[PATCH] D109201: [AMDGPU] Process any power of 2 in optimizeCompareInstr
Matt Arsenault via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Sep 2 16:55:27 PDT 2021
arsenm accepted this revision.
arsenm added inline comments.
This revision is now accepted and ready to land.
================
Comment at: llvm/lib/Target/AMDGPU/SIInstrInfo.cpp:8028
+ // s_cmp_eq_u32 (s_and_b32 $src, 2^n), 2^n => s_and_b32 $src, 2^n
+ // s_cmp_eq_i32 (s_and_b32 $src, 2^n), 2^n => s_and_b32 $src, 2^n
+ // s_cmp_ge_u32 (s_and_b32 $src, 2^n), 2^n => s_and_b32 $src, 2^n
----------------
1 << n instead of 2^n?
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D109201/new/
https://reviews.llvm.org/D109201
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