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Provide hint for misspelled -fdump-foo options.

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gcc/ChangeLog:

2020-03-19  Martin Liska  <mliska@suse.cz>

	* dumpfile.c (dump_switch_p): Change return type
	and print option suggestion.
	* dumpfile.h: Change return type.
	* opts-global.c (handle_common_deferred_options):
	Move error into dump_switch_p function.

gcc/testsuite/ChangeLog:

2020-03-19  Martin Liska  <mliska@suse.cz>

	* gcc.dg/spellcheck-options-22.c: New test.
This commit is contained in:
Martin Liska 2020-03-19 11:58:53 +01:00
parent d214842416
commit 48c041033e
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4 changed files with 21 additions and 6 deletions
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19
gcc/dumpfile.c
View File

@ -39,6 +39,7 @@ along with GCC; see the file COPYING3. If not see
#include "tree-pass.h" /* for "current_pass". */
#include "optinfo-emit-json.h"
#include "stringpool.h" /* for get_identifier. */
#include "spellcheck.h"
/* If non-NULL, return one past-the-end of the matching SUBPART of
the WHOLE string. */
@ -1874,7 +1875,7 @@ dump_switch_p_1 (const char *arg, struct dump_file_info *dfi, bool doglob)
return 1;
}
int
void
gcc::dump_manager::
dump_switch_p (const char *arg)
{
@ -1896,8 +1897,20 @@ dump_switch_p (const char *arg)
for (i = 0; i < m_extra_dump_files_in_use; i++)
any |= dump_switch_p_1 (arg, &m_extra_dump_files[i], true);
return any;
if (!any)
{
auto_vec<const char *> candidates;
for (size_t i = TDI_none + 1; i != TDI_end; i++)
candidates.safe_push (dump_files[i].swtch);
for (size_t i = 0; i < m_extra_dump_files_in_use; i++)
candidates.safe_push (m_extra_dump_files[i].swtch);
const char *hint = find_closest_string (arg, &candidates);
if (hint)
error ("unrecognized command-line option %<-fdump-%s%>; "
"did you mean %<-fdump-%s%>?", arg, hint);
else
error ("unrecognized command-line option %<-fdump-%s%>", arg);
}
}
/* Parse ARG as a -fopt-info switch and store flags, optgroup_flags

2
gcc/dumpfile.h
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@ -691,7 +691,7 @@ public:
char *
get_dump_file_name (struct dump_file_info *dfi, int part = -1) const;
int
void
dump_switch_p (const char *arg);
/* Start a dump for PHASE. Store user-supplied dump flags in

3
gcc/opts-global.c
View File

@ -385,8 +385,7 @@ handle_common_deferred_options (void)
break;
case OPT_fdump_:
if (!g->get_dumps ()->dump_switch_p (opt->arg))
error ("unrecognized command-line option %<-fdump-%s%>", opt->arg);
g->get_dumps ()->dump_switch_p (opt->arg);
break;
case OPT_fopt_info_:

3
gcc/testsuite/gcc.dg/spellcheck-options-22.c Normal file
View File

@ -0,0 +1,3 @@
/* { dg-do compile } */
/* { dg-options "-fdump-ipa-ynline" } */
/* { dg-error "unrecognized command-line option '-fdump-ipa-ynline'; did you mean '-fdump-ipa-inline'?" "" { target *-*-* } 0 } */