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4 Commits

Author SHA1 Message Date
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