23462d4d8f
PR middle-end/37908 * optabs.c (expand_sync_operation): Properly handle NAND case by calculating ~(t1 & val) instead of (~t1 & val). * builtins.c (expand_builtin_sync_operation): Warn for changed semantics in NAND builtins. * c.opt (Wsync-nand): New warning option. Describe -Wsync-nand. * doc/invoke.texi (Warning options): Add Wsync-nand. * doc/extend.texi (Atomic Builtins) [__sync_fetch_and_nand]: Correct __sync_fetch_and_nand builtin operation in the example. Add a note about changed semantics in GCC 4.4. [__sync_nand_and_fetch]: Correct __sync_nand_and_fetch builtin operation in the example. Add a note about changed semantics in GCC 4.4. testsuite/ChangeLog: PR middle-end/37908 * gcc.dg/pr37908.c: New test. * gcc.dg/ia64-sync-1.c: Correct __sync_fetch_and_nand and __sync_nand_and_fetch results. Add dg-message to look for the warning about changed semantics of NAND builtin. (init_si, init_di): Change init value for __sync_fetch_and_nand to -1. (test_si, test_di): Change expected result of __sync_nand_and_fetch to ~7. * gcc.dg/ia64-sync-2.c: Correct __sync_fetch_and_nand and __sync_nand_and_fetch results. Add dg-message to look for the warning about changed semantics of NAND builtin. (init_noret_si, init_noret_di): Change init value for __sync_fetch_and_nand to -1. (init_noret_si, init_noret_di): Change expected result of __sync_nand_and_fetch to ~7. * gcc.dg/sync-2.c: Correct __sync_fetch_and_nand and __sync_nand_and_fetch results. Add dg-message to look for the warning about changed semantics of NAND builtin. (init_qi, init_qi): Change init value for __sync_fetch_and_nand to -1. (init_hi, init_hi): Change expected result of __sync_nand_and_fetch to ~7. * gcc.dg/sync-3.c: Copy from sync-2.c instead of including the c source file. * gcc.c-torture/compile/sync-1.c: Add dg-message to look for the warning about changed semantics of NAND builtin. * gcc.c-torture/compile/sync-2.c: Ditto. * gcc.c-torture/compile/sync-3.c: Ditto. From-SVN: r141942 |
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| boehm-gc | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgomp | ||
| libiberty | ||
| libjava | ||
| libmudflap | ||
| libobjc | ||
| libssp | ||
| libstdc++-v3 | ||
| maintainer-scripts | ||
| zlib | ||
| ABOUT-NLS | ||
| ChangeLog | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| COPYING.LIB | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
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| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| README | ||
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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.