fa3d2d3810
For floating point types, the question is what MAX(a, NaN) or MIN(a, NaN) should return (where "a" is a normal number). There are valid usecases for returning either one, but the Fortran standard doesn't specify which one should be chosen. Also, there is no consensus among other tested compilers. In short, it's a mess. So lets just do whatever is fastest, which is using MAX_EXPR/MIN_EXPR which are not defined to do anything in particular if one of the operands is a NaN. gcc/fortran/ChangeLog: 2018-08-21 Janne Blomqvist <jb@gcc.gnu.org> * trans-intrinsic.c (gfc_conv_intrinsic_minmax): Use MAX_EXPR/MIN_EXPR unconditionally for real arguments. * gfortran.texi (Compiler Characteristics): Document MAX/MIN behavior wrt NaN. gcc/testsuite/ChangeLog: 2018-08-21 Janne Blomqvist <jb@gcc.gnu.org> * gfortran.dg/nan_1.f90: Remove tests that test MAX/MIN with NaNs. From-SVN: r263751 |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libhsail-rt | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ChangeLog | ||
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| compile | ||
| config-ml.in | ||
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| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
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| ltmain.sh | ||
| ltoptions.m4 | ||
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| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
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| missing | ||
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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.