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LLVM 3.5
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 14:32:10 +0900
parents 95c75e76d11b
children 54457678186b
line wrap: on
line source

; RUN: llc -march=x86-64 < %s | FileCheck %s
@sc8 = external global i8

define void @atomic_maxmin_i8() {
; CHECK: atomic_maxmin_i8
  %1 = atomicrmw max  i8* @sc8, i8 5 acquire
; CHECK: [[LABEL1:\.?LBB[0-9]+_[0-9]+]]:
; CHECK: cmpb
; CHECK: cmovl
; CHECK: lock
; CHECK-NEXT: cmpxchgb
; CHECK: jne [[LABEL1]]
  %2 = atomicrmw min  i8* @sc8, i8 6 acquire
; CHECK: [[LABEL3:\.?LBB[0-9]+_[0-9]+]]:
; CHECK: cmpb
; CHECK: cmovg
; CHECK: lock
; CHECK-NEXT: cmpxchgb
; CHECK: jne [[LABEL3]]
  %3 = atomicrmw umax i8* @sc8, i8 7 acquire
; CHECK: [[LABEL5:\.?LBB[0-9]+_[0-9]+]]:
; CHECK: cmpb
; CHECK: cmovb
; CHECK: lock
; CHECK-NEXT: cmpxchgb
; CHECK: jne [[LABEL5]]
  %4 = atomicrmw umin i8* @sc8, i8 8 acquire
; CHECK: [[LABEL7:\.?LBB[0-9]+_[0-9]+]]:
; CHECK: cmpb
; CHECK: cmova
; CHECK: lock
; CHECK-NEXT: cmpxchgb
; CHECK: jne [[LABEL7]]
  ret void
}