--- a/gcc/lra-int.h	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/lra-int.h	Thu Oct 25 07:37:49 2018 +0900
@@ -1,5 +1,5 @@
 /* Local Register Allocator (LRA) intercommunication header file.
-   Copyright (C) 2010-2017 Free Software Foundation, Inc.
+   Copyright (C) 2010-2018 Free Software Foundation, Inc.
    Contributed by Vladimir Makarov <vmakarov@redhat.com>.
 
 This file is part of GCC.
@@ -106,7 +106,7 @@
      they do not conflict.  */
   int val;
   /* Offset from relative eliminate register to pesudo reg.  */
-  int offset;
+  poly_int64 offset;
   /* These members are set up in lra-lives.c and updated in
      lra-coalesce.c.  */
   /* The biggest size mode in which each pseudo reg is referred in
@@ -122,6 +122,8 @@
 /* References to the common info about each register.  */
 extern struct lra_reg *lra_reg_info;
 
+extern HARD_REG_SET hard_regs_spilled_into;
+
 /* Static info about each insn operand (common for all insns with the
    same ICODE).	 Warning: if the structure definition is changed, the
    initializer for debug_operand_data in lra.c should be changed
@@ -166,6 +168,8 @@
   /* True if there is an early clobber alternative for this
      operand.  */
   unsigned int early_clobber : 1;
+  /* True if the reg is clobber highed by the operand.  */
+  unsigned int clobber_high : 1;
   /* The corresponding regno of the register.  */
   int regno;
   /* Next reg info of the same insn.  */
@@ -202,18 +206,23 @@
   const struct operand_alternative *operand_alternative;
 };
 
+/* Negative insn alternative numbers used for special cases.  */
+#define LRA_UNKNOWN_ALT -1
+#define LRA_NON_CLOBBERED_ALT -2
+
 /* LRA internal info about an insn (LRA internal insn
    representation).  */
 struct lra_insn_recog_data
 {
   /* The insn code.  */
   int icode;
-  /* The alternative should be used for the insn, -1 if invalid, or we
-     should try to use any alternative, or the insn is a debug
-     insn.  */
+  /* The alternative should be used for the insn, LRA_UNKNOWN_ALT if
+     unknown, or we should assume any alternative, or the insn is a
+     debug insn.  LRA_NON_CLOBBERED_ALT means ignoring any earlier
+     clobbers for the insn.  */
   int used_insn_alternative;
   /* SP offset before the insn relative to one at the func start.  */
-  HOST_WIDE_INT sp_offset;
+  poly_int64 sp_offset;
   /* The insn itself.  */
   rtx_insn *insn;
   /* Common data for insns with the same ICODE.  Asm insns (their
@@ -309,7 +318,7 @@
 extern void lra_process_new_insns (rtx_insn *, rtx_insn *, rtx_insn *,
 				   const char *);
 
-extern bool lra_substitute_pseudo (rtx *, int, rtx, bool);
+extern bool lra_substitute_pseudo (rtx *, int, rtx, bool, bool);
 extern bool lra_substitute_pseudo_within_insn (rtx_insn *, int, rtx, bool);
 
 extern lra_insn_recog_data_t lra_set_insn_recog_data (rtx_insn *);
@@ -349,6 +358,7 @@
 extern bool lra_constraints (bool);
 extern void lra_constraints_init (void);
 extern void lra_constraints_finish (void);
+extern bool spill_hard_reg_in_range (int, enum reg_class, rtx_insn *, rtx_insn *);
 extern void lra_inheritance (void);
 extern bool lra_undo_inheritance (void);
 
@@ -382,8 +392,8 @@
 extern int lra_assignment_iter;
 extern int lra_assignment_iter_after_spill;
 extern void lra_setup_reg_renumber (int, int, bool);
-extern bool lra_assign (void);
-
+extern bool lra_assign (bool &);
+extern bool lra_split_hard_reg_for (void);
 
 /* lra-coalesce.c: */
 
@@ -406,8 +416,8 @@
 extern void lra_debug_elim_table (void);
 extern int lra_get_elimination_hard_regno (int);
 extern rtx lra_eliminate_regs_1 (rtx_insn *, rtx, machine_mode,
-				 bool, bool, HOST_WIDE_INT, bool);
-extern void eliminate_regs_in_insn (rtx_insn *insn, bool, bool, HOST_WIDE_INT);
+				 bool, bool, poly_int64, bool);
+extern void eliminate_regs_in_insn (rtx_insn *insn, bool, bool, poly_int64);
 extern void lra_eliminate (bool, bool);
 
 extern void lra_eliminate_reg_if_possible (rtx *);
@@ -493,7 +503,7 @@
 
 /* Update offset from pseudos with VAL by INCR.  */
 static inline void
-lra_update_reg_val_offset (int val, int incr)
+lra_update_reg_val_offset (int val, poly_int64 incr)
 {
   int i;
 
@@ -506,10 +516,10 @@
 
 /* Return true if register content is equal to VAL with OFFSET.  */
 static inline bool
-lra_reg_val_equal_p (int regno, int val, int offset)
+lra_reg_val_equal_p (int regno, int val, poly_int64 offset)
 {
   if (lra_reg_info[regno].val == val
-      && lra_reg_info[regno].offset == offset)
+      && known_eq (lra_reg_info[regno].offset, offset))
     return true;
 
   return false;