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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
Max Kazantsev b0a9b75e2a Add missing REQUIRES: asserts 
llvm-svn: 347644
 2018-11-27 07:51:18 +00:00
Max Kazantsev c4e4d6449a [LoopSimplifyCFG] Fix corner case with duplicating successors 
It fixes a bug that doesn't update Phi inputs of the only live successor that
is in the list of block's successors more than once.

Thanks @uabelho for finding this.

Differential Revision: https://reviews.llvm.org/D54849
Reviewed By: anna

llvm-svn: 347640
 2018-11-27 06:17:21 +00:00
Max Kazantsev 7231009b78 [NFC] Add test that demonstrates buggy behavior on term folding of LoopSimplifyCFG 
llvm-svn: 347488
 2018-11-23 10:34:22 +00:00