mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 00:12:50 +01:00
42 lines
1.2 KiB
LLVM
42 lines
1.2 KiB
LLVM
|
; RUN: opt -basicaa -memcpyopt -S < %s | FileCheck %s
|
||
|
|
|
||
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
|
||
|
|
target triple = "x86_64-apple-macosx10.7.0"
|
||
|
|
|
||
|
|
@x = global i32 0
|
||
|
|
|
||
|
|
declare void @otherf(i32*)
|
||
|
|
|
||
|
|
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
|
||
|
|
|
||
|
|
; memcpyopt should not touch atomic ops
|
||
|
|
define void @test1() nounwind uwtable ssp {
|
||
|
|
; CHECK: test1
|
||
|
|
; CHECK: store atomic
|
||
|
|
%x = alloca [101 x i32], align 16
|
||
|
|
%bc = bitcast [101 x i32]* %x to i8*
|
||
|
|
call void @llvm.memset.p0i8.i64(i8* %bc, i8 0, i64 400, i32 16, i1 false)
|
||
|
|
%gep1 = getelementptr inbounds [101 x i32]* %x, i32 0, i32 100
|
||
|
|
store atomic i32 0, i32* %gep1 unordered, align 4
|
||
|
|
%gep2 = getelementptr inbounds [101 x i32]* %x, i32 0, i32 0
|
||
|
|
call void @otherf(i32* %gep2)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; memcpyopt across unordered store
|
||
|
|
define void @test2() nounwind uwtable ssp {
|
||
|
|
; CHECK: test2
|
||
|
|
; CHECK: call
|
||
|
|
; CHECK-NEXT: store atomic
|
||
|
|
; CHECK-NEXT: call
|
||
|
|
%old = alloca i32
|
||
|
|
%new = alloca i32
|
||
|
|
call void @otherf(i32* nocapture %old)
|
||
|
|
store atomic i32 0, i32* @x unordered, align 4
|
||
|
|
%v = load i32* %old
|
||
|
|
store i32 %v, i32* %new
|
||
|
|
call void @otherf(i32* nocapture %new)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|