Commit Graph

10 Commits

Author SHA1 Message Date
Juneyoung Lee 9b3c2a72e4 [ValueTracking] Use assume's noundef operand bundle
This patch updates `isGuaranteedNotToBeUndefOrPoison` to use `llvm.assume`'s `noundef` operand bundle.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D89219
2020-10-14 20:16:33 +09:00
Tyker b7338fb1a6 [AssumeBundles] add cannonicalisation to the assume builder
Summary:
this reduces significantly the number of assumes generated without aftecting too much
the information that is preserved. this improves the compile-time cost
of enable-knowledge-retention significantly.

Reviewers: jdoerfert, sstefan1

Reviewed By: jdoerfert

Subscribers: hiraditya, asbirlea, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79650
2020-06-19 10:32:26 +02:00
Tyker d7deef1206 Revert "[AssumeBundles] add cannonicalisation to the assume builder"
This reverts commit 90c50cad19.
2020-06-16 14:34:55 +02:00
Tyker 90c50cad19 [AssumeBundles] add cannonicalisation to the assume builder
Summary:
this reduces significantly the number of assumes generated without aftecting too much
the information that is preserved. this improves the compile-time cost
of enable-knowledge-retention significantly.

Reviewers: jdoerfert, sstefan1

Reviewed By: jdoerfert

Subscribers: hiraditya, asbirlea, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79650
2020-06-16 13:12:35 +02:00
Tyker 69375fd0a3 [AssumeBundles] Preserve Information in the inliner
Summary:
during inling Create and insert an llvm.assume with attributes to preserve them.
to prevent any changes for now generation of llvm.assume is under a flag disabled by default.

Reviewers: jdoerfert

Reviewed By: jdoerfert

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D75825
2020-03-13 17:35:47 +01:00
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
Hans Wennborg 2d5841fa73 Revert r296366 "[InlineFunction] add nonnull assumptions based on argument attributes"
It causes miscompiles e.g. during self-host of Clang (PR32082).

llvm-svn: 296398
2017-02-27 22:33:02 +00:00
Sanjay Patel 40975e05eb [InlineFunction] add nonnull assumptions based on argument attributes
This was suggested in D27855: have the inliner add assumptions, so we don't 
lose nonnull info provided by argument attributes.

This still doesn't solve PR28430 (dyn_cast), but this gets us closer.

https://reviews.llvm.org/D29999

llvm-svn: 296366
2017-02-27 18:13:48 +00:00
Sanjay Patel 056218644b [Inline] add tests to show attribute information loss; NFC
llvm-svn: 295209
2017-02-15 17:42:58 +00:00