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llvm-mirror/test/Transforms/LowerAtomic/atomic-load.ll
Peter Collingbourne 10c4f9d6bd Add an atomic lowering pass
llvm-svn: 110113
2010-08-03 16:19:16 +00:00

41 lines
950 B
LLVM

; RUN: opt < %s -loweratomic -S | FileCheck %s
declare i8 @llvm.atomic.load.add.i8.p0i8(i8* %ptr, i8 %delta)
declare i8 @llvm.atomic.load.nand.i8.p0i8(i8* %ptr, i8 %delta)
declare i8 @llvm.atomic.load.min.i8.p0i8(i8* %ptr, i8 %delta)
define i8 @add() {
; CHECK: @add
%i = alloca i8
%j = call i8 @llvm.atomic.load.add.i8.p0i8(i8* %i, i8 42)
; CHECK: [[INST:%[a-z0-9]+]] = load
; CHECK-NEXT: add
; CHECK-NEXT: store
ret i8 %j
; CHECK: ret i8 [[INST]]
}
define i8 @nand() {
; CHECK: @nand
%i = alloca i8
%j = call i8 @llvm.atomic.load.nand.i8.p0i8(i8* %i, i8 42)
; CHECK: [[INST:%[a-z0-9]+]] = load
; CHECK-NEXT: and
; CHECK-NEXT: xor
; CHECK-NEXT: store
ret i8 %j
; CHECK: ret i8 [[INST]]
}
define i8 @min() {
; CHECK: @min
%i = alloca i8
%j = call i8 @llvm.atomic.load.min.i8.p0i8(i8* %i, i8 42)
; CHECK: [[INST:%[a-z0-9]+]] = load
; CHECK-NEXT: icmp
; CHECK-NEXT: select
; CHECK-NEXT: store
ret i8 %j
; CHECK: ret i8 [[INST]]
}