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| author | Eric Botcazou <ebotcazou@adacore.com> | 2017-10-07 22:17:16 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2017-10-07 22:17:16 +0000 |
| commit | 06fc54dd64ad01755a95c0f44bcdd344be1f19d6 (patch) | |
| tree | d5420a2ce2b9fcdfc0cbfa310180030dd78052d0 /gcc/except.c | |
| parent | 2fcd5884177d490c5cdc36464bd6b0a3bc4e8d54 (diff) | |
| download | gcc-06fc54dd64ad01755a95c0f44bcdd344be1f19d6.zip gcc-06fc54dd64ad01755a95c0f44bcdd344be1f19d6.tar.gz gcc-06fc54dd64ad01755a95c0f44bcdd344be1f19d6.tar.bz2 | |
builtins.def (BUILT_IN_SETJMP): Declare as library builtin instead of GCC builtin if...
* builtins.def (BUILT_IN_SETJMP): Declare as library builtin instead
of GCC builtin if DONT_USE_BUILTIN_SETJMP is defined.
* except.c (sjlj_emit_function_enter): If DONT_USE_BUILTIN_SETJMP is
defined, force the creation of a new block for a dispatch label.
From-SVN: r253515
Diffstat (limited to 'gcc/except.c')
| -rw-r--r-- | gcc/except.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/except.c b/gcc/except.c index 10b5a7c..4991e7b 100644 --- a/gcc/except.c +++ b/gcc/except.c @@ -1209,6 +1209,28 @@ sjlj_emit_function_enter (rtx_code_label *dispatch_label) fn_begin_outside_block = false; } +#ifdef DONT_USE_BUILTIN_SETJMP + if (dispatch_label) + { + /* The sequence contains a branch in the middle so we need to force + the creation of a new basic block by means of BB_SUPERBLOCK. */ + if (fn_begin_outside_block) + { + basic_block bb + = split_edge (single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun))); + if (JUMP_P (BB_END (bb))) + emit_insn_before (seq, BB_END (bb)); + else + emit_insn_after (seq, BB_END (bb)); + } + else + emit_insn_after (seq, fn_begin); + + single_succ (ENTRY_BLOCK_PTR_FOR_FN (cfun))->flags |= BB_SUPERBLOCK; + return; + } +#endif + if (fn_begin_outside_block) insert_insn_on_edge (seq, single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun))); else |