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haifa-sched.c (sched_reg_n_calls_crossed): Delete.

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* haifa-sched.c (sched_reg_n_calls_crossed): Delete.
        (sched_reg_live_length, sched_reg_basic_block): Delete.
        (current_block_num, bb_live_regs, old_live_regs): Delete.
        (dead_notes, struct sometimes): Delete.
        (sched_note_set, birthing_insn_p): Delete.
        (adjust_priority): Gut useless reg lifetime code.
        (create_reg_dead_note, attach_deaths): Delete.
        (attach_deaths_insn, new_sometimes_live): Delete.
        (finish_sometimes_live): Delete.
        (find_pre_sched_live, find_post_sched_live): Delete.
        (update_reg_usage): Delete.
        (find_insn_reg_weight): New, from corpse of find_pre_sched_live.
        (schedule_insns): Delete reg lifetime code.
        (sched_analyze): Use REG_SAVE_NOTE to stuff NOTE_INSN notes away.
        (unlink_other_notes): Adjust REG_NOTE commentary.
        (reemit_notes): Use REG_SAVE_NOTE.
        (schedule_block): Likewise.
        (schedule_region): Allocate bitmap of blocks in region.  Use
        count_or_remove_death_notes.  Use update_life_info.

        * rtl.h (REG_SAVE_NOTE): New.
        * rtl.c (reg_note_name): Update.

From-SVN: r29894
This commit is contained in:
Richard Henderson 1999-10-10 16:45:27 -07:00 committed by Richard Henderson
parent 715e7fbc83
commit c46a37c417
4 changed files with 108 additions and 1066 deletions
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25
gcc/ChangeLog
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@ -1,3 +1,28 @@
Sun Oct 10 16:37:01 1999 Richard Henderson <rth@cygnus.com>
* haifa-sched.c (sched_reg_n_calls_crossed): Delete.
(sched_reg_live_length, sched_reg_basic_block): Delete.
(current_block_num, bb_live_regs, old_live_regs): Delete.
(dead_notes, struct sometimes): Delete.
(sched_note_set, birthing_insn_p): Delete.
(adjust_priority): Gut useless reg lifetime code.
(create_reg_dead_note, attach_deaths): Delete.
(attach_deaths_insn, new_sometimes_live): Delete.
(finish_sometimes_live): Delete.
(find_pre_sched_live, find_post_sched_live): Delete.
(update_reg_usage): Delete.
(find_insn_reg_weight): New, from corpse of find_pre_sched_live.
(schedule_insns): Delete reg lifetime code.
(sched_analyze): Use REG_SAVE_NOTE to stuff NOTE_INSN notes away.
(unlink_other_notes): Adjust REG_NOTE commentary.
(reemit_notes): Use REG_SAVE_NOTE.
(schedule_block): Likewise.
(schedule_region): Allocate bitmap of blocks in region. Use
count_or_remove_death_notes. Use update_life_info.
* rtl.h (REG_SAVE_NOTE): New.
* rtl.c (reg_note_name): Update.
Sun Oct 10 16:14:16 1999 Richard Henderson <rth@cygnus.com>
* combine.c (refresh_blocks, need_refresh): New.

1136
gcc/haifa-sched.c
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File diff suppressed because it is too large Load Diff

2
gcc/rtl.c
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@ -257,7 +257,7 @@ const char * const reg_note_name[] = { "", "REG_DEAD", "REG_INC", "REG_EQUIV", "
"REG_EXEC_COUNT", "REG_NOALIAS", "REG_SAVE_AREA",
"REG_BR_PRED", "REG_EH_CONTEXT",
"REG_FRAME_RELATED_EXPR", "REG_EH_REGION",
"REG_EH_RETHROW" };
"REG_EH_RETHROW", "REG_SAVE_NOTE" };
static void dump_and_abort PROTO((int, int, FILE *)) ATTRIBUTE_NORETURN;
static void read_name PROTO((char *, FILE *));

11
gcc/rtl.h
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@ -456,8 +456,8 @@ extern void rtvec_check_failed_bounds PROTO((rtvec, int,
flags computed by get_jump_flags() after dbr scheduling is complete.
REG_FRAME_RELATED_EXPR is attached to insns that are RTX_FRAME_RELATED_P,
but are too complex for DWARF to interpret what they imply. The attached
rtx is used instead of intuition. */
/* REG_EH_REGION is used to indicate what exception region an INSN
rtx is used instead of intuition.
REG_EH_REGION is used to indicate what exception region an INSN
belongs in. This can be used to indicate what region a call may throw
to. a REGION of 0 indicates that a call cannot throw at all.
a REGION of -1 indicates that it cannot throw, nor will it execute
@ -465,8 +465,9 @@ extern void rtvec_check_failed_bounds PROTO((rtvec, int,
REG_EH_RETHROW is used to indicate that a call is actually a
call to rethrow, and specifies the rethrow symbol for the region
the rethrow is targetting. This provides a way to generate the
non standard flow edges required for a rethrow. */
non standard flow edges required for a rethrow.
REG_SAVE_NOTE is used by haifa-sched to save NOTE_INSN notes
across scheduling. */
#define REG_NOTES(INSN) XEXP(INSN, 6)
@ -481,7 +482,7 @@ enum reg_note { REG_DEAD = 1, REG_INC = 2, REG_EQUIV = 3, REG_WAS_0 = 4,
REG_EXEC_COUNT = 17, REG_NOALIAS = 18, REG_SAVE_AREA = 19,
REG_BR_PRED = 20, REG_EH_CONTEXT = 21,
REG_FRAME_RELATED_EXPR = 22, REG_EH_REGION = 23,
REG_EH_RETHROW = 24 };
REG_EH_RETHROW = 24, REG_SAVE_NOTE = 25 };
/* The base value for branch probability notes. */
#define REG_BR_PROB_BASE 10000