i386.h (STATIC_CHAIN_REGNUM): Use R10_REG and CX_REG.

2008-03-23  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.h (STATIC_CHAIN_REGNUM): Use R10_REG and
	CX_REG.

From-SVN: r133468

gcc/ChangeLog

+2008-03-23  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/i386.h (STATIC_CHAIN_REGNUM): Use R10_REG and
+	CX_REG.
+
 2008-03-23  Zuxy Meng <zuxy.meng@gmail.com>
 
 	* doc/extend.texi (Function Attributes): Add missing comma in the

gcc/config/i386/i386.h

@@ -1234,7 +1234,7 @@ do {									\
 /* Register in which static-chain is passed to a function.
    We do use ECX as static chain register for 32 bit ABI.  On the
    64bit ABI, ECX is an argument register, so we use R10 instead.  */
-#define STATIC_CHAIN_REGNUM (TARGET_64BIT ? FIRST_REX_INT_REG + 10 - 8 : 2)
+#define STATIC_CHAIN_REGNUM (TARGET_64BIT ? R10_REG : CX_REG)
 
 /* Register to hold the addressing base for position independent
    code access to data items.  We don't use PIC pointer for 64bit