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| author | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-10-02 23:09:44 +0000 |
|---|---|---|
| committer | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-10-02 23:09:44 +0000 |
| commit | 55015d210f2b999f6f35083c4b337038bb99da47 (patch) | |
| tree | ec06c6e946ea662e572d53306ab7d6e2d21d968b /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | bd0998a1beccf1d88443f87b6c2ed738675ec564 (diff) | |
| download | llvm-55015d210f2b999f6f35083c4b337038bb99da47.zip llvm-55015d210f2b999f6f35083c4b337038bb99da47.tar.gz llvm-55015d210f2b999f6f35083c4b337038bb99da47.tar.bz2 | |
[SCEV] Recognize simple br-phi patterns
Summary:
Teach SCEV to match patterns like
```
br %cond, label %left, label %right
left:
br label %merge
right:
br label %merge
merge:
V = phi [ %x, %left ], [ %y, %right ]
```
as "select %cond, %x, %y". Before this SCEV would match PHI nodes
exclusively to add recurrences.
This addresses PR25005.
Reviewers: joker.eph, joker-eph, atrick
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D13378
llvm-svn: 249211
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions