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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 0000000000000..095e6a1036218 --- /dev/null +++ b/test/CodeGen/X86/2009-06-15-not-a-tail-call.ll @@ -0,0 +1,14 @@ +; RUN: llvm-as < %s | llc -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) |