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| author | daney <daney@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-06-11 23:55:45 +0000 |
|---|---|---|
| committer | daney <daney@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-06-11 23:55:45 +0000 |
| commit | d2b48f0c58acd993a34ce2ab25166ef727a12cce (patch) | |
| tree | 33e26cb48c7e5455995d1edba975d67cf78cad99 /gcc/builtins.def | |
| parent | f6e79f69bcfd79a673dc4ab19db9af5513c87dbb (diff) | |
| download | gcc-d2b48f0c58acd993a34ce2ab25166ef727a12cce.tar.gz | |
2009-06-11 David Daney <ddaney@caviumnetworks.com>
PR c/39252
* doc/extend.texi ( __builtin_unreachable): Document new builtin.
* builtins.c (expand_builtin_unreachable): New function.
(expand_builtin): Handle BUILT_IN_UNREACHABLE case.
* builtins.def (BUILT_IN_UNREACHABLE): Add new builtin.
* cfgcleanup.c (try_optimize_cfg): Delete empty blocks with no
successors.
* cfgrtl.c (rtl_verify_flow_info): Handle empty blocks when
searching for missing barriers.
2009-06-11 David Daney <ddaney@caviumnetworks.com>
PR c/39252
* gcc.dg/builtin-unreachable-1.c: New test.
* gcc.dg/builtin-unreachable-2.c: Same.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@148403 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/builtins.def')
| -rw-r--r-- | gcc/builtins.def | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/builtins.def b/gcc/builtins.def index 3f4e251c3fd..8d1693605a6 100644 --- a/gcc/builtins.def +++ b/gcc/builtins.def @@ -698,6 +698,7 @@ DEF_GCC_BUILTIN (BUILT_IN_SETJMP, "setjmp", BT_FN_INT_PTR, ATTR_NULL) DEF_EXT_LIB_BUILTIN (BUILT_IN_STRFMON, "strfmon", BT_FN_SSIZE_STRING_SIZE_CONST_STRING_VAR, ATTR_FORMAT_STRFMON_NOTHROW_3_4) DEF_LIB_BUILTIN (BUILT_IN_STRFTIME, "strftime", BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_PTR, ATTR_FORMAT_STRFTIME_NOTHROW_3_0) DEF_GCC_BUILTIN (BUILT_IN_TRAP, "trap", BT_FN_VOID, ATTR_NORETURN_NOTHROW_LIST) +DEF_GCC_BUILTIN (BUILT_IN_UNREACHABLE, "unreachable", BT_FN_VOID, ATTR_NORETURN_NOTHROW_LIST) DEF_GCC_BUILTIN (BUILT_IN_UNWIND_INIT, "unwind_init", BT_FN_VOID, ATTR_NULL) DEF_GCC_BUILTIN (BUILT_IN_UPDATE_SETJMP_BUF, "update_setjmp_buf", BT_FN_VOID_PTR_INT, ATTR_NULL) DEF_GCC_BUILTIN (BUILT_IN_VA_COPY, "va_copy", BT_FN_VOID_VALIST_REF_VALIST_ARG, ATTR_NOTHROW_LIST) |