llvm/test/CodeGen/AArch64/icmp-ult-eq-fold.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple=aarch64 | FileCheck %s


define i1 @lt8_u8(i8 %0) {
; CHECK-LABEL: lt8_u8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    tst w0, #0xf8
; CHECK-NEXT:    cset w0, eq
; CHECK-NEXT:    ret
  %2 = icmp ult i8 %0, 8
  ret i1 %2
}

define i1 @lt32_u8(i8 %0) {
; CHECK-LABEL: lt32_u8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    tst w0, #0xe0
; CHECK-NEXT:    cset w0, eq
; CHECK-NEXT:    ret
  %2 = icmp ult i8 %0, 32
  ret i1 %2
}

define i1 @lt64_u8(i8 %0) {
; CHECK-LABEL: lt64_u8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    tst w0, #0xc0
; CHECK-NEXT:    cset w0, eq
; CHECK-NEXT:    ret
  %2 = icmp ult i8 %0, 64
  ret i1 %2
}

define i1 @lt8_u32(i32 %0) {
; CHECK-LABEL: lt8_u32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    cmp w0, #8
; CHECK-NEXT:    cset w0, lo
; CHECK-NEXT:    ret
  %2 = icmp ult i32 %0, 8
  ret i1 %2
}

define i1 @lt32_u32(i32 %0) {
; CHECK-LABEL: lt32_u32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    cmp w0, #32
; CHECK-NEXT:    cset w0, lo
; CHECK-NEXT:    ret
  %2 = icmp ult i32 %0, 32
  ret i1 %2
}

define i1 @lt64_u32(i32 %0) {
; CHECK-LABEL: lt64_u32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    cmp w0, #64
; CHECK-NEXT:    cset w0, lo
; CHECK-NEXT:    ret
  %2 = icmp ult i32 %0, 64
  ret i1 %2
}

define i1 @lt8_u64(i64 %0) {
; CHECK-LABEL: lt8_u64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    cmp x0, #8
; CHECK-NEXT:    cset w0, lo
; CHECK-NEXT:    ret
  %2 = icmp ult i64 %0, 8
  ret i1 %2
}

define i1 @lt32_u64(i64 %0) {
; CHECK-LABEL: lt32_u64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    cmp x0, #32
; CHECK-NEXT:    cset w0, lo
; CHECK-NEXT:    ret
  %2 = icmp ult i64 %0, 32
  ret i1 %2
}

define i1 @lt64_u64(i64 %0) {
; CHECK-LABEL: lt64_u64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    cmp x0, #64
; CHECK-NEXT:    cset w0, lo
; CHECK-NEXT:    ret
  %2 = icmp ult i64 %0, 64
  ret i1 %2
}

define i1 @lt8_u16_and_5(i8 %0) {
; CHECK-LABEL: lt8_u16_and_5:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov w8, wzr
; CHECK-NEXT:    cmp w8, #0
; CHECK-NEXT:    cset w0, eq
; CHECK-NEXT:    ret
  %2 = and i8 %0, 5
  %3 = icmp ult i8 %2, 16
  ret i1 %3
}

define i1 @lt8_u16_and_19(i8 %0) {
; CHECK-LABEL: lt8_u16_and_19:
; CHECK:       // %bb.0:
; CHECK-NEXT:    tst w0, #0x10
; CHECK-NEXT:    cset w0, eq
; CHECK-NEXT:    ret
  %2 = and i8 %0, 19
  %3 = icmp ult i8 %2, 16
  ret i1 %3
}

define i1 @lt32_u16_and_7(i32 %0) {
; CHECK-LABEL: lt32_u16_and_7:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov w8, wzr
; CHECK-NEXT:    cmp w8, #0
; CHECK-NEXT:    cset w0, eq
; CHECK-NEXT:    ret
  %2 = and i32 %0, 7
  %3 = icmp ult i32 %2, 16
  ret i1 %3
}

define i1 @lt32_u16_and_21(i32 %0) {
; CHECK-LABEL: lt32_u16_and_21:
; CHECK:       // %bb.0:
; CHECK-NEXT:    tst w0, #0x10
; CHECK-NEXT:    cset w0, eq
; CHECK-NEXT:    ret
  %2 = and i32 %0, 21
  %3 = icmp ult i32 %2, 16
  ret i1 %3
}

define i1 @lt64_u16_and_9(i64 %0) {
; CHECK-LABEL: lt64_u16_and_9:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov x8, xzr
; CHECK-NEXT:    cmp x8, #0
; CHECK-NEXT:    cset w0, eq
; CHECK-NEXT:    ret
  %2 = and i64 %0, 9
  %3 = icmp ult i64 %2, 16
  ret i1 %3
}

define i1 @lt64_u16_and_23(i64 %0) {
; CHECK-LABEL: lt64_u16_and_23:
; CHECK:       // %bb.0:
; CHECK-NEXT:    tst x0, #0x10
; CHECK-NEXT:    cset w0, eq
; CHECK-NEXT:    ret
  %2 = and i64 %0, 23
  %3 = icmp ult i64 %2, 16
  ret i1 %3
}

; negative test
define i1 @lt3_u8(i8 %0) {
; CHECK-LABEL: lt3_u8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    and w8, w0, #0xff
; CHECK-NEXT:    cmp w8, #3
; CHECK-NEXT:    cset w0, lo
; CHECK-NEXT:    ret
  %2 = icmp ult i8 %0, 3
  ret i1 %2
}

; negative test
define i1 @lt3_u32(i32 %0) {
; CHECK-LABEL: lt3_u32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    cmp w0, #3
; CHECK-NEXT:    cset w0, lo
; CHECK-NEXT:    ret
  %2 = icmp ult i32 %0, 3
  ret i1 %2
}

; negative test
define i1 @lt3_u64(i64 %0) {
; CHECK-LABEL: lt3_u64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    cmp x0, #3
; CHECK-NEXT:    cset w0, lo
; CHECK-NEXT:    ret
  %2 = icmp ult i64 %0, 3
  ret i1 %2
}

; negative test
define i32 @lt32_u16_multiple_use(i32 %0) {
; CHECK-LABEL: lt32_u16_multiple_use:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov w8, #21 // =0x15
; CHECK-NEXT:    mov w9, #10 // =0xa
; CHECK-NEXT:    and w8, w0, w8
; CHECK-NEXT:    cmp w8, #16
; CHECK-NEXT:    orr w8, w8, w9
; CHECK-NEXT:    cset w10, lo
; CHECK-NEXT:    mul w0, w8, w10
; CHECK-NEXT:    ret
  %2 = and i32 %0, 21
  %3 = icmp ult i32 %2, 16
  %4 = add i32 %2, 10
  %5 = zext i1 %3 to i32
  %6 = mul i32 %4, %5
  ret i32 %6
}