Allow real_format to be passed to more real.h functions

Most real.h routines used machine modes to specify the format of
an operation and converted that to a float_format * internally.
Some also had alternative versions that accepted a float_format *.

In an upcoming patch it seemed more convenient for the callers
I was adding to use float_format directly, since the callers need
to examine the format themselves for other reasons.  This patch
therefore replaces the machine_mode arguments with a new class that
allows both machine modes and float_format pointers to be used.

Tested on x86_64-linux-gnu, arm-linux-gnueabi and aarch64-linux-gnu.

gcc/
	* real.h (format_helper): New.
	(real_convert, exact_real_truncate, real_from_string3, real_to_target)
	(real_from_target, real_nan, real_2expN, real_value_truncate)
	(significand_size, real_from_string2, exact_real_inverse)
	(exact_real_inverse, real_powi, real_trunc, real_floor, real_ceil)
	(real_round, real_isinteger, real_from_integer): Replace
	machine_mode arguments with format_helper arguments.
	* real.c (exact_real_inverse, real_from_string2, real_from_string3)
	(real_from_integer, real_nan, real_2expN, real_convert)
	(real_value_truncate, exact_real_truncate, real_to_target)
	(real_from_target, significand_size, real_powi, real_trunc)
	(real_floor, real_ceil, real_round, real_isinteger): Replace
	machine_mode arguments with format_helper arguments.
	(real_to_target_fmt, real_from_target_fmt): Delete.
	* dfp.h (decimal_real_convert): Replace mode argument with real_format.
	* dfp.c (decimal_to_binary, decimal_real_convert): Replace mode
	argument with real_format.
	* builtins.c (do_real_to_int_conversion): Update type of fn argument.

gcc/java/
	* jcf-parse.c (get_constant): Use real_from_target rather than
	real_from_target_fmt.

From-SVN: r229581

1 files changed, 4 insertions, 6 deletions

diff --git a/gcc/dfp.c b/gcc/dfp.c
index ca0071c238d..34386eb8586 100644
--- a/gcc/dfp.c
+++ b/gcc/dfp.c
@@ -343,13 +343,13 @@ decode_decimal128 (const struct real_format *fmt ATTRIBUTE_UNUSED,
 
 static void
 decimal_to_binary (REAL_VALUE_TYPE *to, const REAL_VALUE_TYPE *from,
-		   machine_mode mode)
+		   const real_format *fmt)
 {
   char string[256];
   const decimal128 *const d128 = (const decimal128 *) from->sig;
 
   decimal128ToString (d128, string);
-  real_from_string3 (to, string, mode);
+  real_from_string3 (to, string, fmt);
 }
 
 
@@ -459,15 +459,13 @@ decimal_round_for_format (const struct real_format *fmt, REAL_VALUE_TYPE *r)
    binary and decimal types.  */
 
 void
-decimal_real_convert (REAL_VALUE_TYPE *r, machine_mode mode,
+decimal_real_convert (REAL_VALUE_TYPE *r, const real_format *fmt,
 		      const REAL_VALUE_TYPE *a)
 {
-  const struct real_format *fmt = REAL_MODE_FORMAT (mode);
-
   if (a->decimal && fmt->b == 10)
     return;
   if (a->decimal)
-      decimal_to_binary (r, a, mode);
+      decimal_to_binary (r, a, fmt);
   else
       decimal_from_binary (r, a);
 }