llvm-project

Commit Graph

Author	SHA1	Message	Date
Stanislav Mekhanoshin	ae0f6620e4	[AMDGPU] Fix multiple vreg definitions in si-lower-control-flow Differential Revision: https://reviews.llvm.org/D26939 llvm-svn: 287608	2016-11-22 01:42:34 +00:00
Nicolai Haehnle	87bc4c218b	AMDGPU: Fix use-after-free in SIOptimizeExecMasking Summary: There was a bug with sequences like s_mov_b64 s[0:1], exec s_and_b64 s[2:3]<def>, s[0:1], s[2:3]<kill> ... s_mov_b64_term exec, s[2:3] because s[2:3] was defined and used in the same instruction, ending up with SaveExecInst inside OtherUseInsts. Note that the test case also exposes an unrelated bug. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98028 Reviewers: tstellarAMD, arsenm Subscribers: kzhuravl, wdng, yaxunl, llvm-commits, tony-tye Differential Revision: https://reviews.llvm.org/D25306 llvm-svn: 283528	2016-10-07 08:40:14 +00:00

Author

SHA1

Message

Date

Stanislav Mekhanoshin

ae0f6620e4

[AMDGPU] Fix multiple vreg definitions in si-lower-control-flow

Differential Revision: https://reviews.llvm.org/D26939

llvm-svn: 287608

2016-11-22 01:42:34 +00:00

Nicolai Haehnle

87bc4c218b

AMDGPU: Fix use-after-free in SIOptimizeExecMasking

Summary:
There was a bug with sequences like

   s_mov_b64 s[0:1], exec
   s_and_b64 s[2:3]<def>, s[0:1], s[2:3]<kill>
   ...
   s_mov_b64_term exec, s[2:3]

because s[2:3] was defined and used in the same instruction, ending up with
SaveExecInst inside OtherUseInsts.

Note that the test case also exposes an unrelated bug.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98028

Reviewers: tstellarAMD, arsenm

Subscribers: kzhuravl, wdng, yaxunl, llvm-commits, tony-tye

Differential Revision: https://reviews.llvm.org/D25306

llvm-svn: 283528

2016-10-07 08:40:14 +00:00

2 Commits