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PATCH: Restore GCC 4.7 bootstrap on x86


BOOL_BITFIELD isn't defined when building libgcc.  I checked in this
patch to restore GCC 4.7 bootstrap on x86.  GCC 4.6 is OK.


H.J.
---
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 196998)
+++ ChangeLog	(working copy)
@@ -1,5 +1,10 @@
 2013-03-22  H.J. Lu  <hongjiu.lu@intel.com>
 
+	* config/i386/i386.h (ix86_args): Define only if USED_FOR_TARGET
+	isn't defined.
+
+2013-03-22  H.J. Lu  <hongjiu.lu@intel.com>
+
 	PR target/56560
 	* config/i386/i386.c (init_cumulative_args): Also set
 	cum->callee_return_avx256_p.
Index: config/i386/i386.h
===================================================================
--- config/i386/i386.h	(revision 196998)
+++ config/i386/i386.h	(working copy)
@@ -1474,6 +1474,7 @@ enum reg_class
 /* 1 if N is a possible register number for function argument passing.  */
 #define FUNCTION_ARG_REGNO_P(N) ix86_function_arg_regno_p (N)
 
+#ifndef USED_FOR_TARGET
 /* Define a data type for recording info about an argument list
    during the scan of that argument list.  This data type should
    hold all necessary information about the function itself
@@ -1507,6 +1508,7 @@ typedef struct ix86_args {
   /* Nonzero if it returns 256bit AVX modes.  */
   BOOL_BITFIELD callee_return_avx256_p : 1;
 } CUMULATIVE_ARGS;
+#endif
 
 /* Initialize a variable CUM of type CUMULATIVE_ARGS
    for a call to a function whose data type is FNTYPE.


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