5 Commits

Author	SHA1	Message	Date
Eric Christopher	cee313d288	Revert "Temporarily Revert "Add basic loop fusion pass."" ... The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552	2019-04-17 04:52:47 +00:00
Eric Christopher	a863435128	Temporarily Revert "Add basic loop fusion pass." ... As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546	2019-04-17 02:12:23 +00:00
Sanjay Patel	998ececef0	[InstCombine] remove dead code from visitExtractElement ... Extracting from a splat constant is always handled by InstSimplify. Move the test for this from InstCombine to InstSimplify to make sure that stays true. llvm-svn: 348423	2018-12-05 23:09:33 +00:00
Philip Reames	e499bc3042	[instsimplify] consistently handle undef and out of bound indices for insertelement and extractelement ... In one case, we were handling out of bounds, but not undef indices. In the other, we were handling undef (with the comment making the analogy to out of bounds), but not out of bounds. Be consistent and treat both undef and constant out of bounds indices as producing undefined results. As a side effect, this also protects instcombine from having to handle large constant indices as we always simplify first. llvm-svn: 321575	2017-12-30 05:54:22 +00:00
Simon Pilgrim	79c2c2f08c	[InstSimplify] Check for in range extraction index before calling APInt::getZExtValue() ... Reduced from oss-fuzz #4768 test case llvm-svn: 321454	2017-12-26 11:42:39 +00:00