a3382d9d67
The checking assertion added for PR118765 did not take into account that add_decl_expr can change TYPE_NAME to a TYPE_DECL with no name for certain cases of variably modified types. This also implies that we might sometimes not reliably detect the absence of a tag when only considering TYPE_NAME. This patch introduces a new helper function c_type_tag to reliable compute the tag for a tagged types and uses it for code where the switch to C23 may cause regressions. PR c/119612 gcc/c/ChangeLog: * c-tree.h (c_type_tag): Add prototype. * c-typeck.cc (c_type_tag): New function. (tagged_types_tu_compatible_p, composite_type_internal): Use c_type_tag. * c-decl.cc (c_struct_hasher::hash, previous_tag): Use c_type_tag. gcc/testsuite/ChangeLog: * gcc.dg/gnu23-tag-6.c: New test. * gcc.dg/pr119612.c: New test. |
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| c++tools | ||
| config | ||
| contrib | ||
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| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcody | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
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| libgo | ||
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| libiberty | ||
| libitm | ||
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| ABOUT-NLS | ||
| ar-lib | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
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| configure | ||
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| COPYING | ||
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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.