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Author SHA1 Message Date
Serge Pavlov 77b923d0db [ConstantFolding] Do not remove side effect from constrained functions 
According to the discussion in https://reviews.llvm.org/D110322 the code
that removes side effect from replaced function call is deleted.

Differential Revision: https://reviews.llvm.org/D115870
 2021-12-22 13:45:49 +07:00
Kevin P. Neal 727a891ec8 [FPEnv][InstSimplify] Fold fadd X, 0 ==> X, when we know X is not -0 
Currently the fadd optimizations in InstSimplify don't know how to do this
NoSignedZeros "X + 0.0 ==> X" fold when using the constrained intrinsics.
This adds the support.

This review is derived from D106362 with some improvements from D107285
and is a follow-on to D111085.

Differential Revision: https://reviews.llvm.org/D111450
 2021-10-14 12:32:45 -04:00
Kevin P. Neal f86c930cc9 [FPEnv][InstSimplify] Fold constrained X + -0.0 ==> X 
Currently the fadd optimizations in InstSimplify don't know how to do this
"X + -0.0 ==> X" fold when using the constrained intrinsics. This adds the
support.

This commit is derived from D106362 with some improvements from D107285.

Differential Revision: https://reviews.llvm.org/D111085
 2021-10-06 13:52:31 -04:00
Kevin P. Neal 770c57898e [FPEnv][InstSimplify] Prepush more tests for D106362. 
In working on D106362 I found that a few more tests were needed. I've
been asked to pre-push the tests for that ticket. This should complete
the tests needed for now.
 2021-10-04 13:48:34 -04:00
Kevin P. Neal 2a7ee6b5c1 [FPEnv][InstSimplify] Enable more folds for constrained fadd 
Precommit tests, try 2. My tree is up-to-date as of this morning so this
should go better than my first try.
 2021-07-26 14:06:21 -04:00
Kevin P. Neal aee8457b8d Revert "[FPEnv][InstSimplify] Enable more folds for constrained fadd" 
Build bots have started failing.

This reverts commit 64c2b2c69d.
 2021-07-23 15:09:05 -04:00
Kevin P. Neal 64c2b2c69d [FPEnv][InstSimplify] Enable more folds for constrained fadd 
Precommit tests.
 2021-07-23 14:59:38 -04:00