LU-JOHN 5decab178f AMDGPU: Reduce shl64 to shl32 if shift range is [63-32] (#125574) ...

Reduce:

   DST = shl i64 X, Y

where Y is in the range [63-32] to:

   DST = [0, shl i32 X, (Y & 32)]


Alive2 analysis:

https://alive2.llvm.org/ce/z/w_u5je

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

2025-02-13 13:40:25 -06:00

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