sh.c (sh_expand_prologue): Set current_function_static_stack_size.

	* config/sh/sh.c (sh_expand_prologue): Set
	current_function_static_stack_size.

From-SVN: r164819

gcc/ChangeLog

+2010-09-30  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+	* config/sh/sh.c (sh_expand_prologue): Set
+	current_function_static_stack_size.
+
 2010-09-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* configure.ac: Check for Solaris 8 ld with .hidden support.

gcc/config/sh/sh.c

@@ -6860,6 +6860,7 @@ sh_expand_prologue (void)
   int d_rounding = 0;
   int save_flags = target_flags;
   int pretend_args;
+  int stack_usage;
   tree sp_switch_attr
     = lookup_attribute ("sp_switch", DECL_ATTRIBUTES (current_function_decl));
 
@@ -6876,6 +6877,7 @@ sh_expand_prologue (void)
   output_stack_adjust (-pretend_args
 		       - crtl->args.info.stack_regs * 8,
 		       stack_pointer_rtx, 0, NULL, false);
+  stack_usage = pretend_args + crtl->args.info.stack_regs * 8;
 
   if (TARGET_SHCOMPACT && flag_pic && crtl->args.info.call_cookie)
     /* We're going to use the PIC register to load the address of the
@@ -6934,6 +6936,7 @@ sh_expand_prologue (void)
 			))
 		break;
 	      push (rn);
+	      stack_usage += GET_MODE_SIZE (SImode);
 	    }
 	}
     }
@@ -7006,6 +7009,7 @@ sh_expand_prologue (void)
 
       output_stack_adjust (-(save_size + d_rounding), stack_pointer_rtx,
 			   0, NULL, true);
+      stack_usage += save_size + d_rounding;
 
       sh5_schedule_saves (&live_regs_mask, &schedule, offset_base);
       tmp_pnt = schedule.temps;
@@ -7157,7 +7161,10 @@ sh_expand_prologue (void)
       gcc_assert (entry->offset == d_rounding);
     }
   else
-    push_regs (&live_regs_mask, current_function_interrupt);
+    {
+      push_regs (&live_regs_mask, current_function_interrupt);
+      stack_usage += d;
+    }
 
   if (flag_pic && df_regs_ever_live_p (PIC_OFFSET_TABLE_REGNUM))
     emit_insn (gen_GOTaddr2picreg ());
@@ -7181,6 +7188,7 @@ sh_expand_prologue (void)
 
   output_stack_adjust (-rounded_frame_size (d) + d_rounding,
 		       stack_pointer_rtx, 0, NULL, true);
+  stack_usage += rounded_frame_size (d) - d_rounding;
 
   if (frame_pointer_needed)
     frame_insn (GEN_MOV (hard_frame_pointer_rtx, stack_pointer_rtx));
@@ -7194,6 +7202,9 @@ sh_expand_prologue (void)
 		      "__GCC_shcompact_incoming_args", SFUNC_GOT);
       emit_insn (gen_shcompact_incoming_args ());
     }
+
+  if (flag_stack_usage)
+    current_function_static_stack_size = stack_usage;
 }
 
 void