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| author | Mark Heffernan <meheff@google.com> | 2011-08-23 18:06:42 +0000 |
|---|---|---|
| committer | Mark Heffernan <meheff@gcc.gnu.org> | 2011-08-23 18:06:42 +0000 |
| commit | a3a704a495fab23d8a9ed90a2207c09a61cca341 (patch) | |
| tree | 617e016549617abef28a5f2414f2c7309caae53b /gcc/builtins.c | |
| parent | 82feeb8d6804cfa21d451ade6e11240f0dc0d5b9 (diff) | |
| download | gcc-a3a704a495fab23d8a9ed90a2207c09a61cca341.zip gcc-a3a704a495fab23d8a9ed90a2207c09a61cca341.tar.gz gcc-a3a704a495fab23d8a9ed90a2207c09a61cca341.tar.bz2 | |
re PR middle-end/38509 (Bogus "attempt to free a non-heap object" warning)
2011-08-23 Mark Heffernan <meheff@google.com>
PR middle-end/38509
* common.opt (Wfree-nonheap-object): New option.
* doc/invoke.texi (Warning options): Document -Wfree-nonheap-object.
* builtins.c (maybe_emit_free_warning): Add OPT_Wfree_nonheap_object
to warning.
(expand_builtin): Make warning conditional.
From-SVN: r178004
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 1f263073..b79ce6f 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -6096,7 +6096,8 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode, break; case BUILT_IN_FREE: - maybe_emit_free_warning (exp); + if (warn_free_nonheap_object) + maybe_emit_free_warning (exp); break; default: /* just do library call, if unknown builtin */ @@ -11915,11 +11916,11 @@ maybe_emit_free_warning (tree exp) return; if (SSA_VAR_P (arg)) - warning_at (tree_nonartificial_location (exp), - 0, "%Kattempt to free a non-heap object %qD", exp, arg); + warning_at (tree_nonartificial_location (exp), OPT_Wfree_nonheap_object, + "%Kattempt to free a non-heap object %qD", exp, arg); else - warning_at (tree_nonartificial_location (exp), - 0, "%Kattempt to free a non-heap object", exp); + warning_at (tree_nonartificial_location (exp), OPT_Wfree_nonheap_object, + "%Kattempt to free a non-heap object", exp); } /* Fold a call to __builtin_object_size with arguments PTR and OST, |