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Author SHA1 Message Date
Jinsong Ji 216be996d6 [NFC][PowerPC] Consolidate testing of common linkage symbols 
Add a new file to test the code gen for common linkage symbol.
Remove common linkage in some other testcases to avoid distraction.

llvm-svn: 372426
 2019-09-20 20:31:37 +00:00
Stefan Pintilie 9495f33e45 [PowerPC] Check if the pre-increment PHI Node already exists 
Preparations to use the per-increment are sometimes done in the target
independent pass Loop Strength Reduction. We try to detect them in the PowerPC
specific pass so that they are not done twice and so that we do not add PHIs
that are not required.

Differential Revision: https://reviews.llvm.org/D36736

llvm-svn: 311332
 2017-08-21 13:36:18 +00:00