llvm-project

Commit Graph

Author	SHA1	Message	Date
Bjorn Pettersson	b280ee1dd7	[test] Use -passes=instsimplify instead of -instsimplify in a number of tests. NFC Another step moving away from the deprecated syntax of specifying pass pipeline in opt. Differential Revision: https://reviews.llvm.org/D119080	2022-02-07 14:26:58 +01:00
Matt Arsenault	0347039a6e	ValueTracking: Fix isKnownNonZero for non-0 null pointers for byval The IR doesn't have a proper concept of invalid pointers, and "null" constants are just all zeros (though it really needs one). I think it's not possible to break this for AMDGPU due to the copy semantics of byval. If you have an original stack object at 0, the byval copy will be placed above it so I don't think it's really possible to hit a 0 address.	2020-07-16 13:50:49 -04:00

Author

SHA1

Message

Date

Bjorn Pettersson

b280ee1dd7

[test] Use -passes=instsimplify instead of -instsimplify in a number of tests. NFC

Another step moving away from the deprecated syntax of specifying
pass pipeline in opt.

Differential Revision: https://reviews.llvm.org/D119080

2022-02-07 14:26:58 +01:00

Matt Arsenault

0347039a6e

ValueTracking: Fix isKnownNonZero for non-0 null pointers for byval

The IR doesn't have a proper concept of invalid pointers, and "null"
constants are just all zeros (though it really needs one).

I think it's not possible to break this for AMDGPU due to the copy
semantics of byval. If you have an original stack object at 0, the
byval copy will be placed above it so I don't think it's really
possible to hit a 0 address.

2020-07-16 13:50:49 -04:00

2 Commits