Hi.
The following is attempt to fix the PR. Idea is such that
all non-driver Common options that are also used in context
of a languages should not be printed in --help=common. An
exception would be an option that will be included in all languages.
Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
Ready to be installed?
Thanks,
Martin
gcc/ChangeLog:
2020-01-23 Martin Liska <mli...@suse.cz>
PR driver/91220
* opts.c (print_filtered_help): Exclude language-specific
options from --help=common unless enabled in all FEs.
---
gcc/opts.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/gcc/opts.c b/gcc/opts.c
index 3b2cc854af1..7affeb41a96 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -1285,6 +1285,14 @@ print_filtered_help (unsigned int include_flags,
| CL_COMMON | CL_TARGET)) == 0)
continue;
+ /* If an option contains a language specification,
+ exclude it from common unless all languages are present. */
+ if ((include_flags & CL_COMMON)
+ && !(option->flags & CL_DRIVER)
+ && (option->flags & CL_LANG_ALL)
+ && (option->flags & CL_LANG_ALL) != CL_LANG_ALL)
+ continue;
+
found = true;
/* Skip switches that have already been printed. */
if (opts->x_help_printed[i])
