On Fri, Jan 04, 2013 at 02:59:46AM +0100, Marek Polacek wrote:
> This patch clarifies the error message when using e.g. -Obar option,
> except non-negative numbers we accept some other levels too.
> Bootstrapped on x86_64-linux. Ok for trunk?
>
> 2013-01-04 Marek Polacek <pola...@redhat.com>
>
> PR middle-end/55859
> * opts.c (default_options_optimization): Clarify error message.
>
> --- gcc/opts.c.mp 2013-01-04 02:48:33.116785922 +0100
> +++ gcc/opts.c 2013-01-04 02:48:51.729870314 +0100
> @@ -1,7 +1,6 @@
> /* Command line option handling.
> Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
> - 2012
> -
> + 2012, 2013
> Free Software Foundation, Inc.
> Contributed by Neil Booth.
>
> @@ -543,7 +542,8 @@ default_options_optimization (struct gcc
> const int optimize_val = integral_argument (opt->arg);
> if (optimize_val == -1)
> error_at (loc,
> - "argument to %qs should be a non-negative integer",
> + "argument to %qs should be a non-negative integer, "
> + "'g', 's', or 'fast'",
> "-O");
I wonder what is the point of using %qs with a fixed string, and ' should be
probably replaced by %< and %>, so perhaps
"argument to %<-O%> should be a non-negative integer, "
"%<s%>, %<g%> or %<fast%>");
Jakub
