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| author | Sandra Loosemore <sandra@codesourcery.com> | 2012-07-25 14:08:06 -0400 |
|---|---|---|
| committer | Sandra Loosemore <sandra@gcc.gnu.org> | 2012-07-25 14:08:06 -0400 |
| commit | d45eae79db3e8c41ac1f307b267179498a636e0b (patch) | |
| tree | f42803034e2d99c0fb7f313962516557837e0a57 /gcc/target.def | |
| parent | 62732c3044c767f4efcff0cd398c9e65ba437bda (diff) | |
| download | gcc-d45eae79db3e8c41ac1f307b267179498a636e0b.tar.gz | |
re PR target/53633 (__attribute__((naked)) should disable -Wreturn-type)
2012-07-25 Sandra Loosemore <sandra@codesourcery.com>
Paul Brook <paul@codesourcery.com>
PR target/53633
gcc/
* target.def (warn_func_return): New hook.
* doc/tm.texi.in (TARGET_WARN_FUNC_RETURN): New hook.
* doc/tm.texi: Regenerate.
* doc/sourcebuild.texi (Effective-Target Keywords): Document
naked_functions.
* ipa-pure-const.c (warn_function_noreturn): Check
targetm.warn_func_return.
* tree-cfg.c (execute_warn_function_return): Likewise.
* config/spu/spu.c (spu_warn_func_return): New.
(TARGET_WARN_FUNC_RETURN): Define.
* config/rx/rx.c (rx_warn_func_return): New.
(TARGET_WARN_FUNC_RETURN): Define.
* config/avr/avr.c (avr_warn_func_return): New.
(TARGET_WARN_FUNC_RETURN): Define.
* config/arm/arm.c (arm_warn_func_return): New.
(TARGET_WARN_FUNC_RETURN): Define.
* config/mcore/mcore.c (mcore_warn_func_return): New.
(TARGET_WARN_FUNC_RETURN): Define.
(saved_warn_return_type, saved_warn_return_type_count): Remove.
(mcore_reorg, mcore_handle_naked_attribute): Remove warn_return hack.
gcc/cp/
* decl.c (finish_function): Check targetm.warn_func_return.
gcc/testsuite/
* lib/target-suports.exp (check_effective_target_naked_functions):
New.
* c-c++-common/pr53633.c: New test.
Co-Authored-By: Paul Brook <paul@codesourcery.com>
From-SVN: r189860
Diffstat (limited to 'gcc/target.def')
| -rw-r--r-- | gcc/target.def | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/target.def b/gcc/target.def index c172673811e..bdbf68e7c53 100644 --- a/gcc/target.def +++ b/gcc/target.def @@ -2715,6 +2715,15 @@ DEFHOOK void, (struct hard_reg_set_container *), NULL) +/* For targets that have attributes that can affect whether a + function's return statements need checking. For instance a 'naked' + function attribute. */ +DEFHOOK +(warn_func_return, + "True if a function's return statements should be checked for matching the function's return type. This includes checking for falling off the end of a non-void function. Return false if no such check should be made.", + bool, (tree), + hook_bool_tree_true) + /* Determine the type of unwind info to emit for debugging. */ DEFHOOK (debug_unwind_info, |