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| author | Chris Lattner <sabre@nondot.org> | 2007-05-30 06:10:46 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-05-30 06:10:46 +0000 |
| commit | 661c2ce9c53dc6e89cee045fd102518dfaa262ff (patch) | |
| tree | 4b0ec1b82a688d4b411543041b4b60033a2c6a0e | |
| parent | ad5ace40389b1996ccc1c4b804c528e2a0841c60 (diff) | |
Testcase for PR1421
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37357 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll b/test/Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll new file mode 100644 index 0000000000..dc1198ead8 --- /dev/null +++ b/test/Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll @@ -0,0 +1,23 @@ +; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | grep memcpy +; PR1421 + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64" +target triple = "i686-apple-darwin8" + %struct.LongestMember = type { i8, i32 } + %struct.MyString = type { i32 } + %struct.UnionType = type { %struct.LongestMember } + +define void @_Z4testP9UnionTypePS0_(%struct.UnionType* %p, %struct.UnionType** %pointerToUnion) { +entry: + %tmp = alloca %struct.UnionType, align 8 ; <%struct.UnionType*> [#uses=2] + %tmp2 = getelementptr %struct.UnionType* %tmp, i32 0, i32 0, i32 0 ; <i8*> [#uses=1] + %tmp13 = getelementptr %struct.UnionType* %p, i32 0, i32 0, i32 0 ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* %tmp2, i8* %tmp13, i32 8, i32 0 ) + %tmp5 = load %struct.UnionType** %pointerToUnion ; <%struct.UnionType*> [#uses=1] + %tmp56 = getelementptr %struct.UnionType* %tmp5, i32 0, i32 0, i32 0 ; <i8*> [#uses=1] + %tmp7 = getelementptr %struct.UnionType* %tmp, i32 0, i32 0, i32 0 ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* %tmp56, i8* %tmp7, i32 8, i32 0 ) + ret void +} + +declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) |