032c80e999
offset_int and widest_int are supposed to be at least one bit wider than all the values they need to represent, with the extra bits being signs. Thus offset_int is effectively int128_t and widest_int is effectively intNNN_t, for target-dependent NNN. Because the types are signed, there's not really any need to specify a sign for operations like comparison. I think things would be clearer if we supported <, <=, > and >= for them (but not for wide_int, which doesn't have a sign). Tested on x86_64-linux-gnu and aarch64-linux-gnu. gcc/ * wide-int.h: Update offset_int and widest_int documentation. (WI_SIGNED_BINARY_PREDICATE_RESULT): New macro. (wi::binary_traits): Allow ordered comparisons between offset_int and offset_int, between widest_int and widest_int, and between either of these types and basic C types. (operator <, <=, >, >=): Define for the same combinations. * tree.h (tree_int_cst_lt): Use comparison operators instead of wi:: comparisons. (tree_int_cst_le): Likewise. * gimple-fold.c (fold_array_ctor_reference): Likewise. (fold_nonarray_ctor_reference): Likewise. * gimple-ssa-strength-reduction.c (record_increment): Likewise. * tree-affine.c (aff_comb_cannot_overlap_p): Likewise. * tree-parloops.c (try_transform_to_exit_first_loop_alt): Likewise. * tree-sra.c (completely_scalarize): Likewise. * tree-ssa-alias.c (stmt_kills_ref_p): Likewise. * tree-ssa-reassoc.c (extract_bit_test_mask): Likewise. * tree-vrp.c (extract_range_from_binary_expr_1): Likewise. (check_for_binary_op_overflow): Likewise. (search_for_addr_array): Likewise. * ubsan.c (ubsan_expand_objsize_ifn): Likewise. From-SVN: r235719 |
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| boehm-gc | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcilkrts | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libiberty | ||
| libitm | ||
| libjava | ||
| libmpx | ||
| libobjc | ||
| liboffloadmic | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ChangeLog | ||
| ChangeLog.jit | ||
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| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| lt~obsolete.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
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| ylwrap | ||
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.