2 Commits

Author	SHA1	Message	Date
Matt Arsenault	08906a3c62	AMDGPU: Fix using incorrect private resource with no allocation ... It's possible to have a use of the private resource descriptor or scratch wave offset registers even though there are no allocated stack objects. This would result in continuing to use the maximum number reserved registers. This could go over the number of SGPRs available on VI, or violate the SGPR limit requested by the function attributes. llvm-svn: 285435	2016-10-28 19:43:31 +00:00
Matt Arsenault	253640e18d	AMDGPU: Assume spilling will occur at -O0 ... Because everything live is spilled at the end of a block by fast regalloc, assume this will happen and avoid the copies of the resource descriptor. llvm-svn: 284119	2016-10-13 13:10:00 +00:00