llvm-project

Commit Graph

Author	SHA1	Message	Date
Florian Hahn	e3ea97b049	[AArch64] Skip isZIPMask check for masks with an odd number of elements. We process 2 elements at a time and expect the number of elements to be even. Similar to D60690. Reviewers: dmgreen, samparker, t.p.northover Reviewed By: dmgreen Differential Revision: https://reviews.llvm.org/D65400 llvm-svn: 367831	2019-08-05 11:12:23 +00:00
Florian Hahn	4a8835c655	[AArch64] Skip mask checks for masks with an odd number of elements. Some checks in isShuffleMaskLegal expect an even number of elements, e.g. isTRN_v_undef_Mask or isUZP_v_undef_Mask, otherwise they access invalid elements and crash. This patch adds checks to the impacted functions. Fixes PR41951 Reviewers: t.p.northover, dmgreen, samparker Reviewed By: dmgreen Differential Revision: https://reviews.llvm.org/D60690 llvm-svn: 361235	2019-05-21 10:05:26 +00:00

Author

SHA1

Message

Date

Florian Hahn

e3ea97b049

[AArch64] Skip isZIPMask check for masks with an odd number of elements.

We process 2 elements at a time and expect the number of elements to be
even. Similar to D60690.

Reviewers: dmgreen, samparker, t.p.northover

Reviewed By: dmgreen

Differential Revision: https://reviews.llvm.org/D65400

llvm-svn: 367831

2019-08-05 11:12:23 +00:00

Florian Hahn

4a8835c655

[AArch64] Skip mask checks for masks with an odd number of elements.

Some checks in isShuffleMaskLegal expect an even number of elements,
e.g. isTRN_v_undef_Mask or isUZP_v_undef_Mask, otherwise they access
invalid elements and crash. This patch adds checks to the impacted
functions.

Fixes PR41951

Reviewers: t.p.northover, dmgreen, samparker

Reviewed By: dmgreen

Differential Revision: https://reviews.llvm.org/D60690

llvm-svn: 361235

2019-05-21 10:05:26 +00:00

2 Commits