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re PR c/79758 (ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in store_parm_decls_oldstyle, at c/c-decl.c:8973)

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PR c/79758
	* c-decl.c (store_parm_decls_oldstyle): Check if the element of
	current_function_prototype_arg_types is error_mark_node.  Fix
	formatting.  Use TREE_VALUE instead of TREE_TYPE.

	* gcc.dg/noncompile/pr79758.c: New test.

From-SVN: r245886
This commit is contained in:
Marek Polacek 2017-03-03 22:19:24 +00:00 committed by Marek Polacek
parent 79c9b7a84f
commit 7f5a7d7848
4 changed files with 28 additions and 7 deletions
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7
gcc/c/ChangeLog
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@ -1,3 +1,10 @@
2017-03-03 Marek Polacek <polacek@redhat.com>
PR c/79758
* c-decl.c (store_parm_decls_oldstyle): Check if the element of
current_function_prototype_arg_types is error_mark_node. Fix
formatting. Use TREE_VALUE instead of TREE_TYPE.
2017-03-03 Jakub Jelinek <jakub@redhat.com>
PR c/79837

17
gcc/c/c-decl.c
View File

@ -8965,12 +8965,15 @@ store_parm_decls_oldstyle (tree fndecl, const struct c_arg_info *arg_info)
tree type;
for (parm = DECL_ARGUMENTS (fndecl),
type = current_function_prototype_arg_types;
parm || (type && TREE_VALUE (type) != error_mark_node
&& (TYPE_MAIN_VARIANT (TREE_VALUE (type)) != void_type_node));
parm || (type != NULL_TREE
&& TREE_VALUE (type) != error_mark_node
&& TYPE_MAIN_VARIANT (TREE_VALUE (type)) != void_type_node);
parm = DECL_CHAIN (parm), type = TREE_CHAIN (type))
{
if (parm == 0 || type == 0
|| TYPE_MAIN_VARIANT (TREE_VALUE (type)) == void_type_node)
if (parm == NULL_TREE
|| type == NULL_TREE
|| (TREE_VALUE (type) != error_mark_node
&& TYPE_MAIN_VARIANT (TREE_VALUE (type)) == void_type_node))
{
if (current_function_prototype_built_in)
warning_at (DECL_SOURCE_LOCATION (fndecl),
@ -8996,7 +8999,7 @@ store_parm_decls_oldstyle (tree fndecl, const struct c_arg_info *arg_info)
declared for the arg. ISO C says we take the unqualified
type for parameters declared with qualified type. */
if (TREE_TYPE (parm) != error_mark_node
&& TREE_TYPE (type) != error_mark_node
&& TREE_VALUE (type) != error_mark_node
&& ((TYPE_ATOMIC (DECL_ARG_TYPE (parm))
!= TYPE_ATOMIC (TREE_VALUE (type)))
|| !comptypes (TYPE_MAIN_VARIANT (DECL_ARG_TYPE (parm)),
@ -9016,8 +9019,8 @@ store_parm_decls_oldstyle (tree fndecl, const struct c_arg_info *arg_info)
if (targetm.calls.promote_prototypes (TREE_TYPE (current_function_decl))
&& INTEGRAL_TYPE_P (TREE_TYPE (parm))
&& TYPE_PRECISION (TREE_TYPE (parm))
< TYPE_PRECISION (integer_type_node))
&& (TYPE_PRECISION (TREE_TYPE (parm))
< TYPE_PRECISION (integer_type_node)))
DECL_ARG_TYPE (parm)
= c_type_promotes_to (TREE_TYPE (parm));

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2017-03-03 Marek Polacek <polacek@redhat.com>
PR c/79758
* gcc.dg/noncompile/pr79758.c: New test.
2017-03-03 Jakub Jelinek <jakub@redhat.com>
PR middle-end/79805

6
gcc/testsuite/gcc.dg/noncompile/pr79758.c Normal file
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@ -0,0 +1,6 @@
/* PR c/79758 */
/* { dg-do compile } */
void fn1 (int[a]) { }; /* { dg-error "undeclared here|parameter name omitted" } */
void fn1 (b) { }; /* { dg-error "redefinition" } */
/* { dg-warning "defaults to 'int'" "" { target *-*-* } .-1 } */