[PATCH] D95432: AMDGPU/GlobalISel: Combine uniform icmp with one use
Jay Foad via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Feb 2 04:09:29 PST 2021
foad added a comment.
I don't understand why this needs to be AMDGPU-specific, and why it only works for uniform values, and why it only works inside G_SELECT and G_BRCOND.
Can't you have a generic combine that simplifies (zext (trunc x)) -> x if the types match and the high bits of x are known to be zero?
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D95432/new/
https://reviews.llvm.org/D95432
More information about the llvm-commits
mailing list