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, 2 insertions, 1 deletions

diff --git a/gcc/dfp.h b/gcc/dfp.h
index 013de8b..a3653c9 100644
--- a/gcc/dfp.h
+++ b/gcc/dfp.h
@@ -34,7 +34,8 @@ void encode_decimal128 (const struct real_format *fmt, long *, const REAL_VALUE_
 int  decimal_do_compare (const REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, int);
 void decimal_real_from_string (REAL_VALUE_TYPE *, const char *);
 void decimal_round_for_format (const struct real_format *, REAL_VALUE_TYPE *);
-void decimal_real_convert (REAL_VALUE_TYPE *, machine_mode, const REAL_VALUE_TYPE *);
+void decimal_real_convert (REAL_VALUE_TYPE *, const real_format *,
+			   const REAL_VALUE_TYPE *);
 void decimal_real_to_decimal (char *, const REAL_VALUE_TYPE *, size_t, size_t, int);
 void decimal_do_fix_trunc (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *);
 void decimal_real_maxval (REAL_VALUE_TYPE *, int, machine_mode);