Put back requires_stack_frame_p used by i386.c

	* shrink-wrap.c (requires_stack_frame_p): Remove static.
	* shrink-wrap.h (requires_stack_frame_p): Put back.

From-SVN: r227659

gcc/ChangeLog

+2015-09-10  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* shrink-wrap.c (requires_stack_frame_p): Remove static.
+	* shrink-wrap.h (requires_stack_frame_p): Put back.
+
 2015-09-10  Richard Sandiford  <richard.sandiford@arm.com>
 
 	* reload1.c (elimination_costs_in_insn): Locally turn

gcc/shrink-wrap.c

@@ -68,7 +68,7 @@ along with GCC; see the file COPYING3.  If not see
    PROLOGUE_USED contains the hard registers used in the function
    prologue.  SET_UP_BY_PROLOGUE is the set of registers we expect the
    prologue to set up for the function.  */
-static bool
+bool
 requires_stack_frame_p (rtx_insn *insn, HARD_REG_SET prologue_used,
 			HARD_REG_SET set_up_by_prologue)
 {

gcc/shrink-wrap.h

@@ -23,6 +23,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "function.h"
 
 /* In shrink-wrap.c.  */
+extern bool requires_stack_frame_p (rtx_insn *, HARD_REG_SET, HARD_REG_SET);
 extern void try_shrink_wrapping (edge *entry_edge, edge orig_entry_edge,
 				 bitmap_head *bb_flags, rtx_insn *prologue_seq);
 extern edge get_unconverted_simple_return (edge, bitmap_head,