Matt Arsenault db9252b115
DAG: Call SimplifyDemandedBits on fcopysign sign value (#97151)
Math library code has quite a few places with complex bit
logic that are ultimately fed into a copysign. This helps
avoid some regressions in a future patch.

This assumes the position in the float type, which should
at least be valid for IEEE types. Not sure if we need to guard
against ppc_fp128 or anything else weird.

There appears to be some value in simplifying the value operand
as well, but I'll address that separately.
2024-07-01 12:19:17 +02:00
..
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