2e96b5f14e
This is a rewrite of the backwards threader with a ranger based solver. The code is divided into two parts: the path solver in gimple-range-path.*, and the path discovery bits in tree-ssa-threadbackward.c. The legacy code is still available with --param=threader-mode=legacy, but will be removed shortly after. gcc/ChangeLog: * Makefile.in (tree-ssa-loop-im.o-warn): New. * flag-types.h (enum threader_mode): New. * params.opt: Add entry for --param=threader-mode. * tree-ssa-threadbackward.c (THREADER_ITERATIVE_MODE): New. (class back_threader): New. (back_threader::back_threader): New. (back_threader::~back_threader): New. (back_threader::maybe_register_path): New. (back_threader::find_taken_edge): New. (back_threader::find_taken_edge_switch): New. (back_threader::find_taken_edge_cond): New. (back_threader::resolve_def): New. (back_threader::resolve_phi): New. (back_threader::find_paths_to_names): New. (back_threader::find_paths): New. (dump_path): New. (debug): New. (thread_jumps::find_jump_threads_backwards): Call ranger threader. (thread_jumps::find_jump_threads_backwards_with_ranger): New. (pass_thread_jumps::execute): Abstract out code... (try_thread_blocks): ...here. * tree-ssa-threadedge.c (jump_threader::thread_outgoing_edges): Abstract out threading candidate code to... (single_succ_to_potentially_threadable_block): ...here. * tree-ssa-threadedge.h (single_succ_to_potentially_threadable_block): New. * tree-ssa-threadupdate.c (register_jump_thread): Return boolean. * tree-ssa-threadupdate.h (class jump_thread_path_registry): Return bool from register_jump_thread. libgomp/ChangeLog: * testsuite/libgomp.graphite/force-parallel-4.c: Adjust for threader. * testsuite/libgomp.graphite/force-parallel-8.c: Same. gcc/testsuite/ChangeLog: * g++.dg/debug/dwarf2/deallocator.C: Adjust for threader. * gcc.c-torture/compile/pr83510.c: Same. * dg.dg/analyzer/pr94851-2.c: Same. * gcc.dg/loop-unswitch-2.c: Same. * gcc.dg/old-style-asm-1.c: Same. * gcc.dg/pr68317.c: Same. * gcc.dg/pr97567-2.c: Same. * gcc.dg/predict-9.c: Same. * gcc.dg/shrink-wrap-loop.c: Same. * gcc.dg/sibcall-1.c: Same. * gcc.dg/tree-ssa/builtin-sprintf-3.c: Same. * gcc.dg/tree-ssa/pr21001.c: Same. * gcc.dg/tree-ssa/pr21294.c: Same. * gcc.dg/tree-ssa/pr21417.c: Same. * gcc.dg/tree-ssa/pr21458-2.c: Same. * gcc.dg/tree-ssa/pr21563.c: Same. * gcc.dg/tree-ssa/pr49039.c: Same. * gcc.dg/tree-ssa/pr61839_1.c: Same. * gcc.dg/tree-ssa/pr61839_3.c: Same. * gcc.dg/tree-ssa/pr77445-2.c: Same. * gcc.dg/tree-ssa/split-path-4.c: Same. * gcc.dg/tree-ssa/ssa-dom-thread-11.c: Same. * gcc.dg/tree-ssa/ssa-dom-thread-12.c: Same. * gcc.dg/tree-ssa/ssa-dom-thread-14.c: Same. * gcc.dg/tree-ssa/ssa-dom-thread-18.c: Same. * gcc.dg/tree-ssa/ssa-dom-thread-6.c: Same. * gcc.dg/tree-ssa/ssa-dom-thread-7.c: Same. * gcc.dg/tree-ssa/ssa-fre-48.c: Same. * gcc.dg/tree-ssa/ssa-thread-11.c: Same. * gcc.dg/tree-ssa/ssa-thread-12.c: Same. * gcc.dg/tree-ssa/ssa-thread-14.c: Same. * gcc.dg/tree-ssa/vrp02.c: Same. * gcc.dg/tree-ssa/vrp03.c: Same. * gcc.dg/tree-ssa/vrp05.c: Same. * gcc.dg/tree-ssa/vrp06.c: Same. * gcc.dg/tree-ssa/vrp07.c: Same. * gcc.dg/tree-ssa/vrp09.c: Same. * gcc.dg/tree-ssa/vrp19.c: Same. * gcc.dg/tree-ssa/vrp20.c: Same. * gcc.dg/tree-ssa/vrp33.c: Same. * gcc.dg/uninit-pred-9_b.c: Same. * gcc.dg/uninit-pr61112.c: Same. * gcc.dg/vect/bb-slp-16.c: Same. * gcc.target/i386/avx2-vect-aggressive.c: Same. * gcc.dg/tree-ssa/ranger-threader-1.c: New test. * gcc.dg/tree-ssa/ranger-threader-2.c: New test. * gcc.dg/tree-ssa/ranger-threader-3.c: New test. * gcc.dg/tree-ssa/ranger-threader-4.c: New test. * gcc.dg/tree-ssa/ranger-threader-5.c: New test. |
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| c++tools | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcody | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ar-lib | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| lt~obsolete.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| multilib.am | ||
| README | ||
| symlink-tree | ||
| test-driver | ||
| 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.