Luke Lau 64106581b9 [Constant] Make Constant::getSplatValue return poison on poison (#141870) ...

This is a follow up from #141845. 

TargetTransformInfo::getOperandInfo needs to be updated to check for
undef values as otherwise a splat is considered a constant, and some
RISC-V cost model tests will start adding a cost to materialize the
constant.

2025-05-29 15:01:28 +01:00

56 KiB

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