diff options
| author | Jingyue Wu <jingyue@google.com> | 2014-08-22 22:45:57 +0000 |
|---|---|---|
| committer | Jingyue Wu <jingyue@google.com> | 2014-08-22 22:45:57 +0000 |
| commit | ec33fa9aca4dc1baaeffcd8876fb385e1f8cb86e (patch) | |
| tree | e8ff1c2f1c7db7219bf36dbd35eb63cd1ccd8d84 /llvm/tools/llvm-cov/TestingSupport.cpp | |
| parent | 86084661482dc942d7ea6afdad3e9e982590b5b0 (diff) | |
| download | bcm5719-llvm-ec33fa9aca4dc1baaeffcd8876fb385e1f8cb86e.tar.gz bcm5719-llvm-ec33fa9aca4dc1baaeffcd8876fb385e1f8cb86e.zip | |
[SROA] Fold a PHI node if all its incoming values are the same
Summary:
Fixes PR20425.
During slice building, if all of the incoming values of a PHI node are the same, replace the PHI node with the common value. This simplification makes alloca's used by PHI nodes easier to promote.
Test Plan: Added three more tests in phi-and-select.ll
Reviewers: nlewycky, eliben, meheff, chandlerc
Reviewed By: chandlerc
Subscribers: zinovy.nis, hfinkel, baldrick, llvm-commits
Differential Revision: http://reviews.llvm.org/D4659
llvm-svn: 216299
Diffstat (limited to 'llvm/tools/llvm-cov/TestingSupport.cpp')
0 files changed, 0 insertions, 0 deletions
