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Author SHA1 Message Date
Stanislav Mekhanoshin 574a9dabc6 [AMDGPU] Always expand system scope fp atomics on gfx90a 
FP atomics in system scope cannot be used and shall always
be expanded in a CAS loop.

Differential Revision: https://reviews.llvm.org/D98085
 2021-03-10 12:35:23 -08:00
Matt Arsenault 589223e044 AMDGPU: Remove special case in shouldCoalesce 
Unaligned registers are now constrained with classes, rather than
specially reserving a subset of the whole class.
 2021-02-24 14:49:44 -05:00
Stanislav Mekhanoshin a8d9d50762 [AMDGPU] gfx90a support 
Differential Revision: https://reviews.llvm.org/D96906
 2021-02-17 16:01:32 -08:00