[arm64] Use CMN for cmp(a,sub(0,b)) only when checking equality/inequality.

src/compiler/arm64/instruction-selector-arm64.cc

Index: src/compiler/arm64/instruction-selector-arm64.cc
diff --git a/src/compiler/arm64/instruction-selector-arm64.cc b/src/compiler/arm64/instruction-selector-arm64.cc
index 4d48cb93c5f165f8b4ef4a8f5d2f86fac1de3b34..8af97b598ee4e079a1dfd045000b80379d563e1d 100644
--- a/src/compiler/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/arm64/instruction-selector-arm64.cc
@@ -2138,8 +2138,11 @@ void VisitWord32Compare(InstructionSelector* selector, Node* node,
       MaybeReplaceCmpZeroWithFlagSettingBinop(selector, &node, binop, &opcode,
                                               cond, cont, &immediate_mode);
     }
-  } else if (m.right().IsInt32Sub()) {
+  } else if (m.right().IsInt32Sub() && (cond == kEqual || cond == kNotEqual)) {
     // Select negated compare for comparisons with negated right input.
+    // Only do this for kEqual and kNotEqual, which do not depend on the
+    // C and V flags, as those flags will be different with CMN when the
+    // right-hand side of the original subtraction is INT_MIN.
     Node* sub = m.right().node();
     Int32BinopMatcher msub(sub);
     if (msub.left().Is(0)) {