Changpeng Fang 26b0bef192 AMDGPU: Use pattern to select instruction for intrinsic llvm.fptrunc.round (#105761) ...

Use GCNPat instead of Custom Lowering to select instructions for
intrinsic llvm.fptrunc.round. "SupportedRoundMode : TImmLeaf" is used as
a predicate to select only when the rounding mode is supported.
"as_hw_round_mode : SDNodeXForm" is developed to translate the round
modes to the corresponding ones that hardware recognizes.

2024-08-29 11:43:58 -07:00

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