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| author | Evan Cheng <evan.cheng@apple.com> | 2010-01-31 00:59:31 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-01-31 00:59:31 +0000 |
| commit | 56a5886b20433569e5eb9c5b1ad350ef0c0e0596 (patch) | |
| tree | 8fc9464d61ba12128eebcff14f3218c2d5293792 /test/Transforms/TailCallElim | |
| parent | 3ed6f876c8c30d82dceccfdd7e3f1774a85adc7c (diff) | |
| download | external_llvm-56a5886b20433569e5eb9c5b1ad350ef0c0e0596.zip external_llvm-56a5886b20433569e5eb9c5b1ad350ef0c0e0596.tar.gz external_llvm-56a5886b20433569e5eb9c5b1ad350ef0c0e0596.tar.bz2 | |
Do not mark no-return calls tail calls. It'll screw up special calls like longjmp and it doesn't make much sense for performance reason. If my logic is faulty, please let me know.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94937 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/TailCallElim')
| -rw-r--r-- | test/Transforms/TailCallElim/no-return-calls.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/Transforms/TailCallElim/no-return-calls.ll b/test/Transforms/TailCallElim/no-return-calls.ll new file mode 100644 index 0000000..f5643ae --- /dev/null +++ b/test/Transforms/TailCallElim/no-return-calls.ll @@ -0,0 +1,12 @@ +; RUN: opt < %s -tailcallelim -S | FileCheck %s + +define void @t() nounwind ssp { +entry: +; CHECK: entry: +; CHECK: %0 = call i32 @foo() +; CHECK: ret void + %0 = call i32 @foo() nounwind noreturn + ret void +} + +declare i32 @foo() |