diff options
| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-10-16 00:08:51 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-10-16 00:08:51 +0000 |
| commit | 3f4d644cad9690267e1f73e430cae3b01bcdd886 (patch) | |
| tree | 35e9d178ac30fae30efb3a75fce6b7fa5ed815f3 /gcc/jump.c | |
| parent | d11b8a7e6dda35ef0ca02a5b5f902d01b88ba41f (diff) | |
| download | gcc-3f4d644cad9690267e1f73e430cae3b01bcdd886.tar.gz | |
* flow.c (life_analysis_1): Do not clobber regs_ever_live after
reload. Never perform rescans of the insn chain after reload.
(propagate_block): Do not delete insn or create new autoinc addressing
modes after reload.
* jump.c (jump_optimize): Unconditionally use the code that was
previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
* reload1.c (reload): When reloading is finished, delete all
REG_DEAD and REG_UNUSED notes.
(emit_reload_insns): Delete all code that was conditional on
PRESERVE_DEATH_INFO_REGNO_P.
(no_longer_dead_regs): Delete variable.
(reload_cse_delete_death_notes): Delete function.
(reload_cse_no_longer_dead): Delete function.
(reload_cse_regs_1): Delete all code to handle deletion of death
notes.
(reload_cse_noop_set_p): Likewise.
(reload_cse_simplify_set): Likewise.
(reload_cse_simplify_operands): Likewise.
(reload_cse_move2add): Likewise.
* reorg.c (used_spill_regs): Delete declaration.
(max_label_num_after_reload): Delete declaration.
(find_dead_or_set_registers): Don't assume that spill regs are
dead at a CODE_LABEL.
* rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
even after reload.
* sched.c (sched_analyze_insn): Likewise.
(update_flow_info): Likewise.
* haifa-sched.c (sched_analyze_insn): Likewise.
(update_flow_info): Likewise.
* tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
* toplev.c (max_label_num_after_reload): Delete variable.
(rest_of_compilation): Don't set max_label_num_after_reload.
Call life_analysis after reload_cse_regs if optimizing.
* config/gmicro/gmicro.h: Delete comment referring to
PRESERVE_DEATH_INFO_REGNO_P.
* config/i386/i386.h: Likewise.
* config/m88k/m88k.h: Likewise.
* config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
* config/sh/sh.h: Likewise.
Accurate REG_DEAD notes after reload.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@23120 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/jump.c')
| -rw-r--r-- | gcc/jump.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/gcc/jump.c b/gcc/jump.c index 8ae0b0aed89..68842707008 100644 --- a/gcc/jump.c +++ b/gcc/jump.c @@ -480,12 +480,9 @@ jump_optimize (f, cross_jump, noop_moves, after_regscan) remove_death (dreg, trial); break; } -#ifdef PRESERVE_DEATH_INFO_REGNO_P - /* Deleting insn could lose a death-note for SREG - so don't do it if final needs accurate - death-notes. */ - if (PRESERVE_DEATH_INFO_REGNO_P (sreg) - && (trial = find_regno_note (insn, REG_DEAD, sreg))) + + /* Deleting insn could lose a death-note for SREG. */ + if ((trial = find_regno_note (insn, REG_DEAD, sreg))) { /* Change this into a USE so that we won't emit code for it, but still can keep the note. */ @@ -497,7 +494,6 @@ jump_optimize (f, cross_jump, noop_moves, after_regscan) XEXP (trial, 1) = NULL_RTX; } else -#endif delete_insn (insn); } } |