[PATCH] D112634: [InstCombine] canonicalize icmp with trunc op into mask and cmp, part 2

[Sanjay Patel via Phabricator via llvm-commits]

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