S/390: New mcount call sequence for z900+ CPUs in 31-bit mode.

gcc/ChangeLog:

2016-02-15  Marcin Kościelnicki  <koriakin@0x04.net>

	* config/s390/s390.c (s390_function_profiler): Add a new sequence
	for z900+ CPUs in 31-bit mode.

From-SVN: r233422

gcc/ChangeLog

 2016-02-15  Marcin Kościelnicki  <koriakin@0x04.net>
 
+	* config/s390/s390.c (s390_function_profiler): Add a new sequence
+	for z900+ CPUs in 31-bit mode.
+
+2016-02-15  Marcin Kościelnicki  <koriakin@0x04.net>
+
 	* common/config/s390/s390-common.c (s390_supports_split_stack):
 	New function.
 	(TARGET_SUPPORTS_SPLIT_STACK): New macro.

gcc/config/s390/s390.c

@@ -12205,6 +12205,13 @@ s390_function_profiler (FILE *file, int labelno)
       output_asm_insn ("brasl\t%0,%4", op);
       output_asm_insn ("lg\t%0,%1", op);
     }
+  else if (TARGET_CPU_ZARCH)
+    {
+      output_asm_insn ("st\t%0,%1", op);
+      output_asm_insn ("larl\t%2,%3", op);
+      output_asm_insn ("brasl\t%0,%4", op);
+      output_asm_insn ("l\t%0,%1", op);
+    }
   else if (!flag_pic)
     {
       op[6] = gen_label_rtx ();