[clang] [Clang][SME2] Add multi-vector add/sub builtins (PR #69725)

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``````````bash
git-clang-format --diff 2ec7bba77bf573e2fb134c3f6ed10a8fcdde6fe7 93d7bac47d3a975ca93ded907a5ce5ee53f1a8ff -- clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_add.c clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_sub.c clang/lib/CodeGen/CGBuiltin.cpp clang/lib/CodeGen/CodeGenFunction.h clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st2-bfloat.c clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st2.c clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st3-bfloat.c clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st3.c clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st4-bfloat.c clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st4.c clang/utils/TableGen/SveEmitter.cpp
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``````````diff
diff --git a/clang/utils/TableGen/SveEmitter.cpp b/clang/utils/TableGen/SveEmitter.cpp
index 94ca89f091a0..debe76173ed2 100644
--- a/clang/utils/TableGen/SveEmitter.cpp
+++ b/clang/utils/TableGen/SveEmitter.cpp
@@ -1183,14 +1183,16 @@ void SVEEmitter::createCoreHeaderIntrinsics(raw_ostream &OS, ACLEKind Kind) {
   // - Architectural guard (i.e. does it require SVE2 or SVE2_AES)
   // - Class (is intrinsic overloaded or not)
   // - Intrinsic name
-  std::stable_sort(
-      Defs.begin(), Defs.end(), [](const std::unique_ptr<Intrinsic> &A,
-                                   const std::unique_ptr<Intrinsic> &B) {
-        auto ToTuple = [](const std::unique_ptr<Intrinsic> &I) {
-          return std::make_tuple(I->getGuard(), (unsigned)I->getClassKind(), I->getName());
-        };
-        return ToTuple(A) < ToTuple(B);
-      });
+  std::stable_sort(Defs.begin(), Defs.end(),
+                   [](const std::unique_ptr<Intrinsic> &A,
+                      const std::unique_ptr<Intrinsic> &B) {
+                     auto ToTuple = [](const std::unique_ptr<Intrinsic> &I) {
+                       return std::make_tuple(I->getGuard(),
+                                              (unsigned)I->getClassKind(),
+                                              I->getName());
+                     };
+                     return ToTuple(A) < ToTuple(B);
+                   });
 
   // Actually emit the intrinsic declarations.
   for (auto &I : Defs)

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https://github.com/llvm/llvm-project/pull/69725