mirror of git://gcc.gnu.org/git/gcc.git
0d4b254b20
When forcing single-lane SLP to emulate non-SLP behavior we need to disable heuristics designed to optimize SLP loads and instead in all cases resort to an interleaving scheme as requested by forcefully doing single-lane SLP. This fixes the remaining fallout for --param vect-force-slp=1 on x86. PR tree-optimization/116973 * tree-vect-slp.cc (vect_lower_load_permutations): Add force_single_lane parameter. Disable heuristic that keeps some load-permutations. (vect_analyze_slp): Pass force_single_lane to vect_lower_load_permutations. |
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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.