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| author | Stephen Clarke <stephen.clarke@superh.com> | 2003-06-18 19:43:55 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2003-06-18 20:43:55 +0100 |
| commit | fe3ad57221f647b880567025bf825dcca9b7174a (patch) | |
| tree | b7be589065a18041782f05367c05430c81cde781 /gcc/rtl.h | |
| parent | acd8e2d08fc5128d65776f04d40ba65eaa8dc76d (diff) | |
| download | gcc-fe3ad57221f647b880567025bf825dcca9b7174a.zip gcc-fe3ad57221f647b880567025bf825dcca9b7174a.tar.gz gcc-fe3ad57221f647b880567025bf825dcca9b7174a.tar.bz2 | |
bt-load.c: New file.
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
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -1965,6 +1965,9 @@ extern int flow2_completed; extern int reload_completed; +/* Nonzero after thread_prologue_and_epilogue_insns has run. */ +extern int epilogue_completed; + /* Set to 1 while reload_as_needed is operating. Required by some machines to handle any generated moves differently. */ @@ -2123,6 +2126,7 @@ extern rtx libcall_other_reg PARAMS ((rtx, rtx)); #ifdef BUFSIZ extern void loop_optimize PARAMS ((rtx, FILE *, int)); #endif +extern void branch_target_load_optimize (rtx, bool); extern void record_excess_regs PARAMS ((rtx, rtx, rtx *)); /* In function.c */ |