haifa-sched.c (schedule_insns): Don't recompute reg info after reload.

* haifa-sched.c (schedule_insns): Don't recompute reg info after reload. From-SVN: r31675

haifa-sched.c (schedule_insns): Don't recompute reg info after reload.
* haifa-sched.c (schedule_insns): Don't recompute reg info after reload. From-SVN: r31675
47e6ea66 · Richard Henderson · Richard Henderson · ae20388c · 47e6ea66 · 47e6ea66
Commit 47e6ea66 authored Jan 28, 2000 by Richard Henderson Committed by Richard Henderson Jan 28, 2000
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gcc/ChangeLog
+3 -0

gcc/haifa-sched.c
+4 -1

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -4,6 +4,9 @@
 	* flow.c (mark_regs_live_at_end): Likewise.  Force BLKmode
 	FUNCTION_VALUE result to DECL_RESULT's mode.

+	* haifa-sched.c (schedule_insns): Don't recompute reg info
+	after reload.
+
 2000-01-28  Zack Weinberg  <zack@wolery.cumb.org>

 	* configure.in: Make --enable-cpplib the default.

--- a/gcc/haifa-sched.c
+++ b/gcc/haifa-sched.c
@@ -6975,8 +6975,11 @@ schedule_insns (dump_file)
 	SET_BIT (blocks, rgn_bb_table[RGN_BLOCKS (rgn)]);
 	RESET_BIT (large_region_blocks, rgn_bb_table[RGN_BLOCKS (rgn)]);

+	/* Don't update reg info after reload, since that affects
+	   regs_ever_live, which should not change after reload.  */
 	update_life_info (blocks, UPDATE_LIFE_LOCAL,
-			  PROP_DEATH_NOTES | PROP_REG_INFO);
+			  (reload_completed ? PROP_DEATH_NOTES
+			   : PROP_DEATH_NOTES | PROP_REG_INFO));

 	/* In the single block case, the count of registers that died should
 	   not have changed during the schedule.  */