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

[Paul Walker via llvm-commits]

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@@ -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
+};
+static const VecDesc VecFuncs_LIBMVEC_AARCH64_VFScalable[] = {
+#define TLI_DEFINE_LIBMVEC_AARCH64_SCALABLE_VECFUNCS
+#define TLI_DEFINE_VECFUNC(SCAL, VEC, VF, MASK, VABI_PREFIX)                   \
+  {SCAL, VEC, VF, MASK, VABI_PREFIX, /* CC = */ std::nullopt},
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paulwalker-arm wrote:

All the SVE functions are masked so you could just pass in `/* MASK = */ true`.

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