--- a/gcc/config/ia64/ia64.h	Thu Oct 25 07:37:49 2018 +0900
+++ b/gcc/config/ia64/ia64.h	Thu Feb 13 11:34:05 2020 +0900
@@ -1,5 +1,5 @@
 /* Definitions of target machine GNU compiler.  IA-64 version.
-   Copyright (C) 1999-2018 Free Software Foundation, Inc.
+   Copyright (C) 1999-2020 Free Software Foundation, Inc.
    Contributed by James E. Wilson <wilson@cygnus.com> and
    		  David Mosberger <davidm@hpl.hp.com>.
 
@@ -371,41 +371,6 @@
      1,  1,   1,  1, 1, 1				\
  }
 
-/* Like `FIXED_REGISTERS' but has 1 for each register that is clobbered
-   (in general) by function calls as well as for fixed registers.  This
-   macro therefore identifies the registers that are not available for
-   general allocation of values that must live across function calls.  */
-
-#define CALL_USED_REGISTERS \
-{ /* General registers.  */				\
-  1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  /* Floating-point registers.  */			\
-  1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	\
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  /* Predicate registers.  */				\
-  1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	\
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	\
-  /* Branch registers.  */				\
-  1, 0, 0, 0, 0, 0, 1, 1,				\
-  /*FP CCV UNAT PFS LC EC */				\
-     1,  1,   1,  1, 1, 1				\
-}
-
 /* Like `CALL_USED_REGISTERS' but used to overcome a historical
    problem which makes CALL_USED_REGISTERS *always* include
    all the FIXED_REGISTERS.  Until this problem has been
@@ -597,7 +562,7 @@
 
 #define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \
   ((FR_REGNO_P (REGNO) && (NREGS) == 1) ? RFmode        \
-   : choose_hard_reg_mode ((REGNO), (NREGS), false))
+   : choose_hard_reg_mode ((REGNO), (NREGS), NULL))
 
 /* Handling Leaf Functions */