4 Commits

Author	SHA1	Message	Date
Jinsong Ji	b7b3d866a4	[PowerPC][NFC] Fix typos in triples ... Found by bzEq (Kai Luo). llvm-svn: 360643	2019-05-14 03:11:24 +00:00
Nemanja Ivanovic	72d4866e57	[DAGCombiner] Expand combining of FP logical ops to sign-setting FP ops ... We already do the following combines: (bitcast int (and (bitcast fp X to int), 0x7fff...) to fp) -> fabs X (bitcast int (xor (bitcast fp X to int), 0x8000...) to fp) -> fneg X When the target has "bit preserving fp logic". This patch just extends it to also combine: (bitcast int (or (bitcast fp X to int), 0x8000...) to fp) -> fneg (fabs X) As some targets have fnabs and even those that don't can efficiently lower both the fabs and the fneg. Differential revision: https://reviews.llvm.org/D44548 llvm-svn: 344093	2018-10-09 23:20:11 +00:00
Nemanja Ivanovic	c62dfe512e	[PowerPC][NFC] Commit nabs test case in preparation for committing D44548 ... This just adds the test case so that the different code gen is clearly visible when the DAG Combine lands. llvm-svn: 344091	2018-10-09 23:02:53 +00:00
Nemanja Ivanovic	87873d04c3	[PowerPC] Implement hasBitPreservingFPLogic for types that can be supported ... This is the PPC-specific non-controversial part of https://reviews.llvm.org/D44548 that simply enables this combine for PPC since PPC has these instructions. This commit will allow the target-independent portion to be truly target independent. llvm-svn: 344077	2018-10-09 20:35:15 +00:00