LU-JOHN f2991bf791 [AMDGPU] Convert 64-bit sra to 32-bit if shift amt >= 32 (#144421) ...

Use KnownBits to convert 64-bit sra to 32-bit sra.

Scaled-down alive2 verification with 16/8-bit types:
https://alive2.llvm.org/ce/z/LamASk

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Signed-off-by: John Lu <John.Lu@amd.com>

2025-06-26 14:22:59 -04:00

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