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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
Vedant Kumar 1df820ecd7 [DCE] Salvage debug info from dead insts 
This results in small increases in the size of the .debug_loc section
and the number of unique source variables in a stage2 build of opt.

llvm-svn: 325301
 2018-02-15 22:26:18 +00:00
Justin Bogner 395c2127ed PM: Port DCE to the new pass manager 
Also add a very basic test, since apparently there aren't any tests
for DCE whatsoever to add the new pass version to.

llvm-svn: 267196
 2016-04-22 19:40:41 +00:00