forked from OSchip/llvm-project
32 lines
781 B
LLVM
32 lines
781 B
LLVM
; 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: jg
|
|
; CHECK: lock cmpxchgb
|
|
; CHECK: jne [[LABEL1]]
|
|
%2 = atomicrmw min i8* @sc8, i8 6 acquire
|
|
; CHECK: [[LABEL3:\.?LBB[0-9]+_[0-9]+]]:
|
|
; CHECK: cmpb
|
|
; CHECK: jl
|
|
; CHECK: lock cmpxchgb
|
|
; CHECK: jne [[LABEL3]]
|
|
%3 = atomicrmw umax i8* @sc8, i8 7 acquire
|
|
; CHECK: [[LABEL5:\.?LBB[0-9]+_[0-9]+]]:
|
|
; CHECK: cmpb
|
|
; CHECK: ja
|
|
; CHECK: lock cmpxchgb
|
|
; CHECK: jne [[LABEL5]]
|
|
%4 = atomicrmw umin i8* @sc8, i8 8 acquire
|
|
; CHECK: [[LABEL7:\.?LBB[0-9]+_[0-9]+]]:
|
|
; CHECK: cmpb
|
|
; CHECK: jb
|
|
; CHECK: lock cmpxchgb
|
|
; CHECK: jne [[LABEL7]]
|
|
ret void
|
|
}
|