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fe3ad57221
2003-06-18 Stephen Clarke <stephen.clarke@superh.com>
J"orn Rennecke <joern.rennecke@superh.com>
* bt-load.c: New file.
* Makefile.in (OBJS): Include bt-load.o
(bt-load.o): Add dependencies.
* flags.h (flag_branch_target_load_optimize): Declare.
(flag_branch_target_load_optimize2): Likewise.
* hooks.c (hook_reg_class_void_no_regs): New function.
(hook_bool_bool_false): Likewise.
* hooks.h (hook_reg_class_void_no_regs, hook_bool_bool_false): Declare.
* rtl.h (branch_target_load_optimize): Declare.
* target-def.h (TARGET_BRANCH_TARGET_REGISTER_CLASS): Define.
(TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED): Likewise.
(TARGET_INITIALIZER): Include these.
* target.h (struct gcc_target): Add branch_target_register_class
and branch_target_register_callee_saved members.
* toplev.c (enum dump_file_index): Add DFI_branch_target_load
(dump_file) Add "tars" entry.
(flag_branch_target_load_optimize): New variable.
(flag_branch_target_load_optimize2): Likewise.
(lang_independent_options): Add entries for new options.
(rest_of_compilation): Call branch_target_load_optimize.
* doc/tm.texi (TARGET_BRANCH_TARGET_REGISTER_CLASS): Document.
(TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED): Likewise.
* doc/invoke.texi: Document -fbranch-target-load-optimize and
-fbranch-target-load-optimize2.
* rtl.h (epilogue_completed): Declare.
* recog.c (epilogue_completed): New variable.
* toplev.c (rest_of_compilation): Set it.
* flow.c (mark_regs_live_at_end): Use it.
* config/ia64/ia64.c (ia64_output_mi_thunk): Set it.
* config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
* config/sh/sh.c (sh_output_mi_thunk): Likewise.
* config/sparc/sparc.c (sparc_output_mi_thunk): Likewise.
* sh.c (shmedia_space_reserved_for_target_registers): New variable.
(sh_target_reg_class): New function.
(sh_optimize_target_register_callee_saved): Likwise.
(shmedia_target_regs_stack_space): Likewise.
(shmedia_reserve_space_for_target_registers_p): Likewise.
(shmedia_target_regs_stack_adjust): Likewise.
(TARGET_BRANCH_TARGET_REGISTER_CLASS): Override.
(TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED): Likewise.
(calc_live_regs): If flag_branch_target_load_optimize2 and
TARGET_SAVE_ALL_TARGET_REGS is enabled, and we have space reserved
for target registers, make sure that we save all target registers.
(sh_expand_prologue, sh_expand_epilogue): Take target register
optimizations into account. Collapse stack adjustments if that
is beneficial.
(initial_elimination_offset): Reserve space for target registers
if necessary.
* sh.h (SAVE_ALL_TR_BIT, TARGET_SAVE_ALL_TARGET_REGS): Define.
(OPTIMIZATION_OPTIONS): Enable flag_branch_target_load_optimize.
Co-Authored-By: J"orn Rennecke <joern.rennecke@superh.com>
From-SVN: r68165
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| boehm-gc | ||
| 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.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| 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.