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30a21f9ce5
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 |
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Hello | ||
InstCombine | ||
Instrumentation | ||
IPO | ||
ObjCARC | ||
Scalar | ||
Utils | ||
Vectorize | ||
CMakeLists.txt | ||
LLVMBuild.txt | ||
Makefile |