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* gcse.c (cprop_cc0_jump): Function deleted. (cprop_jump): Take an additional argument which is the possibly NULL cc setting insn immediately before the conditional jump. When a MODE_CC set is present, substitute it into the JUMP_INSN before attempting the constant propagation. (cprop_insn): Recognize cc setters followed by conditional jumps as a special case. Use cprop_jump instead of cprop_cc0_jump. (cprop_one_pass): Call bypass_conditional_jumps if altering jumps. (find_bypass_set): New function based upon find_avail_set used by cprop, but finds constant expressions available at the end of basic blocks. (bypass_block): New function. Given a basic block that begins with a conditional jump and multiple incoming edges, perform the jump bypass optimization. (bypass_conditional_jumps): New function. Call bypass_block with each suitable basic block in the CFG using a simple single pass. From-SVN: r54152 |
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| config | ||
| contrib | ||
| fastjar | ||
| gcc | ||
| include | ||
| INSTALL | ||
| 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.