GCC modified for the FreeChainXenon project
0dd0e980b5
* predict.c (estimate_probability): Reorganize opcode heuristics.
* predict.def (PRED_OPCODE_POSITIVE, PRED_OPCODE_NONEQUAL,
PRED_FPOPCODE): New.
* i386.c (override_options): Recognize various CPU variants and set
SSE/MMX/3dNOW flags accordingly.
* i386.h (MASK_MMX_SET, MASK_SSE_SET, MASK_SSE2_SET, MASK_3DNOW_SET,
MASK_3DNOW_A_SET): New.
(MASK_ACCUMULATE_OUTGOING_ARGS_SET): New.
(MASK_NO_ACCUMULATE_OUTGOING_ARGS): Delete.
(MASK_*): Renumber.
(TARGET_FLAGS): Use new masks.
(CPP_CPU_SPECS): Recognize new CPU variants.
* invoke.texi (-mcpu): Update documentation.
* flags.h (flag_prefetch_loop_arrays): Declare.
* loop.h (LOOP_PREFETCH): Define new constant.
* loop.c (strength_reduce): Call emit_prefetch_instructions.
(MAX_PREFETCHES, PREFETCH_BLOCKS_BEFORE_LOOP_MAX,
PREFETCH_BLOCKS_BEFORE_LOOP_MIN, PREFETCH_BLOCKS_IN_LOOP_MIN): New
constants.
(check_store_data): New structure.
(check_store, emit_prefetch_instructions, rtx_equal_for_prefetch_p):
New functions.
* toplev.c: Include insn-flags.h.
(flag_prefetch_loop_arrays): New global variable.
(lang_independent_option): Add -fprefetch-loop-arrays.
(rest_of_compilation) Pass LOOP_PREFETCH when flag_prefetch_loop_arrays
is set.
* Makefile.in (toplev.c): Depend on insn-flags.h.
* invoke.texi (-fprefetch-loop-arrays): Document.
* predict.c (estimate_probability): Distribute the loop exit
probability according to number of exit edges.
* cfgcleanup.c (insns_match_p): Break out from ...;
(flow_find_cross_jump): ... here;
(outgoing_edges_match): Add parameter MODE; attempt to match everything
except for tablejumps.
(try_crossjump_to_edge): Accept complex edges.
(try_crossjump_bb): Likewise.
From-SVN: r47969
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| boehm-gc | ||
| config | ||
| contrib | ||
| fastjar | ||
| gcc | ||
| include | ||
| INSTALL | ||
| libchill | ||
| libf2c | ||
| libffi | ||
| libiberty | ||
| libjava | ||
| libobjc | ||
| libstdc++-v3 | ||
| maintainer-scripts | ||
| zlib | ||
| .cvsignore | ||
| ChangeLog | ||
| config-ml.in | ||
| config.guess | ||
| config.if | ||
| config.sub | ||
| configure | ||
| configure.in | ||
| COPYING | ||
| COPYING.LIB | ||
| install-sh | ||
| libtool.m4 | ||
| ltcf-c.sh | ||
| ltcf-cxx.sh | ||
| ltcf-gcj.sh | ||
| ltconfig | ||
| ltmain.sh | ||
| MAINTAINERS | ||
| Makefile.in | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| README | ||
| symlink-tree | ||
| ylwrap | ||
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file 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.html for how to report bugs usefully.