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* invoke.texi (-fstrict-aliasing): Document. * rtl.texi (MEM_ALIAS_SET): Document. * flags.h (flag_strict_aliasing): Declare. * toplev.c (flag_strict_aliasing): Define. (f_options): Add -strict-aliasing. (main): Set flag_strict_aliasing if -O2 or higher. * tree.h (tree_type): Add alias_set field. (TYPE_ALIAS_SET): New macro. (TYPE_ALIAS_SET_KNOWN_P): Likewise. (get_alias_set): Declare. * tree.c (lang_get_alias_set): Define. (make_node): Initialize TYPE_ALIAS_SET. (get_alias_set): New function. * print-tree.c (print_node): Dump the alias set for a type. * c-tree.h (c_get_alias_set): Declare. * c-common.c (c_get_alias_set): New function. * c-decl.c (init_decl_processing): Set lang_get_alias_set. * expr.c (protect_from_queue): Propogage alias sets. (expand_assignment): Calculate alias set for new MEMs. (expand_expr): Likewise. * function.c (put_var_into_stack): Likewise. (put_reg_into_stack): Likewise. (gen_mem_addressof): Likewise. (assign_parms): Likewise. * stmt.c (expand_decl): Likewise. * varasm.c (make_decl_rtl): Eliminate redundant clearing of DECL_RTL. Calculate alias set for new MEMs. * rtl.def (REG): Add dummy operand. (MEM): Add extra operand to store the MEM_ALIAS_SET. * rtl.h (MEM_ALIAS_SET): New macro. (gen_rtx_MEM): Declare. * emit-rtl.c (gen_rtx_MEM): New function. * gengenrtl.c (sepcial_rtx): Make MEMs special. * alias.c (CHECK_ALIAS_SETS_FOR_CONSISTENCY): New macro. (DIFFERENT_ALIAS_SETS_P): Likewise. (canon_rtx): Propogate the alias set to the new MEM. (true_dependence): Check the alias sets. (anti_dependence): Likewise. (output_dependence): Likewise. * explow.c (stabilize): Progoate alias sets. * integrate.c (copy_rtx_and_substitute): Likewise. * final.c (alter_subreg): Make sure not to leave MEM_IN_STRUCT_P in an unpredictable state. Propogate alias sets. * reload1.c (reload): Clear MEM_ALIAS_SET for new MEMs about which we have no alias information. From-SVN: r20719 |
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config | ||
contrib | ||
etc | ||
gcc | ||
include | ||
INSTALL | ||
libf2c | ||
libiberty | ||
libio | ||
libstdc++ | ||
texinfo | ||
xiberty | ||
.cvsignore | ||
ChangeLog | ||
config-ml.in | ||
config.guess | ||
config.sub | ||
configure | ||
configure.in | ||
COPYING | ||
COPYING.LIB | ||
install-sh | ||
ltconfig | ||
ltmain.sh | ||
MAINTAINERS | ||
Makefile.in | ||
missing | ||
mkinstalldirs | ||
move-if-change | ||
README | ||
symlink-tree | ||
ylwrap |
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.