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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
Michael Zolotukhin d57f4b9011 [Tests] Add one more case to LoopUnroll/pr18861.ll for better coverage. 
llvm-svn: 249174
 2015-10-02 19:21:52 +00:00
Michael Zolotukhin 8df4bddd16 [Tests] Give meaningful names to blocks in LoopUnroll/pr18861.ll, add a description of what's going on. 
llvm-svn: 249173
 2015-10-02 19:21:49 +00:00
Michael Zolotukhin 47eef7a3c9 [Tests] Slightly reduce test LoopUnroll/pr18861.ll. 
llvm-svn: 249172
 2015-10-02 19:21:43 +00:00
Dinesh Dwivedi d266cb1a0b LCSSA should be performed on the outermost affected loop while unrolling loop. 
During loop-unroll, loop exits from the current loop may end up in in different
outer loop. This requires to re-form LCSSA recursively for one level down from
the outer most loop where loop exits are landed during unroll. This fixes PR18861.

Differential Revision: http://reviews.llvm.org/D2976

llvm-svn: 209796
 2014-05-29 06:47:23 +00:00