[Committed] S/390: Improve debug output for builtin matching

[Andreas Krebbel]

gcc/ChangeLog:

2019-03-25  Andreas Krebbel  <kreb...@linux.ibm.com>

        * config/s390/s390-c.c (s390_fn_types_compatible): Print the
        expected and found types with -mdebug during builtin matching.
---
 gcc/config/s390/s390-c.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gcc/config/s390/s390-c.c b/gcc/config/s390/s390-c.c
index aafe346e..fc9ad67 100644
--- a/gcc/config/s390/s390-c.c
+++ b/gcc/config/s390/s390-c.c
@@ -810,7 +810,13 @@ s390_fn_types_compatible (enum s390_builtin_ov_type_index 
typeindex,
 
     mismatch:
       if (TARGET_DEBUG_ARG)
-       fprintf (stderr, " mismatch in operand: %d\n", i + 1);
+       {
+         fprintf (stderr, " mismatch in operand: %d incoming: ", i + 1);
+         print_generic_expr (stderr, in_type, TDF_VOPS|TDF_MEMSYMS);
+         fprintf (stderr, " expected: ");
+         print_generic_expr (stderr, b_arg_type, TDF_VOPS|TDF_MEMSYMS);
+         fprintf (stderr, "\n");
+       }
       return INT_MAX;
     }
 
-- 
2.7.4