fixup! [RISCV] Support XSfmm C intrinsics

Author: 4vtomat

clang/lib/Sema/SemaRISCV.cpp

@@ -729,6 +729,8 @@ bool SemaRISCV::CheckBuiltinFunctionCall(const TargetInfo &TI,
     return SemaRef.BuiltinConstantArgRange(TheCall, 0, 0, 15) ||
            SemaRef.BuiltinConstantArgMultiple(TheCall, 0, 4);
   }
+  case RISCVVector::BI__builtin_rvv_sf_vtzero_t:
+    return SemaRef.BuiltinConstantArgRange(TheCall, 0, 0, 15);
   case RISCVVector::BI__builtin_rvv_vget_v: {
     ASTContext::BuiltinVectorTypeInfo ResVecInfo =
         Context.getBuiltinVectorTypeInfo(cast<BuiltinType>(

clang/test/Sema/sifive-xsfmm.c

@@ -10,8 +10,13 @@ void test(vfloat32m8_t arg0, vuint8m8_t arg1) {
   __riscv_sf_mm_f_f_w1(4, arg0, arg0, 1, 2, 3);
   __riscv_sf_mm_e5m2_e4m3(8, arg1, arg1, 1, 2, 3);
   __riscv_sf_mm_u_u(12, arg1, arg1, 1, 2, 3);
+  __riscv_sf_vtzero_t_e8w1(0, 0, 0);
 
   __riscv_sf_mm_f_f_w1(5, arg0, arg0, 1, 2, 3); /* expected-error {{argument should be a multiple of 4}} */
   __riscv_sf_mm_e5m2_e4m3(7, arg1, arg1, 1, 2, 3); /* expected-error {{argument should be a multiple of 4}} */
   __riscv_sf_mm_u_u(15, arg1, arg1, 1, 2, 3); /* expected-error {{argument should be a multiple of 4}} */
+  __riscv_sf_mm_f_f_w1(16, arg0, arg0, 1, 2, 3); /* expected-error {{argument value 16 is outside the valid range [0, 15]}} */
+  __riscv_sf_mm_e5m2_e4m3(20, arg1, arg1, 1, 2, 3); /* expected-error {{argument value 20 is outside the valid range [0, 15]}} */
+  __riscv_sf_mm_u_u(24, arg1, arg1, 1, 2, 3); /* expected-error {{argument value 24 is outside the valid range [0, 15]}} */
+  __riscv_sf_vtzero_t_e8w1(18, 0, 0); /* expected-error {{argument value 18 is outside the valid range [0, 15]}} */
 }