Craig Topper f71a9e8bb7 [SelectionDAG][RISCV][PowerPC][X86] Use TargetConstant for immediates for ISD::PREFETCH. (#66601) ...

The intrinsic uses ImmArg so TargetConstant would be consistent
with how other intrinsics are handled.

This hides the constants from type legalization so we can remove
the promotion support.

isel patterns are updated accordingly.

2023-09-18 08:58:50 -07:00

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