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| author | Dan Gohman <gohman@apple.com> | 2009-11-14 02:06:30 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-11-14 02:06:30 +0000 |
| commit | ed9bab3b4da0a5c5581fdd477c19c02420dd2fc7 (patch) | |
| tree | 0960e1ea7081395a015e3ef090e9cef1651d48ab /test/CodeGen | |
| parent | 0cd22dd7383111192571884eb941ac2ccb668025 (diff) | |
Enable the tail call optimization when the caller returns undef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88737 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/X86/tailcall1.ll | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/test/CodeGen/X86/tailcall1.ll b/test/CodeGen/X86/tailcall1.ll index 215d00946d..4923df26b4 100644 --- a/test/CodeGen/X86/tailcall1.ll +++ b/test/CodeGen/X86/tailcall1.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -march=x86 -tailcallopt | grep TAILCALL | count 3 +; RUN: llc < %s -march=x86 -tailcallopt | grep TAILCALL | count 4 define fastcc i32 @tailcallee(i32 %a1, i32 %a2, i32 %a3, i32 %a4) { entry: ret i32 %a3 @@ -23,3 +23,10 @@ define fastcc i8* @alias_caller() nounwind { %p = tail call fastcc noalias i8* @noalias_callee() ret i8* %p } + +declare fastcc i32 @i32_callee() + +define fastcc i32 @ret_undef() nounwind { + %p = tail call fastcc i32 @i32_callee() + ret i32 undef +} |