9f3dcd1414
As part of the change to larger character lengths, the string copy algorithm was temporarily pessimized to get around some spurious -Wstringop-overflow warnings. Having tried a number of variations of this algorithm I have managed to get it down to one spurious warning, only with -O1 optimization, in the testsuite. This patch reinstates the optimized variant and modifies this one testcase to ignore the warning. Regtested on x86_64-pc-linux-gnu. gcc/fortran/ChangeLog: 2018-01-31 Janne Blomqvist <jb@gcc.gnu.org> PR fortran/78534 * trans-expr.c (fill_with_spaces): Use memset instead of generating loop. (gfc_trans_string_copy): Improve opportunity to use builtins with constant lengths. gcc/testsuite/ChangeLog: 2018-01-31 Janne Blomqvist <jb@gcc.gnu.org> PR fortran/78534 * gfortran.dg/allocate_deferred_char_scalar_1.f03: Prune -Wstringop-overflow warnings due to spurious warning with -O1. * gfortran.dg/char_cast_1.f90: Update dump scan pattern. * gfortran.dg/transfer_intrinsic_1.f90: Likewise. From-SVN: r257233 |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
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| libgcc | ||
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| libsanitizer | ||
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| .dir-locals.el | ||
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| .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 | ||
| compile | ||
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| configure | ||
| configure.ac | ||
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| missing | ||
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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.