[PATCH] D112634: [InstCombine] canonicalize icmp with trunc op into mask and cmp, part 2
Sanjay Patel via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Dec 5 13:14:27 PST 2022
spatel added a comment.
In D112634#3966800 <https://reviews.llvm.org/D112634#3966800>, @spatel wrote:
> Yes, we can fix this up at some point in codegen/isel. For any mask+cmp of an i64/i32/i16 try to convert to a signbit test of a smaller power-of-2 type to avoid using a constant in the test instruction?
Proposal to do this target-independently (but using target hooks to limit it):
https://reviews.llvm.org/D139363
Repository:
rG LLVM Github Monorepo
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https://reviews.llvm.org/D112634/new/
https://reviews.llvm.org/D112634
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