llvm/test/CodeGen/ARM/cmp-select-sign.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=armv7a < %s | FileCheck %s --check-prefix=ARM
; RUN: llc -mtriple=armv6m < %s | FileCheck %s --check-prefix=THUMB
; RUN: llc -mtriple=armv7m < %s | FileCheck %s --check-prefix=THUMB2
; RUN: llc -mtriple=thumbv8.1m.main < %s | FileCheck %s --check-prefix=THUMBV8

define i3 @sign_i3(i3 %a) {
; ARM-LABEL: sign_i3:
; ARM:       @ %bb.0:
; ARM-NEXT:    lsl r0, r0, #29
; ARM-NEXT:    mov r1, #1
; ARM-NEXT:    orr r0, r1, r0, asr #31
; ARM-NEXT:    bx lr
;
; THUMB-LABEL: sign_i3:
; THUMB:       @ %bb.0:
; THUMB-NEXT:    lsls r0, r0, #29
; THUMB-NEXT:    asrs r1, r0, #31
; THUMB-NEXT:    movs r0, #1
; THUMB-NEXT:    orrs r0, r1
; THUMB-NEXT:    bx lr
;
; THUMB2-LABEL: sign_i3:
; THUMB2:       @ %bb.0:
; THUMB2-NEXT:    lsls r0, r0, #29
; THUMB2-NEXT:    movs r1, #1
; THUMB2-NEXT:    orr.w r0, r1, r0, asr #31
; THUMB2-NEXT:    bx lr
;
; THUMBV8-LABEL: sign_i3:
; THUMBV8:       @ %bb.0:
; THUMBV8-NEXT:    lsls r0, r0, #29
; THUMBV8-NEXT:    movs r1, #1
; THUMBV8-NEXT:    orr.w r0, r1, r0, asr #31
; THUMBV8-NEXT:    bx lr
  %c = icmp sgt i3 %a, -1
  %res = select i1 %c, i3 1, i3 -1
  ret i3 %res
}

define i4 @sign_i4(i4 %a) {
; ARM-LABEL: sign_i4:
; ARM:       @ %bb.0:
; ARM-NEXT:    lsl r0, r0, #28
; ARM-NEXT:    mov r1, #1
; ARM-NEXT:    orr r0, r1, r0, asr #31
; ARM-NEXT:    bx lr
;
; THUMB-LABEL: sign_i4:
; THUMB:       @ %bb.0:
; THUMB-NEXT:    lsls r0, r0, #28
; THUMB-NEXT:    asrs r1, r0, #31
; THUMB-NEXT:    movs r0, #1
; THUMB-NEXT:    orrs r0, r1
; THUMB-NEXT:    bx lr
;
; THUMB2-LABEL: sign_i4:
; THUMB2:       @ %bb.0:
; THUMB2-NEXT:    lsls r0, r0, #28
; THUMB2-NEXT:    movs r1, #1
; THUMB2-NEXT:    orr.w r0, r1, r0, asr #31
; THUMB2-NEXT:    bx lr
;
; THUMBV8-LABEL: sign_i4:
; THUMBV8:       @ %bb.0:
; THUMBV8-NEXT:    lsls r0, r0, #28
; THUMBV8-NEXT:    movs r1, #1
; THUMBV8-NEXT:    orr.w r0, r1, r0, asr #31
; THUMBV8-NEXT:    bx lr
  %c = icmp sgt i4 %a, -1
  %res = select i1 %c, i4 1, i4 -1
  ret i4 %res
}

define i8 @sign_i8(i8 %a) {
; ARM-LABEL: sign_i8:
; ARM:       @ %bb.0:
; ARM-NEXT:    sxtb r0, r0
; ARM-NEXT:    mov r1, #1
; ARM-NEXT:    orr r0, r1, r0, asr #7
; ARM-NEXT:    bx lr
;
; THUMB-LABEL: sign_i8:
; THUMB:       @ %bb.0:
; THUMB-NEXT:    sxtb r0, r0
; THUMB-NEXT:    asrs r1, r0, #7
; THUMB-NEXT:    movs r0, #1
; THUMB-NEXT:    orrs r0, r1
; THUMB-NEXT:    bx lr
;
; THUMB2-LABEL: sign_i8:
; THUMB2:       @ %bb.0:
; THUMB2-NEXT:    sxtb r0, r0
; THUMB2-NEXT:    movs r1, #1
; THUMB2-NEXT:    orr.w r0, r1, r0, asr #7
; THUMB2-NEXT:    bx lr
;
; THUMBV8-LABEL: sign_i8:
; THUMBV8:       @ %bb.0:
; THUMBV8-NEXT:    sxtb r0, r0
; THUMBV8-NEXT:    movs r1, #1
; THUMBV8-NEXT:    orr.w r0, r1, r0, asr #7
; THUMBV8-NEXT:    bx lr
  %c = icmp sgt i8 %a, -1
  %res = select i1 %c, i8 1, i8 -1
  ret i8 %res
}

define i16 @sign_i16(i16 %a) {
; ARM-LABEL: sign_i16:
; ARM:       @ %bb.0:
; ARM-NEXT:    sxth r0, r0
; ARM-NEXT:    mov r1, #1
; ARM-NEXT:    orr r0, r1, r0, asr #15
; ARM-NEXT:    bx lr
;
; THUMB-LABEL: sign_i16:
; THUMB:       @ %bb.0:
; THUMB-NEXT:    sxth r0, r0
; THUMB-NEXT:    asrs r1, r0, #15
; THUMB-NEXT:    movs r0, #1
; THUMB-NEXT:    orrs r0, r1
; THUMB-NEXT:    bx lr
;
; THUMB2-LABEL: sign_i16:
; THUMB2:       @ %bb.0:
; THUMB2-NEXT:    sxth r0, r0
; THUMB2-NEXT:    movs r1, #1
; THUMB2-NEXT:    orr.w r0, r1, r0, asr #15
; THUMB2-NEXT:    bx lr
;
; THUMBV8-LABEL: sign_i16:
; THUMBV8:       @ %bb.0:
; THUMBV8-NEXT:    sxth r0, r0
; THUMBV8-NEXT:    movs r1, #1
; THUMBV8-NEXT:    orr.w r0, r1, r0, asr #15
; THUMBV8-NEXT:    bx lr
  %c = icmp sgt i16 %a, -1
  %res = select i1 %c, i16 1, i16 -1
  ret i16 %res
}

define i32 @sign_i32(i32 %a) {
; ARM-LABEL: sign_i32:
; ARM:       @ %bb.0:
; ARM-NEXT:    mov r1, #1
; ARM-NEXT:    orr r0, r1, r0, asr #31
; ARM-NEXT:    bx lr
;
; THUMB-LABEL: sign_i32:
; THUMB:       @ %bb.0:
; THUMB-NEXT:    asrs r1, r0, #31
; THUMB-NEXT:    movs r0, #1
; THUMB-NEXT:    orrs r0, r1
; THUMB-NEXT:    bx lr
;
; THUMB2-LABEL: sign_i32:
; THUMB2:       @ %bb.0:
; THUMB2-NEXT:    movs r1, #1
; THUMB2-NEXT:    orr.w r0, r1, r0, asr #31
; THUMB2-NEXT:    bx lr
;
; THUMBV8-LABEL: sign_i32:
; THUMBV8:       @ %bb.0:
; THUMBV8-NEXT:    movs r1, #1
; THUMBV8-NEXT:    orr.w r0, r1, r0, asr #31
; THUMBV8-NEXT:    bx lr
  %c = icmp sgt i32 %a, -1
  %res = select i1 %c, i32 1, i32 -1
  ret i32 %res
}