The gcc.dg/noncompile/pr79758.c testcase prints
pr79758.c:5:6: error: redefinition of 'fn1'
'error_mark' not supported by
direct_abstract_declarator)'/home/rguenther/src/gcc3/gcc/testsuite/gcc.dg/noncompile/pr79758.c:4:6:
note: previous definition of 'fn1' with type
which shows a) re-entry of pp_printf via pp_unsupported_tree and b) a
bogus diagnostic. The following handles ERROR_MARK in
direct_abstract_declarator, yielding in the better
/home/rguenther/src/gcc3/gcc/testsuite/gcc.dg/noncompile/pr79758.c:5:6: error:
redefinition of 'fn1'
/home/rguenther/src/gcc3/gcc/testsuite/gcc.dg/noncompile/pr79758.c:4:6: note:
previous definition of 'fn1' with type 'void(<type-error>)'
but still maybe not perfect.
Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
OK for trunk? GCC 10 doesn't exhibit this issue since it doesn't
print the 'with type ...' part.
2021-03-04 Richard Biener <rguent...@suse.de>
gcc/c-family/
* c-pretty-print.c (c_pretty_printer::direct_abstract_declarator):
Handle ERROR_MARK.
---
gcc/c-family/c-pretty-print.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/c-family/c-pretty-print.c b/gcc/c-family/c-pretty-print.c
index 2095d4badf7..a987da46d6d 100644
--- a/gcc/c-family/c-pretty-print.c
+++ b/gcc/c-family/c-pretty-print.c
@@ -676,6 +676,7 @@ c_pretty_printer::direct_abstract_declarator (tree t)
case VECTOR_TYPE:
case COMPLEX_TYPE:
case TYPE_DECL:
+ case ERROR_MARK:
break;
default:
--
2.26.2
