Pierre van Houtryve 4e63e0457c
[AMDGPU] Canonicalize G_ZEXT of the shift amount in RegBankCombiner (#131792)
Canonicalize it to a G_AND instead so that ISel patterns can pick it
up and ignore it, as the shift instructions only read low bits.
G_ZEXT would be lowered to a v/s_and anyway in most cases.

I'm also looking at making a DAG version of this in a separate patch.
2025-05-14 10:48:51 +02:00
..