mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-03-18 16:41:12 +08:00
b53978a3ee
* Makefile.in (OBJS): Added dce.o. (ssa.o): Updated target to include ssa.h. (flow.o): Likewise. (toplev.o): Likewise. (dce.o): Created target. * basic-block.h: Added comments. (INVALID_BLOCK): Added definition. (connect_infinite_loops_to_exit): Added declaration. Moved SSA declarations to ssa.h. * flow.c: Added inclusion of ssa.h. (struct depth_first_search_dsS, depth_first_search_ds): Added definitions. (compute_immediate_postdominators): Added definition. (connect_infinite_loops_to_exit): Likewise. (flow_dfs_compute_reverse_init): Likewise. (flow_dfs_compute_reverse_add_bb): Likewise. (flow_dfs_compute_reverse_execute): Likewise. (flow_dfs_compute_reverse_finish): Likewise. * rtl.h (rtx/in_struct): Added use to determine insn necessity. (LABEL_P): Added definition. (JUMP_P): Likewise. (NOTE_P): Likewise. (BARRIER_P): Likewise. (JUMP_TABLE_DATA_P): Likewise. (INSN_DEAD_CODE_P): Likewise. * ssa.c: Replaced inclusions with ssa.h inclusion. (CONVERT_HARD_REGISTER_TO_SSA_P): Moved to ssa.h. (rename_registers): Removed unnecessary variables. * ssa.h: Created by moving declarations from ssa.c and basic-block.h. * timevar.def: Defined TV_DEAD_CODE_ELIM. * toplev.c: Added ssa.h inclusion. (dump_file_index): Added DFI_dce. (dump_file): Added "dce" entry. Defined flag_ssa. (f_options): Added dce entry. * invoke.texi: Document -fdce. Emphasize experimental status of -fssa. Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r35419
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. Check the INSTALL directory for detailed configuration and installation instructions. 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.