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

[Paul Walker via llvm-commits]

================
@@ -1299,6 +1299,30 @@ static const VecDesc VecFuncs_LIBMVEC_X86[] = {
 #undef TLI_DEFINE_LIBMVEC_X86_VECFUNCS
 };
 
+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},
+#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},
+#include "llvm/Analysis/VecFuncs.def"
+#undef TLI_DEFINE_LIBMVEC_AARCH64_VF4_VECFUNCS
+};
----------------
paulwalker-arm wrote:

Fair enough, in which case I suggest following the idiom we use for ArmPL.  I'm happy to circle back to see about fulfilling both ideals. @marykass-arm sorry about the code churn.

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