3 Commits

Author	SHA1	Message	Date
Matt Arsenault	3c5e4237c6	AMDGPU: Make some packed shuffles free ... VOP3P instructions can encode access to either half of the register. llvm-svn: 302730	2017-05-10 21:29:33 +00:00
Matt Arsenault	3dbeefa978	AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel ... Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel. Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel). llvm-svn: 298444	2017-03-21 21:39:51 +00:00
Matt Arsenault	e830f5427b	AMDGPU: Report extractelement as free in cost model ... The cost for scalarized operations is computed as N * (scalar operation cost + 1 extractelement + 1 insertelement). This partially fixes inflating the cost of scalarized operations since every operation is scalarized and free. I don't think we want any cost asociated with scalarization, but for now insertelement is still counted. I'm not sure if we should pretend that insertelement is also free, or add a way to compute a custom scalarization cost. llvm-svn: 254438	2015-12-01 19:08:39 +00:00