5 Commits

Author	SHA1	Message	Date
Eric Christopher	598198edbc	Revert "Temporarily Revert "Add basic loop fusion pass."" ... The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358552 91177308-0d34-0410-b5e6-96231b3b80d8	2019-04-17 04:52:47 +00:00
Eric Christopher	02cc44c1b9	Temporarily Revert "Add basic loop fusion pass." ... As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358546 91177308-0d34-0410-b5e6-96231b3b80d8	2019-04-17 02:12:23 +00:00
Chad Rosier	3ac68db42d	[ValueTracking] Improve isImpliedCondition when the dominating cond is false. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267430 91177308-0d34-0410-b5e6-96231b3b80d8	2016-04-25 17:23:36 +00:00
Chad Rosier	2974be9d8b	[ValueTracking] Improve isImpliedCondition for conditions with matching operands. ... This patch improves SimplifyCFG to catch cases like: if (a < b) { if (a > b) <- known to be false unreachable; } Phabricator Revision: http://reviews.llvm.org/D18905 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266767 91177308-0d34-0410-b5e6-96231b3b80d8	2016-04-19 17:19:14 +00:00
Sanjoy Das	ee37e50003	[JumpThreading] Use dominating conditions to prove implications ... Summary: If P branches to Q conditional on C and Q branches to R conditional on C' and C => C' then the branch conditional on C' can be folded to an unconditional branch. Reviewers: reames Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D13972 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251557 91177308-0d34-0410-b5e6-96231b3b80d8	2015-10-28 21:27:08 +00:00