Tidy up for roll forward

Files Changed:

  * config/riscv/contraints.md: Re-add constraint D03.
  * testsuite/gcc.target/riscv/cv-alu-fail-compile.c: Change failure
    from warning to error.

gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile.c

@@ -5,28 +5,28 @@
 extern int d;
 
 int
-foo(int a, int b, int c)
+foo (int a, int b, int c)
 {
-    d += __builtin_riscv_cv_alu_slet (a, b); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_sletu (a, b);  /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_addN (a, b, 31);  /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_addRN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_adduN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_adduRN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_clip (a, 31); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_clipu (a, 35); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_extbs (a); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_extbz (a); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_exths (a); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_exthz (a); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_min (a, b); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_minu (a, b); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_max (a, b); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_maxu (a, b); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_subN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_subRN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_subuN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
-    d += __builtin_riscv_cv_alu_subuRN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_slet (a, b); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_sletu (a, b);  /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_addN (a, b, 31);  /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_addRN (a, b, 31); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_adduN (a, b, 31); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_adduRN (a, b, 31); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_clip (a, 31); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_clipu (a, 35); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_extbs (a); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_extbz (a); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_exths (a); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_exthz (a); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_min (a, b); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_minu (a, b); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_max (a, b); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_maxu (a, b); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_subN (a, b, 31); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_subRN (a, b, 31); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_subuN (a, b, 31); /* { dg-error "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_subuRN (a, b, 31); /* { dg-error "implicit declaration of function" } */
 
     return d;
 }