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--- gcc-3.4.6/gcc/function.c 2013-05-19 20:08:05.000000000 +0200
+++ gcc/function.c 2013-05-19 20:23:32.000000000 +0200
@@ -8153,3 +8153,28 @@
}
#include "gt-function.h"
+
+/* begin-GG-local: explicit register specification for parameters */
+/* Return 1 if an argument for the current function was passed in
+ register REGNO. */
+
+int
+function_arg_regno_p (int regno)
+{
+ tree parm = DECL_ARGUMENTS (current_function_decl);
+ for (; parm; parm = TREE_CHAIN (parm))
+ {
+ rtx incoming = DECL_INCOMING_RTL (parm);
+ if (GET_CODE (incoming) == REG)
+ {
+ int incoming_reg;
+ incoming_reg = REGNO (incoming);
+ if (regno >= incoming_reg &&
+ regno < incoming_reg + HARD_REGNO_NREGS (incoming_reg,
+ GET_MODE (incoming)))
+ return 1;
+ }
+ }
+ return 0;
+}
+/* end-GG-local */
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