diff options
Diffstat (limited to 'test/Transforms/MemCpyOpt/form-memset.ll')
| -rw-r--r-- | test/Transforms/MemCpyOpt/form-memset.ll | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/test/Transforms/MemCpyOpt/form-memset.ll b/test/Transforms/MemCpyOpt/form-memset.ll index 1ac97e9..8832f89 100644 --- a/test/Transforms/MemCpyOpt/form-memset.ll +++ b/test/Transforms/MemCpyOpt/form-memset.ll @@ -57,8 +57,8 @@ entry: declare i32 @bar(...) +%struct.MV = type { i16, i16 } - %struct.MV = type { i16, i16 } define void @test2() nounwind { entry: @@ -220,3 +220,31 @@ entry: ; CHECK: call void @llvm.memset.p0i8.i64(i8* %2, i8 0, i64 24, i32 1, i1 false) } +; More aggressive heuristic +; rdar://9892684 +define void @test7(i32* nocapture %c) nounwind optsize { + store i32 -1, i32* %c, align 4 + %1 = getelementptr inbounds i32* %c, i32 1 + store i32 -1, i32* %1, align 4 + %2 = getelementptr inbounds i32* %c, i32 2 + store i32 -1, i32* %2, align 4 + %3 = getelementptr inbounds i32* %c, i32 3 + store i32 -1, i32* %3, align 4 + %4 = getelementptr inbounds i32* %c, i32 4 + store i32 -1, i32* %4, align 4 +; CHECK: @test7 +; CHECK: call void @llvm.memset.p0i8.i64(i8* %5, i8 -1, i64 20, i32 4, i1 false) + ret void +} + +%struct.test8 = type { [4 x i32] } + +define void @test8() { +entry: + %memtmp = alloca %struct.test8, align 16 + %0 = bitcast %struct.test8* %memtmp to <4 x i32>* + store <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, <4 x i32>* %0, align 16 + ret void +; CHECK: @test8 +; CHECK: store <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, <4 x i32>* %0, align 16 +} |
