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6 Commits

Author SHA1 Message Date
Sanjay Patel 36f6866886 [ConstantFold] fix inconsistent handling of extractelement with undef index (PR42689) 
Any constant other than zero was already folded to undef if the index is undef.
https://bugs.llvm.org/show_bug.cgi?id=42689

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374729 91177308-0d34-0410-b5e6-96231b3b80d8
 2019-10-13 17:34:08 +00:00
Sanjay Patel f6329e2f94 [ConstProp] add tests for extractelement with undef index; NFC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374210 91177308-0d34-0410-b5e6-96231b3b80d8
 2019-10-09 20:14:17 +00:00
Eric Christopher 598198edbc Revert "Temporarily Revert "Add basic loop fusion pass."" 
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358552 91177308-0d34-0410-b5e6-96231b3b80d8
 2019-04-17 04:52:47 +00:00
Eric Christopher 02cc44c1b9 Temporarily Revert "Add basic loop fusion pass." 
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358546 91177308-0d34-0410-b5e6-96231b3b80d8
 2019-04-17 02:12:23 +00:00
Pawel Bylica 59764b94a7 Constfold insertelement to undef when index is out-of-bounds 
Summary:
This patch adds constant folding of insertelement instruction to undef value when index operand is constant and is not less than vector size or is undef.

InstCombine does not support this case, but I'm happy to add it there also if this change is accepted.

Test Plan: Unittests and regression tests for ConstProp pass.

Reviewers: majnemer

Reviewed By: majnemer

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9287

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235854 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-04-27 09:30:49 +00:00
Rafael Espindola 1b4da6c8ce Avoid conversion to float when creating ConstantDataArray/ConstantDataVector. 
Patch by Raoux, Thomas F!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229864 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-02-19 16:08:20 +00:00