8a40fef310
A common way for a c_expr to have an uninitialized src_range is in error-handling, where the "value" field is set to error_mark_node without touching the src_range, leading to complaints from valgrind. This patch introduces a new method c_expr::set_error which sets the value to error_mark_node whilst initializing the src_range to UNKNOWN_LOCATION. This fixes the valgrind issue seen in PR c/71171, along with various other related issues seen when running the testsuite using the checker patch I posted here: https://gcc.gnu.org/ml/gcc-patches/2015-12/msg00887.html (this checker still doesn't fully work yet, but it seems to be good for easily detecting these issues without needing Valgrind). gcc/c/ChangeLog: PR c/71171 * c-parser.c (c_parser_generic_selection): Use c_expr::set_error in error-handling. (c_parser_postfix_expression): Likewise. * c-tree.h (c_expr::set_error): New method. * c-typeck.c (parser_build_binary_op): In error-handling, ensure that result's range is initialized. From-SVN: r236488 |
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| boehm-gc | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcilkrts | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libiberty | ||
| libitm | ||
| libjava | ||
| libmpx | ||
| libobjc | ||
| liboffloadmic | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
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| ltoptions.m4 | ||
| ltsugar.m4 | ||
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| MAINTAINERS | ||
| Makefile.def | ||
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| missing | ||
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| README | ||
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This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with 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/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.