4 Commits

Author	SHA1	Message	Date
Stanislav Mekhanoshin	1384c3a5b8	[AMDGPU] Fix illegal agpr use by VALU ... When SIFixSGPRCopies attempts to fix an illegal copy from vector to scalar register it calls moveToVALU(). A copy from an agpr to sgpr becomes a copy from agpr to agpr, which may result in the illegal register class at a use of this copy. Solution is to copy it always into a vgpr. This may result in a subsequent copy into an agpr if that is what really needed, however should not happen too often and likely will be folded later. The opposite situation may not happen because an sgpr is always illegal where agpr is legal, so such user instructions may not exist. Differential Revision: https://reviews.llvm.org/D68358 llvm-svn: 373544	2019-10-02 23:23:46 +00:00
Stanislav Mekhanoshin	e67cc380a8	[AMDGPU] gfx908 mfma support ... Differential Revision: https://reviews.llvm.org/D64584 llvm-svn: 365824	2019-07-11 21:19:33 +00:00
Matt Arsenault	3c7581bbeb	AMDGPU: Use correct register names in inline assembly ... Fixes using physical registers in inline asm from clang. llvm-svn: 305004	2017-06-08 19:03:20 +00:00
Matt Arsenault	21a438255d	AMDGPU: Diagnose illegal SGPR to VGPR copies ... This is possible in ways that are not compiler bugs, so stop asserting on them. This emits an extra error when emitting objects when it can't encode the new pseudo, but I'm not sure that matters. llvm-svn: 299712	2017-04-06 21:09:53 +00:00