[clang] [llvm] [AArch64][VecLib] Add libmvec support for AArch64 targets (PR #143696)

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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions c,cpp -- clang/lib/Driver/ToolChains/Clang.cpp clang/test/Driver/fveclib.c llvm/lib/Analysis/TargetLibraryInfo.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp
index 46efa682e..8854387f7 100644
--- a/llvm/lib/Analysis/TargetLibraryInfo.cpp
+++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp
@@ -1302,16 +1302,24 @@ static const VecDesc VecFuncs_LIBMVEC_X86[] = {
 static const VecDesc VecFuncs_LIBMVEC_AARCH64_VF2[] = {
 #define TLI_DEFINE_LIBMVEC_AARCH64_VF2_VECFUNCS
 #define TLI_DEFINE_VECFUNC(SCAL, VEC, VABI_PREFIX)                             \
-  {SCAL, VEC, /* VF = */ FIXED(2), /* MASK = */ false, VABI_PREFIX,            \
-    /* CC = */ CallingConv::AArch64_VectorCall},
+  {SCAL,                                                                       \
+   VEC,                                                                        \
+   /* VF = */ FIXED(2),                                                        \
+   /* MASK = */ false,                                                         \
+   VABI_PREFIX,                                                                \
+   /* CC = */ CallingConv::AArch64_VectorCall},
 #include "llvm/Analysis/VecFuncs.def"
 #undef TLI_DEFINE_LIBMVEC_AARCH64_VF2_VECFUNCS
 };
 static const VecDesc VecFuncs_LIBMVEC_AARCH64_VF4[] = {
 #define TLI_DEFINE_LIBMVEC_AARCH64_VF4_VECFUNCS
 #define TLI_DEFINE_VECFUNC(SCAL, VEC, VABI_PREFIX)                             \
-  {SCAL, VEC, /* VF = */ FIXED(4), /* MASK = */ false, VABI_PREFIX,            \
-    /* CC = */ CallingConv::AArch64_VectorCall},
+  {SCAL,                                                                       \
+   VEC,                                                                        \
+   /* VF = */ FIXED(4),                                                        \
+   /* MASK = */ false,                                                         \
+   VABI_PREFIX,                                                                \
+   /* CC = */ CallingConv::AArch64_VectorCall},
 #include "llvm/Analysis/VecFuncs.def"
 #undef TLI_DEFINE_LIBMVEC_AARCH64_VF4_VECFUNCS
 };

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https://github.com/llvm/llvm-project/pull/143696