llvm-project.git/llvm/test/Transforms/LoopPredication/reverse.ll, branch main

[LoopPredication] Fix the LoopPredication by feezing the result of predication.

2023-03-29T08:12:00+00:00

LoopPredication introduces the use of possibly posion value in branch (guard)
instruction, so to avoid introducing undefined behavior it should be frozen.

Reviewed By: mkazantsev
Differential Revision: https://reviews.llvm.org/D146685

[LoopPredication] Convert tests to opaque pointers (NFC)

2023-01-02T15:52:03+00:00

[NFC] Port all LoopPredication tests to `-passes=` syntax

2022-12-07T23:38:46+00:00

[LoopPredication] Insert assumes of conditions of predicated guards

2022-10-07T09:10:24+00:00

As LoopPredication performs non-equivalent transforms removing some
checks from loops, other passes may not be able to perform transforms
they'd be able to do if the checks were left in loops.

This patch makes LoopPredication insert assumes of the replaced
conditions either after a guard call or in the true block of
widenable condition branch.

Differential Revision: https://reviews.llvm.org/D135354

Revert rest of `IRBuilderBase`'s short-circuiting folds

2021-10-27T23:15:14+00:00

Upon further investigation and discussion,
this is actually the opposite direction from what we should be taking,
and this direction wouldn't solve the motivational problem anyway.

Additionally, some more (polly) tests have escaped being updated.
So, let's just take a step back here.

This reverts commit f3190dedeef9da2109ea57e4cb372f295ff53b88.
This reverts commit 749581d21f2b3f53e4fca4eb8728c942d646893b.
This reverts commit f3df87d57e096143670e0fd396e81d43393a2dd2.
This reverts commit ab1dbcecd6f0969976fafd62af34730436ad5944.

[IR] `IRBuilderBase::CreateAnd()`: short-circuit `x & 0` --> `0`

2021-10-27T15:01:06+00:00

https://alive2.llvm.org/ce/z/YzPhSb

Refs. https://reviews.llvm.org/D109368#3089809

[LoopPredication] Preserve MemorySSA

2021-08-26T15:36:25+00:00

Since LICM has now unconditionally moved to MemorySSA based form, all
passes that run in same LPM as LICM need to preserve MemorySSA (i.e. our
downstream pipeline).

Added loop-mssa to all tests and perform -verify-memoryssa within
LoopPredication itself.

Differential Revision: https://reviews.llvm.org/D108724

Revert "Temporarily Revert "Add basic loop fusion pass.""

2019-04-17T04:52:47+00:00

The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552

Temporarily Revert "Add basic loop fusion pass."

2019-04-17T02:12:23+00:00

As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546

[LoopPred] Delete the old condition expressions if unused

2019-04-01T16:05:15+00:00

LoopPredication was replacing the original condition, but leaving the instructions to compute the old conditions around.  This would get cleaned up by other passes of course, but we might as well do it eagerly.  That also makes the test output less confusing.  

llvm-svn: 357406