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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
Matthew Voss 30648ab233 [GVN] Avoid casting a vector of size less than 8 bits to i8 
Summary:
A reprise of D25849.

This crash was found through fuzzing some time ago and was documented in PR28879.

No check for load size has been added due to the following tests:
  - Transforms/GVN/invariant.group.ll
  - Transforms/GVN/pr10820.ll

These tests expect load sizes that are not a multiple of eight.

Thanks to @davide for the original patch.

Reviewers: nlopes, davide, RKSimon, reames, efriedma

Reviewed By: efriedma

Subscribers: davide, llvm-commits, Prazek

Differential Revision: https://reviews.llvm.org/D48330

llvm-svn: 335294
 2018-06-21 21:43:20 +00:00