A variable redeclaration or definition that provides additional type information for it, e.g. outermost array bounds, is not reflected in the debug information for the variable. With this patch, the debug info of the variable specialization gets a type attribute with the adjusted type. This patch affects mostly only array bounds. However, when the symbolic type used in a declaration and in a definition are different, although they refer to the same type, debug information will end up (correctly?) naming different symbolic types in the specification and the definition. Also, when a readonly declaration of an array loses the readonly flag at the definition because of the initializer, the definition may end up referencing a type while the specification refers to a const-qualified version of that type. If the type of the variable is already const-qualified, e.g. an array of a const type, the difference is meaningless. for gcc/ChangeLog PR debug/91507 * dwarf2out.c (override_type_for_decl_p): New. (gen_variable_die): Use it. for gcc/testsuite/ChangeLog PR debug/91507 * gcc.dg/debug/dwarf2/array-0.c: New. * gcc.dg/debug/dwarf2/array-1.c: New. * gcc.dg/debug/dwarf2/array-2.c: New. * gcc.dg/debug/dwarf2/array-3.c: New. * g++.dg/debug/dwarf2/array-0.C: New. * g++.dg/debug/dwarf2/array-1.C: New. * g++.dg/debug/dwarf2/array-2.C: New. Based on libstdc++-v3's src/c++98/pool_allocator.cc:__pool_alloc_base::_S_heap_size. * g++.dg/debug/dwarf2/array-3.C: New. Based on gcc's config/i386/i386-features.c:xlogue_layout::s_instances. * g++.dg/debug/dwarf2/array-4.C: New. From-SVN: r276403 |
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INSTALL | ||
config | ||
contrib | ||
fixincludes | ||
gcc | ||
gnattools | ||
gotools | ||
include | ||
intl | ||
libada | ||
libatomic | ||
libbacktrace | ||
libcc1 | ||
libcpp | ||
libdecnumber | ||
libffi | ||
libgcc | ||
libgfortran | ||
libgo | ||
libgomp | ||
libhsail-rt | ||
libiberty | ||
libitm | ||
libobjc | ||
liboffloadmic | ||
libphobos | ||
libquadmath | ||
libsanitizer | ||
libssp | ||
libstdc++-v3 | ||
libvtv | ||
lto-plugin | ||
maintainer-scripts | ||
zlib | ||
.dir-locals.el | ||
.gitattributes | ||
.gitignore | ||
ABOUT-NLS | ||
COPYING | ||
COPYING.LIB | ||
COPYING.RUNTIME | ||
COPYING3 | ||
COPYING3.LIB | ||
ChangeLog | ||
ChangeLog.jit | ||
ChangeLog.tree-ssa | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
README | ||
ar-lib | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
depcomp | ||
install-sh | ||
libtool-ldflags | ||
libtool.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
lt~obsolete.m4 | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
multilib.am | ||
symlink-tree | ||
test-driver | ||
ylwrap |
README
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.