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Handle ERROR_MARK in direct_abstract_declarator

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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.

2021-03-04  Richard Biener  <rguenther@suse.de>

gcc/c-family/
	* c-pretty-print.c (c_pretty_printer::direct_abstract_declarator):
	Handle ERROR_MARK.
This commit is contained in:
Richard Biener 2021-03-04 13:31:52 +01:00
parent 6a8fc0c31a
commit 87dc3d0d36
1 changed files with 1 additions and 0 deletions
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gcc/c-family/c-pretty-print.c
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@ -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: