[AArch64][SME2] Add multi-vector SEL (x2, x4) ACLE builtins & intrins…

…ics (llvm#73188) Add multi-vector SEL (x2, x4) ACLE builtins & intrinsics Patch by: David Sherwood <david.sherwood@arm.com>
pratlucas · Nov 30, 2023 · 0ef013c · 0ef013c
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diff --git a/clang/include/clang/Basic/arm_sve.td b/clang/include/clang/Basic/arm_sve.td
@@ -2115,6 +2115,10 @@ let TargetGuard = "sme2" in {
 // == ADD (vectors) ==
   def SVADD_SINGLE_X2 : SInst<"svadd[_single_{d}_x2]", "22d", "cUcsUsiUilUl", MergeNone, "aarch64_sve_add_single_x2", [IsStreaming], []>;
   def SVADD_SINGLE_X4 : SInst<"svadd[_single_{d}_x4]", "44d", "cUcsUsiUilUl", MergeNone, "aarch64_sve_add_single_x4", [IsStreaming], []>;
+
+  // 2-way and 4-way selects
+  def SVSEL_X2  : SInst<"svsel[_{d}_x2]", "2}22", "cUcsUsiUilUlbhfd", MergeNone, "aarch64_sve_sel_x2", [IsStreaming], []>;
+  def SVSEL_X4  : SInst<"svsel[_{d}_x4]", "4}44", "cUcsUsiUilUlbhfd", MergeNone, "aarch64_sve_sel_x4", [IsStreaming], []>;
 }
 
 let TargetGuard = "sve2p1" in {