[clang] [llvm] [AArch64] Add CodeGen support for scalar FEAT_CPA (PR #105669)

[Rodolfo Wottrich via cfe-commits]

================
@@ -10716,6 +10716,21 @@ let Predicates = [HasCPA] in {
   // Scalar multiply-add/subtract
   def MADDPT : MulAccumCPA<0, "maddpt">;
   def MSUBPT : MulAccumCPA<1, "msubpt">;
+
+  def : Pat<(ptradd GPR64sp:$Rn, GPR64sp:$Rm),
+            (ADDPT_shift GPR64sp:$Rn, GPR64sp:$Rm, (i32 0))>;
+  def : Pat<(ptradd GPR64sp:$Rn, (shl GPR64sp:$Rm, (i64 imm0_7:$imm))),
+            (ADDPT_shift GPR64sp:$Rn, GPR64sp:$Rm,
+                         (i32 (trunc_imm imm0_7:$imm)))>;
----------------
rgwott wrote:

Done.

https://github.com/llvm/llvm-project/pull/105669
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