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| author | Michael Matz <matz@suse.de> | 2009-10-08 16:03:11 +0000 |
|---|---|---|
| committer | Michael Matz <matz@gcc.gnu.org> | 2009-10-08 16:03:11 +0000 |
| commit | 6728ee79872ffd3dbcf858dab076c96c71ec95e5 (patch) | |
| tree | dfbfdde0ac425b160f559d82eab975a3ba3e115a /gcc/except.c | |
| parent | 0d0bfe1795ba93c2af0fca2ca68a025c5cd4c82b (diff) | |
| download | gcc-6728ee79872ffd3dbcf858dab076c96c71ec95e5.zip gcc-6728ee79872ffd3dbcf858dab076c96c71ec95e5.tar.gz gcc-6728ee79872ffd3dbcf858dab076c96c71ec95e5.tar.bz2 | |
re PR middle-end/41573 (segfault in trunk related to strings)
PR middle-end/41573
* builtins.c (fold_builtin_isascii): Use fold_build2.
(fold_builtin_isdigit): Ditto.
* except.c (duplicate_eh_regions_1): Tolerate NULL labels.
* tree-cfg.c (struct rus_data, remove_useless_stmts_warn_notreached,
remove_useless_stmts_cond, remove_useless_stmts_tf,
remove_useless_stmts_tc, remove_useless_stmts_bind,
remove_useless_stmts_goto, remove_useless_stmts_label,
remove_useless_stmts_1, remove_useless_stmts,
pass_remove_useless_stmts): Remove.
* tree-pass.h (pass_remove_useless_stmts): Don't declare.
* passes.c (init_optimization_passes): Don't add
pass_remove_useless_stmts.
* tree-eh.c (lower_eh_constructs_2): Handle empty cleanups.
* tree.c (free_lang_data_in_decl): Don't clear DECL_INITIAL of
static constants.
* lto-symtab.c (lto_symtab_register_decl): Accepts DECL_INITIAL
for static constants.
* lto-streamer-out.c (output_gimple_stmt): Handle GIMPLE_NOP.
* lto-streamer-in.c (input_gimple_stmt): Handle GIMPLE_NOP.
testsuite/
* gcc.dg/tree-ssa/foldstring-1.c: Use fre dump.
* gcc.dg/tree-ssa/useless-1.c: Use gimple dump.
* gcc.dg/pr41573.c: New test.
From-SVN: r152563
Diffstat (limited to 'gcc/except.c')
| -rw-r--r-- | gcc/except.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/except.c b/gcc/except.c index c00bcd3..b25e48b 100644 --- a/gcc/except.c +++ b/gcc/except.c @@ -552,8 +552,11 @@ duplicate_eh_regions_1 (struct duplicate_eh_regions_data *data, case ERT_ALLOWED_EXCEPTIONS: new_r->u.allowed.type_list = old_r->u.allowed.type_list; - new_r->u.allowed.label - = data->label_map (old_r->u.allowed.label, data->label_map_data); + if (old_r->u.allowed.label) + new_r->u.allowed.label + = data->label_map (old_r->u.allowed.label, data->label_map_data); + else + new_r->u.allowed.label = NULL_TREE; break; case ERT_MUST_NOT_THROW: |