Stanislav Mekhanoshin 23db8e4b43 [AMDGPU] Use v_mad_u64_u32 for IMAD32 ...

Nic Curtis done the experiments to prove it is faster than a
separate mul and add.

Fixes: SWDEV-332806

Differential Revision: https://reviews.llvm.org/D127253

2022-06-09 11:39:49 -07:00

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