1b3c981367
There is a loophole in new string store merging support added recently: it does not check that the stores are consecutive, which is obviously required if you want to concatenate them... Simple fix attached, the nice thing being that it can fall back to the regular processing if any hole is detected in the series of stores, thanks to the handling of STRING_CST by native_encode_expr. gcc/ChangeLog: * gimple-ssa-store-merging.c (struct merged_store_group): Add new 'consecutive' field. (merged_store_group): Set it to true. (do_merge): Set it to false if the store is not consecutive and set string_concatenation to false in this case. (merge_into): Call do_merge on entry. (merge_overlapping): Likewise. gcc/testsuite/ChangeLog: * gnat.dg/opt90a.adb: New test. * gnat.dg/opt90b.adb: Likewise. * gnat.dg/opt90c.adb: Likewise. * gnat.dg/opt90d.adb: Likewise. * gnat.dg/opt90e.adb: Likewise. * gnat.dg/opt90a_pkg.ads: New helper. * gnat.dg/opt90b_pkg.ads: Likewise. * gnat.dg/opt90c_pkg.ads: Likewise. * gnat.dg/opt90d_pkg.ads: Likewise. * gnat.dg/opt90e_pkg.ads: Likewise. |
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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.