Erik Verbruggen 0edc5e8391 Reassociate x + -0.1234 * y into x - 0.1234 * y ...

This does not require -ffast-math, and it gives CSE/GVN more options to
eliminate duplicate expressions in, e.g.:

  return ((x + 0.1234 * y) * (x - 0.1234 * y));

Differential Revision: http://reviews.llvm.org/D4904



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216169 91177308-0d34-0410-b5e6-96231b3b80d8

2014-08-21 10:45:30 +00:00

..

2002-05-15-AgressiveSubMove.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

2002-05-15-MissedTree.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

2002-05-15-SubReassociate.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

2002-07-09-DominanceProblem.ll

…

2003-08-12-InfiniteLoop.ll

…

2005-09-01-ArrayOutOfBounds.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

2006-04-27-ReassociateVector.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

2011-01-26-UseAfterFree.ll

…

2012-05-08-UndefLeak.ll

Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.

2013-07-14 01:42:54 +00:00

2012-06-08-InfiniteLoop.ll

…

absorption.ll

Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.

2013-07-14 01:42:54 +00:00

basictest.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

crash.ll

…

fast-AgressiveSubMove.ll

[Reassociation] Add support for reassociation with unsafe algebra.

2014-08-14 15:23:01 +00:00

fast-ArrayOutOfBounds.ll

[Reassociation] Add support for reassociation with unsafe algebra.

2014-08-14 15:23:01 +00:00

fast-basictest.ll

Reassociate x + -0.1234 * y into x - 0.1234 * y

2014-08-21 10:45:30 +00:00

fast-fp-commute.ll

[Reassociation] Add support for reassociation with unsafe algebra.

2014-08-14 15:23:01 +00:00

fast-mightymul.ll

[Reassociation] Add support for reassociation with unsafe algebra.

2014-08-14 15:23:01 +00:00

fast-MissedTree.ll

[Reassociation] Add support for reassociation with unsafe algebra.

2014-08-14 15:23:01 +00:00

fast-multistep.ll

[Reassociation] Add support for reassociation with unsafe algebra.

2014-08-14 15:23:01 +00:00

fast-ReassociateVector.ll

[Reassociation] Add support for reassociation with unsafe algebra.

2014-08-14 15:23:01 +00:00

fast-SubReassociate.ll

[Reassociation] Add support for reassociation with unsafe algebra.

2014-08-14 15:23:01 +00:00

fp-commute.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

inverses.ll

[Reassociate] Similar to "X + -X" -> "0", added code to handle "X + ~X" -> "-1".

2014-05-31 15:01:54 +00:00

liftsign.ll

Reassociate x + -0.1234 * y into x - 0.1234 * y

2014-08-21 10:45:30 +00:00

looptest.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

mightymul.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

mulfactor.ll

Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.

2013-07-14 01:42:54 +00:00

multistep.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

negation.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

no-op.ll

Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.

2013-07-14 01:42:54 +00:00

optional-flags.ll

Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.

2013-07-14 01:42:54 +00:00

otherops.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

pr12245.ll

TBAA: remove !tbaa from testing cases if not used.

2013-04-30 17:52:57 +00:00

repeats.ll

Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.

2013-07-14 01:42:54 +00:00

secondary.ll

…

shift-factor.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

shifttest.ll

…

subtest.ll

[Reassociate] FileCheckize and cleanup a few testcases. No functional change

2014-06-11 18:28:45 +00:00

xor_reassoc.ll

Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.

2013-07-14 01:42:54 +00:00