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| author | Shih-wei Liao <sliao@google.com> | 2010-02-10 11:10:31 -0800 |
|---|---|---|
| committer | Shih-wei Liao <sliao@google.com> | 2010-02-10 11:10:31 -0800 |
| commit | e264f62ca09a8f65c87a46d562a4d0f9ec5d457e (patch) | |
| tree | 59e3d57ef656cef79afa708ae0a3daf25cd91fcf /test/CodeGen/X86/2009-06-15-not-a-tail-call.ll | |
| download | external_llvm-e264f62ca09a8f65c87a46d562a4d0f9ec5d457e.zip external_llvm-e264f62ca09a8f65c87a46d562a4d0f9ec5d457e.tar.gz external_llvm-e264f62ca09a8f65c87a46d562a4d0f9ec5d457e.tar.bz2 | |
Check in LLVM r95781.
Diffstat (limited to 'test/CodeGen/X86/2009-06-15-not-a-tail-call.ll')
| -rw-r--r-- | test/CodeGen/X86/2009-06-15-not-a-tail-call.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2009-06-15-not-a-tail-call.ll b/test/CodeGen/X86/2009-06-15-not-a-tail-call.ll new file mode 100644 index 0000000..feb5780 --- /dev/null +++ b/test/CodeGen/X86/2009-06-15-not-a-tail-call.ll @@ -0,0 +1,14 @@ +; RUN: llc < %s -march=x86 -tailcallopt | not grep TAILCALL + +; Bug 4396. This tail call can NOT be optimized. + +declare fastcc i8* @_D3gcx2GC12mallocNoSyncMFmkZPv() nounwind + +define fastcc i8* @_D3gcx2GC12callocNoSyncMFmkZPv() nounwind { +entry: + %tmp6 = tail call fastcc i8* @_D3gcx2GC12mallocNoSyncMFmkZPv() ; <i8*> [#uses=2] + %tmp9 = tail call i8* @memset(i8* %tmp6, i32 0, i64 2) ; <i8*> [#uses=0] + ret i8* %tmp6 +} + +declare i8* @memset(i8*, i32, i64) |