llvm-project

Commit Graph

Author	SHA1	Message	Date
Matt Arsenault	a353fd572a	AMDGPU: Make exec mask optimzations more resistant to block splits Also improve the check for SALU instructions to also ignore implicit_def and other fake instructions. llvm-svn: 357170	2019-03-28 14:01:39 +00:00
Matt Arsenault	4d47ac3b30	AMDGPU: Add additional MIR tests for exec mask optimizations Also includes one example of how this transform is unsound. This isn't verifying the copies are used in the control flow intrinisic patterns. Also add option to disable exec mask opt pass. Since this pass is unsound, it may be useful to turn it off until it is fixed. llvm-svn: 357091	2019-03-27 16:58:30 +00:00
Matt Arsenault	4ab28b64b4	AMDGPU: Skip debug_instr when collapsing end_cf Based on how these are inserted, I doubt this was causing a problem in practice. llvm-svn: 357090	2019-03-27 16:58:27 +00:00

Author

SHA1

Message

Date

Matt Arsenault

a353fd572a

AMDGPU: Make exec mask optimzations more resistant to block splits

Also improve the check for SALU instructions to also ignore
implicit_def and other fake instructions.

llvm-svn: 357170

2019-03-28 14:01:39 +00:00

Matt Arsenault

4d47ac3b30

AMDGPU: Add additional MIR tests for exec mask optimizations

Also includes one example of how this transform is unsound. This isn't
verifying the copies are used in the control flow intrinisic patterns.

Also add option to disable exec mask opt pass. Since this pass is
unsound, it may be useful to turn it off until it is fixed.

llvm-svn: 357091

2019-03-27 16:58:30 +00:00

Matt Arsenault

4ab28b64b4

AMDGPU: Skip debug_instr when collapsing end_cf

Based on how these are inserted, I doubt this was causing a problem in
practice.

llvm-svn: 357090

2019-03-27 16:58:27 +00:00

3 Commits