From: DJ Delorie <dj@redhat.com>
Date: Fri, 8 Jan 2010 19:02:28 +0000 (-0500)
Subject: sh.c (sh_expand_epilogue): Fix interrupt handler register popping order.
X-Git-Tag: releases/gcc-4.5.0~1334
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6a62ca52285abbd6295a31a62bc1358e902979c9;p=thirdparty%2Fgcc.git

sh.c (sh_expand_epilogue): Fix interrupt handler register popping order.

* config/sh/sh.c (sh_expand_epilogue): Fix interrupt handler
register popping order.

From-SVN: r155742
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4f7f36f80486..fdf4c850516d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2010-01-08  DJ Delorie  <dj@redhat.com>
+
+	* config/sh/sh.c (sh_expand_epilogue): Fix interrupt handler
+	register popping order.
+
 2010-01-08  Richard Guenther  <rguenther@suse.de>
 
 	PR lto/42528
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index 5fe752eac200..aaa745dbbb92 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -7254,13 +7254,13 @@ sh_expand_epilogue (bool sibcall_p)
 	  pop (PR_REG);
 	}
 
-      /* Banked registers are poped first to avoid being scheduled in the
+      /* Banked registers are popped first to avoid being scheduled in the
 	 delay slot. RTE switches banks before the ds instruction.  */
       if (current_function_interrupt)
 	{
-	  for (i = FIRST_BANKED_REG; i <= LAST_BANKED_REG; i++)
-	    if (TEST_HARD_REG_BIT (live_regs_mask, i)) 
-	      pop (LAST_BANKED_REG - i);
+	  for (i = LAST_BANKED_REG; i >= FIRST_BANKED_REG; i--)
+	    if (TEST_HARD_REG_BIT (live_regs_mask, i))
+	      pop (i);
 
 	  last_reg = FIRST_PSEUDO_REGISTER - LAST_BANKED_REG - 1;
 	}