https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106782
Bug ID: 106782
Summary: dump_printf_loc has incorrect format attribute
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
Target Milestone: ---
We don't perform -Wformat checks on dump_printf_loc calls because it pretends
it has a va_list argument instead of ... at the end:
--- gcc/dumpfile.h.jj 2022-01-18 11:58:59.501983213 +0100
+++ gcc/dumpfile.h 2022-08-31 10:36:25.789850981 +0200
@@ -574,7 +574,7 @@ extern void dump_printf (const dump_meta
extern void dump_printf_loc (const dump_metadata_t &, const
dump_user_location_t &,
const char *, ...)
- ATTRIBUTE_GCC_DUMP_PRINTF (3, 0);
+ ATTRIBUTE_GCC_DUMP_PRINTF (3, 4);
extern void dump_function (int phase, tree fn);
extern void dump_basic_block (dump_flags_t, basic_block, int);
extern void dump_generic_expr_loc (const dump_metadata_t &,
Unfortunately this patch results in tons of warnings that should be fixed one
way or another. E.g.:
../../gcc/tree-vect-slp.cc: In function ‘void vect_print_slp_tree(dump_flags_t,
dump_location_t, slp_tree)’:
../../gcc/tree-vect-slp.cc:2528:49: warning: format ‘%p’ expects argument of
type ‘void*’, but argument 5 has type ‘slp_tree’ {aka ‘_slp_tree*’} [-Wformat=]
2528 | dump_printf_loc (metadata, user_loc, "node%s %p (max_nunits=%u,
refcnt=%u)",
| ~^
| |
| void*
......
2533 | : ""), node,
| ~~~~
| |
| slp_tree {aka _slp_tree*}
../../gcc/tree-vect-slp.cc:2528:64: warning: format ‘%u’ expects argument of
type ‘unsigned int’, but argument 6 has type ‘long int’ [-Wformat=]
2528 | dump_printf_loc (metadata, user_loc, "node%s %p (max_nunits=%u,
refcnt=%u)",
| ~^
| |
| unsigned
int
| %lu
......
2534 | estimated_poly_value (node->max_nunits),
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| long int
