s390.c (s390_emit_prologue): Report the stack size if -fstack-usage is used.

2010-11-10  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* gcc/config/s390/s390.c (s390_emit_prologue): Report the stack
	size if -fstack-usage is used.

2010-11-10  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* gcc.dg/stack-usage-1.c: Define SIZE for s390 and s390x.

From-SVN: r166531

gcc/ChangeLog

+2010-11-10  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
+
+	* gcc/config/s390/s390.c (s390_emit_prologue): Report the stack
+	size if -fstack-usage is used.
+
 2010-11-10  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/46398

gcc/config/s390/s390.c

@@ -7948,6 +7948,9 @@ s390_emit_prologue (void)
   if (!TARGET_PACKED_STACK)
     next_fpr = cfun_save_high_fprs_p ? 31 : 0;
 
+  if (flag_stack_usage)
+    current_function_static_stack_size = cfun_frame_layout.frame_size;
+
   /* Decrement stack pointer.  */
 
   if (cfun_frame_layout.frame_size > 0)

gcc/testsuite/ChangeLog

+2010-11-10  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
+
+	* gcc.dg/stack-usage-1.c: Define SIZE for s390 and s390x.
+
 2010-11-10  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gnat.dg/unchecked_convert7.adb: New test.

gcc/testsuite/gcc.dg/stack-usage-1.c

@@ -35,6 +35,10 @@
 #  define SIZE 240
 #elif defined (__AVR__)
 #  define SIZE 254
+#elif defined (__s390x__)
+#  define SIZE 96  /* 256 - 160 bytes for register save area */
+#elif defined (__s390__)
+#  define SIZE 160 /* 256 -  96 bytes for register save area */
 #else
 #  define SIZE 256
 #endif