================
@@ -10382,6 +10382,26 @@ let Predicates = [HasCPA] in {
// Scalar multiply-add/subtract
def MADDPT : MulAccumCPA<0, "maddpt">;
def MSUBPT : MulAccumCPA<1, "msubpt">;
+
+ // Rules to use CPA instructions in pointer arithmetic patterns which are not
+ // folded into loads/stores. The AddedComplexity serves to help supersede
+ // other simpler (non-CPA) patterns and make sure CPA is used instead.
+ let AddedComplexity = 20 in {
----------------
rgwott wrote:
That is a remainder from the previous PR, in which SelectionDAG did not
differentiate between ptr and integer arithmetic (which was wrong), and this
made instr selection "correct". I removed it now, well spotted.
https://github.com/llvm/llvm-project/pull/105669
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