[llvm-branch-commits] [llvm] [GISel] Combine compare of bitfield extracts or'd together. (PR #146055)

[Jay Foad via llvm-branch-commits]

================
@@ -140,3 +140,92 @@ bool CombinerHelper::matchCanonicalizeFCmp(const MachineInstr &MI,
 
   return false;
 }
+
+bool CombinerHelper::combineMergedBFXCompare(MachineInstr &MI) const {
+  const GICmp *Cmp = cast<GICmp>(&MI);
+
+  ICmpInst::Predicate CC = Cmp->getCond();
+  if (CC != CmpInst::ICMP_EQ && CC != CmpInst::ICMP_NE)
----------------
jayfoad wrote:

Use `CmpInst::isEquality`

https://github.com/llvm/llvm-project/pull/146055