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toplev.c (rest_of_compilation): Seperate the setjmp/vfork clobber warning from -Wuninitialized and put it under -W.

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Sun Oct 31 13:32:15 CET 1999  Marc Lehmann <pcg@goof.com>

	* toplev.c (rest_of_compilation): Seperate the setjmp/vfork clobber
        warning from -Wuninitialized and put it under -W.
        * function.c (uninitialized_vars_warning): Warn only when the
        corresponding flag is set.

From-SVN: r30294
This commit is contained in:
Marc Lehmann 1999-10-31 21:52:00 +00:00 committed by Marc Lehmann
parent 79f5f47f76
commit 8fbe10354e
3 changed files with 14 additions and 4 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
Sun Oct 31 13:32:15 CET 1999 Marc Lehmann <pcg@goof.com>
* toplev.c (rest_of_compilation): Seperate the setjmp/vfork clobber
warning from -Wuninitialized and put it under -W.
* function.c (uninitialized_vars_warning): Warn only when the
corresponding flag is set.
Sun Oct 31 01:53:30 1999 Jeffrey A Law (law@cygnus.com)
* combine.c (combine_simplify_rtx): Renamed from simplify_rtx. All

6
gcc/function.c
View File

@ -5075,7 +5075,8 @@ uninitialized_vars_warning (block)
register tree decl, sub;
for (decl = BLOCK_VARS (block); decl; decl = TREE_CHAIN (decl))
{
if (TREE_CODE (decl) == VAR_DECL
if (warn_uninitialized
&& TREE_CODE (decl) == VAR_DECL
/* These warnings are unreliable for and aggregates
because assigning the fields one by one can fail to convince
flow.c that the entire aggregate was initialized.
@ -5094,7 +5095,8 @@ uninitialized_vars_warning (block)
&& regno_uninitialized (REGNO (DECL_RTL (decl))))
warning_with_decl (decl,
"`%s' might be used uninitialized in this function");
if (TREE_CODE (decl) == VAR_DECL
if (extra_warnings
&& TREE_CODE (decl) == VAR_DECL
&& DECL_RTL (decl) != 0
&& GET_CODE (DECL_RTL (decl)) == REG
&& regno_clobbered_at_setjmp (REGNO (DECL_RTL (decl))))

5
gcc/toplev.c
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@ -4010,10 +4010,11 @@ rest_of_compilation (decl)
life_analysis (insns, max_reg_num (), rtl_dump_file, 1);
});
if (warn_uninitialized)
if (warn_uninitialized || extra_warnings)
{
uninitialized_vars_warning (DECL_INITIAL (decl));
setjmp_args_warning ();
if (extra_warnings)
setjmp_args_warning ();
}
}