mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-03-19 04:00:29 +08:00
18aed06a02
* Makefile.in (tree-chrec.o): Depends on SCEV_H. * tree-chrec.c: Include tree-scalar-evolution.h. (chrec_convert): Instantiate the base and step before calling scev_probably_wraps_p that would fail on parametric evolutions. Collect all the fails into a single section failed_to_convert, print a diagnostic, and return chrec_dont_know instead of calling fold_convert. * tree-scalar-evolution.c (loop_closed_phi_def): New. (instantiate_parameters_1): Avoid instantiation of loop closed ssa phi nodes. (scev_const_prop): Don't replace the definition of a loop closed ssa phi node by itself, or by another loop closed ssa phi node. * tree-ssa-loop-niter.c (scev_probably_wraps_p, convert_step): Check that base and step are defined. From-SVN: r104092
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.