Reid Kleckner
48ea98d1d2
Don't insert lifetime.end markers between a musttail call and ret
...
The allocas going out of scope are immediately killed by the return
instruction.
This is a resend of r208912, which was committed accidentally.
Reviewers: chandlerc
Differential Revision: http://reviews.llvm.org/D3792
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208920 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-15 21:10:46 +00:00
Reid Kleckner
cf7cfd8208
Revert "Don't insert lifetime.end markers between a musttail call and ret"
...
This reverts commit r208912.
It was committed accidentally without review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208914 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-15 20:41:05 +00:00
Reid Kleckner
24a50c5797
Don't insert lifetime.end markers between a musttail call and ret
...
The allocas going out of scope are immediately killed by the return
instruction.
Reviewers: chandlerc
Differential Revision: http://reviews.llvm.org/D3630
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208912 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-15 20:39:13 +00:00
Reid Kleckner
998c1e0c20
Teach the inliner how to preserve musttail invariants
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The interesting case is what happens when you inline a musttail call
through a musttail call site. In this case, we can't break perfect
forwarding or allow any stack growth.
Instead of merging control flow from the inlined return instruction
after a musttail call into the body of the caller, leave the inlined
return instruction in the caller so that the musttail call stays in the
tail position.
More work is required in http://reviews.llvm.org/D3630 to handle the
case where the inlined function has dynamic allocas or byval arguments.
Reviewers: chandlerc
Differential Revision: http://reviews.llvm.org/D3491
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208910 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-15 20:11:28 +00:00
Dan Gohman
3e054fe9ef
Use opt -S instead of piping bitcode output through llvm-dis.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81257 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 22:34:10 +00:00
Dan Gohman
b1e1e82c54
Change these tests to feed the assembly files to opt directly, instead
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of using llvm-as, now that opt supports this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 16:50:01 +00:00
Tanya Lattner
ec9a35a6f9
Remove llvm-upgrade and update test cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47793 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-01 09:15:35 +00:00
Reid Spencer
69ccadd753
Use the llvm-upgrade program to upgrade llvm assembly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 04:23:10 +00:00
Chris Lattner
2f4251bfbe
Make sure to not accidentally get a bogus tail marker
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21735 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-06 06:47:37 +00:00
