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Author SHA1 Message Date
Florian Hahn 66400fc2dd
[ConstraintElimination] Support add with precondition. 
If we can prove that an addition without wrap flags won't wrap, decompse
the operation.

Issue #48253
 2022-02-11 20:26:25 +00:00
Florian Hahn d1e1a40527
[ConstraintElimination] Add test for #48253. 
Test from https://github.com/llvm/llvm-project/issues/48253.
 2022-02-11 17:07:13 +00:00
Bjorn Pettersson 8ebb3eac02 [test] Use -passes syntax when specifying pipeline in some more tests 
The legacy PM is deprecated, so update a bunch of lit tests running
opt to use the new PM syntax when specifying the pipeline.
In this patch focus has been put on test cases for ConstantMerge,
ConstraintElimination, CorrelatedValuePropagation, GlobalDCE,
GlobalOpt, SCCP, TailCallElim and PredicateInfo.

Differential Revision: https://reviews.llvm.org/D114516
 2021-11-27 09:52:55 +01:00
Florian Hahn 14da287e18
[ConstraintElimination] Extend test coverage. 
This patch adds a lot of additional tests, focusing on loops and GEP
arithmetic. Some of the tests expose existing problems, which will be
fixed soon.
 2021-02-06 21:21:48 +00:00