rtl.h (target_rtl): Add x_static_reg_base_value.

gcc/
	* rtl.h (target_rtl): Add x_static_reg_base_value.
	* alias.c (static_reg_base_value): Redefine as a macro.

From-SVN: r162092

gcc/ChangeLog

 2010-07-12  Richard Sandiford  <rdsandiford@googlemail.com>
 
+	* rtl.h (target_rtl): Add x_static_reg_base_value.
+	* alias.c (static_reg_base_value): Redefine as a macro.
+
+2010-07-12  Richard Sandiford  <rdsandiford@googlemail.com>
+
 	* Makefile.in (reginfo.o): Don't depend on $(GGC_H) or gt-reginfo.h.
 	(GTFILES): Remove reginfo.c.
 	* rtl.h (target_rtl): Add x_top_of_stack.

gcc/alias.c

@@ -212,9 +212,8 @@ static rtx *new_reg_base_value;
    array.  */
 static GTY((deletable)) VEC(rtx,gc) *old_reg_base_value;
 
-/* Static hunks of RTL used by the aliasing code; these are initialized
-   once per function to avoid unnecessary RTL allocations.  */
-static GTY (()) rtx static_reg_base_value[FIRST_PSEUDO_REGISTER];
+#define static_reg_base_value \
+  (this_target_rtl->x_static_reg_base_value)
 
 #define REG_BASE_VALUE(X)				\
   (REGNO (X) < VEC_length (rtx, reg_base_value)		\

gcc/rtl.h

@@ -2041,6 +2041,10 @@ struct GTY(()) target_rtl {
 
   /* A sample (mem:M stack_pointer_rtx) rtx for each mode M.  */
   rtx x_top_of_stack[MAX_MACHINE_MODE];
+
+  /* Static hunks of RTL used by the aliasing code; these are treated
+     as persistent to avoid unnecessary RTL allocations.  */
+  rtx x_static_reg_base_value[FIRST_PSEUDO_REGISTER];
 };
 
 extern GTY(()) struct target_rtl default_target_rtl;