llvm-project

Commit Graph

Author	SHA1	Message	Date
Stanislav Mekhanoshin	da1628eb67	[AMDGPU] Fixed hang during DAG combine SITargetLowering::reassociateScalarOps() does not touch constants so that DAGCombiner::ReassociateOps() does not revert the combine. However a global address is not a ConstantSDNode. Switched to the method used by DAGCombiner::ReassociateOps() itself to detect constants. Differential Revision: https://reviews.llvm.org/D58695 llvm-svn: 354926	2019-02-26 20:56:25 +00:00
Stanislav Mekhanoshin	871821f786	[AMDGPU] Ressociate 'add (add x, y), z' to use SALU Reassociate adds to collect scalar operands in a single instruction when possible. That will result in a scalar add followed by vector instead of two vector adds, thus better utilizing SALU. Differential Revision: https://reviews.llvm.org/D58220 llvm-svn: 354066	2019-02-14 22:11:25 +00:00

Author

SHA1

Message

Date

Stanislav Mekhanoshin

da1628eb67

[AMDGPU] Fixed hang during DAG combine

SITargetLowering::reassociateScalarOps() does not touch constants
so that DAGCombiner::ReassociateOps() does not revert the combine.
However a global address is not a ConstantSDNode.

Switched to the method used by DAGCombiner::ReassociateOps() itself
to detect constants.

Differential Revision: https://reviews.llvm.org/D58695

llvm-svn: 354926

2019-02-26 20:56:25 +00:00

Stanislav Mekhanoshin

871821f786

[AMDGPU] Ressociate 'add (add x, y), z' to use SALU

Reassociate adds to collect scalar operands in a single
instruction when possible. That will result in a scalar
add followed by vector instead of two vector adds, thus
better utilizing SALU.

Differential Revision: https://reviews.llvm.org/D58220

llvm-svn: 354066

2019-02-14 22:11:25 +00:00

2 Commits