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Diffstat (limited to 'test/Transforms/GlobalOpt/memset.ll')
| -rw-r--r-- | test/Transforms/GlobalOpt/memset.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Transforms/GlobalOpt/memset.ll b/test/Transforms/GlobalOpt/memset.ll new file mode 100644 index 0000000000000..0ee851f40aefe --- /dev/null +++ b/test/Transforms/GlobalOpt/memset.ll @@ -0,0 +1,21 @@ +; both globals are write only, delete them. + +; RUN: llvm-as < %s | opt -globalopt | llvm-dis | \ +; RUN: not grep internal + +@G0 = internal global [58 x i8] c"asdlfkajsdlfkajsd;lfkajds;lfkjasd;flkajsd;lkfja;sdlkfjasd\00" ; <[58 x i8]*> [#uses=1] +@G1 = internal global [4 x i32] [ i32 1, i32 2, i32 3, i32 4 ] ; <[4 x i32]*> [#uses=1] + +declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) + +declare void @llvm.memset.i32(i8*, i8, i32, i32) + +define void @foo() { + %Blah = alloca [58 x i8] ; <[58 x i8]*> [#uses=1] + %tmp3 = bitcast [58 x i8]* %Blah to i8* ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* bitcast ([4 x i32]* @G1 to i8*), i8* %tmp3, i32 16, i32 1 ) + call void @llvm.memset.i32( i8* getelementptr ([58 x i8]* @G0, i32 0, i32 0), i8 17, i32 58, i32 1 ) + ret void +} + + |