Commit Graph

6 Commits

Author SHA1 Message Date
Eric Christopher cee313d288 Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00
Eric Christopher a863435128 Temporarily Revert "Add basic loop fusion pass."
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546
2019-04-17 02:12:23 +00:00
Sanjay Patel b276dd195a [InstCombine] canonicalize select shuffles by commuting
In PR41304:
https://bugs.llvm.org/show_bug.cgi?id=41304
...we have a case where we want to fold a binop of select-shuffle (blended) values.

Rather than try to match commuted variants of the pattern, we can canonicalize the
shuffles and check for mask equality with commuted operands.

We don't produce arbitrary shuffle masks in instcombine, but select-shuffles are a
special case that the backend is required to handle because we already canonicalize
vector select to this shuffle form.

So there should be no codegen difference from this change. It's possible that this
improves CSE in IR though.

Differential Revision: https://reviews.llvm.org/D60016

llvm-svn: 357366
2019-03-31 15:01:30 +00:00
Sanjay Patel 2bff8b4272 [InstCombine] regenerate test checks; NFC
llvm-svn: 357288
2019-03-29 17:47:51 +00:00
Craig Topper 9bae5ba076 [X86] Add ImmArg markings to intrinsics.
Remove test cases that checked for not crashing when immediate operands were passed not an immediate. These are now considered ill-formed in IR.

This was done by manually scanning the intrinsic file for llvm_i32_ty and llvm_i8_ty which are the predominant types we use for immediates. Most of them are on vector intrinsics. I might have missed some other intrinsics.

Differential Revision: https://reviews.llvm.org/D58302

llvm-svn: 355993
2019-03-12 23:48:07 +00:00
Justin Bogner 3c6fbad388 InstCombine: Move tests that use target intrinsics into subdirectories
Tests with target intrinsics are inherently target specific, so it
doesn't actually make sense to run them if we've excluded their
target.

llvm-svn: 302979
2017-05-13 05:39:46 +00:00