[clang] [llvm] [Clang][LLVM] Implement multi-multi vectors MOP4{A/S} (PR #129230)

[via llvm-commits]

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@@ -289,6 +289,114 @@ multiclass ZAFPOuterProd<string n_suffix> {
 defm SVMOPA : ZAFPOuterProd<"mopa">;
 defm SVMOPS : ZAFPOuterProd<"mops">;
 
+////////////////////////////////////////////////////////////////////////////////
+// SME2 - FMOP4A, FMOP4S, BFMOP4A, BFMOP4S
+
+multiclass MOP4<string mode, string za, string t, string i, list<ImmCheck> checks> {
+  def _1x1 : Inst<"svmop4" # mode # "[_1x1]_" # za # "[_{d}_{d}]", "vidd", t, MergeNone, i # "_1x1", [IsInOutZA, IsStreaming], checks>;
+  def _1x2 : Inst<"svmop4" # mode # "[_1x2]_" # za # "[_{d}_{d}]", "vid2", t, MergeNone, i # "_1x2", [IsInOutZA, IsStreaming], checks>;
+  def _2x1 : Inst<"svmop4" # mode # "[_2x1]_" # za # "[_{d}_{d}]", "vi2d", t, MergeNone, i # "_2x1", [IsInOutZA, IsStreaming], checks>;
+  def _2x2 : Inst<"svmop4" # mode # "[_2x2]_" # za # "[_{d}_{d}]", "vi22", t, MergeNone, i # "_2x2", [IsInOutZA, IsStreaming], checks>;
+}
+
+let SMETargetGuard = "sme2,sme-mop4" in {
+  defm SVFMOP4A_HtoS  : MOP4<"a", "za32", "hb", "aarch64_sme_mop4a_wide", [ImmCheck<0, ImmCheck0_3>]>;
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CarolineConcatto wrote:

I believe this patch will be rebased, when this is done the _ at the should be gone

https://github.com/llvm/llvm-project/pull/129230