[llvm] [ARM] Replace ABS and tABS machine nodes with custom lowering (PR #156717)

[via llvm-commits]

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@@ -14079,6 +14014,48 @@ static SDValue PerformSubCSINCCombine(SDNode *N, SelectionDAG &DAG) {
                      CSINC.getOperand(3));
 }
 
+static bool isNegatedInteger(SDValue Op) {
+  return Op.getOpcode() == ISD::SUB && isNullConstant(Op.getOperand(0));
+}
+
+static SDValue getNegatedInteger(SDValue Op, SelectionDAG &DAG) {
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AZero13 wrote:

Thank you!

https://github.com/llvm/llvm-project/pull/156717