[gcc(refs/users/marxin/heads/PR103438-fix--help-Q-output)] Fix --help -Q output

[Martin Liska <marxin@gcc.gnu.org>]

https://gcc.gnu.org/g:ef0060013b0cc142672b033f0e3808efdac565a1

commit ef0060013b0cc142672b033f0e3808efdac565a1
Author: Martin Liska <mliska@suse.cz>
Date:   Mon Nov 29 14:46:47 2021 +0100

    Fix --help -Q output
    
            PR middle-end/103438
    
    gcc/ChangeLog:
    
            * opts-common.c (option_enabled): Return flag_var for BOOLEAN
            types (the can contain an unknown value -1).

Diff:
---
 gcc/opts-common.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/gcc/opts-common.c b/gcc/opts-common.c
index 9d1914ff2ff..c4a19b9a0b6 100644
--- a/gcc/opts-common.c
+++ b/gcc/opts-common.c
@@ -1586,7 +1586,8 @@ option_flag_var (int opt_index, struct gcc_options *opts)
 }
 
 /* Return 1 if option OPT_IDX is enabled in OPTS, 0 if it is disabled,
-   or -1 if it isn't a simple on-off switch.  */
+   or -1 if it isn't a simple on-off switch (or if the value is unknown,
+   typically set later in target).  */
 
 int
 option_enabled (int opt_idx, unsigned lang_mask, void *opts)
@@ -1608,9 +1609,9 @@ option_enabled (int opt_idx, unsigned lang_mask, void *opts)
       {
       case CLVC_BOOLEAN:
 	if (option->cl_host_wide_int)
-	  return *(HOST_WIDE_INT *) flag_var != 0;
+	  return *(HOST_WIDE_INT *) flag_var;
 	else
-	  return *(int *) flag_var != 0;
+	  return *(int *) flag_var;
 
       case CLVC_EQUAL:
 	if (option->cl_host_wide_int)