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| author | Chris Lattner <sabre@nondot.org> | 2007-11-27 22:14:42 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-11-27 22:14:42 +0000 |
| commit | 789db09cde5f0cb2a0a5fc175c1141c760a3e807 (patch) | |
| tree | b506c55014bf946dc42cf7ade7e04171bfc0aa35 /test/CodeGen/Generic/invalid-memcpy.ll | |
| parent | a8d700138ad17ef3d7e865d29a3dd3d85240d944 (diff) | |
| download | llvm-789db09cde5f0cb2a0a5fc175c1141c760a3e807.tar.gz llvm-789db09cde5f0cb2a0a5fc175c1141c760a3e807.tar.bz2 llvm-789db09cde5f0cb2a0a5fc175c1141c760a3e807.tar.xz | |
Fix a crash on invalid code due to memcpy lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44378 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Generic/invalid-memcpy.ll')
| -rw-r--r-- | test/CodeGen/Generic/invalid-memcpy.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/Generic/invalid-memcpy.ll b/test/CodeGen/Generic/invalid-memcpy.ll new file mode 100644 index 0000000000..e3acf0c2be --- /dev/null +++ b/test/CodeGen/Generic/invalid-memcpy.ll @@ -0,0 +1,19 @@ +; RUN: llvm-as < %s | llc + +; This testcase is invalid (the alignment specified for memcpy is +; greater than the alignment guaranteed for Qux or C.0.1173), but it +; should compile, not crash the code generator. + +@C.0.1173 = external constant [33 x i8] ; <[33 x i8]*> [#uses=1] + +define void @Bork() { +entry: + %Qux = alloca [33 x i8] ; <[33 x i8]*> [#uses=1] + %Qux1 = bitcast [33 x i8]* %Qux to i8* ; <i8*> [#uses=1] + call void @llvm.memcpy.i64( i8* %Qux1, i8* getelementptr ([33 x i8]* @C.0.1173, i32 0, i32 0), i64 33, i32 8 ) + ret void +} + +declare void @llvm.memcpy.i64(i8*, i8*, i64, i32) + + |