14e33ee856
(push_label_level, pop_label_level): Kill. (struct binding_level): Rename level_chain to outer. Add outer_function field. Change parm_flag, function_body, keep, keep_if_subblocks to 1-bit bitfields of type bool. (current_function_level): New variable. (keep_next_level_flag, keep_next_if_subblocks): Change type to bool. (keep_next_level, declare_parm_level, warn_if_shadowing): Update to match. (struct language_function): Kill named_labels, shadowed_labels fields. (c_init_decl_processing, start_function, c_push__function_context) (c_pop_function_context): No need to muck with named_labels nor shadowed_labels. (make_binding_level): No need to clear the structure here. (pop_binding_level): Always operate on current_binding_level. Update current_function_level if necessary. (pushlevel): Don't clear named_labels. Update current_function_level if necessary. Use "true" and "false" where appropriate. (poplevel): Diagnose labels defined but not used, or vice versa, and clear out label-meanings leaving scope, while walking down the decls list, for all binding levels. Handle LABEL_DECLs appearing in the shadowed list. pop_binding_level takes no arguments. (pushdecl_function_level): Use current_function_level. (make_label, bind_label): New static functions. (declare_label): New exported function. (lookup_label, define_label): Rewritten for new data structure. (shadow_label): Kill. * c-tree.h: Prototype declare_label; don't prototype push_label_level, pop_label_level, nor shadow_label. * c-parse.in: Remove all calls to push_label_level and pop_label_level. Use declare_label for __label__ decls. * doc/extend.texi: Clarify that __label__ can be used to declare labels with local scope in any nested block, not just statement expressions. Cross-reference nested functions section from local labels section. testsuite: * gcc.dg/noncompile/label-1.c: New comprehensive test case for diagnostics of ill-formed constructs involving labels. * gcc.dg/noncompile/label-lineno-1.c: Add error regexp for the new 'previously defined here' message. From-SVN: r69597 |
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| boehm-gc | ||
| config | ||
| contrib | ||
| fastjar | ||
| gcc | ||
| include | ||
| INSTALL | ||
| intl | ||
| libf2c | ||
| libffi | ||
| libiberty | ||
| libjava | ||
| libobjc | ||
| libstdc++-v3 | ||
| maintainer-scripts | ||
| zlib | ||
| .cvsignore | ||
| ABOUT-NLS | ||
| ChangeLog | ||
| config-ml.in | ||
| config.guess | ||
| config.if | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.in | ||
| COPYING | ||
| COPYING.LIB | ||
| install-sh | ||
| libtool.m4 | ||
| ltcf-c.sh | ||
| ltcf-cxx.sh | ||
| ltcf-gcj.sh | ||
| ltconfig | ||
| ltmain.sh | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| README | ||
| symlink-tree | ||
| ylwrap | ||
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs.html for how to report bugs usefully.