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| author | Dale Johannesen <dalej@apple.com> | 2010-10-25 22:17:05 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2010-10-25 22:17:05 +0000 |
| commit | ec57ac1c3c666d8fd2661c48cd7da89adfa64cdf (patch) | |
| tree | 0667e2269e351a8a7507ebc86b08c495f5ec69e2 /llvm/lib | |
| parent | d831356635409f903168a29de0a0987e3b204717 (diff) | |
| download | bcm5719-llvm-ec57ac1c3c666d8fd2661c48cd7da89adfa64cdf.tar.gz bcm5719-llvm-ec57ac1c3c666d8fd2661c48cd7da89adfa64cdf.zip | |
An stdcall function calling a non-stdcall function
cannot use tailcall. PR 8461.
llvm-svn: 117322
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index ca812c84bd6..f698ceceac5 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -2532,6 +2532,11 @@ X86TargetLowering::IsEligibleForTailCallOptimization(SDValue Callee, } } + // An stdcall caller is expected to clean up its arguments; the callee + // isn't going to do that. PR 8461. + if (!CCMatch && CallerCC==CallingConv::X86_StdCall) + return false; + return true; } |
