[14/77] Make libgcc_floating_mode_supported_p take a scalar_float_mode

[Richard Sandiford]

As per subject.

2017-07-13  Richard Sandiford  <richard.sandif...@linaro.org>
            Alan Hayward  <alan.hayw...@arm.com>
            David Sherwood  <david.sherw...@arm.com>

gcc/
        * target.def (libgcc_floating_mode_supported_p): Take a
        scalar_float_mode.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_libgcc_floating_mode_supported_p): Take a
        scalar_float_mode.
        * targhooks.c (default_libgcc_floating_mode_supported_p): Likewise.
        * config/aarch64/aarch64.c (aarch64_libgcc_floating_mode_supported_p):
        Likewise.

Index: gcc/target.def
===================================================================
--- gcc/target.def      2017-07-13 09:18:26.916877727 +0100
+++ gcc/target.def      2017-07-13 09:18:27.468824773 +0100
@@ -3367,7 +3367,7 @@ floating-point mode @var{mode}, which is
 @code{TARGET_SCALAR_MODE_SUPPORTED_P}.  The default version of this \n\
 hook returns true for all of @code{SFmode}, @code{DFmode}, \n\
 @code{XFmode} and @code{TFmode}, if such modes exist.",
- bool, (machine_mode mode),
+ bool, (scalar_float_mode mode),
  default_libgcc_floating_mode_supported_p)
 
 DEFHOOK
Index: gcc/doc/tm.texi
===================================================================
--- gcc/doc/tm.texi     2017-07-13 09:18:26.914877921 +0100
+++ gcc/doc/tm.texi     2017-07-13 09:18:27.467824868 +0100
@@ -4259,7 +4259,7 @@ If this hook allows @code{val} to have a
 @code{int8x8x3_t}s in registers rather than forcing them onto the stack.
 @end deftypefn
 
-@deftypefn {Target Hook} bool TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P 
(machine_mode @var{mode})
+@deftypefn {Target Hook} bool TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P 
(scalar_float_mode @var{mode})
 Define this to return nonzero if libgcc provides support for the 
 floating-point mode @var{mode}, which is known to pass 
 @code{TARGET_SCALAR_MODE_SUPPORTED_P}.  The default version of this 
Index: gcc/targhooks.h
===================================================================
--- gcc/targhooks.h     2017-07-13 09:18:26.917877631 +0100
+++ gcc/targhooks.h     2017-07-13 09:18:27.468824773 +0100
@@ -72,7 +72,7 @@ extern bool default_print_operand_punct_
 extern tree default_mangle_assembler_name (const char *);
 
 extern bool default_scalar_mode_supported_p (machine_mode);
-extern bool default_libgcc_floating_mode_supported_p (machine_mode);
+extern bool default_libgcc_floating_mode_supported_p (scalar_float_mode);
 extern opt_scalar_float_mode default_floatn_mode (int, bool);
 extern bool targhook_words_big_endian (void);
 extern bool targhook_float_words_big_endian (void);
Index: gcc/targhooks.c
===================================================================
--- gcc/targhooks.c     2017-07-13 09:18:26.917877631 +0100
+++ gcc/targhooks.c     2017-07-13 09:18:27.468824773 +0100
@@ -442,7 +442,7 @@ default_scalar_mode_supported_p (machine
    be supported as a scalar mode).  */
 
 bool
-default_libgcc_floating_mode_supported_p (machine_mode mode)
+default_libgcc_floating_mode_supported_p (scalar_float_mode mode)
 {
   switch (mode)
     {
Index: gcc/config/aarch64/aarch64.c
===================================================================
--- gcc/config/aarch64/aarch64.c        2017-07-13 09:18:23.795186280 +0100
+++ gcc/config/aarch64/aarch64.c        2017-07-13 09:18:27.465825060 +0100
@@ -15019,7 +15019,7 @@ aarch64_optab_supported_p (int op, machi
    if MODE is HFmode, and punt to the generic implementation otherwise.  */
 
 static bool
-aarch64_libgcc_floating_mode_supported_p (machine_mode mode)
+aarch64_libgcc_floating_mode_supported_p (scalar_float_mode mode)
 {
   return (mode == HFmode
          ? true