4 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	d640641a61	[InstCombine] add folds for icmp (smin X, Y), X ... Min/max canonicalization (r287585) exposes the fact that we're missing combines for min/max patterns. This patch won't solve the example that was attached to that thread, so something else still needs fixing. The line between InstCombine and InstSimplify gets blurry here because sometimes the icmp instruction that we want to fold to already exists, but sometimes it's the swapped form of what we want. Corresponding changes for smax/umin/umax to follow. Differential Revision: https://reviews.llvm.org/D27531 llvm-svn: 289855	2016-12-15 19:13:37 +00:00
Sanjay Patel	964c735f86	[InstCombine] add tests for smin+icmp; NFC ... The tests that already work are folded in InstSimplify, so those tests should be redundant and we can remove them if they don't seem worthwhile for completeness. llvm-svn: 288957	2016-12-07 18:56:55 +00:00