Matt Arsenault f9a42ed0a7 AMDGPU: Relax 32-bit SGPR register class ...

Mostly use SReg_32 instead of SReg_32_XM0 for arbitrary values. This
will allow the register coalescer to do a better job eliminating
copies to m0.

For GlobalISel, as a terrible hack, use SGPR_32 for things that should
use SCC until booleans are solved.

llvm-svn: 375267

2019-10-18 18:26:37 +00:00

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