From patchwork Fri Nov 26 19:19:08 2010
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Subject: Add static size report when using -fstack-usage for ARM targets
Date: Fri, 26 Nov 2010 09:19:08 -0000
From: Thomas Klein <th.r.klein@web.de>
X-Patchwork-Id: 73218
Message-Id: <4CF0082C.9030500@web.de>
To: Richard Earnshaw <rearnsha@arm.com>
Cc: gcc-patches@gcc.gnu.org

Hello

Hope this is more matching the way it should.
Please let me know if I'm wrong here.

regards
   Thomas


2010-11-26  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 167184)
+++ gcc/config/arm/arm.c        (working copy)
@@ -15765,6 +15765,10 @@ 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
@@ -20577,6 +20581,10 @@ 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)