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Add sorry_at diagnostic function.

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The plain "sorry" diagnostic only gives the "current" location, which is
typically the last line of the function or translation unit by time we get to
the back end.

GCN uses "sorry" to report unsupported language features, such as static
constructors, so it's useful to have a "sorry_at" variant.

This patch implements "sorry_at" according to the pattern of the other "at"
variants.

2018-09-11  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* diagnostic-core.h (sorry_at): New prototype.
	* diagnostic.c (sorry_at): New function.

From-SVN: r264204
This commit is contained in:
Andrew Stubbs 2018-09-11 10:26:57 +00:00 committed by Andrew Stubbs
parent 075cdac363
commit ad172f720d
3 changed files with 18 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2018-09-11 Andrew Stubbs <ams@codesourcery.com>
* diagnostic-core.h (sorry_at): New prototype.
* diagnostic.c (sorry_at): New function.
2018-09-11 Aldy Hernandez <aldyh@redhat.com>
* tree-vrp (extract_range_from_binary_expr_1): Treat all divisions

1
gcc/diagnostic-core.h
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@ -96,6 +96,7 @@ extern bool permerror (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern bool permerror (rich_location *, const char *,
...) ATTRIBUTE_GCC_DIAG(2,3);
extern void sorry (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
extern void sorry_at (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern void inform (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern void inform (rich_location *, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern void inform_n (location_t, unsigned HOST_WIDE_INT, const char *,

12
gcc/diagnostic.c
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@ -1443,6 +1443,18 @@ sorry (const char *gmsgid, ...)
va_end (ap);
}
/* Same as above, but use location LOC instead of input_location. */
void
sorry_at (location_t loc, const char *gmsgid, ...)
{
auto_diagnostic_group d;
va_list ap;
va_start (ap, gmsgid);
rich_location richloc (line_table, loc);
diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_SORRY);
va_end (ap);
}
/* Return true if an error or a "sorry" has been seen. Various
processing is disabled after errors. */
bool