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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2011-10-05 20:05:13 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2011-10-05 20:05:13 +0000 |
| commit | 11f1a8335e207971f66eb60609e16b8719be5450 (patch) | |
| tree | d9e3c481fd4599da0d3a9c39accba9b51ce5599a /test/Transforms/TailCallElim | |
| parent | 30c1ff234d30567fc20d6c41d8fd9c3aacbbf9ca (diff) | |
| download | external_llvm-11f1a8335e207971f66eb60609e16b8719be5450.zip external_llvm-11f1a8335e207971f66eb60609e16b8719be5450.tar.gz external_llvm-11f1a8335e207971f66eb60609e16b8719be5450.tar.bz2 | |
Check for the returns_twice attribute in callsFunctionThatReturnsTwice. This
fixes PR11038, but there are still some cleanups to be done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141204 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/TailCallElim')
| -rw-r--r-- | test/Transforms/TailCallElim/setjmp.ll | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/test/Transforms/TailCallElim/setjmp.ll b/test/Transforms/TailCallElim/setjmp.ll index 35bb75d..7ef9cb3 100644 --- a/test/Transforms/TailCallElim/setjmp.ll +++ b/test/Transforms/TailCallElim/setjmp.ll @@ -1,16 +1,29 @@ ; RUN: opt < %s -tailcallelim -S | FileCheck %s -; Test that we don't tail call in a functions that calls setjmp. +; Test that we don't tail call in a functions that calls returns_twice +; functions. +declare void @bar() + +; CHECK: foo1 ; CHECK-NOT: tail call void @bar() -define void @foo(i32* %x) { +define void @foo1(i32* %x) { bb: %tmp75 = tail call i32 @setjmp(i32* %x) call void @bar() ret void } -declare i32 @setjmp(i32*) returns_twice +declare i32 @setjmp(i32*) -declare void @bar() +; CHECK: foo2 +; CHECK-NOT: tail call void @bar() + +define void @foo2(i32* %x) { +bb: + %tmp75 = tail call i32 @zed2(i32* %x) + call void @bar() + ret void +} +declare i32 @zed2(i32*) returns_twice |