5cd4f8901a
Apparently older GDB versions didn't handle this test right and so while it has been properly printing 42 on line 14 (e.g. on x86_64), it issued a weird error on line 17 (and because it didn't print any value, guality testsuite wasn't marking it as FAIL). That has been apparently fixed in GDB 10, where it now (on x86_64) prints properly. Unfortunately that revealed that the test can suffer from instruction scheduling, where e.g. on i686 (but various other arches) the very first insn of the function (or whatever b 14 is on) happens to be load of the S::i variable from memory and that insn has the inner lexical scope, so GDB 10 prints there 24 instead of 42. The following insn is then the first store to l and there the automatic i is in scope and prints as 42 and then the second store to l where the inner lexical scope is current and prints 24 again. The test wasn't meant about insn scheduling but about whether we emit the DIEs properly, so this hack attempts to prevent the undesirable scheduling. 2020-11-13 Jakub Jelinek <jakub@redhat.com> * g++.dg/guality/redeclaration1.C (p): New variable. (S::f): Increment what p points to before storing S::i into l. Adjust gdb-test line numbers. (main): Initialize p to address of an automatic variable. |
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| INSTALL | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| intl | ||
| libada | ||
| libatomic | ||
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| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libhsail-rt | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
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| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| COPYING | ||
| COPYING.LIB | ||
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| COPYING3 | ||
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| Makefile.def | ||
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| compile | ||
| config-ml.in | ||
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| config.rpath | ||
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| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
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| ltgcc.m4 | ||
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| missing | ||
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| test-driver | ||
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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.