[PATCH] D78984: [X86] Handle more cases in combineAddOrSubToADCOrSBB.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: spatel, RKSimon.
Herald added subscribers: javed.absar, hiraditya.
Herald added a project: LLVM.

This adds support for

X + SETAE --> sbb X, -1
X - SETAE --> adc X, -1

Fixes PR45700


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78984

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/sbb.ll
  llvm/test/CodeGen/X86/scheduler-backtracking.ll
  llvm/test/CodeGen/X86/select.ll

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