2 Commits

Author	SHA1	Message	Date
Nemanja Ivanovic	559fb26604	[PowerPC] Reverting sequence of patches for elimination of comparison instructions ... In the past while, I've committed a number of patches in the PowerPC back end aimed at eliminating comparison instructions. However, this causes some failures in proprietary source and these issues are not observed in SPEC or any open source packages I've been able to run. As a result, I'm pulling the entire series and will refactor it to: - Have a single entry point for easy control - Have fine-grained control over which patterns we transform A side-effect of this is that test cases for these patches (and modified by them) are XFAIL-ed. This is a temporary measure as it is counter-productive to remove/modify these test cases and then have to modify them again when the refactored patch is recommitted. The failure will be investigated in parallel to the refactoring effort and the recommit will either have a fix for it or will leave this transformation off by default until the problem is resolved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314244 91177308-0d34-0410-b5e6-96231b3b80d8	2017-09-26 20:42:47 +00:00
Nemanja Ivanovic	47a09dc91f	[PowerPC] Eliminate compares - add i32 sext/zext handling for SETULE/SETUGE ... As mentioned in https://reviews.llvm.org/D33718, this simply adds another pattern to the compare elimination sequence and is committed without a differential revision. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314060 91177308-0d34-0410-b5e6-96231b3b80d8	2017-09-23 09:50:12 +00:00