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| author | Jakub Jelinek <jakub@redhat.com> | 2012-11-23 17:04:03 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2012-11-23 17:04:03 +0100 |
| commit | 88cd0e88e36515f01b6f1e398358dc11cc06c389 (patch) | |
| tree | 756c94d3f1786802105c930a7ed81bf4e39c9a8d /gcc/langhooks-def.h | |
| parent | 340ef734b8072d2b58f946bb69170f2e535813d7 (diff) | |
| download | gcc-88cd0e88e36515f01b6f1e398358dc11cc06c389.tar.gz | |
re PR c++/54046 (wrong control reaches end of non-void function for switch case with throw and default)
PR c++/54046
* Makefile.in (gimple-low.o): Depend on langhooks.h.
* gimple-low.c: Include langhooks.c.
(block_may_fallthru): Handle TARGET_EXPR and ERROR_MARK,
by default call lang_hooks.block_may_fallthru.
* langhooks.h (struct lang_hooks): Add block_may_fallthru
langhook.
* langhooks-def.h (LANG_HOOKS_BLOCK_MAY_FALLTHRU): Define.
(LANG_HOOKS_INITIALIZER): Use it.
* cp-objcp-common.h (LANG_HOOKS_BLOCK_MAY_FALLTHRU): Redefine.
* cp-objcp-common.c (cxx_block_may_fallthru): New function.
* cp-tree.h (cxx_block_may_fallthru): New prototype.
* g++.dg/warn/Wreturn-type-8.C: New test.
From-SVN: r193762
Diffstat (limited to 'gcc/langhooks-def.h')
| -rw-r--r-- | gcc/langhooks-def.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/langhooks-def.h b/gcc/langhooks-def.h index d8f479f3f5d..75793f62325 100644 --- a/gcc/langhooks-def.h +++ b/gcc/langhooks-def.h @@ -115,6 +115,7 @@ extern void lhd_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *, #define LANG_HOOKS_EH_PERSONALITY lhd_gcc_personality #define LANG_HOOKS_EH_RUNTIME_TYPE lhd_pass_through_t #define LANG_HOOKS_EH_PROTECT_CLEANUP_ACTIONS NULL +#define LANG_HOOKS_BLOCK_MAY_FALLTHRU hook_bool_const_tree_true #define LANG_HOOKS_EH_USE_CXA_END_CLEANUP false #define LANG_HOOKS_DEEP_UNSHARING false @@ -300,6 +301,7 @@ extern void lhd_end_section (void); LANG_HOOKS_EH_PERSONALITY, \ LANG_HOOKS_EH_RUNTIME_TYPE, \ LANG_HOOKS_EH_PROTECT_CLEANUP_ACTIONS, \ + LANG_HOOKS_BLOCK_MAY_FALLTHRU, \ LANG_HOOKS_EH_USE_CXA_END_CLEANUP, \ LANG_HOOKS_DEEP_UNSHARING \ } |