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| author | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-10-07 17:38:31 +0000 |
|---|---|---|
| committer | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-10-07 17:38:31 +0000 |
| commit | 0015e5a088b851dfd2405f05eb4c512f8089fc20 (patch) | |
| tree | 7bff8bc54fa5687139a4ffd0795d67bc757dc349 /llvm/lib/IR/Module.cpp | |
| parent | 4493b4000237688fb32225450ee4d400fba2d643 (diff) | |
| download | llvm-0015e5a088b851dfd2405f05eb4c512f8089fc20.zip llvm-0015e5a088b851dfd2405f05eb4c512f8089fc20.tar.gz llvm-0015e5a088b851dfd2405f05eb4c512f8089fc20.tar.bz2 | |
[IndVars] Preserve LCSSA in `eliminateIdentitySCEV`
Summary:
After r249211, SCEV can see through some LCSSA phis. Add a
`replacementPreservesLCSSAForm` check before replacing uses of these phi
nodes with a simplified use of the induction variable to avoid breaking
LCSSA.
Fixes 25047.
Depends on D13460.
Reviewers: atrick, hfinkel
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D13461
llvm-svn: 249575
Diffstat (limited to 'llvm/lib/IR/Module.cpp')
0 files changed, 0 insertions, 0 deletions