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| author | Reid Kleckner <reid@kleckner.net> | 2014-04-21 20:48:47 +0000 |
|---|---|---|
| committer | Reid Kleckner <reid@kleckner.net> | 2014-04-21 20:48:47 +0000 |
| commit | 0df9abbd63a6cb3767d3ddf3b6c2f8ea8a4f6f7e (patch) | |
| tree | 4aa9b671f14fb7940eded1c5db0ad6c20e7fa92e /test/Transforms/TailCallElim | |
| parent | 290ce1944c02ec81787b80dc2a41119de5d7e412 (diff) | |
| download | llvm-0df9abbd63a6cb3767d3ddf3b6c2f8ea8a4f6f7e.tar.gz llvm-0df9abbd63a6cb3767d3ddf3b6c2f8ea8a4f6f7e.tar.bz2 llvm-0df9abbd63a6cb3767d3ddf3b6c2f8ea8a4f6f7e.tar.xz | |
Fix PR7272 in -tailcallelim instead of the inliner
The -tailcallelim pass should be checking if byval or inalloca args can
be captured before marking calls as tail calls. This was the real root
cause of PR7272.
With a better fix in place, revert the inliner change from r105255. The
test case it introduced still passes and has been moved to
test/Transforms/Inline/byval-tail-call.ll.
Reviewers: chandlerc
Differential Revision: http://reviews.llvm.org/D3403
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206789 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/TailCallElim')
| -rw-r--r-- | test/Transforms/TailCallElim/basic.ll | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/test/Transforms/TailCallElim/basic.ll b/test/Transforms/TailCallElim/basic.ll index 35420ab08c..5582ee33ed 100644 --- a/test/Transforms/TailCallElim/basic.ll +++ b/test/Transforms/TailCallElim/basic.ll @@ -143,3 +143,11 @@ cond_false: call void @noarg() ret i32* null } + +; Don't tail call if a byval arg is captured. +define void @test9(i32* byval %a) { +; CHECK-LABEL: define void @test9( +; CHECK: {{^ *}}call void @use( + call void @use(i32* %a) + ret void +} |