Hi.
The patch is about proper error message for situations where
user give a wrong argument to -flto option.
Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
Ready to be installed?
Thanks,
Martin
gcc/ChangeLog:
2019-07-29 Martin Liska <mli...@suse.cz>
* opts.c (common_handle_option): Error for an invalid argument
to -flto=.
gcc/testsuite/ChangeLog:
2019-07-29 Martin Liska <mli...@suse.cz>
* gcc.dg/spellcheck-options-21.c: New test.
---
gcc/opts.c | 8 ++++++++
gcc/testsuite/gcc.dg/spellcheck-options-21.c | 3 +++
2 files changed, 11 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/spellcheck-options-21.c
diff --git a/gcc/opts.c b/gcc/opts.c
index 296f0f61802..3639edf4cd7 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -2821,6 +2821,14 @@ common_handle_option (struct gcc_options *opts,
opts->x_flag_lto = value ? "" : NULL;
break;
+ case OPT_flto_:
+ if (strcmp (arg, "none") != 0
+ && strcmp (arg, "jobserver") != 0
+ && atoi (arg) == 0)
+ error_at (loc,
+ "unrecognized argument to %<-flto=%> option: %qs", arg);
+ break;
+
case OPT_w:
dc->dc_inhibit_warnings = true;
break;
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-21.c b/gcc/testsuite/gcc.dg/spellcheck-options-21.c
new file mode 100644
index 00000000000..3e0e8a8ebaf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-21.c
@@ -0,0 +1,3 @@
+/* { dg-do compile } */
+/* { dg-options "-flto=sparta" } */
+/* { dg-error "unrecognized argument to '-flto=' option: 'sparta'" "" { target *-*-* } 0 } */
