786188e8b8
The gori engine can calculate outgoing ranges for exported values. This change allows 1st degree recomputation. If a name is not exported from a block, but one of the ssa_names used directly in computing it is, then we can recompute the ssa_name on the edge using the edge values for its operands. * gimple-range-gori.cc (gori_compute::has_edge_range_p): Check with may_recompute_p. (gori_compute::may_recompute_p): New. (gori_compute::outgoing_edge_range_p): Perform recomputations. * gimple-range-gori.h (class gori_compute): Add prototype. |
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| INSTALL | ||
| c++tools | ||
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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.