tmp: add dg-lto-error

Signed-off-by: Luis Silva <[email protected]>

Author: luismgsilva

gcc/testsuite/gcc.target/riscv/apex/arcv-apex-lto-err1_0.c

@@ -0,0 +1,16 @@
+/* { dg-lto-do link } */
+/* { dg-lto-options { { -flto -O2 } } } */
+
+int apex_conflict (int, int);
+#pragma intrinsic (apex_conflict, "conflict", 50, "XS")
+
+extern int use_conflict (int, int);
+
+int
+main (void)
+{
+  return use_conflict (5, 10);
+}
+
+/* { dg-lto-warning "APEX builtin 'apex_conflict' already registered with different opcode: 0x32 vs 0x33" "" { target *-*-* } 0 } */
+/* { dg-lto-error "APEX builtin 'apex_conflict' has conflicting definitions across compilation units" "" { target *-*-* } 0 } */

gcc/testsuite/gcc.target/riscv/apex/arcv-apex-lto-err1_1.c

@@ -0,0 +1,10 @@
+
+int apex_conflict (int, int);
+#pragma intrinsic (apex_conflict, "conflict", 51, "XS")  /* Different opcode: 51 vs 50 */
+
+int
+use_conflict (int a, int b)
+{
+  return apex_conflict (a, b);
+}
+

gcc/testsuite/lib/lto.exp

@@ -407,8 +407,8 @@ proc lto-can-handle-directive { op } {
     # A list of directives to recognize, and a list of directives
     # to remap them to.
     # For example, "dg-lto-warning" is implemented by calling "dg-warning".
-    set directives { dg-lto-warning dg-lto-message dg-lto-note }
-    set remapped_directives { dg-warning dg-message dg-note }
+    set directives { dg-lto-warning dg-lto-message dg-lto-note dg-lto-error }
+    set remapped_directives { dg-warning dg-message dg-note dg-error }
 
     set idx [lsearch -exact $directives $cmd]
     if { $idx != -1 } {