From: Tristan Gingold <gingold@adacore.com>
Date: Tue, 15 May 2012 07:57:57 +0000 (+0000)
Subject: ira-color.c (move_spill_restore): Add a guard.
X-Git-Tag: upstream/12.2.0~76307
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=094aaeabfdbe5db85c21d072eb1c2175621fb369;p=platform%2Fupstream%2Fgcc.git

ira-color.c (move_spill_restore): Add a guard.

2012-05-15  Tristan Gingold  <gingold@adacore.com>

        * ira-color.c (move_spill_restore): Add a guard.

From-SVN: r187500
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 608a68a..9b7d499 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
 2012-05-15  Tristan Gingold  <gingold@adacore.com>
 
+	* ira-color.c (move_spill_restore): Add a guard.
+
+2012-05-15  Tristan Gingold  <gingold@adacore.com>
+
 	* config/ia64/ia64.c (ia64_emit_probe_stack_range): Adjust calls to
 	plus_constant.
 
diff --git a/gcc/ira-color.c b/gcc/ira-color.c
index 45f5244..300c3b8 100644
--- a/gcc/ira-color.c
+++ b/gcc/ira-color.c
@@ -2941,8 +2941,9 @@ move_spill_restore (void)
 		 copies and the reload pass can spill the allocno set
 		 by copy although the allocno will not get memory
 		 slot.  */
-	      || ira_reg_equiv_invariant_p[regno]
-	      || ira_reg_equiv_const[regno] != NULL_RTX
+	      || (regno < ira_reg_equiv_len
+		  && (ira_reg_equiv_invariant_p[regno]
+		      || ira_reg_equiv_const[regno] != NULL_RTX))
 	      || !bitmap_bit_p (loop_node->border_allocnos, ALLOCNO_NUM (a)))
 	    continue;
 	  mode = ALLOCNO_MODE (a);