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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
Daniel Berlin e3e69e1680 NewGVN: Rewrite DCE during elimination so we do it as well as old GVN did. 
llvm-svn: 297428
 2017-03-10 00:32:33 +00:00
Daniel Berlin a53a72243a NewGVN: Instead of changeToUnreachable, insert an instruction SimplifyCFG will turn into unreachable when it runs 
llvm-svn: 293515
 2017-01-30 18:12:56 +00:00
Daniel Berlin e60a791748 Update pr31758.ll for unreachable revert 
llvm-svn: 293502
 2017-01-30 17:08:06 +00:00
Daniel Berlin 66e3a3d0ac NewGVN: Fix output of pr31578 testcase now that we mark unreachable blocks as unreachable 
llvm-svn: 293198
 2017-01-26 18:49:03 +00:00
Davide Italiano ccbbc8313f [NewGVN] Skip uses in unreachable blocks. 
Otherwise we ask for a domtree node that's not there, and we crash.

Differential Revision:  https://reviews.llvm.org/D29145

llvm-svn: 293122
 2017-01-26 00:42:42 +00:00