From: Nick Clifton <nickc@redhat.com>
Date: Wed, 27 Apr 2011 09:06:24 +0000 (+0000)
Subject: mcore.h (REGNO_REG_CLASS): Do not index beyond the end of the regno_reg_class array.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e1ea745113840663b7aacd5b1b5abd4ad6f3d0bb;p=gcc.git

mcore.h (REGNO_REG_CLASS): Do not index beyond the end of the regno_reg_class array.

	* config/mcore/mcore.h (REGNO_REG_CLASS): Do not index beyond the
	end of the regno_reg_class array.

From-SVN: r173015
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3a358d9d750..9c06f8be556 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2011-04-27  Nick Clifton  <nickc@redhat.com>
+
+	* config/mcore/mcore.h (REGNO_REG_CLASS): Do not index beyond the
+	end of the regno_reg_class array.
+
 2011-04-27  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c/48742
diff --git a/gcc/config/mcore/mcore.h b/gcc/config/mcore/mcore.h
index 278a8ccf0dc..398dcedfe22 100644
--- a/gcc/config/mcore/mcore.h
+++ b/gcc/config/mcore/mcore.h
@@ -357,7 +357,7 @@ enum reg_class
    or could index an array.  */
 
 extern const enum reg_class regno_reg_class[FIRST_PSEUDO_REGISTER];
-#define REGNO_REG_CLASS(REGNO) regno_reg_class[REGNO]
+#define REGNO_REG_CLASS(REGNO) ((REGNO) < FIRST_PSEUDO_REGISTER ? regno_reg_class[REGNO] : NO_REGS)
 
 /* When this hook returns true for MODE, the compiler allows
    registers explicitly used in the rtl to be used as spill registers