[PATCH] D110867: X86InstrInfo: Support immediates that are +1/-1 different in optimizeCompareInstr

Simon Pilgrim via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Dec 10 09:22:59 PST 2021


RKSimon added a comment.

In D110867#3185369 <https://reviews.llvm.org/D110867#3185369>, @MatzeB wrote:

> Thanks for investigating and root-causing! I’m currently on vacation, please revert in the meantime.

There appears to be one change:
https://gcc.godbolt.org/z/TfKrs8M18

llvm13:

  shlq $32, %rax
  testq %rax, %rax
  je .LBB5_11
  jle .LBB5_11

(current) trunk:

  shlq $32, %rax
  je .LBB5_11
  jle .LBB5_11


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D110867/new/

https://reviews.llvm.org/D110867



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