[mono] Remove Vector128 checks for amd64 APIs (#77534)

* Remove Vector128 checks for amd64 APIs

* refactor emit_sum_vector (amd64)

src/mono/mono/mini/simd-intrinsics.c

@@ -582,12 +582,8 @@ static const int fast_log2 [] = { -1, -1, 1, -1, 2, -1, -1, -1, 3 };
 static MonoInst*
 emit_sum_vector (MonoCompile *cfg, MonoType *vector_type, MonoTypeEnum element_type, MonoInst *arg)
 {
-	MonoClass *arg_class = mono_class_from_mono_type_internal (vector_type);
-	int size = mono_class_value_size (arg_class, NULL);
-	if (size != 16) 		// Works only with Vector128
-		return NULL;
-
 	MonoClass *vector_class = mono_class_from_mono_type_internal (vector_type);
+
 	int instc0 = -1;
 	switch (element_type) {
 	case MONO_TYPE_R4:
@@ -639,12 +635,13 @@ emit_sum_vector (MonoCompile *cfg, MonoType *vector_type, MonoTypeEnum element_t
 	if (!is_SIMD_feature_supported (cfg, feature))
 		return NULL;	
 
-	MonoType *etype = mono_class_get_context (arg_class)->class_inst->type_argv [0];
+	int vector_size = mono_class_value_size (vector_class, NULL);
+	MonoType *etype = mono_class_get_context (vector_class)->class_inst->type_argv [0];
 	int elem_size = mono_class_value_size (mono_class_from_mono_type_internal (etype), NULL);
-	int num_elems = size / elem_size;
+	int num_elems = vector_size / elem_size;
 	int num_rounds = fast_log2[num_elems];
 
-	MonoInst *tmp = emit_xzero (cfg, arg_class);
+	MonoInst *tmp = emit_xzero (cfg, vector_class);
 	MonoInst *ins = arg;
 	// HorizontalAdds over vector log2(num_elems) times
 	for (int i = 0; i < num_rounds; ++i) {
@@ -1150,10 +1147,6 @@ emit_sri_vector (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsi
 		return emit_simd_ins_for_sig (cfg, klass, OP_XOP_OVR_X_X, iid, arg0_type, fsig, args);
 #elif defined(TARGET_AMD64)
 		MonoClass *arg_class = mono_class_from_mono_type_internal (fsig->params [0]);
-		int size = mono_class_value_size (arg_class, NULL);
-		if (size != 16) 		// Works only with Vector128
-			return NULL;
-
 		if (type_enum_is_float(arg0_type)) {
 			// args [0] & ~vector(-0.0)
 			MonoInst *zero = emit_xzero(cfg, arg_class);	// 0.0
@@ -1186,11 +1179,6 @@ emit_sri_vector (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsi
 #ifdef TARGET_ARM64
 		return emit_simd_ins_for_sig (cfg, klass, OP_ARM64_BIC, -1, arg0_type, fsig, args);
 #elif defined(TARGET_AMD64)
-		MonoClass* arg_class = mono_class_from_mono_type_internal (fsig->params [0]);
-		int size = mono_class_value_size (arg_class, NULL);
-		if (size != 16) 		// Works only with Vector128
-			return NULL;
-
 		/* Swap lhs and rhs because Vector128 needs lhs & !rhs
 		   whereas SSE2 does !lhs & rhs */
 		MonoInst *tmp = args[0];
@@ -1225,11 +1213,6 @@ emit_sri_vector (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsi
 		int ceil_or_floor = id == SN_Ceiling ? INTRINS_AARCH64_ADV_SIMD_FRINTP : INTRINS_AARCH64_ADV_SIMD_FRINTM;
 		return emit_simd_ins_for_sig (cfg, klass, OP_XOP_OVR_X_X, ceil_or_floor, arg0_type, fsig, args);
 #elif defined(TARGET_AMD64)
-		MonoClass* arg_class = mono_class_from_mono_type_internal (fsig->params [0]);
-		int size = mono_class_value_size (arg_class, NULL);
-		if (size != 16) 	// Supported only on Vector128
-			return NULL;
-
 		if (!is_SIMD_feature_supported (cfg, MONO_CPU_X86_SSE41))
 			return NULL;
 
@@ -1335,11 +1318,6 @@ emit_sri_vector (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsi
 
 		return emit_sum_vector (cfg, fsig->params [0], arg0_type, pairwise_multiply);
 #elif defined(TARGET_AMD64)
-		MonoClass *arg_class = mono_class_from_mono_type_internal (fsig->params [0]);
-		int size = mono_class_value_size (arg_class, NULL);
-		if (size != 16) 		// Works only with Vector128
-			return NULL;
-
 		int instc =-1;
 		if (type_enum_is_float (arg0_type)) {
 			if (is_SIMD_feature_supported (cfg, MONO_CPU_X86_SSE41)) {
@@ -1609,11 +1587,6 @@ emit_sri_vector (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsi
 #ifdef TARGET_ARM64
 		return emit_simd_ins_for_sig (cfg, klass, OP_XOP_OVR_X_X, INTRINS_AARCH64_ADV_SIMD_FSQRT, arg0_type, fsig, args);
 #elif defined(TARGET_AMD64)
-		MonoClass *arg_class = mono_class_from_mono_type_internal (fsig->params [0]);
-		int size = mono_class_value_size (arg_class, NULL);
-		if (size != 16) 		// Only works with Vector128
-			return NULL;
-
 		int instc0 = arg0_type == MONO_TYPE_R4 ? INTRINS_SSE_SQRT_PS : INTRINS_SSE_SQRT_PD;
 
 		return emit_simd_ins_for_sig (cfg, klass, OP_XOP_X_X, instc0, arg0_type, fsig, args);