From patchwork Wed Nov 24 16:50:07 2010
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Subject: Add static size report when using -fstack-usage for ARM targets
Date: Wed, 24 Nov 2010 06:50:07 -0000
From: Thomas Klein <th.r.klein@web.de>
X-Patchwork-Id: 72909
Message-Id: <4CED423F.2020508@web.de>
To: gcc-patches@gcc.gnu.org

Hello

Sorry for sending this previously to the wrong mailing list.
I've tried to correct and reduce the lines of code here.
The static size is in both cases "outgoing_args - saved_args".

regards
   Thomas

2010-11-24  Thomas Klein <th.r.klein@web.de>

     * config/arm/arm.c (arm_expand_prologue): Report the static stack 
size if -fstack-usage is used
     * config/arm/arm.c (thumb1_expand_prologue): Report the static 
stack size if -fstack-usage is used


Index: gcc/config/arm/arm.c
===================================================================
--- gcc/config/arm/arm.c        (revision 167110)
+++ gcc/config/arm/arm.c        (working copy)
@@ -15726,6 +15726,10 @@ arm_expand_prologue (void)
         }
      }

+  if (flag_stack_usage)
+    current_function_static_stack_size = offsets->outgoing_args
+                                       - offsets->saved_args;
+
    if (offsets->outgoing_args != offsets->saved_args + saved_regs)
      {
        /* This add can produce multiple insns for a large constant, so we
@@ -20538,6 +20542,10 @@ thumb1_expand_prologue (void)
      emit_move_insn (gen_rtx_REG (Pmode, ARM_HARD_FRAME_POINTER_REGNUM),
                     stack_pointer_rtx);

+  if (flag_stack_usage)
+    current_function_static_stack_size = offsets->outgoing_args
+                                       - offsets->saved_args;
+
    amount = offsets->outgoing_args - offsets->saved_regs;
    amount -= 4 * thumb1_extra_regs_pushed (offsets, true);
    if (amount)