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[AMDGPU] Update isFMAFasterThanFMulAndFAdd assumptions
authorCarl Ritson <carl.ritson@amd.com>
Tue, 7 Jul 2020 06:40:35 +0000 (15:40 +0900)
committerCarl Ritson <carl.ritson@amd.com>
Tue, 7 Jul 2020 06:40:44 +0000 (15:40 +0900)
commit560292fa990a2bfcf8415f07a166393beff667f6
tree816c87bf056e4f22be9d3acc98789a530dfcdd1e
parent38d6640ba55e52a4ae23059164660075c3d8e18a
[AMDGPU] Update isFMAFasterThanFMulAndFAdd assumptions

MAD/MAC is no longer always available.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D83207
llvm/lib/Target/AMDGPU/SIISelLowering.cpp