; V7A-NEXT:    subs r0, r1, #32
; V7A-NEXT:    lsl r4, r2, r1
; V7A-NEXT:    lslpl r2, r2, r0
; V7A-NEXT:    movwpl r4, #0
; V7A-NEXT:    bic r1, r3, r2
; V7A-NEXT:    bic r0, r6, r4
; V7A-NEXT:    pop {r4, r6, r11, pc}
;
; V7A-T-LABEL: bzhi64_b3_load_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    mov.w r2, #-1
; V7A-T-NEXT:    ldrd r0, r12, [r0]
; V7A-T-NEXT:    lsl.w r3, r2, r1
; V7A-T-NEXT:    subs r1, #32
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r3, #0
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl r2, r1
; V7A-T-NEXT:    bics r0, r3
; V7A-T-NEXT:    bic.w r1, r12, r2
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_b3_load_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, lr}
; V6M-NEXT:    push {r4, lr}
; V6M-NEXT:    mov r2, r1
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    ldm r4!, {r2, r3}
; V6M-NEXT:    bics r2, r0
; V6M-NEXT:    bics r3, r1
; V6M-NEXT:    mov r0, r2
; V6M-NEXT:    mov r1, r3
; V6M-NEXT:    pop {r4, pc}
  %val = load i64, ptr %w
  %conv = zext i8 %numlowbits to i64
  %notmask = shl i64 -1, %conv
  %mask = xor i64 %notmask, -1
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_b4_commutative(i64 %val, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_b4_commutative:
; V7M:       @ %bb.0:
; V7M-NEXT:    mov.w r3, #-1
; V7M-NEXT:    lsl.w r12, r3, r2
; V7M-NEXT:    subs r2, #32
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl.w r12, #0
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl r3, r2
; V7M-NEXT:    bic.w r0, r0, r12
; V7M-NEXT:    bics r1, r3
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_b4_commutative:
; V7A:       @ %bb.0:
; V7A-NEXT:    subs r12, r2, #32
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    lsl r2, r3, r2
; V7A-NEXT:    lslpl r3, r3, r12
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    bic r1, r1, r3
; V7A-NEXT:    bic r0, r0, r2
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_b4_commutative:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    mov.w r3, #-1
; V7A-T-NEXT:    lsl.w r12, r3, r2
; V7A-T-NEXT:    subs r2, #32
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl.w r12, #0
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl r3, r2
; V7A-T-NEXT:    bic.w r0, r0, r12
; V7A-T-NEXT:    bics r1, r3
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_b4_commutative:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r7, lr}
; V6M-NEXT:    push {r4, r5, r7, lr}
; V6M-NEXT:    mov r4, r1
; V6M-NEXT:    mov r5, r0
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    bics r5, r0
; V6M-NEXT:    bics r4, r1
; V6M-NEXT:    mov r0, r5
; V6M-NEXT:    mov r1, r4
; V6M-NEXT:    pop {r4, r5, r7, pc}
  %notmask = shl i64 -1, %numlowbits
  %mask = xor i64 %notmask, -1
  %masked = and i64 %val, %mask ; swapped order
  ret i64 %masked
}

; ---------------------------------------------------------------------------- ;
; Pattern c. 32-bit
; ---------------------------------------------------------------------------- ;

define i32 @bzhi32_c0(i32 %val, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_c0:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r1, #32
; V7M-NEXT:    lsls r0, r1
; V7M-NEXT:    lsrs r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_c0:
; V7A:       @ %bb.0:
; V7A-NEXT:    rsb r1, r1, #32
; V7A-NEXT:    lsl r0, r0, r1
; V7A-NEXT:    lsr r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_c0:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    rsb.w r1, r1, #32
; V7A-T-NEXT:    lsls r0, r1
; V7A-T-NEXT:    lsrs r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_c0:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #32
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    lsls r0, r1
; V6M-NEXT:    lsrs r0, r1
; V6M-NEXT:    bx lr
  %numhighbits = sub i32 32, %numlowbits
  %mask = lshr i32 -1, %numhighbits
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_c1_indexzext(i32 %val, i8 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_c1_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r1, #32
; V7M-NEXT:    uxtb r1, r1
; V7M-NEXT:    lsls r0, r1
; V7M-NEXT:    lsrs r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_c1_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    rsb r1, r1, #32
; V7A-NEXT:    uxtb r1, r1
; V7A-NEXT:    lsl r0, r0, r1
; V7A-NEXT:    lsr r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_c1_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    rsb.w r1, r1, #32
; V7A-T-NEXT:    uxtb r1, r1
; V7A-T-NEXT:    lsls r0, r1
; V7A-T-NEXT:    lsrs r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_c1_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #32
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    uxtb r1, r1
; V6M-NEXT:    lsls r0, r1
; V6M-NEXT:    lsrs r0, r1
; V6M-NEXT:    bx lr
  %numhighbits = sub i8 32, %numlowbits
  %sh_prom = zext i8 %numhighbits to i32
  %mask = lshr i32 -1, %sh_prom
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_c2_load(ptr %w, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_c2_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    rsb.w r1, r1, #32
; V7M-NEXT:    lsls r0, r1
; V7M-NEXT:    lsrs r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_c2_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    rsb r1, r1, #32
; V7A-NEXT:    lsl r0, r0, r1
; V7A-NEXT:    lsr r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_c2_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    rsb.w r1, r1, #32
; V7A-T-NEXT:    lsls r0, r1
; V7A-T-NEXT:    lsrs r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_c2_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #32
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    lsls r0, r1
; V6M-NEXT:    lsrs r0, r1
; V6M-NEXT:    bx lr
  %val = load i32, ptr %w
  %numhighbits = sub i32 32, %numlowbits
  %mask = lshr i32 -1, %numhighbits
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_c3_load_indexzext(ptr %w, i8 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_c3_load_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r1, #32
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    uxtb r1, r1
; V7M-NEXT:    lsls r0, r1
; V7M-NEXT:    lsrs r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_c3_load_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    rsb r1, r1, #32
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    uxtb r1, r1
; V7A-NEXT:    lsl r0, r0, r1
; V7A-NEXT:    lsr r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_c3_load_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    rsb.w r1, r1, #32
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    uxtb r1, r1
; V7A-T-NEXT:    lsls r0, r1
; V7A-T-NEXT:    lsrs r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_c3_load_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #32
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    uxtb r1, r1
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    lsls r0, r1
; V6M-NEXT:    lsrs r0, r1
; V6M-NEXT:    bx lr
  %val = load i32, ptr %w
  %numhighbits = sub i8 32, %numlowbits
  %sh_prom = zext i8 %numhighbits to i32
  %mask = lshr i32 -1, %sh_prom
  %masked = and i32 %mask, %val
  ret i32 %masked
}

define i32 @bzhi32_c4_commutative(i32 %val, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_c4_commutative:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r1, #32
; V7M-NEXT:    lsls r0, r1
; V7M-NEXT:    lsrs r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_c4_commutative:
; V7A:       @ %bb.0:
; V7A-NEXT:    rsb r1, r1, #32
; V7A-NEXT:    lsl r0, r0, r1
; V7A-NEXT:    lsr r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_c4_commutative:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    rsb.w r1, r1, #32
; V7A-T-NEXT:    lsls r0, r1
; V7A-T-NEXT:    lsrs r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_c4_commutative:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #32
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    lsls r0, r1
; V6M-NEXT:    lsrs r0, r1
; V6M-NEXT:    bx lr
  %numhighbits = sub i32 32, %numlowbits
  %mask = lshr i32 -1, %numhighbits
  %masked = and i32 %val, %mask ; swapped order
  ret i32 %masked
}

; 64-bit

define i64 @bzhi64_c0(i64 %val, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_c0:
; V7M:       @ %bb.0:
; V7M-NEXT:    .save {r7, lr}
; V7M-NEXT:    push {r7, lr}
; V7M-NEXT:    rsbs.w lr, r2, #32
; V7M-NEXT:    rsb.w r2, r2, #64
; V7M-NEXT:    mov.w r12, #-1
; V7M-NEXT:    mov.w r3, #-1
; V7M-NEXT:    lsr.w r2, r12, r2
; V7M-NEXT:    it pl
; V7M-NEXT:    lsrpl.w r3, r3, lr
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r2, #0
; V7M-NEXT:    ands r0, r3
; V7M-NEXT:    ands r1, r2
; V7M-NEXT:    pop {r7, pc}
;
; V7A-LABEL: bzhi64_c0:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r11, lr}
; V7A-NEXT:    push {r11, lr}
; V7A-NEXT:    rsbs lr, r2, #32
; V7A-NEXT:    rsb r2, r2, #64
; V7A-NEXT:    mvn r12, #0
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    lsr r2, r12, r2
; V7A-NEXT:    lsrpl r3, r3, lr
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    and r0, r3, r0
; V7A-NEXT:    and r1, r2, r1
; V7A-NEXT:    pop {r11, pc}
;
; V7A-T-LABEL: bzhi64_c0:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsbs.w lr, r2, #32
; V7A-T-NEXT:    rsb.w r2, r2, #64
; V7A-T-NEXT:    mov.w r12, #-1
; V7A-T-NEXT:    mov.w r3, #-1
; V7A-T-NEXT:    lsr.w r2, r12, r2
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lsrpl.w r3, r3, lr
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r2, #0
; V7A-T-NEXT:    ands r0, r3
; V7A-T-NEXT:    ands r1, r2
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_c0:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r7, lr}
; V6M-NEXT:    push {r4, r5, r7, lr}
; V6M-NEXT:    mov r4, r1
; V6M-NEXT:    mov r5, r0
; V6M-NEXT:    movs r0, #64
; V6M-NEXT:    subs r2, r0, r2
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsr
; V6M-NEXT:    ands r0, r5
; V6M-NEXT:    ands r1, r4
; V6M-NEXT:    pop {r4, r5, r7, pc}
  %numhighbits = sub i64 64, %numlowbits
  %mask = lshr i64 -1, %numhighbits
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_c1_indexzext(i64 %val, i8 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_c1_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r2, r2, #64
; V7M-NEXT:    mov.w r3, #-1
; V7M-NEXT:    uxtb r2, r2
; V7M-NEXT:    subs.w r12, r2, #32
; V7M-NEXT:    lsr.w r2, r3, r2
; V7M-NEXT:    it pl
; V7M-NEXT:    lsrpl.w r3, r3, r12
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r2, #0
; V7M-NEXT:    ands r0, r3
; V7M-NEXT:    ands r1, r2
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_c1_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r11, lr}
; V7A-NEXT:    push {r11, lr}
; V7A-NEXT:    rsb lr, r2, #64
; V7A-NEXT:    mvn r2, #31
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    uxtb r12, lr
; V7A-NEXT:    uxtab r2, r2, lr
; V7A-NEXT:    lsr r12, r3, r12
; V7A-NEXT:    cmp r2, #0
; V7A-NEXT:    movwpl r12, #0
; V7A-NEXT:    lsrpl r3, r3, r2
; V7A-NEXT:    and r1, r12, r1
; V7A-NEXT:    and r0, r3, r0
; V7A-NEXT:    pop {r11, pc}
;
; V7A-T-LABEL: bzhi64_c1_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsb.w lr, r2, #64
; V7A-T-NEXT:    mvn r2, #31
; V7A-T-NEXT:    mov.w r3, #-1
; V7A-T-NEXT:    uxtb.w r12, lr
; V7A-T-NEXT:    uxtab r2, r2, lr
; V7A-T-NEXT:    lsr.w r12, r3, r12
; V7A-T-NEXT:    cmp r2, #0
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl.w r12, #0
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lsrpl r3, r2
; V7A-T-NEXT:    and.w r1, r1, r12
; V7A-T-NEXT:    ands r0, r3
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_c1_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r7, lr}
; V6M-NEXT:    push {r4, r5, r7, lr}
; V6M-NEXT:    mov r4, r1
; V6M-NEXT:    mov r5, r0
; V6M-NEXT:    movs r0, #64
; V6M-NEXT:    subs r0, r0, r2
; V6M-NEXT:    uxtb r2, r0
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsr
; V6M-NEXT:    ands r0, r5
; V6M-NEXT:    ands r1, r4
; V6M-NEXT:    pop {r4, r5, r7, pc}
  %numhighbits = sub i8 64, %numlowbits
  %sh_prom = zext i8 %numhighbits to i64
  %mask = lshr i64 -1, %sh_prom
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_c2_load(ptr %w, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_c2_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsbs.w r1, r2, #32
; V7M-NEXT:    mov.w r3, #-1
; V7M-NEXT:    rsb.w r2, r2, #64
; V7M-NEXT:    it pl
; V7M-NEXT:    lsrpl r3, r1
; V7M-NEXT:    ldrd r0, r1, [r0]
; V7M-NEXT:    mov.w r12, #-1
; V7M-NEXT:    lsr.w r2, r12, r2
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r2, #0
; V7M-NEXT:    ands r0, r3
; V7M-NEXT:    ands r1, r2
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_c2_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r5, lr}
; V7A-NEXT:    push {r5, lr}
; V7A-NEXT:    rsbs r1, r2, #32
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    mvn r12, #0
; V7A-NEXT:    ldm r0, {r0, r5}
; V7A-NEXT:    lsrpl r3, r3, r1
; V7A-NEXT:    rsb r1, r2, #64
; V7A-NEXT:    and r0, r3, r0
; V7A-NEXT:    lsr r1, r12, r1
; V7A-NEXT:    movwpl r1, #0
; V7A-NEXT:    and r1, r1, r5
; V7A-NEXT:    pop {r5, pc}
;
; V7A-T-LABEL: bzhi64_c2_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsbs.w r1, r2, #32
; V7A-T-NEXT:    mov.w r3, #-1
; V7A-T-NEXT:    ldrd r0, lr, [r0]
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lsrpl r3, r1
; V7A-T-NEXT:    rsb.w r1, r2, #64
; V7A-T-NEXT:    mov.w r12, #-1
; V7A-T-NEXT:    and.w r0, r0, r3
; V7A-T-NEXT:    lsr.w r1, r12, r1
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r1, #0
; V7A-T-NEXT:    and.w r1, r1, lr
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_c2_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, lr}
; V6M-NEXT:    push {r4, lr}
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #64
; V6M-NEXT:    subs r2, r0, r2
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsr
; V6M-NEXT:    ldm r4!, {r2, r3}
; V6M-NEXT:    ands r0, r2
; V6M-NEXT:    ands r1, r3
; V6M-NEXT:    pop {r4, pc}
  %val = load i64, ptr %w
  %numhighbits = sub i64 64, %numlowbits
  %mask = lshr i64 -1, %numhighbits
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_c3_load_indexzext(ptr %w, i8 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_c3_load_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r1, #64
; V7M-NEXT:    mov.w r3, #-1
; V7M-NEXT:    uxtb r1, r1
; V7M-NEXT:    subs.w r2, r1, #32
; V7M-NEXT:    lsr.w r1, r3, r1
; V7M-NEXT:    it pl
; V7M-NEXT:    lsrpl r3, r2
; V7M-NEXT:    ldrd r0, r2, [r0]
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r1, #0
; V7M-NEXT:    ands r1, r2
; V7M-NEXT:    ands r0, r3
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_c3_load_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r4, r6, r11, lr}
; V7A-NEXT:    push {r4, r6, r11, lr}
; V7A-NEXT:    rsb r1, r1, #64
; V7A-NEXT:    mvn r4, #31
; V7A-NEXT:    mvn r2, #0
; V7A-NEXT:    ldr r6, [r0]
; V7A-NEXT:    ldr r3, [r0, #4]
; V7A-NEXT:    uxtb r0, r1
; V7A-NEXT:    uxtab r4, r4, r1
; V7A-NEXT:    lsr r0, r2, r0
; V7A-NEXT:    cmp r4, #0
; V7A-NEXT:    movwpl r0, #0
; V7A-NEXT:    and r1, r0, r3
; V7A-NEXT:    lsrpl r2, r2, r4
; V7A-NEXT:    and r0, r2, r6
; V7A-NEXT:    pop {r4, r6, r11, pc}
;
; V7A-T-LABEL: bzhi64_c3_load_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsb.w r1, r1, #64
; V7A-T-NEXT:    mvn r3, #31
; V7A-T-NEXT:    ldrd r12, lr, [r0]
; V7A-T-NEXT:    mov.w r2, #-1
; V7A-T-NEXT:    uxtb r0, r1
; V7A-T-NEXT:    uxtab r3, r3, r1
; V7A-T-NEXT:    lsr.w r0, r2, r0
; V7A-T-NEXT:    cmp r3, #0
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r0, #0
; V7A-T-NEXT:    and.w r1, r0, lr
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lsrpl r2, r3
; V7A-T-NEXT:    and.w r0, r2, r12
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_c3_load_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, lr}
; V6M-NEXT:    push {r4, lr}
; V6M-NEXT:    mov r4, r0
; V6M-NEXT:    movs r0, #64
; V6M-NEXT:    subs r0, r0, r1
; V6M-NEXT:    uxtb r2, r0
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsr
; V6M-NEXT:    ldm r4!, {r2, r3}
; V6M-NEXT:    ands r0, r2
; V6M-NEXT:    ands r1, r3
; V6M-NEXT:    pop {r4, pc}
  %val = load i64, ptr %w
  %numhighbits = sub i8 64, %numlowbits
  %sh_prom = zext i8 %numhighbits to i64
  %mask = lshr i64 -1, %sh_prom
  %masked = and i64 %mask, %val
  ret i64 %masked
}

define i64 @bzhi64_c4_commutative(i64 %val, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_c4_commutative:
; V7M:       @ %bb.0:
; V7M-NEXT:    .save {r7, lr}
; V7M-NEXT:    push {r7, lr}
; V7M-NEXT:    rsbs.w lr, r2, #32
; V7M-NEXT:    rsb.w r2, r2, #64
; V7M-NEXT:    mov.w r12, #-1
; V7M-NEXT:    mov.w r3, #-1
; V7M-NEXT:    lsr.w r2, r12, r2
; V7M-NEXT:    it pl
; V7M-NEXT:    lsrpl.w r3, r3, lr
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r2, #0
; V7M-NEXT:    ands r0, r3
; V7M-NEXT:    ands r1, r2
; V7M-NEXT:    pop {r7, pc}
;
; V7A-LABEL: bzhi64_c4_commutative:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r11, lr}
; V7A-NEXT:    push {r11, lr}
; V7A-NEXT:    rsbs lr, r2, #32
; V7A-NEXT:    rsb r2, r2, #64
; V7A-NEXT:    mvn r12, #0
; V7A-NEXT:    mvn r3, #0
; V7A-NEXT:    lsr r2, r12, r2
; V7A-NEXT:    lsrpl r3, r3, lr
; V7A-NEXT:    movwpl r2, #0
; V7A-NEXT:    and r0, r0, r3
; V7A-NEXT:    and r1, r1, r2
; V7A-NEXT:    pop {r11, pc}
;
; V7A-T-LABEL: bzhi64_c4_commutative:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsbs.w lr, r2, #32
; V7A-T-NEXT:    rsb.w r2, r2, #64
; V7A-T-NEXT:    mov.w r12, #-1
; V7A-T-NEXT:    mov.w r3, #-1
; V7A-T-NEXT:    lsr.w r2, r12, r2
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lsrpl.w r3, r3, lr
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r2, #0
; V7A-T-NEXT:    ands r0, r3
; V7A-T-NEXT:    ands r1, r2
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_c4_commutative:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, r5, r7, lr}
; V6M-NEXT:    push {r4, r5, r7, lr}
; V6M-NEXT:    mov r4, r1
; V6M-NEXT:    mov r5, r0
; V6M-NEXT:    movs r0, #64
; V6M-NEXT:    subs r2, r0, r2
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    mvns r0, r0
; V6M-NEXT:    mov r1, r0
; V6M-NEXT:    bl __aeabi_llsr
; V6M-NEXT:    ands r0, r5
; V6M-NEXT:    ands r1, r4
; V6M-NEXT:    pop {r4, r5, r7, pc}
  %numhighbits = sub i64 64, %numlowbits
  %mask = lshr i64 -1, %numhighbits
  %masked = and i64 %val, %mask ; swapped order
  ret i64 %masked
}

; ---------------------------------------------------------------------------- ;
; Pattern d. 32-bit.
; ---------------------------------------------------------------------------- ;

define i32 @bzhi32_d0(i32 %val, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_d0:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r1, #32
; V7M-NEXT:    lsls r0, r1
; V7M-NEXT:    lsrs r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_d0:
; V7A:       @ %bb.0:
; V7A-NEXT:    rsb r1, r1, #32
; V7A-NEXT:    lsl r0, r0, r1
; V7A-NEXT:    lsr r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_d0:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    rsb.w r1, r1, #32
; V7A-T-NEXT:    lsls r0, r1
; V7A-T-NEXT:    lsrs r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_d0:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #32
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    lsls r0, r1
; V6M-NEXT:    lsrs r0, r1
; V6M-NEXT:    bx lr
  %numhighbits = sub i32 32, %numlowbits
  %highbitscleared = shl i32 %val, %numhighbits
  %masked = lshr i32 %highbitscleared, %numhighbits
  ret i32 %masked
}

define i32 @bzhi32_d1_indexzext(i32 %val, i8 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_d1_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r1, #32
; V7M-NEXT:    uxtb r1, r1
; V7M-NEXT:    lsls r0, r1
; V7M-NEXT:    lsrs r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_d1_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    rsb r1, r1, #32
; V7A-NEXT:    uxtb r1, r1
; V7A-NEXT:    lsl r0, r0, r1
; V7A-NEXT:    lsr r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_d1_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    rsb.w r1, r1, #32
; V7A-T-NEXT:    uxtb r1, r1
; V7A-T-NEXT:    lsls r0, r1
; V7A-T-NEXT:    lsrs r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_d1_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #32
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    uxtb r1, r1
; V6M-NEXT:    lsls r0, r1
; V6M-NEXT:    lsrs r0, r1
; V6M-NEXT:    bx lr
  %numhighbits = sub i8 32, %numlowbits
  %sh_prom = zext i8 %numhighbits to i32
  %highbitscleared = shl i32 %val, %sh_prom
  %masked = lshr i32 %highbitscleared, %sh_prom
  ret i32 %masked
}

define i32 @bzhi32_d2_load(ptr %w, i32 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_d2_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    rsb.w r1, r1, #32
; V7M-NEXT:    lsls r0, r1
; V7M-NEXT:    lsrs r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_d2_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    rsb r1, r1, #32
; V7A-NEXT:    lsl r0, r0, r1
; V7A-NEXT:    lsr r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_d2_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    rsb.w r1, r1, #32
; V7A-T-NEXT:    lsls r0, r1
; V7A-T-NEXT:    lsrs r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_d2_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #32
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    lsls r0, r1
; V6M-NEXT:    lsrs r0, r1
; V6M-NEXT:    bx lr
  %val = load i32, ptr %w
  %numhighbits = sub i32 32, %numlowbits
  %highbitscleared = shl i32 %val, %numhighbits
  %masked = lshr i32 %highbitscleared, %numhighbits
  ret i32 %masked
}

define i32 @bzhi32_d3_load_indexzext(ptr %w, i8 %numlowbits) nounwind {
; V7M-LABEL: bzhi32_d3_load_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r1, #32
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    uxtb r1, r1
; V7M-NEXT:    lsls r0, r1
; V7M-NEXT:    lsrs r0, r1
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_d3_load_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    rsb r1, r1, #32
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    uxtb r1, r1
; V7A-NEXT:    lsl r0, r0, r1
; V7A-NEXT:    lsr r0, r0, r1
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_d3_load_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    rsb.w r1, r1, #32
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    uxtb r1, r1
; V7A-T-NEXT:    lsls r0, r1
; V7A-T-NEXT:    lsrs r0, r1
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_d3_load_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #32
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    uxtb r1, r1
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    lsls r0, r1
; V6M-NEXT:    lsrs r0, r1
; V6M-NEXT:    bx lr
  %val = load i32, ptr %w
  %numhighbits = sub i8 32, %numlowbits
  %sh_prom = zext i8 %numhighbits to i32
  %highbitscleared = shl i32 %val, %sh_prom
  %masked = lshr i32 %highbitscleared, %sh_prom
  ret i32 %masked
}

; 64-bit.

define i64 @bzhi64_d0(i64 %val, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_d0:
; V7M:       @ %bb.0:
; V7M-NEXT:    .save {r7, lr}
; V7M-NEXT:    push {r7, lr}
; V7M-NEXT:    rsb.w r3, r2, #64
; V7M-NEXT:    rsbs.w r2, r2, #32
; V7M-NEXT:    rsb.w lr, r3, #32
; V7M-NEXT:    lsl.w r12, r1, r3
; V7M-NEXT:    lsr.w r1, r0, lr
; V7M-NEXT:    orr.w r1, r1, r12
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r1, r0, r2
; V7M-NEXT:    lsl.w r0, r0, r3
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r0, #0
; V7M-NEXT:    lsl.w r12, r1, lr
; V7M-NEXT:    lsr.w r0, r0, r3
; V7M-NEXT:    orr.w r0, r0, r12
; V7M-NEXT:    it pl
; V7M-NEXT:    lsrpl.w r0, r1, r2
; V7M-NEXT:    lsr.w r1, r1, r3
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r1, #0
; V7M-NEXT:    pop {r7, pc}
;
; V7A-LABEL: bzhi64_d0:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r11, lr}
; V7A-NEXT:    push {r11, lr}
; V7A-NEXT:    rsb lr, r2, #64
; V7A-NEXT:    rsbs r2, r2, #32
; V7A-NEXT:    rsb r12, lr, #32
; V7A-NEXT:    lsr r3, r0, r12
; V7A-NEXT:    orr r1, r3, r1, lsl lr
; V7A-NEXT:    lslpl r1, r0, r2
; V7A-NEXT:    lsl r0, r0, lr
; V7A-NEXT:    movwpl r0, #0
; V7A-NEXT:    lsr r0, r0, lr
; V7A-NEXT:    orr r0, r0, r1, lsl r12
; V7A-NEXT:    lsrpl r0, r1, r2
; V7A-NEXT:    lsr r1, r1, lr
; V7A-NEXT:    movwpl r1, #0
; V7A-NEXT:    pop {r11, pc}
;
; V7A-T-LABEL: bzhi64_d0:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsb.w r3, r2, #64
; V7A-T-NEXT:    rsbs.w r2, r2, #32
; V7A-T-NEXT:    rsb.w lr, r3, #32
; V7A-T-NEXT:    lsl.w r12, r1, r3
; V7A-T-NEXT:    lsr.w r1, r0, lr
; V7A-T-NEXT:    orr.w r1, r1, r12
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r1, r0, r2
; V7A-T-NEXT:    lsl.w r0, r0, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r0, #0
; V7A-T-NEXT:    lsl.w r12, r1, lr
; V7A-T-NEXT:    lsr.w r0, r0, r3
; V7A-T-NEXT:    orr.w r0, r0, r12
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lsrpl.w r0, r1, r2
; V7A-T-NEXT:    lsr.w r1, r1, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r1, #0
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_d0:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, lr}
; V6M-NEXT:    push {r4, lr}
; V6M-NEXT:    movs r3, #64
; V6M-NEXT:    subs r4, r3, r2
; V6M-NEXT:    mov r2, r4
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    mov r2, r4
; V6M-NEXT:    bl __aeabi_llsr
; V6M-NEXT:    pop {r4, pc}
  %numhighbits = sub i64 64, %numlowbits
  %highbitscleared = shl i64 %val, %numhighbits
  %masked = lshr i64 %highbitscleared, %numhighbits
  ret i64 %masked
}

define i64 @bzhi64_d1_indexzext(i64 %val, i8 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_d1_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r2, r2, #64
; V7M-NEXT:    uxtb r2, r2
; V7M-NEXT:    rsb.w r3, r2, #32
; V7M-NEXT:    lsl.w r12, r1, r2
; V7M-NEXT:    lsr.w r1, r0, r3
; V7M-NEXT:    orr.w r1, r1, r12
; V7M-NEXT:    subs.w r12, r2, #32
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r1, r0, r12
; V7M-NEXT:    lsl.w r0, r0, r2
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r0, #0
; V7M-NEXT:    lsl.w r3, r1, r3
; V7M-NEXT:    lsr.w r0, r0, r2
; V7M-NEXT:    orr.w r0, r0, r3
; V7M-NEXT:    it pl
; V7M-NEXT:    lsrpl.w r0, r1, r12
; V7M-NEXT:    lsr.w r1, r1, r2
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r1, #0
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_d1_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r11, lr}
; V7A-NEXT:    push {r11, lr}
; V7A-NEXT:    rsb lr, r2, #64
; V7A-NEXT:    uxtb r3, lr
; V7A-NEXT:    rsb r12, r3, #32
; V7A-NEXT:    lsr r2, r0, r12
; V7A-NEXT:    orr r1, r2, r1, lsl r3
; V7A-NEXT:    mvn r2, #31
; V7A-NEXT:    uxtab r2, r2, lr
; V7A-NEXT:    cmp r2, #0
; V7A-NEXT:    lslpl r1, r0, r2
; V7A-NEXT:    lsl r0, r0, r3
; V7A-NEXT:    movwpl r0, #0
; V7A-NEXT:    lsr r0, r0, r3
; V7A-NEXT:    orr r0, r0, r1, lsl r12
; V7A-NEXT:    lsrpl r0, r1, r2
; V7A-NEXT:    lsr r1, r1, r3
; V7A-NEXT:    movwpl r1, #0
; V7A-NEXT:    pop {r11, pc}
;
; V7A-T-LABEL: bzhi64_d1_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r4, lr}
; V7A-T-NEXT:    push {r4, lr}
; V7A-T-NEXT:    rsb.w r4, r2, #64
; V7A-T-NEXT:    mvn r2, #31
; V7A-T-NEXT:    uxtb r3, r4
; V7A-T-NEXT:    rsb.w lr, r3, #32
; V7A-T-NEXT:    lsl.w r12, r1, r3
; V7A-T-NEXT:    uxtab r2, r2, r4
; V7A-T-NEXT:    lsr.w r1, r0, lr
; V7A-T-NEXT:    cmp r2, #0
; V7A-T-NEXT:    orr.w r1, r1, r12
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r1, r0, r2
; V7A-T-NEXT:    lsl.w r0, r0, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r0, #0
; V7A-T-NEXT:    lsl.w r4, r1, lr
; V7A-T-NEXT:    lsr.w r0, r0, r3
; V7A-T-NEXT:    orr.w r0, r0, r4
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lsrpl.w r0, r1, r2
; V7A-T-NEXT:    lsr.w r1, r1, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r1, #0
; V7A-T-NEXT:    pop {r4, pc}
;
; V6M-LABEL: bzhi64_d1_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, lr}
; V6M-NEXT:    push {r4, lr}
; V6M-NEXT:    movs r3, #64
; V6M-NEXT:    subs r2, r3, r2
; V6M-NEXT:    uxtb r4, r2
; V6M-NEXT:    mov r2, r4
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    mov r2, r4
; V6M-NEXT:    bl __aeabi_llsr
; V6M-NEXT:    pop {r4, pc}
  %numhighbits = sub i8 64, %numlowbits
  %sh_prom = zext i8 %numhighbits to i64
  %highbitscleared = shl i64 %val, %sh_prom
  %masked = lshr i64 %highbitscleared, %sh_prom
  ret i64 %masked
}

define i64 @bzhi64_d2_load(ptr %w, i64 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_d2_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    .save {r7, lr}
; V7M-NEXT:    push {r7, lr}
; V7M-NEXT:    rsb.w r1, r2, #64
; V7M-NEXT:    ldrd r0, r3, [r0]
; V7M-NEXT:    rsb.w lr, r1, #32
; V7M-NEXT:    rsbs.w r2, r2, #32
; V7M-NEXT:    lsl.w r12, r3, r1
; V7M-NEXT:    lsr.w r3, r0, lr
; V7M-NEXT:    orr.w r3, r3, r12
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r3, r0, r2
; V7M-NEXT:    lsl.w r0, r0, r1
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r0, #0
; V7M-NEXT:    lsl.w r12, r3, lr
; V7M-NEXT:    lsr.w r0, r0, r1
; V7M-NEXT:    lsr.w r1, r3, r1
; V7M-NEXT:    orr.w r0, r0, r12
; V7M-NEXT:    it pl
; V7M-NEXT:    lsrpl.w r0, r3, r2
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r1, #0
; V7M-NEXT:    pop {r7, pc}
;
; V7A-LABEL: bzhi64_d2_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r5, lr}
; V7A-NEXT:    push {r5, lr}
; V7A-NEXT:    rsb r3, r2, #64
; V7A-NEXT:    ldm r0, {r0, r5}
; V7A-NEXT:    rsb r12, r3, #32
; V7A-NEXT:    rsbs r2, r2, #32
; V7A-NEXT:    lsr r1, r0, r12
; V7A-NEXT:    orr r1, r1, r5, lsl r3
; V7A-NEXT:    lslpl r1, r0, r2
; V7A-NEXT:    lsl r0, r0, r3
; V7A-NEXT:    movwpl r0, #0
; V7A-NEXT:    lsr r0, r0, r3
; V7A-NEXT:    orr r0, r0, r1, lsl r12
; V7A-NEXT:    lsrpl r0, r1, r2
; V7A-NEXT:    lsr r1, r1, r3
; V7A-NEXT:    movwpl r1, #0
; V7A-NEXT:    pop {r5, pc}
;
; V7A-T-LABEL: bzhi64_d2_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r7, lr}
; V7A-T-NEXT:    push {r7, lr}
; V7A-T-NEXT:    rsb.w r3, r2, #64
; V7A-T-NEXT:    ldrd r0, r1, [r0]
; V7A-T-NEXT:    rsb.w lr, r3, #32
; V7A-T-NEXT:    rsbs.w r2, r2, #32
; V7A-T-NEXT:    lsl.w r12, r1, r3
; V7A-T-NEXT:    lsr.w r1, r0, lr
; V7A-T-NEXT:    orr.w r1, r1, r12
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r1, r0, r2
; V7A-T-NEXT:    lsl.w r0, r0, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r0, #0
; V7A-T-NEXT:    lsl.w r12, r1, lr
; V7A-T-NEXT:    lsr.w r0, r0, r3
; V7A-T-NEXT:    orr.w r0, r0, r12
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lsrpl.w r0, r1, r2
; V7A-T-NEXT:    lsr.w r1, r1, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r1, #0
; V7A-T-NEXT:    pop {r7, pc}
;
; V6M-LABEL: bzhi64_d2_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, lr}
; V6M-NEXT:    push {r4, lr}
; V6M-NEXT:    movs r1, #64
; V6M-NEXT:    subs r4, r1, r2
; V6M-NEXT:    ldr r2, [r0]
; V6M-NEXT:    ldr r1, [r0, #4]
; V6M-NEXT:    mov r0, r2
; V6M-NEXT:    mov r2, r4
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    mov r2, r4
; V6M-NEXT:    bl __aeabi_llsr
; V6M-NEXT:    pop {r4, pc}
  %val = load i64, ptr %w
  %numhighbits = sub i64 64, %numlowbits
  %highbitscleared = shl i64 %val, %numhighbits
  %masked = lshr i64 %highbitscleared, %numhighbits
  ret i64 %masked
}

define i64 @bzhi64_d3_load_indexzext(ptr %w, i8 %numlowbits) nounwind {
; V7M-LABEL: bzhi64_d3_load_indexzext:
; V7M:       @ %bb.0:
; V7M-NEXT:    rsb.w r1, r1, #64
; V7M-NEXT:    ldrd r0, r2, [r0]
; V7M-NEXT:    uxtb r1, r1
; V7M-NEXT:    rsb.w r3, r1, #32
; V7M-NEXT:    lsl.w r12, r2, r1
; V7M-NEXT:    lsr.w r2, r0, r3
; V7M-NEXT:    orr.w r2, r2, r12
; V7M-NEXT:    subs.w r12, r1, #32
; V7M-NEXT:    it pl
; V7M-NEXT:    lslpl.w r2, r0, r12
; V7M-NEXT:    lsl.w r0, r0, r1
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r0, #0
; V7M-NEXT:    lsl.w r3, r2, r3
; V7M-NEXT:    lsr.w r0, r0, r1
; V7M-NEXT:    lsr.w r1, r2, r1
; V7M-NEXT:    orr.w r0, r0, r3
; V7M-NEXT:    it pl
; V7M-NEXT:    lsrpl.w r0, r2, r12
; V7M-NEXT:    it pl
; V7M-NEXT:    movpl r1, #0
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_d3_load_indexzext:
; V7A:       @ %bb.0:
; V7A-NEXT:    .save {r5, lr}
; V7A-NEXT:    push {r5, lr}
; V7A-NEXT:    rsb r1, r1, #64
; V7A-NEXT:    ldm r0, {r0, r5}
; V7A-NEXT:    uxtb r2, r1
; V7A-NEXT:    rsb r12, r2, #32
; V7A-NEXT:    lsr r3, r0, r12
; V7A-NEXT:    orr r3, r3, r5, lsl r2
; V7A-NEXT:    mvn r5, #31
; V7A-NEXT:    uxtab r1, r5, r1
; V7A-NEXT:    cmp r1, #0
; V7A-NEXT:    lslpl r3, r0, r1
; V7A-NEXT:    lsl r0, r0, r2
; V7A-NEXT:    movwpl r0, #0
; V7A-NEXT:    lsr r0, r0, r2
; V7A-NEXT:    orr r0, r0, r3, lsl r12
; V7A-NEXT:    lsrpl r0, r3, r1
; V7A-NEXT:    lsr r1, r3, r2
; V7A-NEXT:    movwpl r1, #0
; V7A-NEXT:    pop {r5, pc}
;
; V7A-T-LABEL: bzhi64_d3_load_indexzext:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    .save {r4, lr}
; V7A-T-NEXT:    push {r4, lr}
; V7A-T-NEXT:    rsb.w r4, r1, #64
; V7A-T-NEXT:    ldrd r0, r2, [r0]
; V7A-T-NEXT:    mvn r1, #31
; V7A-T-NEXT:    uxtb r3, r4
; V7A-T-NEXT:    rsb.w lr, r3, #32
; V7A-T-NEXT:    lsl.w r12, r2, r3
; V7A-T-NEXT:    uxtab r1, r1, r4
; V7A-T-NEXT:    lsr.w r2, r0, lr
; V7A-T-NEXT:    cmp r1, #0
; V7A-T-NEXT:    orr.w r2, r2, r12
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lslpl.w r2, r0, r1
; V7A-T-NEXT:    lsl.w r0, r0, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r0, #0
; V7A-T-NEXT:    lsl.w r4, r2, lr
; V7A-T-NEXT:    lsr.w r0, r0, r3
; V7A-T-NEXT:    orr.w r0, r0, r4
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    lsrpl.w r0, r2, r1
; V7A-T-NEXT:    lsr.w r1, r2, r3
; V7A-T-NEXT:    it pl
; V7A-T-NEXT:    movpl r1, #0
; V7A-T-NEXT:    pop {r4, pc}
;
; V6M-LABEL: bzhi64_d3_load_indexzext:
; V6M:       @ %bb.0:
; V6M-NEXT:    .save {r4, lr}
; V6M-NEXT:    push {r4, lr}
; V6M-NEXT:    movs r2, #64
; V6M-NEXT:    subs r1, r2, r1
; V6M-NEXT:    uxtb r4, r1
; V6M-NEXT:    ldr r2, [r0]
; V6M-NEXT:    ldr r1, [r0, #4]
; V6M-NEXT:    mov r0, r2
; V6M-NEXT:    mov r2, r4
; V6M-NEXT:    bl __aeabi_llsl
; V6M-NEXT:    mov r2, r4
; V6M-NEXT:    bl __aeabi_llsr
; V6M-NEXT:    pop {r4, pc}
  %val = load i64, ptr %w
  %numhighbits = sub i8 64, %numlowbits
  %sh_prom = zext i8 %numhighbits to i64
  %highbitscleared = shl i64 %val, %sh_prom
  %masked = lshr i64 %highbitscleared, %sh_prom
  ret i64 %masked
}

; ---------------------------------------------------------------------------- ;
; Constant mask
; ---------------------------------------------------------------------------- ;

; 32-bit

define i32 @bzhi32_constant_mask32(i32 %val) nounwind {
; V7M-LABEL: bzhi32_constant_mask32:
; V7M:       @ %bb.0:
; V7M-NEXT:    bic r0, r0, #-2147483648
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_constant_mask32:
; V7A:       @ %bb.0:
; V7A-NEXT:    bic r0, r0, #-2147483648
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_constant_mask32:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    bic r0, r0, #-2147483648
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_constant_mask32:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r1, #1
; V6M-NEXT:    lsls r1, r1, #31
; V6M-NEXT:    bics r0, r1
; V6M-NEXT:    bx lr
  %masked = and i32 %val, 2147483647
  ret i32 %masked
}

define i32 @bzhi32_constant_mask32_load(ptr %val) nounwind {
; V7M-LABEL: bzhi32_constant_mask32_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    bic r0, r0, #-2147483648
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_constant_mask32_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    bic r0, r0, #-2147483648
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_constant_mask32_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    bic r0, r0, #-2147483648
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_constant_mask32_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r1, #1
; V6M-NEXT:    lsls r1, r1, #31
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    bics r0, r1
; V6M-NEXT:    bx lr
  %val1 = load i32, ptr %val
  %masked = and i32 %val1, 2147483647
  ret i32 %masked
}

define i32 @bzhi32_constant_mask16(i32 %val) nounwind {
; V7M-LABEL: bzhi32_constant_mask16:
; V7M:       @ %bb.0:
; V7M-NEXT:    bfc r0, #15, #17
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_constant_mask16:
; V7A:       @ %bb.0:
; V7A-NEXT:    bfc r0, #15, #17
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_constant_mask16:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    bfc r0, #15, #17
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_constant_mask16:
; V6M:       @ %bb.0:
; V6M-NEXT:    ldr r1, .LCPI41_0
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    bx lr
; V6M-NEXT:    .p2align 2
; V6M-NEXT:  @ %bb.1:
; V6M-NEXT:  .LCPI41_0:
; V6M-NEXT:    .long 32767 @ 0x7fff
  %masked = and i32 %val, 32767
  ret i32 %masked
}

define i32 @bzhi32_constant_mask16_load(ptr %val) nounwind {
; V7M-LABEL: bzhi32_constant_mask16_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    bfc r0, #15, #17
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_constant_mask16_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    bfc r0, #15, #17
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_constant_mask16_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    bfc r0, #15, #17
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_constant_mask16_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    ldr r1, [r0]
; V6M-NEXT:    ldr r0, .LCPI42_0
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    bx lr
; V6M-NEXT:    .p2align 2
; V6M-NEXT:  @ %bb.1:
; V6M-NEXT:  .LCPI42_0:
; V6M-NEXT:    .long 32767 @ 0x7fff
  %val1 = load i32, ptr %val
  %masked = and i32 %val1, 32767
  ret i32 %masked
}

define i32 @bzhi32_constant_mask8(i32 %val) nounwind {
; V7M-LABEL: bzhi32_constant_mask8:
; V7M:       @ %bb.0:
; V7M-NEXT:    and r0, r0, #127
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_constant_mask8:
; V7A:       @ %bb.0:
; V7A-NEXT:    and r0, r0, #127
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_constant_mask8:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    and r0, r0, #127
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_constant_mask8:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r1, #127
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    bx lr
  %masked = and i32 %val, 127
  ret i32 %masked
}

define i32 @bzhi32_constant_mask8_load(ptr %val) nounwind {
; V7M-LABEL: bzhi32_constant_mask8_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    and r0, r0, #127
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi32_constant_mask8_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    and r0, r0, #127
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi32_constant_mask8_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    and r0, r0, #127
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi32_constant_mask8_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    ldr r1, [r0]
; V6M-NEXT:    movs r0, #127
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    bx lr
  %val1 = load i32, ptr %val
  %masked = and i32 %val1, 127
  ret i32 %masked
}

; 64-bit

define i64 @bzhi64_constant_mask64(i64 %val) nounwind {
; V7M-LABEL: bzhi64_constant_mask64:
; V7M:       @ %bb.0:
; V7M-NEXT:    bic r1, r1, #-1073741824
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_constant_mask64:
; V7A:       @ %bb.0:
; V7A-NEXT:    bic r1, r1, #-1073741824
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_constant_mask64:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    bic r1, r1, #-1073741824
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_constant_mask64:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r2, #3
; V6M-NEXT:    lsls r2, r2, #30
; V6M-NEXT:    bics r1, r2
; V6M-NEXT:    bx lr
  %masked = and i64 %val, 4611686018427387903
  ret i64 %masked
}

define i64 @bzhi64_constant_mask64_load(ptr %val) nounwind {
; V7M-LABEL: bzhi64_constant_mask64_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldrd r0, r1, [r0]
; V7M-NEXT:    bic r1, r1, #-1073741824
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_constant_mask64_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldrd r0, r1, [r0]
; V7A-NEXT:    bic r1, r1, #-1073741824
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_constant_mask64_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldrd r0, r1, [r0]
; V7A-T-NEXT:    bic r1, r1, #-1073741824
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_constant_mask64_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r1, #3
; V6M-NEXT:    lsls r3, r1, #30
; V6M-NEXT:    ldr r2, [r0]
; V6M-NEXT:    ldr r1, [r0, #4]
; V6M-NEXT:    bics r1, r3
; V6M-NEXT:    mov r0, r2
; V6M-NEXT:    bx lr
  %val1 = load i64, ptr %val
  %masked = and i64 %val1, 4611686018427387903
  ret i64 %masked
}

define i64 @bzhi64_constant_mask32(i64 %val) nounwind {
; V7M-LABEL: bzhi64_constant_mask32:
; V7M:       @ %bb.0:
; V7M-NEXT:    bic r0, r0, #-2147483648
; V7M-NEXT:    movs r1, #0
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_constant_mask32:
; V7A:       @ %bb.0:
; V7A-NEXT:    bic r0, r0, #-2147483648
; V7A-NEXT:    mov r1, #0
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_constant_mask32:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    bic r0, r0, #-2147483648
; V7A-T-NEXT:    movs r1, #0
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_constant_mask32:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r1, #1
; V6M-NEXT:    lsls r1, r1, #31
; V6M-NEXT:    bics r0, r1
; V6M-NEXT:    movs r1, #0
; V6M-NEXT:    bx lr
  %masked = and i64 %val, 2147483647
  ret i64 %masked
}

define i64 @bzhi64_constant_mask32_load(ptr %val) nounwind {
; V7M-LABEL: bzhi64_constant_mask32_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    movs r1, #0
; V7M-NEXT:    bic r0, r0, #-2147483648
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_constant_mask32_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    mov r1, #0
; V7A-NEXT:    bic r0, r0, #-2147483648
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_constant_mask32_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    movs r1, #0
; V7A-T-NEXT:    bic r0, r0, #-2147483648
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_constant_mask32_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r1, #1
; V6M-NEXT:    lsls r1, r1, #31
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    bics r0, r1
; V6M-NEXT:    movs r1, #0
; V6M-NEXT:    bx lr
  %val1 = load i64, ptr %val
  %masked = and i64 %val1, 2147483647
  ret i64 %masked
}

define i64 @bzhi64_constant_mask16(i64 %val) nounwind {
; V7M-LABEL: bzhi64_constant_mask16:
; V7M:       @ %bb.0:
; V7M-NEXT:    bfc r0, #15, #17
; V7M-NEXT:    movs r1, #0
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_constant_mask16:
; V7A:       @ %bb.0:
; V7A-NEXT:    bfc r0, #15, #17
; V7A-NEXT:    mov r1, #0
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_constant_mask16:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    bfc r0, #15, #17
; V7A-T-NEXT:    movs r1, #0
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_constant_mask16:
; V6M:       @ %bb.0:
; V6M-NEXT:    ldr r1, .LCPI49_0
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    movs r1, #0
; V6M-NEXT:    bx lr
; V6M-NEXT:    .p2align 2
; V6M-NEXT:  @ %bb.1:
; V6M-NEXT:  .LCPI49_0:
; V6M-NEXT:    .long 32767 @ 0x7fff
  %masked = and i64 %val, 32767
  ret i64 %masked
}

define i64 @bzhi64_constant_mask16_load(ptr %val) nounwind {
; V7M-LABEL: bzhi64_constant_mask16_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    movs r1, #0
; V7M-NEXT:    bfc r0, #15, #17
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_constant_mask16_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    mov r1, #0
; V7A-NEXT:    bfc r0, #15, #17
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_constant_mask16_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    movs r1, #0
; V7A-T-NEXT:    bfc r0, #15, #17
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_constant_mask16_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    ldr r1, [r0]
; V6M-NEXT:    ldr r0, .LCPI50_0
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    movs r1, #0
; V6M-NEXT:    bx lr
; V6M-NEXT:    .p2align 2
; V6M-NEXT:  @ %bb.1:
; V6M-NEXT:  .LCPI50_0:
; V6M-NEXT:    .long 32767 @ 0x7fff
  %val1 = load i64, ptr %val
  %masked = and i64 %val1, 32767
  ret i64 %masked
}

define i64 @bzhi64_constant_mask8(i64 %val) nounwind {
; V7M-LABEL: bzhi64_constant_mask8:
; V7M:       @ %bb.0:
; V7M-NEXT:    and r0, r0, #127
; V7M-NEXT:    movs r1, #0
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_constant_mask8:
; V7A:       @ %bb.0:
; V7A-NEXT:    and r0, r0, #127
; V7A-NEXT:    mov r1, #0
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_constant_mask8:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    and r0, r0, #127
; V7A-T-NEXT:    movs r1, #0
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_constant_mask8:
; V6M:       @ %bb.0:
; V6M-NEXT:    movs r1, #127
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    movs r1, #0
; V6M-NEXT:    bx lr
  %masked = and i64 %val, 127
  ret i64 %masked
}

define i64 @bzhi64_constant_mask8_load(ptr %val) nounwind {
; V7M-LABEL: bzhi64_constant_mask8_load:
; V7M:       @ %bb.0:
; V7M-NEXT:    ldr r0, [r0]
; V7M-NEXT:    movs r1, #0
; V7M-NEXT:    and r0, r0, #127
; V7M-NEXT:    bx lr
;
; V7A-LABEL: bzhi64_constant_mask8_load:
; V7A:       @ %bb.0:
; V7A-NEXT:    ldr r0, [r0]
; V7A-NEXT:    mov r1, #0
; V7A-NEXT:    and r0, r0, #127
; V7A-NEXT:    bx lr
;
; V7A-T-LABEL: bzhi64_constant_mask8_load:
; V7A-T:       @ %bb.0:
; V7A-T-NEXT:    ldr r0, [r0]
; V7A-T-NEXT:    movs r1, #0
; V7A-T-NEXT:    and r0, r0, #127
; V7A-T-NEXT:    bx lr
;
; V6M-LABEL: bzhi64_constant_mask8_load:
; V6M:       @ %bb.0:
; V6M-NEXT:    ldr r1, [r0]
; V6M-NEXT:    movs r0, #127
; V6M-NEXT:    ands r0, r1
; V6M-NEXT:    movs r1, #0
; V6M-NEXT:    bx lr
  %val1 = load i64, ptr %val
  %masked = and i64 %val1, 127
  ret i64 %masked
}