Implement C _FloatN, _FloatNx types.

ISO/IEC TS 18661-3:2015 defines C bindings to IEEE interchange and
extended types, in the form of _FloatN and _FloatNx type names with
corresponding fN/FN and fNx/FNx constant suffixes and FLTN_* / FLTNX_*
<float.h> macros.  This patch implements support for this feature in
GCC.

The _FloatN types, for N = 16, 32, 64 or >= 128 and a multiple of 32,
are types encoded according to the corresponding IEEE interchange
format (endianness unspecified; may use either the NaN conventions
recommended in IEEE 754-2008, or the MIPS NaN conventions, since the
choice of convention is only an IEEE recommendation, not a
requirement).  The _FloatNx types, for N = 32, 64 and 128, are IEEE
"extended" types: types extending a narrower format with range and
precision at least as big as those specified in IEEE 754 for each
extended type (and with unspecified representation, but still
following IEEE semantics for their values and operations - and with
the set of values being determined by the precision and the maximum
exponent, which means that while Intel "extended" is suitable for
_Float64x, m68k "extended" is not).  These types are always distinct
from and not compatible with each other and the standard floating
types float, double, long double; thus, double, _Float64 and _Float32x
may all have the same ABI, but they are three still distinct types.
The type names may be used with _Complex to construct corresponding
complex types (unlike __float128, which acts more like a typedef name
than a keyword - thus, this patch may be considered to fix PR
c/32187).  The new suffixes can be combined with GNU "i" and "j"
suffixes for constants of complex types (e.g. 1.0if128, 2.0f64i).

The set of types supported is implementation-defined.  In this GCC
patch, _Float32 is SFmode if that is suitable; _Float32x and _Float64
are DFmode if that is suitable; _Float128 is TFmode if that is
suitable; _Float64x is XFmode if that is suitable, and otherwise
TFmode if that is suitable.  There is a target hook to override the
choices if necessary.  "Suitable" means both conforming to the
requirements of that type, and supported as a scalar type including in
libgcc.  The ABI is whatever the back end does for scalars of that
mode (but note that _Float32 is passed without promotion in variable
arguments, unlike float).  All the existing issues with exceptions and
rounding modes for existing types apply equally to the new type names.

No GCC port supports a floating-point format suitable for _Float128x.
Although there is HFmode support for ARM and AArch64, use of that for
_Float16 is not enabled.  Supporting _Float16 would require additional
work on the excess precision aspects of TS 18661-3: there are new
values of FLT_EVAL_METHOD, which are not currently supported in GCC,
and FLT_EVAL_METHOD == 0 now means that operations and constants on
types narrower than float are evaluated to the range and precision of
float.  Implementing that, so that _Float16 gets evaluated with excess
range and precision, would involve changes to the excess precision
infrastructure so that the _Float16 case is enabled by default, unlike
the x87 case which is only enabled for -fexcess-precision=standard.
Other differences between _Float16 and __fp16 would also need to be
disentangled.

GCC has some prior support for nonstandard floating-point types in the
form of __float80 and __float128.  Where these were previously types
distinct from long double, they are made by this patch into aliases
for _Float64x / _Float128 if those types have the required properties.

In principle the set of possible _FloatN types is infinite.  This
patch hardcodes the four such types for N <= 128, but with as much
code as possible using loops over types to minimize the number of
places with such hardcoding.  I don't think it's likely any further
such types will be of use in future (or indeed that formats suitable
for _Float128x will actually be implemented).  There is a corner case
that all _FloatN, for N >= 128 and a multiple of 32, should be treated
as keywords even when the corresponding type is not supported; I
intend to deal with that in a followup patch.

Tests are added for various functionality of the new types, mostly
using type-generic headers.  The tests use dg-add-options to pass any
extra options needed to enable the types; this is wired up to use the
same options as for __float128 on powerpc to enable _Float128 and
_Float64x, and effective-target keywords for runtime support do the
same hardware test as for __float128 to make sure the VSX instructions
generated by those options are supported.  (Corresponding additions
would be needed for _Float16 on ARM as well if that were enabled with
-mfp16-format=ieee required to use it rather than unconditionally
available.  Of course, -mfp16-format=alternative enables use of a
format which is not compatible with the requirements of the _Float16
type.)

C++ note: no support for the new types or constant suffixes is added
for C++.  C++ decimal floating-point support was very different from
the C support, using class types, and the same may well apply to any
future C++ bindings for IEEE interchange and extended types.  There is
a case, however, for supporting at least *f128 constants in C++, so
that code using __float128 can use the newer style for constants
throughout rather than needing to use the older *q constants in C++.
Also, if built-in functions are added that may provide a way in which
the types could leak into C++ code.

Fortran note: the float128_type_node used in the Fortran front end is
renamed to gfc_float128_type_node, since the semantics are different:
in particular, if long double has binary128 format, then the new
language-independent float128_type_node is a distinct type that also
has binary128 format, but the Fortran node is expected to be NULL in
that case.  Likewise, Fortran's complex_float128_type_node is renamed
to gfc_complex_float128_type_node.

PowerPC note: the back end had an inconsistency that if TFmode was
binary128, *q constants were TFmode instead of KFmode but __float128
was KFmode.  This patch follows the same logic as for *q constants, so
that _Float128 prefers TFmode (and __float128 becomes an alias for
_Float128).

ARM note: __fp16 is promoted to double (by convert_arguments) when
passed without a prototype / in variable arguments.  But this is only
about the argument promotion; it is not handled as promoting in
c-common.c:self_promoting_args_p / c-typeck.c:c_type_promotes_to,
meaning that a K&R function definition for an argument of type __fp16
corresponds to a prototype with an argument of that type, not to one
with an argument of type double, whereas a float argument in a K&R
function definition corresponds to a double prototype argument - and
the same functions are also what's involved in making va_arg give a
warning and generate a call to abort when called with type float.
This is preserved by this patch, while arranging for _Float16 not to
be promoted when passed without a prototype / in variable arguments
(the promotion of float being considered a legacy feature, not applied
to any new types in C99 or later).

TS 18661-3 extends the set of decimal floating-point types similarly,
and adds new constant suffixes for the existing types, but this patch
does not do anything regarding that extension.

This patch does nothing regarding built-in functions, although
type-generic functions such as __builtin_isinf work for the new types
and associated tests are included.  There are at least two levels of
built-in function support possible for these types.  The minimal
level, implemented in
<https://gcc.gnu.org/ml/gcc-patches/2016-06/msg01702.html> (which
needs updating to use dg-add-options), adds built-in functions similar
to those x86 has for __float128: __builtin_inf* __builtin_huge_val*,
__builtin_nan*, __builtin_nans*, __builtin_fabs*, __builtin_copysign*.
That would be sufficient for glibc to use the *f128 names for built-in
functions by default with *q used only for backwards compatibility
when using older GCC versions.  That would also allow c_cpp_builtins's
flag_building_libgcc code, defining __LIBGCC_%s_FUNC_EXT__, to use
such suffixes rather than the present code hardcoding logic about
target-specific constant suffixes and how those relate to function
suffixes.

Full built-in function support would cover the full range of built-in
functions for existing floating-point types, adding variants for all
the new types, except for a few obsolescent functions and
non-type-generic variants of type-generic functions.  Some but not all
references to such functions in GCC use macros such as CASE_FLT_FN to
be type-generic; a fair amount of work would be needed to identify all
places to update.  Adding all those functions would enable
optimizations (for constant arguments and otherwise) for TS 18661-3
functions, but it would also substantially expand the enum listing
built-in functions (and we've had problems with the size of that enum
in the past), and increase the amount of built-in function
initialization to do - I don't know what the startup cost involved in
built-in function initialization is, but it would be something to
consider when adding such a large set of functions.

There are also a range of optimizations, in match.pd and elsewhere,
that only operate on the three standard floating-point types.  Ideally
those would be made generic to all floating-point types, but this
patch does nothing in that regard.  Special care would be needed
regarding making sure library functions to which calls are generated
actually exist.  For example, if sqrt is called on an argument of type
_Float32, and the result converted to _Float32, this is equivalent to
doing a square root operation directly on _Float32.  But if the user's
libm does not have the sqrtf32 function, or the name is not reserved
because __STDC_WANT_IEC_60559_TYPES_EXT__ was not defined before
including <math.h>, you can only do that optimization if you convert
to a call to sqrtf instead.

DECIMAL_DIG now relates to all supported floating-point formats, not
just float, double and long double; I've raised the question with WG14
of how this relates to the formula for DECIMAL_DIG in C11 not
considering this.  TS 18661-3 says it also covers non-arithmetic
formats only supported by library conversion functions; this patch
does not add any target hooks to allow for the case where there are
such formats wider than any supported for arithmetic types (where
e.g. libc supports conversions involving the binary128 representation,
but the _Float128 type is not supported).

GCC provides its own <tgmath.h> for some targets.  No attempt is made
to adapt this to handle the new types.

Nothing is done regarding debug info for the new types (see the
"Debugger support for __float128 type?" thread on gcc@, Sep/Oct 2015).

No __SIZEOF_*__ macros are added for the new types.

Nothing is done with do_warn_double_promotion.

Nothing is done to include the new types in those determining
max_align_t, although properly it should be sufficiently aligned for
any of those types.

The logic for usual arithmetic conversions in c_common_type relies on
TYPE_PRECISION for floating-point types, which is less than ideal
(doesn't necessarily correspond to whether one type's values are
subset of another); looking in more detail at the formats might be
better.  But since I included code in build_common_tree_nodes to work
around rs6000 KFmode having precision 113 not 128, I think it should
work.  Ideally one might have errors in generic code for the case
where the two types do not have one type's values a subset of the
other (which is undefined behavior).  But the only case where this can
actually occur is mixing IBM long double with binary128 on powerpc,
and rs6000_invalid_binary_op deals with that at present.  TS 18661-3
does not fully specify the type resulting from the usual arithmetic
conversions in the case where two _FloatNx types have the same set of
values; I arranged the code to prefer the greater value of N in that
case.

The __FP_FAST_FMA* macros are not extended to cover the new types,
since there are no corresponding built-in functions (if built-in
fmafN, fmafNx are added, the macros should be extended, and the new
macros documented).  Also, only a limited set of modes is handled in
mode_has_fma.

Diagnostics relating to the use of the new types with -pedantic do not
try to distinguish them from purely nonstandard types such as __int128
and constant suffixes such as *q.

If you use an unsupported _FloatN / _FloatNx type you get a warning
about the type defaulting to int after the warning about the type not
being supported.  That's less than ideal, but it's also a pre-existing
condition if you use __int128 on a 32-bit system where it's
unsupported.

Bootstrapped with no regressions on x86_64-pc-linux-gnu.  Other
back-end changes minimally tested by building cc1 for ia64-linux-gnu,
powerpc64le-linux-gnu, pdp11-none (the last failed for unrelated
reasons).

	PR c/32187
gcc:
	* tree-core.h (TI_COMPLEX_FLOAT16_TYPE)
	(TI_COMPLEX_FLOATN_NX_TYPE_FIRST, TI_COMPLEX_FLOAT32_TYPE)
	(TI_COMPLEX_FLOAT64_TYPE, TI_COMPLEX_FLOAT128_TYPE)
	(TI_COMPLEX_FLOAT32X_TYPE, TI_COMPLEX_FLOAT64X_TYPE)
	(TI_COMPLEX_FLOAT128X_TYPE, TI_FLOAT16_TYPE, TI_FLOATN_TYPE_FIRST)
	(TI_FLOATN_NX_TYPE_FIRST, TI_FLOAT32_TYPE, TI_FLOAT64_TYPE)
	(TI_FLOAT128_TYPE, TI_FLOATN_TYPE_LAST, TI_FLOAT32X_TYPE)
	(TI_FLOATNX_TYPE_FIRST, TI_FLOAT64X_TYPE, TI_FLOAT128X_TYPE)
	(TI_FLOATNX_TYPE_LAST, TI_FLOATN_NX_TYPE_LAST): New enum
	tree_index values.
	(NUM_FLOATN_TYPES, NUM_FLOATNX_TYPES, NUM_FLOATN_NX_TYPES): New
	macros.
	(struct floatn_type_info): New structure type.
	(floatn_nx_types): New variable declaration.
	* tree.h (FLOATN_TYPE_NODE, FLOATN_NX_TYPE_NODE)
	(FLOATNX_TYPE_NODE, float128_type_node, float64x_type_node)
	(COMPLEX_FLOATN_NX_TYPE_NODE): New macros.
	* tree.c (floatn_nx_types): New variable.
	(build_common_tree_nodes): Initialize _FloatN, _FloatNx and
	corresponding complex types.
	* target.def (floatn_mode): New hook.
	* targhooks.c: Include "real.h".
	(default_floatn_mode): New function.
	* targhooks.h (default_floatn_mode): New prototype.
	* doc/extend.texi (Floating Types): Document _FloatN and _FloatNx
	types.
	* doc/sourcebuild.texi (float@var{n}, float@var{n}x): Document new
	effective-target and dg-add-options keywords.
	(float@var{n}_runtime, float@var{n}x_runtime, floatn_nx_runtime):
	Document new effective-target keywords.
	* doc/tm.texi.in (TARGET_FLOATN_MODE): New @hook.
	* doc/tm.texi: Regenerate.
	* ginclude/float.h (LDBL_DECIMAL_DIG): Define to
	__LDBL_DECIMAL_DIG__, not __DECIMAL_DIG__.
	[__STDC_WANT_IEC_60559_TYPES_EXT__]: Define macros from TS
	18661-3.
	* real.h (struct real_format): Add field ieee_bits.
	* real.c (ieee_single_format, mips_single_format)
	(motorola_single_format, spu_single_format, ieee_double_format)
	(mips_double_format, motorola_double_format)
	(ieee_extended_motorola_format, ieee_extended_intel_96_format)
	(ieee_extended_intel_128_format)
	(ieee_extended_intel_96_round_53_format, ibm_extended_format)
	(mips_extended_format, ieee_quad_format, mips_quad_format)
	(vax_f_format, vax_d_format, vax_g_format, decimal_single_format)
	(decimal_double_format, decimal_quad_format, ieee_half_format)
	(arm_half_format, real_internal_format: Initialize ieee_bits
	field.
	* config/i386/i386.c (ix86_init_builtin_types): Do not initialize
	float128_type_node.  Set float80_type_node to float64x_type_node
	if appropriate and long_double_type_node not appropriate.
	* config/ia64/ia64.c (ia64_init_builtins): Likewise.
	* config/pdp11/pdp11.c (pdp11_f_format, pdp11_d_format):
	Initialize ieee_bits field.
	* config/rs6000/rs6000.c (TARGET_FLOATN_MODE): New macro.
	(rs6000_init_builtins): Set ieee128_float_type_node to
	float128_type_node.
	(rs6000_floatn_mode): New function.

gcc/c:
	* c-tree.h (cts_floatn_nx): New enum c_typespec_keyword value.
	(struct c_declspecs): Add field floatn_nx_idx.
	* c-decl.c (declspecs_add_type, finish_declspecs): Handle _FloatN
	and _FloatNx type specifiers.
	* c-parser.c (c_keyword_starts_typename, c_token_starts_declspecs)
	(c_parser_declspecs, c_parser_attribute_any_word)
	(c_parser_objc_selector): Use CASE_RID_FLOATN_NX.
	* c-typeck.c (c_common_type): Handle _FloatN and _FloatNx types.
	(convert_arguments): Avoid promoting _FloatN and _FloatNx types
	narrower than double.

gcc/c-family:
	* c-common.h (RID_FLOAT16, RID_FLOATN_NX_FIRST, RID_FLOAT32)
	(RID_FLOAT64, RID_FLOAT128, RID_FLOAT32X, RID_FLOAT64X)
	(RID_FLOAT128X): New enum rid values.
	(CASE_RID_FLOATN_NX): New macro.
	* c-common.c (c_common_reswords): Add _FloatN and _FloatNx
	keywords.
	(c_common_type_for_mode): Check for _FloatN and _FloatNx and
	corresponding complex types.
	(c_common_nodes_and_builtins): For non-C++, register _FloatN and
	_FloatNx and corresponding complex types.
	(keyword_begins_type_specifier): Use CASE_RID_FLOATN_NX.
	* c-cppbuiltin.c (builtin_define_float_constants): Check _FloatN
	and _FloatNx types for the widest type for determining
	DECIMAL_DIG.  Define __LDBL_DECIMAL_DIG__ as well as
	__DECIMAL_DIG__ for long double.  Handle FMA_SUFFIX being NULL.
	(c_cpp_builtins): Call builtin_define_float_constants for _FloatN
	and _FloatNx types.
	* c-lex.c (interpret_float): Handle _FloatN and _FloatNx
	constants.
	* c-pretty-print.c (pp_c_floating_constant): Handle _FloatN and
	_FloatNx types.

gcc/fortran:
	* trans-types.h (float128_type_node): Rename to
	gfc_float128_type_node.
	(complex_float128_type_node): Rename to
	gfc_complex_float128_type_node.
	* iso-c-binding.def, trans-intrinsic.c, trans-types.c: All users
	changed.

gcc/testsuite:
	* lib/target-supports.exp (check_effective_target_float16)
	(check_effective_target_float32, check_effective_target_float64)
	(check_effective_target_float128, check_effective_target_float32x)
	(check_effective_target_float64x)
	(check_effective_target_float128x)
	(check_effective_target_float16_runtime)
	(check_effective_target_float32_runtime)
	(check_effective_target_float64_runtime)
	(check_effective_target_float128_runtime)
	(check_effective_target_float32x_runtime)
	(check_effective_target_float64x_runtime)
	(check_effective_target_float128x_runtime)
	(check_effective_target_floatn_nx_runtime)
	(add_options_for_float16, add_options_for_float32)
	(add_options_for_float64, add_options_for_float128)
	(add_options_for_float32x, add_options_for_float64x)
	(add_options_for_float128x): New procedures.
	* gcc.dg/dfp/floatn.c, gcc.dg/float128-typeof.c,
	gcc.dg/float128x-typeof.c, gcc.dg/float16-typeof.c,
	gcc.dg/float32-typeof.c, gcc.dg/float32x-typeof.c,
	gcc.dg/float64-typeof.c, gcc.dg/float64x-typeof.c,
	gcc.dg/floatn-arithconv.c, gcc.dg/floatn-errs.c,
	gcc.dg/floatn-typeof.h, gcc.dg/torture/float128-basic.c,
	gcc.dg/torture/float128-complex.c,
	gcc.dg/torture/float128-floath.c, gcc.dg/torture/float128-tg.c,
	gcc.dg/torture/float128x-basic.c,
	gcc.dg/torture/float128x-complex.c,
	gcc.dg/torture/float128x-floath.c, gcc.dg/torture/float128x-tg.c,
	gcc.dg/torture/float16-basic.c, gcc.dg/torture/float16-complex.c,
	gcc.dg/torture/float16-floath.c, gcc.dg/torture/float16-tg.c,
	gcc.dg/torture/float32-basic.c, gcc.dg/torture/float32-complex.c,
	gcc.dg/torture/float32-floath.c, gcc.dg/torture/float32-tg.c,
	gcc.dg/torture/float32x-basic.c,
	gcc.dg/torture/float32x-complex.c,
	gcc.dg/torture/float32x-floath.c, gcc.dg/torture/float32x-tg.c,
	gcc.dg/torture/float64-basic.c, gcc.dg/torture/float64-complex.c,
	gcc.dg/torture/float64-floath.c, gcc.dg/torture/float64-tg.c,
	gcc.dg/torture/float64x-basic.c,
	gcc.dg/torture/float64x-complex.c,
	gcc.dg/torture/float64x-floath.c, gcc.dg/torture/float64x-tg.c,
	gcc.dg/torture/floatn-basic.h, gcc.dg/torture/floatn-complex.h,
	gcc.dg/torture/floatn-convert.c, gcc.dg/torture/floatn-floath.h,
	gcc.dg/torture/floatn-tg.h,
	gcc.dg/torture/fp-int-convert-float128-ieee-timode.c,
	gcc.dg/torture/fp-int-convert-float128-ieee.c,
	gcc.dg/torture/fp-int-convert-float128x-timode.c,
	gcc.dg/torture/fp-int-convert-float128x.c,
	gcc.dg/torture/fp-int-convert-float16-timode.c,
	gcc.dg/torture/fp-int-convert-float16.c,
	gcc.dg/torture/fp-int-convert-float32-timode.c,
	gcc.dg/torture/fp-int-convert-float32.c,
	gcc.dg/torture/fp-int-convert-float32x-timode.c,
	gcc.dg/torture/fp-int-convert-float32x.c,
	gcc.dg/torture/fp-int-convert-float64-timode.c,
	gcc.dg/torture/fp-int-convert-float64.c,
	gcc.dg/torture/fp-int-convert-float64x-timode.c,
	gcc.dg/torture/fp-int-convert-float64x.c: New tests.
	* gcc.dg/torture/fp-int-convert.h (TEST_I_F): Add argument for
	maximum exponent of floating-point type.  Use it in testing
	whether 0x8...0 fits in the floating-point type.  Always treat -1
	(signed 0xf...f) as fitting in the floating-point type.
	(M_OK1): New macro.
	* gcc.dg/torture/fp-int-convert-double.c,
	gcc.dg/torture/fp-int-convert-float.c,
	gcc.dg/torture/fp-int-convert-float128-timode.c,
	gcc.dg/torture/fp-int-convert-float128.c,
	gcc.dg/torture/fp-int-convert-float80-timode.c,
	gcc.dg/torture/fp-int-convert-float80.c,
	gcc.dg/torture/fp-int-convert-long-double.c,
	gcc.dg/torture/fp-int-convert-timode.c: Update calls to TEST_I_F.

libcpp:
	* include/cpplib.h (CPP_N_FLOATN, CPP_N_FLOATNX)
	(CPP_N_WIDTH_FLOATN_NX, CPP_FLOATN_SHIFT, CPP_FLOATN_MAX): New
	macros.
	* expr.c (interpret_float_suffix): Handle fN, fNx, FN and FNx
	suffixes.

From-SVN: r239625

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 04ad7c1c316fb190f6d1d2ed4dfd2e8e7a184b72..3e03050ede4f7e029ca744c3ab796a4fc4aea0ba 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,65 @@
+2016-08-19  Joseph Myers  <joseph@codesourcery.com>
+
+       PR c/32187
+       * tree-core.h (TI_COMPLEX_FLOAT16_TYPE)
+       (TI_COMPLEX_FLOATN_NX_TYPE_FIRST, TI_COMPLEX_FLOAT32_TYPE)
+       (TI_COMPLEX_FLOAT64_TYPE, TI_COMPLEX_FLOAT128_TYPE)
+       (TI_COMPLEX_FLOAT32X_TYPE, TI_COMPLEX_FLOAT64X_TYPE)
+       (TI_COMPLEX_FLOAT128X_TYPE, TI_FLOAT16_TYPE, TI_FLOATN_TYPE_FIRST)
+       (TI_FLOATN_NX_TYPE_FIRST, TI_FLOAT32_TYPE, TI_FLOAT64_TYPE)
+       (TI_FLOAT128_TYPE, TI_FLOATN_TYPE_LAST, TI_FLOAT32X_TYPE)
+       (TI_FLOATNX_TYPE_FIRST, TI_FLOAT64X_TYPE, TI_FLOAT128X_TYPE)
+       (TI_FLOATNX_TYPE_LAST, TI_FLOATN_NX_TYPE_LAST): New enum
+       tree_index values.
+       (NUM_FLOATN_TYPES, NUM_FLOATNX_TYPES, NUM_FLOATN_NX_TYPES): New
+       macros.
+       (struct floatn_type_info): New structure type.
+       (floatn_nx_types): New variable declaration.
+       * tree.h (FLOATN_TYPE_NODE, FLOATN_NX_TYPE_NODE)
+       (FLOATNX_TYPE_NODE, float128_type_node, float64x_type_node)
+       (COMPLEX_FLOATN_NX_TYPE_NODE): New macros.
+       * tree.c (floatn_nx_types): New variable.
+       (build_common_tree_nodes): Initialize _FloatN, _FloatNx and
+       corresponding complex types.
+       * target.def (floatn_mode): New hook.
+       * targhooks.c: Include "real.h".
+       (default_floatn_mode): New function.
+       * targhooks.h (default_floatn_mode): New prototype.
+       * doc/extend.texi (Floating Types): Document _FloatN and _FloatNx
+       types.
+       * doc/sourcebuild.texi (float@var{n}, float@var{n}x): Document new
+       effective-target and dg-add-options keywords.
+       (float@var{n}_runtime, float@var{n}x_runtime, floatn_nx_runtime):
+       Document new effective-target keywords.
+       * doc/tm.texi.in (TARGET_FLOATN_MODE): New @hook.
+       * doc/tm.texi: Regenerate.
+       * ginclude/float.h (LDBL_DECIMAL_DIG): Define to
+       __LDBL_DECIMAL_DIG__, not __DECIMAL_DIG__.
+       [__STDC_WANT_IEC_60559_TYPES_EXT__]: Define macros from TS
+       18661-3.
+       * real.h (struct real_format): Add field ieee_bits.
+       * real.c (ieee_single_format, mips_single_format)
+       (motorola_single_format, spu_single_format, ieee_double_format)
+       (mips_double_format, motorola_double_format)
+       (ieee_extended_motorola_format, ieee_extended_intel_96_format)
+       (ieee_extended_intel_128_format)
+       (ieee_extended_intel_96_round_53_format, ibm_extended_format)
+       (mips_extended_format, ieee_quad_format, mips_quad_format)
+       (vax_f_format, vax_d_format, vax_g_format, decimal_single_format)
+       (decimal_double_format, decimal_quad_format, ieee_half_format)
+       (arm_half_format, real_internal_format: Initialize ieee_bits
+       field.
+       * config/i386/i386.c (ix86_init_builtin_types): Do not initialize
+       float128_type_node.  Set float80_type_node to float64x_type_node
+       if appropriate and long_double_type_node not appropriate.
+       * config/ia64/ia64.c (ia64_init_builtins): Likewise.
+       * config/pdp11/pdp11.c (pdp11_f_format, pdp11_d_format):
+       Initialize ieee_bits field.
+       * config/rs6000/rs6000.c (TARGET_FLOATN_MODE): New macro.
+       (rs6000_init_builtins): Set ieee128_float_type_node to
+       float128_type_node.
+       (rs6000_floatn_mode): New function.
+
 2016-08-19  Jakub Jelinek  <jakub@redhat.com>
 
        * config/i386/rdseedintrin.h (_rdseed16_step, _rdseed32_step,

diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index 616ca132de32fa6e9e4eac5ac9519ceda085251a..bec37cffd7597ce787dd1ec7c3cf7fcef250c1bc 100644 (file)
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,28 @@
+2016-08-19  Joseph Myers  <joseph@codesourcery.com>
+
+       PR c/32187
+       * c-common.h (RID_FLOAT16, RID_FLOATN_NX_FIRST, RID_FLOAT32)
+       (RID_FLOAT64, RID_FLOAT128, RID_FLOAT32X, RID_FLOAT64X)
+       (RID_FLOAT128X): New enum rid values.
+       (CASE_RID_FLOATN_NX): New macro.
+       * c-common.c (c_common_reswords): Add _FloatN and _FloatNx
+       keywords.
+       (c_common_type_for_mode): Check for _FloatN and _FloatNx and
+       corresponding complex types.
+       (c_common_nodes_and_builtins): For non-C++, register _FloatN and
+       _FloatNx and corresponding complex types.
+       (keyword_begins_type_specifier): Use CASE_RID_FLOATN_NX.
+       * c-cppbuiltin.c (builtin_define_float_constants): Check _FloatN
+       and _FloatNx types for the widest type for determining
+       DECIMAL_DIG.  Define __LDBL_DECIMAL_DIG__ as well as
+       __DECIMAL_DIG__ for long double.  Handle FMA_SUFFIX being NULL.
+       (c_cpp_builtins): Call builtin_define_float_constants for _FloatN
+       and _FloatNx types.
+       * c-lex.c (interpret_float): Handle _FloatN and _FloatNx
+       constants.
+       * c-pretty-print.c (pp_c_floating_constant): Handle _FloatN and
+       _FloatNx types.
+
 2016-08-18  David Malcolm  <dmalcolm@redhat.com>
 
        * c-opts.c (c_diagnostic_finalizer): Update for change to

diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c
index 9082883cb6852dc0db54ad1ab59aa9d0b8b04abd..32468ca1351ba31592c729f9fae0347c3410b5ae 100644 (file)
--- a/gcc/c-family/c-common.c
+++ b/gcc/c-family/c-common.c
@@ -434,6 +434,13 @@ const struct c_common_resword c_common_reswords[] =
   { "_Cilk_sync",       RID_CILK_SYNC,  0 },
   { "_Cilk_for",        RID_CILK_FOR,   0 },
   { "_Imaginary",      RID_IMAGINARY, D_CONLY },
+  { "_Float16",         RID_FLOAT16,   D_CONLY },
+  { "_Float32",         RID_FLOAT32,   D_CONLY },
+  { "_Float64",         RID_FLOAT64,   D_CONLY },
+  { "_Float128",        RID_FLOAT128,  D_CONLY },
+  { "_Float32x",        RID_FLOAT32X,  D_CONLY },
+  { "_Float64x",        RID_FLOAT64X,  D_CONLY },
+  { "_Float128x",       RID_FLOAT128X, D_CONLY },
   { "_Decimal32",       RID_DFLOAT32,  D_CONLY | D_EXT },
   { "_Decimal64",       RID_DFLOAT64,  D_CONLY | D_EXT },
   { "_Decimal128",      RID_DFLOAT128, D_CONLY | D_EXT },
@@ -3478,6 +3485,11 @@ c_common_type_for_mode (machine_mode mode, int unsignedp)
   if (mode == TYPE_MODE (long_double_type_node))
     return long_double_type_node;
 
+  for (i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+    if (FLOATN_NX_TYPE_NODE (i) != NULL_TREE
+       && mode == TYPE_MODE (FLOATN_NX_TYPE_NODE (i)))
+      return FLOATN_NX_TYPE_NODE (i);
+
   if (mode == TYPE_MODE (void_type_node))
     return void_type_node;
 
@@ -3503,6 +3515,11 @@ c_common_type_for_mode (machine_mode mode, int unsignedp)
       if (mode == TYPE_MODE (complex_long_double_type_node))
        return complex_long_double_type_node;
 
+      for (i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+       if (COMPLEX_FLOATN_NX_TYPE_NODE (i) != NULL_TREE
+           && mode == TYPE_MODE (COMPLEX_FLOATN_NX_TYPE_NODE (i)))
+         return COMPLEX_FLOATN_NX_TYPE_NODE (i);
+
       if (mode == TYPE_MODE (complex_integer_type_node) && !unsignedp)
        return complex_integer_type_node;
 
@@ -5406,6 +5423,12 @@ c_common_nodes_and_builtins (void)
   record_builtin_type (RID_DOUBLE, NULL, double_type_node);
   record_builtin_type (RID_MAX, "long double", long_double_type_node);
 
+  if (!c_dialect_cxx ())
+    for (i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+      if (FLOATN_NX_TYPE_NODE (i) != NULL_TREE)
+       record_builtin_type ((enum rid) (RID_FLOATN_NX_FIRST + i), NULL,
+                            FLOATN_NX_TYPE_NODE (i));
+
   /* Only supported decimal floating point extension if the target
      actually supports underlying modes. */
   if (targetm.scalar_mode_supported_p (SDmode)
@@ -5495,6 +5518,20 @@ c_common_nodes_and_builtins (void)
                 TYPE_DECL, get_identifier ("complex long double"),
                 complex_long_double_type_node));
 
+  if (!c_dialect_cxx ())
+    for (i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+      if (COMPLEX_FLOATN_NX_TYPE_NODE (i) != NULL_TREE)
+       {
+         char buf[30];
+         sprintf (buf, "complex _Float%d%s", floatn_nx_types[i].n,
+                  floatn_nx_types[i].extended ? "x" : "");
+         lang_hooks.decls.pushdecl
+           (build_decl (UNKNOWN_LOCATION,
+                        TYPE_DECL,
+                        get_identifier (buf),
+                        COMPLEX_FLOATN_NX_TYPE_NODE (i)));
+       }
+
   if (c_dialect_cxx ())
     /* For C++, make fileptr_type_node a distinct void * type until
        FILE type is defined.  */
@@ -12523,6 +12560,7 @@ keyword_begins_type_specifier (enum rid keyword)
     case RID_LONG:
     case RID_SHORT:
     case RID_SIGNED:
+    CASE_RID_FLOATN_NX:
     case RID_DFLOAT32:
     case RID_DFLOAT64:
     case RID_DFLOAT128:

diff --git a/gcc/c-family/c-common.h b/gcc/c-family/c-common.h
index 31320bf7c877a028f30c8934c8c71808e7a9cb7d..bc22baa26b8bb26559d7d9131c3d66c281a9432f 100644 (file)
--- a/gcc/c-family/c-common.h
+++ b/gcc/c-family/c-common.h
@@ -102,6 +102,20 @@ enum rid
   RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL,      RID_CHOOSE_EXPR,
   RID_TYPES_COMPATIBLE_P,      RID_BUILTIN_COMPLEX,         RID_BUILTIN_SHUFFLE,
   RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128,
+
+  /* TS 18661-3 keywords, in the same sequence as the TI_* values.  */
+  RID_FLOAT16,
+  RID_FLOATN_NX_FIRST = RID_FLOAT16,
+  RID_FLOAT32,
+  RID_FLOAT64,
+  RID_FLOAT128,
+  RID_FLOAT32X,
+  RID_FLOAT64X,
+  RID_FLOAT128X,
+#define CASE_RID_FLOATN_NX                                             \
+  case RID_FLOAT16: case RID_FLOAT32: case RID_FLOAT64: case RID_FLOAT128: \
+  case RID_FLOAT32X: case RID_FLOAT64X: case RID_FLOAT128X
+
   RID_FRACT, RID_ACCUM, RID_AUTO_TYPE, RID_BUILTIN_CALL_WITH_STATIC_CHAIN,
 
   /* C11 */

diff --git a/gcc/c-family/c-cppbuiltin.c b/gcc/c-family/c-cppbuiltin.c
index 82ed19d1f8d43c4a4774f4b884207511b9fbca49..1f7d013239f291fea65229e6b0c6d8e8f5e5b3c7 100644 (file)
--- a/gcc/c-family/c-cppbuiltin.c
+++ b/gcc/c-family/c-cppbuiltin.c
@@ -125,7 +125,7 @@ builtin_define_float_constants (const char *name_prefix,
   const double log10_2 = .30102999566398119521;
   double log10_b;
   const struct real_format *fmt;
-  const struct real_format *ldfmt;
+  const struct real_format *widefmt;
 
   char name[64], buf[128];
   int dig, min_10_exp, max_10_exp;
@@ -134,8 +134,20 @@ builtin_define_float_constants (const char *name_prefix,
 
   fmt = REAL_MODE_FORMAT (TYPE_MODE (type));
   gcc_assert (fmt->b != 10);
-  ldfmt = REAL_MODE_FORMAT (TYPE_MODE (long_double_type_node));
-  gcc_assert (ldfmt->b != 10);
+  widefmt = REAL_MODE_FORMAT (TYPE_MODE (long_double_type_node));
+  gcc_assert (widefmt->b != 10);
+  for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+    {
+      tree wtype = FLOATN_NX_TYPE_NODE (i);
+      if (wtype != NULL_TREE)
+       {
+         const struct real_format *wfmt
+           = REAL_MODE_FORMAT (TYPE_MODE (wtype));
+         gcc_assert (wfmt->b != 10);
+         if (wfmt->p > widefmt->p)
+           widefmt = wfmt;
+       }
+    }
 
   /* The radix of the exponent representation.  */
   if (type == float_type_node)
@@ -219,7 +231,7 @@ builtin_define_float_constants (const char *name_prefix,
      floating type, but we want this value for rendering constants below.  */
   {
     double d_decimal_dig
-      = 1 + (fmt->p < ldfmt->p ? ldfmt->p : fmt->p) * log10_b;
+      = 1 + (fmt->p < widefmt->p ? widefmt->p : fmt->p) * log10_b;
     decimal_dig = d_decimal_dig;
     if (decimal_dig < d_decimal_dig)
       decimal_dig++;
@@ -231,13 +243,13 @@ builtin_define_float_constants (const char *name_prefix,
     if (type_decimal_dig < type_d_decimal_dig)
       type_decimal_dig++;
   }
+  /* Arbitrarily, define __DECIMAL_DIG__ when defining macros for long
+     double, although it may be greater than the value for long
+     double.  */
   if (type == long_double_type_node)
     builtin_define_with_int_value ("__DECIMAL_DIG__", decimal_dig);
-  else
-    {
-      sprintf (name, "__%s_DECIMAL_DIG__", name_prefix);
-      builtin_define_with_int_value (name, type_decimal_dig);
-    }
+  sprintf (name, "__%s_DECIMAL_DIG__", name_prefix);
+  builtin_define_with_int_value (name, type_decimal_dig);
 
   /* Since, for the supported formats, B is always a power of 2, we
      construct the following numbers directly as a hexadecimal
@@ -289,7 +301,7 @@ builtin_define_float_constants (const char *name_prefix,
   builtin_define_with_int_value (name, MODE_HAS_NANS (TYPE_MODE (type)));
 
   /* Note whether we have fast FMA.  */
-  if (mode_has_fma (TYPE_MODE (type)))
+  if (mode_has_fma (TYPE_MODE (type)) && fma_suffix != NULL)
     {
       sprintf (name, "__FP_FAST_FMA%s", fma_suffix);
       builtin_define_with_int_value (name, 1);
@@ -984,6 +996,19 @@ c_cpp_builtins (cpp_reader *pfile)
   builtin_define_float_constants ("LDBL", "L", "%s", "L",
                                  long_double_type_node);
 
+  for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+    {
+      if (FLOATN_NX_TYPE_NODE (i) == NULL_TREE)
+       continue;
+      char prefix[20], csuffix[20];
+      sprintf (prefix, "FLT%d%s", floatn_nx_types[i].n,
+              floatn_nx_types[i].extended ? "X" : "");
+      sprintf (csuffix, "F%d%s", floatn_nx_types[i].n,
+              floatn_nx_types[i].extended ? "x" : "");
+      builtin_define_float_constants (prefix, csuffix, "%s", NULL,
+                                     FLOATN_NX_TYPE_NODE (i));
+    }
+
   /* For decfloat.h.  */
   builtin_define_decimal_float_constants ("DEC32", "DF", dfloat32_type_node);
   builtin_define_decimal_float_constants ("DEC64", "DD", dfloat64_type_node);

diff --git a/gcc/c-family/c-lex.c b/gcc/c-family/c-lex.c
index c904ee67fc0b8eae333b4d0d513baf217f3777d2..829c18b26a4c4935c8b947dfb32bdc7664f66414 100644 (file)
--- a/gcc/c-family/c-lex.c
+++ b/gcc/c-family/c-lex.c
@@ -840,6 +840,26 @@ interpret_float (const cpp_token *token, unsigned int flags,
        type = c_common_type_for_mode (mode, 0);
        gcc_assert (type);
       }
+    else if ((flags & (CPP_N_FLOATN | CPP_N_FLOATNX)) != 0)
+      {
+       unsigned int n = (flags & CPP_N_WIDTH_FLOATN_NX) >> CPP_FLOATN_SHIFT;
+       bool extended = (flags & CPP_N_FLOATNX) != 0;
+       type = NULL_TREE;
+       for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+         if (floatn_nx_types[i].n == (int) n
+             && floatn_nx_types[i].extended == extended)
+           {
+             type = FLOATN_NX_TYPE_NODE (i);
+             break;
+           }
+       if (type == NULL_TREE)
+         {
+           error ("unsupported non-standard suffix on floating constant");
+           return error_mark_node;
+         }
+       else
+         pedwarn (input_location, OPT_Wpedantic, "non-standard suffix on floating constant");
+      }
     else if ((flags & CPP_N_WIDTH) == CPP_N_LARGE)
       type = long_double_type_node;
     else if ((flags & CPP_N_WIDTH) == CPP_N_SMALL
@@ -868,6 +888,17 @@ interpret_float (const cpp_token *token, unsigned int flags,
       if (flags & CPP_N_IMAGINARY)
        /* I or J suffix.  */
        copylen--;
+      if (flags & CPP_N_FLOATNX)
+       copylen--;
+      if (flags & (CPP_N_FLOATN | CPP_N_FLOATNX))
+       {
+         unsigned int n = (flags & CPP_N_WIDTH_FLOATN_NX) >> CPP_FLOATN_SHIFT;
+         while (n > 0)
+           {
+             copylen--;
+             n /= 10;
+           }
+       }
     }
 
   copy = (char *) alloca (copylen + 1);

diff --git a/gcc/c-family/c-pretty-print.c b/gcc/c-family/c-pretty-print.c
index 374bd1a3484021a5f06100a6e146f93c045f6ed6..90428cac183814dd5fedf06479ce18cafa5d6fa9 100644 (file)
--- a/gcc/c-family/c-pretty-print.c
+++ b/gcc/c-family/c-pretty-print.c
@@ -1045,6 +1045,16 @@ pp_c_floating_constant (c_pretty_printer *pp, tree r)
     pp_string (pp, "dd");
   else if (TREE_TYPE (r) == dfloat32_type_node)
     pp_string (pp, "df");
+  else if (TREE_TYPE (r) != double_type_node)
+    for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+      if (TREE_TYPE (r) == FLOATN_NX_TYPE_NODE (i))
+       {
+         pp_character (pp, 'f');
+         pp_decimal_int (pp, floatn_nx_types[i].n);
+         if (floatn_nx_types[i].extended)
+           pp_character (pp, 'x');
+         break;
+       }
 }
 
 /* Print out a FIXED value as a decimal-floating-constant.  */

diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 522da71ff6423aa7bb793b0a78c2910166a4ec2b..8d9d4aabb0a6af00b88e84ec81a2fd2cc6f78b7e 100644 (file)
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,17 @@
+2016-08-19  Joseph Myers  <joseph@codesourcery.com>
+
+       PR c/32187
+       * c-tree.h (cts_floatn_nx): New enum c_typespec_keyword value.
+       (struct c_declspecs): Add field floatn_nx_idx.
+       * c-decl.c (declspecs_add_type, finish_declspecs): Handle _FloatN
+       and _FloatNx type specifiers.
+       * c-parser.c (c_keyword_starts_typename, c_token_starts_declspecs)
+       (c_parser_declspecs, c_parser_attribute_any_word)
+       (c_parser_objc_selector): Use CASE_RID_FLOATN_NX.
+       * c-typeck.c (c_common_type): Handle _FloatN and _FloatNx types.
+       (convert_arguments): Avoid promoting _FloatN and _FloatNx types
+       narrower than double.
+
 2016-08-12  Jakub Jelinek  <jakub@redhat.com>
            Martin Liska  <mliska@suse.cz>
 

diff --git a/gcc/c/c-decl.c b/gcc/c/c-decl.c
index 9ad473cdbcbd97067b7e6002a4969caeeb16f5f7..0fb2d206458cb221eb7cacdcfeb1dfcf93a3e90d 100644 (file)
--- a/gcc/c/c-decl.c
+++ b/gcc/c/c-decl.c
@@ -9804,6 +9804,14 @@ declspecs_add_type (location_t loc, struct c_declspecs *specs,
                error_at (loc,
                          ("both %<long%> and %<float%> in "
                           "declaration specifiers"));
+             else if (specs->typespec_word == cts_floatn_nx)
+               error_at (loc,
+                         ("both %<long%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
              else if (specs->typespec_word == cts_dfloat32)
                error_at (loc,
                          ("both %<long%> and %<_Decimal32%> in "
@@ -9857,6 +9865,14 @@ declspecs_add_type (location_t loc, struct c_declspecs *specs,
                error_at (loc,
                          ("both %<short%> and %<double%> in "
                           "declaration specifiers"));
+             else if (specs->typespec_word == cts_floatn_nx)
+               error_at (loc,
+                         ("both %<short%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
              else if (specs->typespec_word == cts_dfloat32)
                 error_at (loc,
                          ("both %<short%> and %<_Decimal32%> in "
@@ -9901,6 +9917,14 @@ declspecs_add_type (location_t loc, struct c_declspecs *specs,
                error_at (loc,
                          ("both %<signed%> and %<double%> in "
                           "declaration specifiers"));
+             else if (specs->typespec_word == cts_floatn_nx)
+               error_at (loc,
+                         ("both %<signed%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
              else if (specs->typespec_word == cts_dfloat32)
                error_at (loc,
                          ("both %<signed%> and %<_Decimal32%> in "
@@ -9945,6 +9969,14 @@ declspecs_add_type (location_t loc, struct c_declspecs *specs,
                error_at (loc,
                          ("both %<unsigned%> and %<double%> in "
                           "declaration specifiers"));
+             else if (specs->typespec_word == cts_floatn_nx)
+               error_at (loc,
+                         ("both %<unsigned%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
               else if (specs->typespec_word == cts_dfloat32)
                error_at (loc,
                          ("both %<unsigned%> and %<_Decimal32%> in "
@@ -10049,6 +10081,14 @@ declspecs_add_type (location_t loc, struct c_declspecs *specs,
                error_at (loc,
                          ("both %<_Sat%> and %<double%> in "
                           "declaration specifiers"));
+             else if (specs->typespec_word == cts_floatn_nx)
+               error_at (loc,
+                         ("both %<_Sat%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
               else if (specs->typespec_word == cts_dfloat32)
                error_at (loc,
                          ("both %<_Sat%> and %<_Decimal32%> in "
@@ -10082,8 +10122,9 @@ declspecs_add_type (location_t loc, struct c_declspecs *specs,
        }
       else
        {
-         /* "void", "_Bool", "char", "int", "float", "double", "_Decimal32",
-            "__intN", "_Decimal64", "_Decimal128", "_Fract", "_Accum" or
+         /* "void", "_Bool", "char", "int", "float", "double",
+            "_FloatN", "_FloatNx", "_Decimal32", "__intN",
+            "_Decimal64", "_Decimal128", "_Fract", "_Accum" or
             "__auto_type".  */
          if (specs->typespec_word != cts_none)
            {
@@ -10308,6 +10349,69 @@ declspecs_add_type (location_t loc, struct c_declspecs *specs,
                  specs->locations[cdw_typespec] = loc;
                }
              return specs;
+           CASE_RID_FLOATN_NX:
+             specs->floatn_nx_idx = i - RID_FLOATN_NX_FIRST;
+             if (!in_system_header_at (input_location))
+               pedwarn (loc, OPT_Wpedantic,
+                        "ISO C does not support the %<_Float%d%s%> type",
+                        floatn_nx_types[specs->floatn_nx_idx].n,
+                        (floatn_nx_types[specs->floatn_nx_idx].extended
+                         ? "x"
+                         : ""));
+
+             if (specs->long_p)
+               error_at (loc,
+                         ("both %<long%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
+             else if (specs->short_p)
+               error_at (loc,
+                         ("both %<short%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
+             else if (specs->signed_p)
+               error_at (loc,
+                         ("both %<signed%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
+             else if (specs->unsigned_p)
+               error_at (loc,
+                         ("both %<unsigned%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
+             else if (specs->saturating_p)
+               error_at (loc,
+                         ("both %<_Sat%> and %<_Float%d%s%> in "
+                          "declaration specifiers"),
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
+             else if (FLOATN_NX_TYPE_NODE (specs->floatn_nx_idx) == NULL_TREE)
+               error_at (loc,
+                         "%<_Float%d%s%> is not supported on this target",
+                         floatn_nx_types[specs->floatn_nx_idx].n,
+                         (floatn_nx_types[specs->floatn_nx_idx].extended
+                          ? "x"
+                          : ""));
+             else
+               {
+                 specs->typespec_word = cts_floatn_nx;
+                 specs->locations[cdw_typespec] = loc;
+               }
+             return specs;
            case RID_DFLOAT32:
            case RID_DFLOAT64:
            case RID_DFLOAT128:
@@ -10785,6 +10889,13 @@ finish_declspecs (struct c_declspecs *specs)
                         : double_type_node);
        }
       break;
+    case cts_floatn_nx:
+      gcc_assert (!specs->long_p && !specs->short_p
+                 && !specs->signed_p && !specs->unsigned_p);
+      specs->type = (specs->complex_p
+                    ? COMPLEX_FLOATN_NX_TYPE_NODE (specs->floatn_nx_idx)
+                    : FLOATN_NX_TYPE_NODE (specs->floatn_nx_idx));
+      break;
     case cts_dfloat32:
     case cts_dfloat64:
     case cts_dfloat128:

diff --git a/gcc/c/c-parser.c b/gcc/c/c-parser.c
index c050f644566f32f8f121c0f1b9020f458e6b291c..fe0c95f3b1bdedd6e69eedcc8b7a3ed84e145408 100644 (file)
--- a/gcc/c/c-parser.c
+++ b/gcc/c/c-parser.c
@@ -540,6 +540,7 @@ c_keyword_starts_typename (enum rid keyword)
     case RID_DFLOAT32:
     case RID_DFLOAT64:
     case RID_DFLOAT128:
+    CASE_RID_FLOATN_NX:
     case RID_BOOL:
     case RID_ENUM:
     case RID_STRUCT:
@@ -727,6 +728,7 @@ c_token_starts_declspecs (c_token *token)
        case RID_DFLOAT32:
        case RID_DFLOAT64:
        case RID_DFLOAT128:
+       CASE_RID_FLOATN_NX:
        case RID_BOOL:
        case RID_ENUM:
        case RID_STRUCT:
@@ -2536,6 +2538,7 @@ c_parser_declspecs (c_parser *parser, struct c_declspecs *specs,
        case RID_DFLOAT32:
        case RID_DFLOAT64:
        case RID_DFLOAT128:
+       CASE_RID_FLOATN_NX:
        case RID_BOOL:
        case RID_FRACT:
        case RID_ACCUM:
@@ -4009,6 +4012,7 @@ c_parser_attribute_any_word (c_parser *parser)
        case RID_DFLOAT32:
        case RID_DFLOAT64:
        case RID_DFLOAT128:
+       CASE_RID_FLOATN_NX:
        case RID_BOOL:
        case RID_FRACT:
        case RID_ACCUM:
@@ -9638,6 +9642,7 @@ c_parser_objc_selector (c_parser *parser)
     case RID_CHAR:
     case RID_FLOAT:
     case RID_DOUBLE:
+    CASE_RID_FLOATN_NX:
     case RID_VOID:
     case RID_BOOL:
     case RID_ATOMIC:

diff --git a/gcc/c/c-tree.h b/gcc/c/c-tree.h
index 46be53ece2166bca7fdfaf4d756fea7e797bda1f..5a8ab6df48381d14a8d53f092b8fe657a6aac9de 100644 (file)
--- a/gcc/c/c-tree.h
+++ b/gcc/c/c-tree.h
@@ -230,6 +230,7 @@ enum c_typespec_keyword {
   cts_dfloat32,
   cts_dfloat64,
   cts_dfloat128,
+  cts_floatn_nx,
   cts_fract,
   cts_accum,
   cts_auto_type
@@ -295,6 +296,9 @@ struct c_declspecs {
   int align_log;
   /* For the __intN declspec, this stores the index into the int_n_* arrays.  */
   int int_n_idx;
+  /* For the _FloatN and _FloatNx declspec, this stores the index into
+     the floatn_nx_types array.  */
+  int floatn_nx_idx;
   /* The storage class specifier, or csc_none if none.  */
   enum c_storage_class storage_class;
   /* Any type specifier keyword used such as "int", not reflecting

diff --git a/gcc/c/c-typeck.c b/gcc/c/c-typeck.c
index 2e1e09dab00c99be368b2e6f2679afb1ed6aaef1..bc8728a49b661b9f62e0f7f9340b83134d6a0ddb 100644 (file)
--- a/gcc/c/c-typeck.c
+++ b/gcc/c/c-typeck.c
@@ -927,18 +927,41 @@ c_common_type (tree t1, tree t2)
        return long_integer_type_node;
     }
 
+  /* For floating types of the same TYPE_PRECISION (which we here
+     assume means either the same set of values, or sets of values
+     neither a subset of the other, with behavior being undefined in
+     the latter case), follow the rules from TS 18661-3: prefer
+     interchange types _FloatN, then standard types long double,
+     double, float, then extended types _FloatNx.  For extended types,
+     check them starting with _Float128x as that seems most consistent
+     in spirit with preferring long double to double; for interchange
+     types, also check in that order for consistency although it's not
+     possible for more than one of them to have the same
+     precision.  */
+  tree mv1 = TYPE_MAIN_VARIANT (t1);
+  tree mv2 = TYPE_MAIN_VARIANT (t2);
+
+  for (int i = NUM_FLOATN_TYPES - 1; i >= 0; i--)
+    if (mv1 == FLOATN_TYPE_NODE (i) || mv2 == FLOATN_TYPE_NODE (i))
+      return FLOATN_TYPE_NODE (i);
+
   /* Likewise, prefer long double to double even if same size.  */
-  if (TYPE_MAIN_VARIANT (t1) == long_double_type_node
-      || TYPE_MAIN_VARIANT (t2) == long_double_type_node)
+  if (mv1 == long_double_type_node || mv2 == long_double_type_node)
     return long_double_type_node;
 
   /* Likewise, prefer double to float even if same size.
      We got a couple of embedded targets with 32 bit doubles, and the
      pdp11 might have 64 bit floats.  */
-  if (TYPE_MAIN_VARIANT (t1) == double_type_node
-      || TYPE_MAIN_VARIANT (t2) == double_type_node)
+  if (mv1 == double_type_node || mv2 == double_type_node)
     return double_type_node;
 
+  if (mv1 == float_type_node || mv2 == float_type_node)
+    return float_type_node;
+
+  for (int i = NUM_FLOATNX_TYPES - 1; i >= 0; i--)
+    if (mv1 == FLOATNX_TYPE_NODE (i) || mv2 == FLOATNX_TYPE_NODE (i))
+      return FLOATNX_TYPE_NODE (i);
+
   /* Otherwise prefer the unsigned one.  */
 
   if (TYPE_UNSIGNED (t1))
@@ -3284,6 +3307,30 @@ convert_arguments (location_t loc, vec<location_t> arg_loc, tree typelist,
 
       val = require_complete_type (ploc, val);
 
+      /* Some floating-point arguments must be promoted to double when
+        no type is specified by a prototype.  This applies to
+        arguments of type float, and to architecture-specific types
+        (ARM __fp16), but not to _FloatN or _FloatNx types.  */
+      bool promote_float_arg = false;
+      if (type == NULL_TREE
+         && TREE_CODE (valtype) == REAL_TYPE
+         && (TYPE_PRECISION (valtype)
+             <= TYPE_PRECISION (double_type_node))
+         && TYPE_MAIN_VARIANT (valtype) != double_type_node
+         && TYPE_MAIN_VARIANT (valtype) != long_double_type_node
+         && !DECIMAL_FLOAT_MODE_P (TYPE_MODE (valtype)))
+       {
+         /* Promote this argument, unless it has a _FloatN or
+            _FloatNx type.  */
+         promote_float_arg = true;
+         for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+           if (TYPE_MAIN_VARIANT (valtype) == FLOATN_NX_TYPE_NODE (i))
+             {
+               promote_float_arg = false;
+               break;
+             }
+       }
+
       if (type != 0)
        {
          /* Formal parm type is specified by a function prototype.  */
@@ -3450,12 +3497,7 @@ convert_arguments (location_t loc, vec<location_t> arg_loc, tree typelist,
                parmval = default_conversion (parmval);
            }
        }
-      else if (TREE_CODE (valtype) == REAL_TYPE
-              && (TYPE_PRECISION (valtype)
-                  <= TYPE_PRECISION (double_type_node))
-              && TYPE_MAIN_VARIANT (valtype) != double_type_node
-              && TYPE_MAIN_VARIANT (valtype) != long_double_type_node
-              && !DECIMAL_FLOAT_MODE_P (TYPE_MODE (valtype)))
+      else if (promote_float_arg)
         {
          if (type_generic)
            parmval = val;

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index be027f5e2dd2ea750aff3d10e24b363e018704a9..39794230c10cf8b66d4c4bd5549b2c5d5280062c 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -33325,24 +33325,29 @@ ix86_init_builtins_va_builtins_abi (void)
 static void
 ix86_init_builtin_types (void)
 {
-  tree float128_type_node, float80_type_node, const_string_type_node;
+  tree float80_type_node, const_string_type_node;
 
   /* The __float80 type.  */
   float80_type_node = long_double_type_node;
   if (TYPE_MODE (float80_type_node) != XFmode)
     {
-      /* The __float80 type.  */
-      float80_type_node = make_node (REAL_TYPE);
+      if (float64x_type_node != NULL_TREE
+         && TYPE_MODE (float64x_type_node) == XFmode)
+       float80_type_node = float64x_type_node;
+      else
+       {
+         /* The __float80 type.  */
+         float80_type_node = make_node (REAL_TYPE);
 
-      TYPE_PRECISION (float80_type_node) = 80;
-      layout_type (float80_type_node);
+         TYPE_PRECISION (float80_type_node) = 80;
+         layout_type (float80_type_node);
+       }
     }
   lang_hooks.types.register_builtin_type (float80_type_node, "__float80");
 
-  /* The __float128 type.  */
-  float128_type_node = make_node (REAL_TYPE);
-  TYPE_PRECISION (float128_type_node) = 128;
-  layout_type (float128_type_node);
+  /* The __float128 type.  The node has already been created as
+     _Float128, so we only need to register the __float128 name for
+     it.  */
   lang_hooks.types.register_builtin_type (float128_type_node, "__float128");
 
   const_string_type_node

diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c
index 4fd7c84a18da94fca901db38b16fb9493b2a9010..ebd2c86b8d8f917248453070105b1fb5178bc7a3 100644 (file)
--- a/gcc/config/ia64/ia64.c
+++ b/gcc/config/ia64/ia64.c
@@ -10350,9 +10350,15 @@ ia64_init_builtins (void)
   (*lang_hooks.types.register_builtin_type) (fpreg_type, "__fpreg");
 
   /* The __float80 type.  */
-  float80_type = make_node (REAL_TYPE);
-  TYPE_PRECISION (float80_type) = 80;
-  layout_type (float80_type);
+  if (float64x_type_node != NULL_TREE
+      && TYPE_MODE (float64x_type_node) == XFmode)
+    float80_type = float64x_type_node;
+  else
+    {
+      float80_type = make_node (REAL_TYPE);
+      TYPE_PRECISION (float80_type) = 80;
+      layout_type (float80_type);
+    }
   (*lang_hooks.types.register_builtin_type) (float80_type, "__float80");
 
   /* The __float128 type.  */
@@ -10362,14 +10368,12 @@ ia64_init_builtins (void)
       tree const_string_type
        = build_pointer_type (build_qualified_type
                              (char_type_node, TYPE_QUAL_CONST));
-      tree float128_type = make_node (REAL_TYPE);
 
-      TYPE_PRECISION (float128_type) = 128;
-      layout_type (float128_type);
-      (*lang_hooks.types.register_builtin_type) (float128_type, "__float128");
+      (*lang_hooks.types.register_builtin_type) (float128_type_node,
+                                                "__float128");
 
       /* TFmode support builtins.  */
-      ftype = build_function_type_list (float128_type, NULL_TREE);
+      ftype = build_function_type_list (float128_type_node, NULL_TREE);
       decl = add_builtin_function ("__builtin_infq", ftype,
                                   IA64_BUILTIN_INFQ, BUILT_IN_MD,
                                   NULL, NULL_TREE);
@@ -10380,7 +10384,7 @@ ia64_init_builtins (void)
                                   NULL, NULL_TREE);
       ia64_builtins[IA64_BUILTIN_HUGE_VALQ] = decl;
 
-      ftype = build_function_type_list (float128_type,
+      ftype = build_function_type_list (float128_type_node,
                                        const_string_type,
                                        NULL_TREE);
       decl = add_builtin_function ("__builtin_nanq", ftype,
@@ -10395,8 +10399,8 @@ ia64_init_builtins (void)
       TREE_READONLY (decl) = 1;
       ia64_builtins[IA64_BUILTIN_NANSQ] = decl;
 
-      ftype = build_function_type_list (float128_type,
-                                       float128_type,
+      ftype = build_function_type_list (float128_type_node,
+                                       float128_type_node,
                                        NULL_TREE);
       decl = add_builtin_function ("__builtin_fabsq", ftype,
                                   IA64_BUILTIN_FABSQ, BUILT_IN_MD,
@@ -10404,9 +10408,9 @@ ia64_init_builtins (void)
       TREE_READONLY (decl) = 1;
       ia64_builtins[IA64_BUILTIN_FABSQ] = decl;
 
-      ftype = build_function_type_list (float128_type,
-                                       float128_type,
-                                       float128_type,
+      ftype = build_function_type_list (float128_type_node,
+                                       float128_type_node,
+                                       float128_type_node,
                                        NULL_TREE);
       decl = add_builtin_function ("__builtin_copysignq", ftype,
                                   IA64_BUILTIN_COPYSIGNQ, BUILT_IN_MD,

diff --git a/gcc/config/pdp11/pdp11.c b/gcc/config/pdp11/pdp11.c
index ec3d61a03ed4ca7deac2e835d56a04728008e6ab..35d57c724889f6582e752f1a7634273f1e8cf3cf 100644 (file)
--- a/gcc/config/pdp11/pdp11.c
+++ b/gcc/config/pdp11/pdp11.c
@@ -69,6 +69,7 @@ const struct real_format pdp11_f_format =
     127,
     15,
     15,
+    0,
     false,
     false,
     false,
@@ -91,6 +92,7 @@ const struct real_format pdp11_d_format =
     127,
     15,
     15,
+    0,
     false,
     false,
     false,

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index e58ede1e9f278392c6110b7a20823ad36e5f8c57..b232099b9e7d536b266e77fc5d8d7fc970869086 100644 (file)
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -1703,6 +1703,9 @@ static const struct attribute_spec rs6000_attribute_table[] =
 #undef TARGET_VECTOR_MODE_SUPPORTED_P
 #define TARGET_VECTOR_MODE_SUPPORTED_P rs6000_vector_mode_supported_p
 
+#undef TARGET_FLOATN_MODE
+#define TARGET_FLOATN_MODE rs6000_floatn_mode
+
 #undef TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN
 #define TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN invalid_arg_for_unprototyped_fn
 
@@ -16303,10 +16306,7 @@ rs6000_init_builtins (void)
       layout_type (ibm128_float_type_node);
       SET_TYPE_MODE (ibm128_float_type_node, IFmode);
 
-      ieee128_float_type_node = make_node (REAL_TYPE);
-      TYPE_PRECISION (ieee128_float_type_node) = 128;
-      layout_type (ieee128_float_type_node);
-      SET_TYPE_MODE (ieee128_float_type_node, KFmode);
+      ieee128_float_type_node = float128_type_node;
 
       lang_hooks.types.register_builtin_type (ieee128_float_type_node,
                                              "__float128");
@@ -36199,6 +36199,54 @@ rs6000_vector_mode_supported_p (machine_mode mode)
     return false;
 }
 
+/* Target hook for floatn_mode.  */
+static machine_mode
+rs6000_floatn_mode (int n, bool extended)
+{
+  if (extended)
+    {
+      switch (n)
+       {
+       case 32:
+         return DFmode;
+
+       case 64:
+         if (TARGET_FLOAT128)
+           return (FLOAT128_IEEE_P (TFmode)) ? TFmode : KFmode;
+         else
+           return VOIDmode;
+
+       case 128:
+         return VOIDmode;
+
+       default:
+         /* Those are the only valid _FloatNx types.  */
+         gcc_unreachable ();
+       }
+    }
+  else
+    {
+      switch (n)
+       {
+       case 32:
+         return SFmode;
+
+       case 64:
+         return DFmode;
+
+       case 128:
+         if (TARGET_FLOAT128)
+           return (FLOAT128_IEEE_P (TFmode)) ? TFmode : KFmode;
+         else
+           return VOIDmode;
+
+       default:
+         return VOIDmode;
+       }
+    }
+
+}
+
 /* Target hook for c_mode_for_suffix.  */
 static machine_mode
 rs6000_c_mode_for_suffix (char suffix)

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 5285e002d7e28ae2da38c29731f01f709e9d94fa..5124883ae5c9f543f9bf90cf5e01b1f0b571be36 100644 (file)
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -927,6 +927,8 @@ examine and set these two fictitious variables with your debugger.
 @node Floating Types
 @section Additional Floating Types
 @cindex additional floating types
+@cindex @code{_Float@var{n}} data types
+@cindex @code{_Float@var{n}x} data types
 @cindex @code{__float80} data type
 @cindex @code{__float128} data type
 @cindex @code{__ibm128} data type
@@ -935,9 +937,19 @@ examine and set these two fictitious variables with your debugger.
 @cindex @code{W} floating point suffix
 @cindex @code{Q} floating point suffix
 
-As an extension, GNU C supports additional floating
+ISO/IEC TS 18661-3:2015 defines C support for additional floating
+types @code{_Float@var{n}} and @code{_Float@var{n}x}, and GCC supports
+these type names; the set of types supported depends on the target
+architecture.  These types are not supported when compiling C++.
+Constants with these types use suffixes @code{f@var{n}} or
+@code{F@var{n}} and @code{f@var{n}x} or @code{F@var{n}x}.  These type
+names can be used together with @code{_Complex} to declare complex
+types.
+
+As an extension, GNU C and GNU C++ support additional floating
 types, @code{__float80} and @code{__float128} to support 80-bit
-(@code{XFmode}) and 128-bit (@code{TFmode}) floating types.
+(@code{XFmode}) and 128-bit (@code{TFmode}) floating types; these are
+aliases for the type names @code{_Float64x} and @code{_Float128}.
 Support for additional types includes the arithmetic operators:
 add, subtract, multiply, divide; unary arithmetic operators;
 relational operators; equality operators; and conversions to and from
@@ -954,9 +966,11 @@ typedef _Complex float __attribute__((mode(TC))) _Complex128;
 typedef _Complex float __attribute__((mode(XC))) _Complex80;
 @end smallexample
 
-In order to use @code{__float128} and @code{__ibm128} on PowerPC Linux
+In order to use @code{_Float128}, @code{__float128} and
+@code{__ibm128} on PowerPC Linux
 systems, you must use the @option{-mfloat128}. It is expected in
-future versions of GCC that @code{__float128} will be enabled
+future versions of GCC that @code{_Float128} and @code{__float128}
+will be enabled
 automatically.  In addition, there are currently problems in using the
 complex @code{__float128} type.  When these problems are fixed, you
 would use the following syntax to declare @code{_Complex128} to be a
@@ -976,7 +990,14 @@ Not all targets support additional floating-point types.
 IA-64 targets.  The @code{__float128} type is supported on hppa HP-UX.
 The @code{__float128} type is supported on PowerPC 64-bit Linux
 systems by default if the vector scalar instruction set (VSX) is
-enabled.
+enabled.  The @code{_Float128} type is supported on all systems where
+@code{__float128} is supported or where @code{long double} has the
+IEEE binary128 format.  The @code{_Float64x} type is supported on all
+systems where @code{__float128} is supported.  The @code{_Float32}
+type is supported on all systems supporting IEEE binary32; the
+@code{_Float64} and @code{Float32x} types are supported on all systems
+supporting IEEE binary64.  GCC does not currently support
+@code{_Float16} or @code{_Float128x} on any systems.
 
 On the PowerPC, @code{__ibm128} provides access to the IBM extended
 double format, and it is intended to be used by the library functions

diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index fa41fc04f95113f410f7df9d81f51457b71bcf0a..d18c3b4c27b8f0bdf5d3fec12aec48087cfc4330 100644 (file)
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -1321,6 +1321,25 @@ Target supports array and structure sizes that are 32 bits or longer.
 
 @item 4byte_wchar_t
 Target has @code{wchar_t} that is at least 4 bytes.
+
+@item float@var{n}
+Target has the @code{_Float@var{n}} type.
+
+@item float@var{n}x
+Target has the @code{_Float@var{n}x} type.
+
+@item float@var{n}_runtime
+Target has the @code{_Float@var{n}} type, including runtime support
+for any options added with @code{dg-add-options}.
+
+@item float@var{n}x_runtime
+Target has the @code{_Float@var{n}x} type, including runtime support
+for any options added with @code{dg-add-options}.
+
+@item floatn_nx_runtime
+Target has runtime support for any options added with
+@code{dg-add-options} for any @code{_Float@var{n}} or
+@code{_Float@var{n}x} type.
 @end table
 
 @subsubsection Fortran-specific attributes
@@ -2135,6 +2154,12 @@ locally when using pic/PIC passes in the testsuite.
 @item c99_runtime
 Add the target-specific flags needed to access the C99 runtime.
 
+@item float@var{n}
+Add the target-specific flags needed to use the @code{_Float@var{n}} type.
+
+@item float@var{n}x
+Add the target-specific flags needed to use the @code{_Float@var{n}x} type.
+
 @item ieee
 Add the target-specific flags needed to enable full IEEE
 compliance mode.

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 9edb006cb067a0f68af7579d1ac7409fad12c105..586626062435f3718cfae84c6aab3024d08d79d7 100644 (file)
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -4269,6 +4269,24 @@ hook returns true for all of @code{SFmode}, @code{DFmode},
 @code{XFmode} and @code{TFmode}, if such modes exist.
 @end deftypefn
 
+@deftypefn {Target Hook} machine_mode TARGET_FLOATN_MODE (int @var{n}, bool @var{extended})
+Define this to return the machine mode to use for the type 
+@code{_Float@var{n}}, if @var{extended} is false, or the type 
+@code{_Float@var{n}x}, if @var{extended} is true.  If such a type 
+is not supported, return @code{VOIDmode}.  The default version of this 
+hook returns @code{SFmode} for @code{_Float32}, @code{DFmode} for 
+@code{_Float64} and @code{_Float32x} and @code{TFmode} for 
+@code{_Float128}, if those modes exist and satisfy the requirements for 
+those types and pass @code{TARGET_SCALAR_MODE_SUPPORTED_P} and 
+@code{TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P}; for @code{_Float64x}, it 
+returns the first of @code{XFmode} and @code{TFmode} that exists and 
+satisfies the same requirements; for other types, it returns 
+@code{VOIDmode}.  The hook is only called for values of @var{n} and 
+@var{extended} that are valid according to ISO/IEC TS 18661-3:2015; that 
+is, @var{n} is one of 32, 64, 128, or, if @var{extended} is false, 16 or 
+greater than 128 and a multiple of 32.
+@end deftypefn
+
 @deftypefn {Target Hook} bool TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P (machine_mode @var{mode})
 Define this to return nonzero for machine modes for which the port has
 small register classes.  If this target hook returns nonzero for a given

diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index a72c3d8ab10e6abdf49d1250db5e51a3e2a67391..da133a4b7010533d85d5bb9a850b91e8a80ce1ca 100644 (file)
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -3527,6 +3527,8 @@ stack.
 
 @hook TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P
 
+@hook TARGET_FLOATN_MODE
+
 @hook TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P
 
 @node Scalar Return

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 23386cce487ab3fa9b89b6aa7171b6413421397a..a404c432d64087f9af0ba36b2e57fa1fd5dcf102 100644 (file)
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,13 @@
+2016-08-19  Joseph Myers  <joseph@codesourcery.com>
+
+       PR c/32187
+       * trans-types.h (float128_type_node): Rename to
+       gfc_float128_type_node.
+       (complex_float128_type_node): Rename to
+       gfc_complex_float128_type_node.
+       * iso-c-binding.def, trans-intrinsic.c, trans-types.c: All users
+       changed.
+
 2016-08-19  Jakub Jelinek  <jakub@redhat.com>
 
        PR fortran/71014

diff --git a/gcc/fortran/iso-c-binding.def b/gcc/fortran/iso-c-binding.def
index c3f87e9da83b18d6d66ccfdbdeca20259fddc769..472e7ae4fafe233113dc082fd819e2d200d4a49e 100644 (file)
--- a/gcc/fortran/iso-c-binding.def
+++ b/gcc/fortran/iso-c-binding.def
@@ -115,8 +115,8 @@ NAMED_REALCST (ISOCBINDING_DOUBLE, "c_double", \
 NAMED_REALCST (ISOCBINDING_LONG_DOUBLE, "c_long_double", \
                get_real_kind_from_node (long_double_type_node), GFC_STD_F2003)
 NAMED_REALCST (ISOCBINDING_FLOAT128, "c_float128", \
-              float128_type_node == NULL_TREE \
-                 ? -4 : get_real_kind_from_node (float128_type_node), \
+              gfc_float128_type_node == NULL_TREE \
+                 ? -4 : get_real_kind_from_node (gfc_float128_type_node), \
               GFC_STD_GNU)
 NAMED_CMPXCST (ISOCBINDING_FLOAT_COMPLEX, "c_float_complex", \
                get_real_kind_from_node (float_type_node), GFC_STD_F2003)
@@ -125,8 +125,8 @@ NAMED_CMPXCST (ISOCBINDING_DOUBLE_COMPLEX, "c_double_complex", \
 NAMED_CMPXCST (ISOCBINDING_LONG_DOUBLE_COMPLEX, "c_long_double_complex", \
                get_real_kind_from_node (long_double_type_node), GFC_STD_F2003)
 NAMED_CMPXCST (ISOCBINDING_FLOAT128_COMPLEX, "c_float128_complex", \
-              float128_type_node == NULL_TREE \
-                 ? -4 : get_real_kind_from_node (float128_type_node), \
+              gfc_float128_type_node == NULL_TREE \
+                 ? -4 : get_real_kind_from_node (gfc_float128_type_node), \
               GFC_STD_GNU)
 
 NAMED_LOGCST (ISOCBINDING_BOOL, "c_bool", \

diff --git a/gcc/fortran/trans-intrinsic.c b/gcc/fortran/trans-intrinsic.c
index 17dd8c266a2279ca0a6a79078d572fa59cf493ee..81678428f182492a18d62645d2bc418c8ab44d7d 100644 (file)
--- a/gcc/fortran/trans-intrinsic.c
+++ b/gcc/fortran/trans-intrinsic.c
@@ -149,7 +149,7 @@ builtin_decl_for_precision (enum built_in_function base_built_in,
     i = m->double_built_in;
   else if (precision == TYPE_PRECISION (long_double_type_node))
     i = m->long_double_built_in;
-  else if (precision == TYPE_PRECISION (float128_type_node))
+  else if (precision == TYPE_PRECISION (gfc_float128_type_node))
     {
       /* Special treatment, because it is not exactly a built-in, but
         a library function.  */
@@ -621,8 +621,8 @@ gfc_build_intrinsic_lib_fndecls (void)
 
     memset (quad_decls, 0, sizeof(tree) * (END_BUILTINS + 1));
 
-    type = float128_type_node;
-    complex_type = complex_float128_type_node;
+    type = gfc_float128_type_node;
+    complex_type = gfc_complex_float128_type_node;
     /* type (*) (type) */
     func_1 = build_function_type_list (type, type, NULL_TREE);
     /* int (*) (type) */

diff --git a/gcc/fortran/trans-types.c b/gcc/fortran/trans-types.c
index bde64f499c7e6c4ba182b7b9da7c7b5d7f9cb945..6a89b30e3bf1121016059b8ab9e228424c98adc3 100644 (file)
--- a/gcc/fortran/trans-types.c
+++ b/gcc/fortran/trans-types.c
@@ -62,8 +62,8 @@ tree pfunc_type_node;
 
 tree gfc_charlen_type_node;
 
-tree float128_type_node = NULL_TREE;
-tree complex_float128_type_node = NULL_TREE;
+tree gfc_float128_type_node = NULL_TREE;
+tree gfc_complex_float128_type_node = NULL_TREE;
 
 bool gfc_real16_is_float128 = false;
 
@@ -901,7 +901,7 @@ gfc_init_types (void)
       PUSH_TYPE (name_buf, type);
 
       if (gfc_real_kinds[index].c_float128)
-       float128_type_node = type;
+       gfc_float128_type_node = type;
 
       type = gfc_build_complex_type (type);
       gfc_complex_types[index] = type;
@@ -910,7 +910,7 @@ gfc_init_types (void)
       PUSH_TYPE (name_buf, type);
 
       if (gfc_real_kinds[index].c_float128)
-       complex_float128_type_node = type;
+       gfc_complex_float128_type_node = type;
     }
 
   for (index = 0; gfc_character_kinds[index].kind != 0; ++index)

diff --git a/gcc/fortran/trans-types.h b/gcc/fortran/trans-types.h
index 95d98e9359c2613fb5f6bc78112d84d003bf08cf..c518cc1892650b46d7bb3153e1971ed1b8c53207 100644 (file)
--- a/gcc/fortran/trans-types.h
+++ b/gcc/fortran/trans-types.h
@@ -30,8 +30,8 @@ extern GTY(()) tree ppvoid_type_node;
 extern GTY(()) tree pvoid_type_node;
 extern GTY(()) tree prvoid_type_node;
 extern GTY(()) tree pchar_type_node;
-extern GTY(()) tree float128_type_node;
-extern GTY(()) tree complex_float128_type_node;
+extern GTY(()) tree gfc_float128_type_node;
+extern GTY(()) tree gfc_complex_float128_type_node;
 
 /* This is the type used to hold the lengths of character variables.
    It must be the same as the corresponding definition in gfortran.h.  */

diff --git a/gcc/ginclude/float.h b/gcc/ginclude/float.h
index 862f7cc40b48362d59d22011dc8ca97f84b39c9b..de46a2711a96e7c31f5fcb16441cc1e6da2d86f4 100644 (file)
--- a/gcc/ginclude/float.h
+++ b/gcc/ginclude/float.h
@@ -165,7 +165,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #undef LDBL_DECIMAL_DIG
 #define FLT_DECIMAL_DIG                __FLT_DECIMAL_DIG__
 #define DBL_DECIMAL_DIG                __DBL_DECIMAL_DIG__
-#define LDBL_DECIMAL_DIG       __DECIMAL_DIG__
+#define LDBL_DECIMAL_DIG       __LDBL_DECIMAL_DIG__
 
 /* Whether types support subnormal numbers.  */
 #undef FLT_HAS_SUBNORM
@@ -185,6 +185,187 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 
 #endif /* C11 */
 
+#ifdef __STDC_WANT_IEC_60559_TYPES_EXT__
+/* Constants for _FloatN and _FloatNx types from TS 18661-3.  See
+   comments above for their semantics.  */
+
+#ifdef __FLT16_MANT_DIG__
+#undef FLT16_MANT_DIG
+#define FLT16_MANT_DIG         __FLT16_MANT_DIG__
+#undef FLT16_DIG
+#define FLT16_DIG              __FLT16_DIG__
+#undef FLT16_MIN_EXP
+#define FLT16_MIN_EXP          __FLT16_MIN_EXP__
+#undef FLT16_MIN_10_EXP
+#define FLT16_MIN_10_EXP       __FLT16_MIN_10_EXP__
+#undef FLT16_MAX_EXP
+#define FLT16_MAX_EXP          __FLT16_MAX_EXP__
+#undef FLT16_MAX_10_EXP
+#define FLT16_MAX_10_EXP       __FLT16_MAX_10_EXP__
+#undef FLT16_MAX
+#define FLT16_MAX              __FLT16_MAX__
+#undef FLT16_EPSILON
+#define FLT16_EPSILON          __FLT16_EPSILON__
+#undef FLT16_MIN
+#define FLT16_MIN              __FLT16_MIN__
+#undef FLT16_DECIMAL_DIG
+#define FLT16_DECIMAL_DIG      __FLT16_DECIMAL_DIG__
+#undef FLT16_TRUE_MIN
+#define FLT16_TRUE_MIN         __FLT16_DENORM_MIN__
+#endif /* __FLT16_MANT_DIG__.  */
+
+#ifdef __FLT32_MANT_DIG__
+#undef FLT32_MANT_DIG
+#define FLT32_MANT_DIG         __FLT32_MANT_DIG__
+#undef FLT32_DIG
+#define FLT32_DIG              __FLT32_DIG__
+#undef FLT32_MIN_EXP
+#define FLT32_MIN_EXP          __FLT32_MIN_EXP__
+#undef FLT32_MIN_10_EXP
+#define FLT32_MIN_10_EXP       __FLT32_MIN_10_EXP__
+#undef FLT32_MAX_EXP
+#define FLT32_MAX_EXP          __FLT32_MAX_EXP__
+#undef FLT32_MAX_10_EXP
+#define FLT32_MAX_10_EXP       __FLT32_MAX_10_EXP__
+#undef FLT32_MAX
+#define FLT32_MAX              __FLT32_MAX__
+#undef FLT32_EPSILON
+#define FLT32_EPSILON          __FLT32_EPSILON__
+#undef FLT32_MIN
+#define FLT32_MIN              __FLT32_MIN__
+#undef FLT32_DECIMAL_DIG
+#define FLT32_DECIMAL_DIG      __FLT32_DECIMAL_DIG__
+#undef FLT32_TRUE_MIN
+#define FLT32_TRUE_MIN         __FLT32_DENORM_MIN__
+#endif /* __FLT32_MANT_DIG__.  */
+
+#ifdef __FLT64_MANT_DIG__
+#undef FLT64_MANT_DIG
+#define FLT64_MANT_DIG         __FLT64_MANT_DIG__
+#undef FLT64_DIG
+#define FLT64_DIG              __FLT64_DIG__
+#undef FLT64_MIN_EXP
+#define FLT64_MIN_EXP          __FLT64_MIN_EXP__
+#undef FLT64_MIN_10_EXP
+#define FLT64_MIN_10_EXP       __FLT64_MIN_10_EXP__
+#undef FLT64_MAX_EXP
+#define FLT64_MAX_EXP          __FLT64_MAX_EXP__
+#undef FLT64_MAX_10_EXP
+#define FLT64_MAX_10_EXP       __FLT64_MAX_10_EXP__
+#undef FLT64_MAX
+#define FLT64_MAX              __FLT64_MAX__
+#undef FLT64_EPSILON
+#define FLT64_EPSILON          __FLT64_EPSILON__
+#undef FLT64_MIN
+#define FLT64_MIN              __FLT64_MIN__
+#undef FLT64_DECIMAL_DIG
+#define FLT64_DECIMAL_DIG      __FLT64_DECIMAL_DIG__
+#undef FLT64_TRUE_MIN
+#define FLT64_TRUE_MIN         __FLT64_DENORM_MIN__
+#endif /* __FLT64_MANT_DIG__.  */
+
+#ifdef __FLT128_MANT_DIG__
+#undef FLT128_MANT_DIG
+#define FLT128_MANT_DIG                __FLT128_MANT_DIG__
+#undef FLT128_DIG
+#define FLT128_DIG             __FLT128_DIG__
+#undef FLT128_MIN_EXP
+#define FLT128_MIN_EXP         __FLT128_MIN_EXP__
+#undef FLT128_MIN_10_EXP
+#define FLT128_MIN_10_EXP      __FLT128_MIN_10_EXP__
+#undef FLT128_MAX_EXP
+#define FLT128_MAX_EXP         __FLT128_MAX_EXP__
+#undef FLT128_MAX_10_EXP
+#define FLT128_MAX_10_EXP      __FLT128_MAX_10_EXP__
+#undef FLT128_MAX
+#define FLT128_MAX             __FLT128_MAX__
+#undef FLT128_EPSILON
+#define FLT128_EPSILON         __FLT128_EPSILON__
+#undef FLT128_MIN
+#define FLT128_MIN             __FLT128_MIN__
+#undef FLT128_DECIMAL_DIG
+#define FLT128_DECIMAL_DIG     __FLT128_DECIMAL_DIG__
+#undef FLT128_TRUE_MIN
+#define FLT128_TRUE_MIN                __FLT128_DENORM_MIN__
+#endif /* __FLT128_MANT_DIG__.  */
+
+#ifdef __FLT32X_MANT_DIG__
+#undef FLT32X_MANT_DIG
+#define FLT32X_MANT_DIG                __FLT32X_MANT_DIG__
+#undef FLT32X_DIG
+#define FLT32X_DIG             __FLT32X_DIG__
+#undef FLT32X_MIN_EXP
+#define FLT32X_MIN_EXP         __FLT32X_MIN_EXP__
+#undef FLT32X_MIN_10_EXP
+#define FLT32X_MIN_10_EXP      __FLT32X_MIN_10_EXP__
+#undef FLT32X_MAX_EXP
+#define FLT32X_MAX_EXP         __FLT32X_MAX_EXP__
+#undef FLT32X_MAX_10_EXP
+#define FLT32X_MAX_10_EXP      __FLT32X_MAX_10_EXP__
+#undef FLT32X_MAX
+#define FLT32X_MAX             __FLT32X_MAX__
+#undef FLT32X_EPSILON
+#define FLT32X_EPSILON         __FLT32X_EPSILON__
+#undef FLT32X_MIN
+#define FLT32X_MIN             __FLT32X_MIN__
+#undef FLT32X_DECIMAL_DIG
+#define FLT32X_DECIMAL_DIG     __FLT32X_DECIMAL_DIG__
+#undef FLT32X_TRUE_MIN
+#define FLT32X_TRUE_MIN                __FLT32X_DENORM_MIN__
+#endif /* __FLT32X_MANT_DIG__.  */
+
+#ifdef __FLT64X_MANT_DIG__
+#undef FLT64X_MANT_DIG
+#define FLT64X_MANT_DIG                __FLT64X_MANT_DIG__
+#undef FLT64X_DIG
+#define FLT64X_DIG             __FLT64X_DIG__
+#undef FLT64X_MIN_EXP
+#define FLT64X_MIN_EXP         __FLT64X_MIN_EXP__
+#undef FLT64X_MIN_10_EXP
+#define FLT64X_MIN_10_EXP      __FLT64X_MIN_10_EXP__
+#undef FLT64X_MAX_EXP
+#define FLT64X_MAX_EXP         __FLT64X_MAX_EXP__
+#undef FLT64X_MAX_10_EXP
+#define FLT64X_MAX_10_EXP      __FLT64X_MAX_10_EXP__
+#undef FLT64X_MAX
+#define FLT64X_MAX             __FLT64X_MAX__
+#undef FLT64X_EPSILON
+#define FLT64X_EPSILON         __FLT64X_EPSILON__
+#undef FLT64X_MIN
+#define FLT64X_MIN             __FLT64X_MIN__
+#undef FLT64X_DECIMAL_DIG
+#define FLT64X_DECIMAL_DIG     __FLT64X_DECIMAL_DIG__
+#undef FLT64X_TRUE_MIN
+#define FLT64X_TRUE_MIN                __FLT64X_DENORM_MIN__
+#endif /* __FLT64X_MANT_DIG__.  */
+
+#ifdef __FLT128X_MANT_DIG__
+#undef FLT128X_MANT_DIG
+#define FLT128X_MANT_DIG       __FLT128X_MANT_DIG__
+#undef FLT128X_DIG
+#define FLT128X_DIG            __FLT128X_DIG__
+#undef FLT128X_MIN_EXP
+#define FLT128X_MIN_EXP                __FLT128X_MIN_EXP__
+#undef FLT128X_MIN_10_EXP
+#define FLT128X_MIN_10_EXP     __FLT128X_MIN_10_EXP__
+#undef FLT128X_MAX_EXP
+#define FLT128X_MAX_EXP                __FLT128X_MAX_EXP__
+#undef FLT128X_MAX_10_EXP
+#define FLT128X_MAX_10_EXP     __FLT128X_MAX_10_EXP__
+#undef FLT128X_MAX
+#define FLT128X_MAX            __FLT128X_MAX__
+#undef FLT128X_EPSILON
+#define FLT128X_EPSILON                __FLT128X_EPSILON__
+#undef FLT128X_MIN
+#define FLT128X_MIN            __FLT128X_MIN__
+#undef FLT128X_DECIMAL_DIG
+#define FLT128X_DECIMAL_DIG    __FLT128X_DECIMAL_DIG__
+#undef FLT128X_TRUE_MIN
+#define FLT128X_TRUE_MIN       __FLT128X_DENORM_MIN__
+#endif /* __FLT128X_MANT_DIG__.  */
+
+#endif /* __STDC_WANT_IEC_60559_TYPES_EXT__.  */
+
 #ifdef __STDC_WANT_DEC_FP__
 /* Draft Technical Report 24732, extension for decimal floating-point
    arithmetic: Characteristic of decimal floating types <float.h>.  */

diff --git a/gcc/real.c b/gcc/real.c
index 25f0a5b1466300cc966f0ca8b03736934987de98..66e88e2ad366f7848609d157074c80420d778bcf 100644 (file)
--- a/gcc/real.c
+++ b/gcc/real.c
@@ -3043,6 +3043,7 @@ const struct real_format ieee_single_format =
     128,
     31,
     31,
+    32,
     false,
     true,
     true,
@@ -3065,6 +3066,7 @@ const struct real_format mips_single_format =
     128,
     31,
     31,
+    32,
     false,
     true,
     true,
@@ -3087,6 +3089,7 @@ const struct real_format motorola_single_format =
     128,
     31,
     31,
+    32,
     false,
     true,
     true,
@@ -3120,6 +3123,7 @@ const struct real_format spu_single_format =
     129,
     31,
     31,
+    0,
     true,
     false,
     false,
@@ -3330,6 +3334,7 @@ const struct real_format ieee_double_format =
     1024,
     63,
     63,
+    64,
     false,
     true,
     true,
@@ -3352,6 +3357,7 @@ const struct real_format mips_double_format =
     1024,
     63,
     63,
+    64,
     false,
     true,
     true,
@@ -3374,6 +3380,7 @@ const struct real_format motorola_double_format =
     1024,
     63,
     63,
+    64,
     false,
     true,
     true,
@@ -3719,6 +3726,7 @@ const struct real_format ieee_extended_motorola_format =
     16384,
     95,
     95,
+    0,
     false,
     true,
     true,
@@ -3741,6 +3749,7 @@ const struct real_format ieee_extended_intel_96_format =
     16384,
     79,
     79,
+    65,
     false,
     true,
     true,
@@ -3763,6 +3772,7 @@ const struct real_format ieee_extended_intel_128_format =
     16384,
     79,
     79,
+    65,
     false,
     true,
     true,
@@ -3787,6 +3797,7 @@ const struct real_format ieee_extended_intel_96_round_53_format =
     16384,
     79,
     79,
+    33,
     false,
     true,
     true,
@@ -3876,6 +3887,7 @@ const struct real_format ibm_extended_format =
     1024,
     127,
     -1,
+    0,
     false,
     true,
     true,
@@ -3898,6 +3910,7 @@ const struct real_format mips_extended_format =
     1024,
     127,
     -1,
+    0,
     false,
     true,
     true,
@@ -4162,6 +4175,7 @@ const struct real_format ieee_quad_format =
     16384,
     127,
     127,
+    128,
     false,
     true,
     true,
@@ -4184,6 +4198,7 @@ const struct real_format mips_quad_format =
     16384,
     127,
     127,
+    128,
     false,
     true,
     true,
@@ -4485,6 +4500,7 @@ const struct real_format vax_f_format =
     127,
     15,
     15,
+    0,
     false,
     false,
     false,
@@ -4507,6 +4523,7 @@ const struct real_format vax_d_format =
     127,
     15,
     15,
+    0,
     false,
     false,
     false,
@@ -4529,6 +4546,7 @@ const struct real_format vax_g_format =
     1023,
     15,
     15,
+    0,
     false,
     false,
     false,
@@ -4606,6 +4624,7 @@ const struct real_format decimal_single_format =
     97,
     31,
     31,
+    32,
     false,
     true,
     true,
@@ -4629,6 +4648,7 @@ const struct real_format decimal_double_format =
     385,
     63,
     63,
+    64,
     false,
     true,
     true,
@@ -4652,6 +4672,7 @@ const struct real_format decimal_quad_format =
     6145,
     127,
     127,
+    128,
     false,
     true,
     true,
@@ -4790,6 +4811,7 @@ const struct real_format ieee_half_format =
     16,
     15,
     15,
+    16,
     false,
     true,
     true,
@@ -4815,6 +4837,7 @@ const struct real_format arm_half_format =
     17,
     15,
     15,
+    0,
     false,
     true,
     false,
@@ -4861,6 +4884,7 @@ const struct real_format real_internal_format =
     MAX_EXP,
     -1,
     -1,
+    0,
     false,
     false,
     true,

diff --git a/gcc/real.h b/gcc/real.h
index be95161cf0a8f3700d17a8e45ec83ad8c4eaac2a..59af580e78f2637be84f71b98b45ec6611053222 100644 (file)
--- a/gcc/real.h
+++ b/gcc/real.h
@@ -139,6 +139,17 @@ struct real_format
      or -1 for a complex encoding.  */
   int signbit_rw;
 
+  /* If this is an IEEE interchange format, the number of bits in the
+     format; otherwise, if it is an IEEE extended format, one more
+     than the greatest number of bits in an interchange format it
+     extends; otherwise 0.  Formats need not follow the IEEE 754-2008
+     recommended practice regarding how signaling NaNs are identified,
+     and may vary in the choice of default NaN, but must follow other
+     IEEE practice regarding having NaNs, infinities and subnormal
+     values, and the relation of minimum and maximum exponents, and,
+     for interchange formats, the details of the encoding.  */
+  int ieee_bits;
+
   /* Default rounding mode for operations on this format.  */
   bool round_towards_zero;
   bool has_sign_dependent_rounding;

diff --git a/gcc/target.def b/gcc/target.def
index 929d9ea05a84711cae200e79a2c6580de50c4b73..8d50691206356e460b38c1264be1f28cf15290cf 100644 (file)
--- a/gcc/target.def
+++ b/gcc/target.def
@@ -3333,6 +3333,26 @@ hook returns true for all of @code{SFmode}, @code{DFmode}, \n\
  bool, (machine_mode mode),
  default_libgcc_floating_mode_supported_p)
 
+DEFHOOK
+(floatn_mode,
+ "Define this to return the machine mode to use for the type \n\
+@code{_Float@var{n}}, if @var{extended} is false, or the type \n\
+@code{_Float@var{n}x}, if @var{extended} is true.  If such a type \n\
+is not supported, return @code{VOIDmode}.  The default version of this \n\
+hook returns @code{SFmode} for @code{_Float32}, @code{DFmode} for \n\
+@code{_Float64} and @code{_Float32x} and @code{TFmode} for \n\
+@code{_Float128}, if those modes exist and satisfy the requirements for \n\
+those types and pass @code{TARGET_SCALAR_MODE_SUPPORTED_P} and \n\
+@code{TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P}; for @code{_Float64x}, it \n\
+returns the first of @code{XFmode} and @code{TFmode} that exists and \n\
+satisfies the same requirements; for other types, it returns \n\
+@code{VOIDmode}.  The hook is only called for values of @var{n} and \n\
+@var{extended} that are valid according to ISO/IEC TS 18661-3:2015; that \n\
+is, @var{n} is one of 32, 64, 128, or, if @var{extended} is false, 16 or \n\
+greater than 128 and a multiple of 32.",
+ machine_mode, (int n, bool extended),
+ default_floatn_mode)
+
 /* Compute cost of moving data from a register of class FROM to one of
    TO, using MODE.  */
 DEFHOOK

diff --git a/gcc/targhooks.c b/gcc/targhooks.c
index 69037c1ca0ff614f68d8c24f33634c6f033085f1..9d5be1706ddd3601a80844d74e5d8e4fc1ee83a9 100644 (file)
--- a/gcc/targhooks.c
+++ b/gcc/targhooks.c
@@ -76,6 +76,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "gimplify.h"
 #include "predict.h"
 #include "params.h"
+#include "real.h"
 
 
 bool
@@ -461,6 +462,92 @@ default_libgcc_floating_mode_supported_p (machine_mode mode)
     }
 }
 
+/* Return the machine mode to use for the type _FloatN, if EXTENDED is
+   false, or _FloatNx, if EXTENDED is true, or VOIDmode if not
+   supported.  */
+machine_mode
+default_floatn_mode (int n, bool extended)
+{
+  if (extended)
+    {
+      machine_mode cand1 = VOIDmode, cand2 = VOIDmode;
+      switch (n)
+       {
+       case 32:
+#ifdef HAVE_DFmode
+         cand1 = DFmode;
+#endif
+         break;
+
+       case 64:
+#ifdef HAVE_XFmode
+         cand1 = XFmode;
+#endif
+#ifdef HAVE_TFmode
+         cand2 = TFmode;
+#endif
+         break;
+
+       case 128:
+         break;
+
+       default:
+         /* Those are the only valid _FloatNx types.  */
+         gcc_unreachable ();
+       }
+      if (cand1 != VOIDmode
+         && REAL_MODE_FORMAT (cand1)->ieee_bits > n
+         && targetm.scalar_mode_supported_p (cand1)
+         && targetm.libgcc_floating_mode_supported_p (cand1))
+       return cand1;
+      if (cand2 != VOIDmode
+         && REAL_MODE_FORMAT (cand2)->ieee_bits > n
+         && targetm.scalar_mode_supported_p (cand2)
+         && targetm.libgcc_floating_mode_supported_p (cand2))
+       return cand2;
+    }
+  else
+    {
+      machine_mode cand = VOIDmode;
+      switch (n)
+       {
+       case 16:
+         /* We do not use HFmode for _Float16 by default because the
+            required excess precision support is not present and the
+            interactions with promotion of the older __fp16 need to
+            be worked out.  */
+         break;
+
+       case 32:
+#ifdef HAVE_SFmode
+         cand = SFmode;
+#endif
+         break;
+
+       case 64:
+#ifdef HAVE_DFmode
+         cand = DFmode;
+#endif
+         break;
+
+       case 128:
+#ifdef HAVE_TFmode
+         cand = TFmode;
+#endif
+         break;
+
+       default:
+         break;
+       }
+      if (cand != VOIDmode
+         && REAL_MODE_FORMAT (cand)->ieee_bits == n
+         && targetm.scalar_mode_supported_p (cand)
+         && targetm.libgcc_floating_mode_supported_p (cand))
+       return cand;
+    }
+  return VOIDmode;
+}
+
 /* Make some target macros useable by target-independent code.  */
 bool
 targhook_words_big_endian (void)

diff --git a/gcc/targhooks.h b/gcc/targhooks.h
index 2e7ca72a871785d251046ec0480fe35c71c09b3e..a2fa49f89b35127cc09c19bff84e15415d989b27 100644 (file)
--- a/gcc/targhooks.h
+++ b/gcc/targhooks.h
@@ -73,6 +73,7 @@ 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 machine_mode default_floatn_mode (int, bool);
 extern bool targhook_words_big_endian (void);
 extern bool targhook_float_words_big_endian (void);
 extern bool default_float_exceptions_rounding_supported_p (void);

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index fa0c6985b9eb78a95e98d1ef638f058cffc1b50f..91ea2788d4c1b8a70f4d98138be94caa285257bd 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,77 @@
+2016-08-19  Joseph Myers  <joseph@codesourcery.com>
+
+       PR c/32187
+       * lib/target-supports.exp (check_effective_target_float16)
+       (check_effective_target_float32, check_effective_target_float64)
+       (check_effective_target_float128, check_effective_target_float32x)
+       (check_effective_target_float64x)
+       (check_effective_target_float128x)
+       (check_effective_target_float16_runtime)
+       (check_effective_target_float32_runtime)
+       (check_effective_target_float64_runtime)
+       (check_effective_target_float128_runtime)
+       (check_effective_target_float32x_runtime)
+       (check_effective_target_float64x_runtime)
+       (check_effective_target_float128x_runtime)
+       (check_effective_target_floatn_nx_runtime)
+       (add_options_for_float16, add_options_for_float32)
+       (add_options_for_float64, add_options_for_float128)
+       (add_options_for_float32x, add_options_for_float64x)
+       (add_options_for_float128x): New procedures.
+       * gcc.dg/dfp/floatn.c, gcc.dg/float128-typeof.c,
+       gcc.dg/float128x-typeof.c, gcc.dg/float16-typeof.c,
+       gcc.dg/float32-typeof.c, gcc.dg/float32x-typeof.c,
+       gcc.dg/float64-typeof.c, gcc.dg/float64x-typeof.c,
+       gcc.dg/floatn-arithconv.c, gcc.dg/floatn-errs.c,
+       gcc.dg/floatn-typeof.h, gcc.dg/torture/float128-basic.c,
+       gcc.dg/torture/float128-complex.c,
+       gcc.dg/torture/float128-floath.c, gcc.dg/torture/float128-tg.c,
+       gcc.dg/torture/float128x-basic.c,
+       gcc.dg/torture/float128x-complex.c,
+       gcc.dg/torture/float128x-floath.c, gcc.dg/torture/float128x-tg.c,
+       gcc.dg/torture/float16-basic.c, gcc.dg/torture/float16-complex.c,
+       gcc.dg/torture/float16-floath.c, gcc.dg/torture/float16-tg.c,
+       gcc.dg/torture/float32-basic.c, gcc.dg/torture/float32-complex.c,
+       gcc.dg/torture/float32-floath.c, gcc.dg/torture/float32-tg.c,
+       gcc.dg/torture/float32x-basic.c,
+       gcc.dg/torture/float32x-complex.c,
+       gcc.dg/torture/float32x-floath.c, gcc.dg/torture/float32x-tg.c,
+       gcc.dg/torture/float64-basic.c, gcc.dg/torture/float64-complex.c,
+       gcc.dg/torture/float64-floath.c, gcc.dg/torture/float64-tg.c,
+       gcc.dg/torture/float64x-basic.c,
+       gcc.dg/torture/float64x-complex.c,
+       gcc.dg/torture/float64x-floath.c, gcc.dg/torture/float64x-tg.c,
+       gcc.dg/torture/floatn-basic.h, gcc.dg/torture/floatn-complex.h,
+       gcc.dg/torture/floatn-convert.c, gcc.dg/torture/floatn-floath.h,
+       gcc.dg/torture/floatn-tg.h,
+       gcc.dg/torture/fp-int-convert-float128-ieee-timode.c,
+       gcc.dg/torture/fp-int-convert-float128-ieee.c,
+       gcc.dg/torture/fp-int-convert-float128x-timode.c,
+       gcc.dg/torture/fp-int-convert-float128x.c,
+       gcc.dg/torture/fp-int-convert-float16-timode.c,
+       gcc.dg/torture/fp-int-convert-float16.c,
+       gcc.dg/torture/fp-int-convert-float32-timode.c,
+       gcc.dg/torture/fp-int-convert-float32.c,
+       gcc.dg/torture/fp-int-convert-float32x-timode.c,
+       gcc.dg/torture/fp-int-convert-float32x.c,
+       gcc.dg/torture/fp-int-convert-float64-timode.c,
+       gcc.dg/torture/fp-int-convert-float64.c,
+       gcc.dg/torture/fp-int-convert-float64x-timode.c,
+       gcc.dg/torture/fp-int-convert-float64x.c: New tests.
+       * gcc.dg/torture/fp-int-convert.h (TEST_I_F): Add argument for
+       maximum exponent of floating-point type.  Use it in testing
+       whether 0x8...0 fits in the floating-point type.  Always treat -1
+       (signed 0xf...f) as fitting in the floating-point type.
+       (M_OK1): New macro.
+       * gcc.dg/torture/fp-int-convert-double.c,
+       gcc.dg/torture/fp-int-convert-float.c,
+       gcc.dg/torture/fp-int-convert-float128-timode.c,
+       gcc.dg/torture/fp-int-convert-float128.c,
+       gcc.dg/torture/fp-int-convert-float80-timode.c,
+       gcc.dg/torture/fp-int-convert-float80.c,
+       gcc.dg/torture/fp-int-convert-long-double.c,
+       gcc.dg/torture/fp-int-convert-timode.c: Update calls to TEST_I_F.
+
 2016-08-19  Jakub Jelinek  <jakub@redhat.com>
 
        PR fortran/72744

diff --git a/gcc/testsuite/gcc.dg/dfp/floatn.c b/gcc/testsuite/gcc.dg/dfp/floatn.c
new file mode 100644 (file)
index 0000000..4fa7a09
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/dfp/floatn.c
@@ -0,0 +1,20 @@
+/* Tests for _FloatN / _FloatNx types: test erroneous mixing with DFP.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32 } */
+/* { dg-require-effective-target float32x } */
+
+_Decimal32 d32;
+_Float32 f32;
+_Float32x f32x;
+int i;
+
+void
+f (void)
+{
+  (void) (d32 + f32); /* { dg-error "mix operands" } */
+  (void) (f32x * d32); /* { dg-error "mix operands" } */
+  (void) (i ? d32 : f32); /* { dg-error "mix operands" } */
+}

diff --git a/gcc/testsuite/gcc.dg/float128-typeof.c b/gcc/testsuite/gcc.dg/float128-typeof.c
new file mode 100644 (file)
index 0000000..b6f95b7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/float128-typeof.c
@@ -0,0 +1,9 @@
+/* Test _Float128 constant types.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float128 } */
+/* { dg-require-effective-target float128 } */
+
+#define WIDTH 128
+#define EXT 0
+#include "floatn-typeof.h"

diff --git a/gcc/testsuite/gcc.dg/float128x-typeof.c b/gcc/testsuite/gcc.dg/float128x-typeof.c
new file mode 100644 (file)
index 0000000..3ab2ce2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/float128x-typeof.c
@@ -0,0 +1,9 @@
+/* Test _Float128x constant types.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float128x } */
+/* { dg-require-effective-target float128x } */
+
+#define WIDTH 128
+#define EXT 1
+#include "floatn-typeof.h"

diff --git a/gcc/testsuite/gcc.dg/float16-typeof.c b/gcc/testsuite/gcc.dg/float16-typeof.c
new file mode 100644 (file)
index 0000000..a781239
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/float16-typeof.c
@@ -0,0 +1,9 @@
+/* Test _Float16 constant types.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float16 } */
+/* { dg-require-effective-target float16 } */
+
+#define WIDTH 16
+#define EXT 0
+#include "floatn-typeof.h"

diff --git a/gcc/testsuite/gcc.dg/float32-typeof.c b/gcc/testsuite/gcc.dg/float32-typeof.c
new file mode 100644 (file)
index 0000000..4b9ccf8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/float32-typeof.c
@@ -0,0 +1,9 @@
+/* Test _Float32 constant types.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-require-effective-target float32 } */
+
+#define WIDTH 32
+#define EXT 0
+#include "floatn-typeof.h"

diff --git a/gcc/testsuite/gcc.dg/float32x-typeof.c b/gcc/testsuite/gcc.dg/float32x-typeof.c
new file mode 100644 (file)
index 0000000..9af6077
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/float32x-typeof.c
@@ -0,0 +1,9 @@
+/* Test _Float32x constant types.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32x } */
+
+#define WIDTH 32
+#define EXT 1
+#include "floatn-typeof.h"

diff --git a/gcc/testsuite/gcc.dg/float64-typeof.c b/gcc/testsuite/gcc.dg/float64-typeof.c
new file mode 100644 (file)
index 0000000..aa7d504
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/float64-typeof.c
@@ -0,0 +1,9 @@
+/* Test _Float64 constant types.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float64 } */
+/* { dg-require-effective-target float64 } */
+
+#define WIDTH 64
+#define EXT 0
+#include "floatn-typeof.h"

diff --git a/gcc/testsuite/gcc.dg/float64x-typeof.c b/gcc/testsuite/gcc.dg/float64x-typeof.c
new file mode 100644 (file)
index 0000000..934d6cf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/float64x-typeof.c
@@ -0,0 +1,9 @@
+/* Test _Float64x constant types.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float64x } */
+/* { dg-require-effective-target float64x } */
+
+#define WIDTH 64
+#define EXT 1
+#include "floatn-typeof.h"

diff --git a/gcc/testsuite/gcc.dg/floatn-arithconv.c b/gcc/testsuite/gcc.dg/floatn-arithconv.c
new file mode 100644 (file)
index 0000000..c3eb24e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/floatn-arithconv.c
@@ -0,0 +1,50 @@
+/* Tests for _FloatN / _FloatNx types: test usual arithmetic
+   conversions.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-add-options float64 } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32 } */
+/* { dg-require-effective-target float64 } */
+/* { dg-require-effective-target float32x } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+
+int i;
+
+#define TEST(VAR, TYPE1, TYPE2, RESTYPE)                       \
+  do                                                           \
+    {                                                          \
+      typedef __typeof__ ((TYPE1) 0 + (TYPE2) 1) restype;      \
+      typedef __typeof__ (i ? (TYPE1) 0 : (TYPE2) 1) restype2; \
+      typedef RESTYPE exptype;                                 \
+      extern restype VAR;                                      \
+      extern restype2 VAR;                                     \
+      extern exptype VAR;                                      \
+    }                                                          \
+  while (0)
+
+void
+f (void)
+{
+  TEST (v1, float, double, double);
+#if DBL_MANT_DIG > FLT32_MANT_DIG
+  TEST (v2, double, _Float32, double);
+#endif
+#if DBL_MANT_DIG <= FLT64_MANT_DIG
+  TEST (v3, double, _Float64, _Float64);
+#endif
+#if DBL_MANT_DIG >= FLT32X_MANT_DIG
+  TEST (v4, double, _Float32x, double);
+#endif
+#if FLT_MANT_DIG <= FLT32_MANT_DIG
+  TEST (v5, float, _Float32, _Float32);
+#endif
+#if FLT32X_MANT_DIG <= FLT64_MANT_DIG
+  TEST (v6, _Float32x, _Float64, _Float64);
+#endif
+  TEST (v7, _Float32, _Float64, _Float64);
+  TEST (v8, _Float32, _Float32x, _Float32x);
+}

diff --git a/gcc/testsuite/gcc.dg/floatn-errs.c b/gcc/testsuite/gcc.dg/floatn-errs.c
new file mode 100644 (file)
index 0000000..0dcc2f1
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/floatn-errs.c
@@ -0,0 +1,44 @@
+/* Tests for _FloatN / _FloatNx types: test erroneous code.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-add-options float64 } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32 } */
+/* { dg-require-effective-target float32x } */
+/* { dg-require-effective-target float64 } */
+
+/* _FloatN, _FloatNx and standard types are incompatible even if they
+   have the same ABI.  */
+
+extern float a; /* { dg-message "previous declaration" } */
+extern _Float32 a; /* { dg-error "conflicting" } */
+
+extern double b; /* { dg-message "previous declaration" } */
+extern _Float32x b; /* { dg-error "conflicting" } */
+
+extern _Float64 c; /* { dg-message "previous declaration" } */
+extern _Float32x c; /* { dg-error "conflicting" } */
+
+/* These types are not promoted in old-style function definitions.  */
+
+void f (_Float32);
+void
+f (x)
+     _Float32 x;
+{
+}
+
+void g (double); /* { dg-error "prototype declaration" } */
+void
+g (x)
+     _Float32 x; /* { dg-error "match prototype" } */
+{
+}
+
+void h (_Float64); /* { dg-error "prototype declaration" } */
+void
+h (x)
+     _Float32 x; /* { dg-error "match prototype" } */
+{
+}

diff --git a/gcc/testsuite/gcc.dg/floatn-typeof.h b/gcc/testsuite/gcc.dg/floatn-typeof.h
new file mode 100644 (file)
index 0000000..4a3e586
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/floatn-typeof.h
@@ -0,0 +1,22 @@
+/* Tests for _FloatN / _FloatNx types: test types of constants.
+   Before including this file, define WIDTH as the value N; define EXT
+   to 1 for _FloatNx and 0 for _FloatN.  */
+
+#define CONCATX(X, Y) X ## Y
+#define CONCAT(X, Y) CONCATX (X, Y)
+#define CONCAT3(X, Y, Z) CONCAT (CONCAT (X, Y), Z)
+#define CONCAT4(W, X, Y, Z) CONCAT (CONCAT (CONCAT (W, X), Y), Z)
+
+#if EXT
+# define TYPE CONCAT3 (_Float, WIDTH, x)
+# define CST(C) CONCAT4 (C, f, WIDTH, x)
+# define CSTU(C) CONCAT4 (C, F, WIDTH, x)
+#else
+# define TYPE CONCAT (_Float, WIDTH)
+# define CST(C) CONCAT3 (C, f, WIDTH)
+# define CSTU(C) CONCAT3 (C, F, WIDTH)
+#endif
+
+extern TYPE test_type;
+extern __typeof (CST (1.0)) test_type;
+extern __typeof (CSTU (1.0)) test_type;

diff --git a/gcc/testsuite/gcc.dg/torture/float128-basic.c b/gcc/testsuite/gcc.dg/torture/float128-basic.c
new file mode 100644 (file)
index 0000000..b23d45b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float128-basic.c
@@ -0,0 +1,9 @@
+/* Test _Float128.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128 } */
+/* { dg-require-effective-target float128_runtime } */
+
+#define WIDTH 128
+#define EXT 0
+#include "floatn-basic.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float128-complex.c b/gcc/testsuite/gcc.dg/torture/float128-complex.c
new file mode 100644 (file)
index 0000000..fe93fe6
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float128-complex.c
@@ -0,0 +1,9 @@
+/* Test _Float128 complex arithmetic.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128 } */
+/* { dg-require-effective-target float128_runtime } */
+
+#define WIDTH 128
+#define EXT 0
+#include "floatn-complex.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float128-floath.c b/gcc/testsuite/gcc.dg/torture/float128-floath.c
new file mode 100644 (file)
index 0000000..68147c3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float128-floath.c
@@ -0,0 +1,61 @@
+/* Test _Float128 <float.h> macros.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128 } */
+/* { dg-require-effective-target float128_runtime } */
+
+#define WIDTH 128
+#define EXT 0
+#include "floatn-floath.h"
+
+#ifndef FLT128_MANT_DIG
+# error "FLT128_MANT_DIG undefined"
+#endif
+
+#ifndef FLT128_DECIMAL_DIG
+# error "FLT128_DECIMAL_DIG undefined"
+#endif
+
+#ifndef FLT128_DIG
+# error "FLT128_DIG undefined"
+#endif
+
+#ifndef FLT128_MIN_EXP
+# error "FLT128_MIN_EXP undefined"
+#endif
+
+#ifndef FLT128_MIN_10_EXP
+# error "FLT128_MIN_10_EXP undefined"
+#endif
+
+#ifndef FLT128_MAX_EXP
+# error "FLT128_MAX_EXP undefined"
+#endif
+
+#ifndef FLT128_MAX_10_EXP
+# error "FLT128_MAX_10_EXP undefined"
+#endif
+
+#ifndef FLT128_MAX
+# error "FLT128_MAX undefined"
+#endif
+
+#ifndef FLT128_EPSILON
+# error "FLT128_EPSILON undefined"
+#endif
+
+#ifndef FLT128_MIN
+# error "FLT128_MIN undefined"
+#endif
+
+#ifndef FLT128_TRUE_MIN
+# error "FLT128_TRUE_MIN undefined"
+#endif
+
+#if FLT128_DECIMAL_DIG > DECIMAL_DIG
+# error "FLT128_DECIMAL_DIG > DECIMAL_DIG"
+#endif
+
+#if FLT128_MANT_DIG != 113 || FLT128_MAX_EXP != 16384 || FLT128_MIN_EXP != -16381
+# error "_Float128 bad format"
+#endif

diff --git a/gcc/testsuite/gcc.dg/torture/float128-tg.c b/gcc/testsuite/gcc.dg/torture/float128-tg.c
new file mode 100644 (file)
index 0000000..c1b6398
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float128-tg.c
@@ -0,0 +1,9 @@
+/* Test _Float128 type-generic built-in functions.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128 } */
+/* { dg-require-effective-target float128_runtime } */
+
+#define WIDTH 128
+#define EXT 0
+#include "floatn-tg.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float128x-basic.c b/gcc/testsuite/gcc.dg/torture/float128x-basic.c
new file mode 100644 (file)
index 0000000..75c5a28
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float128x-basic.c
@@ -0,0 +1,9 @@
+/* Test _Float128x.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128x } */
+/* { dg-require-effective-target float128x_runtime } */
+
+#define WIDTH 128
+#define EXT 1
+#include "floatn-basic.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float128x-complex.c b/gcc/testsuite/gcc.dg/torture/float128x-complex.c
new file mode 100644 (file)
index 0000000..185b501
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float128x-complex.c
@@ -0,0 +1,9 @@
+/* Test _Float128x complex arithmetic.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128x } */
+/* { dg-require-effective-target float128x_runtime } */
+
+#define WIDTH 128
+#define EXT 1
+#include "floatn-complex.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float128x-floath.c b/gcc/testsuite/gcc.dg/torture/float128x-floath.c
new file mode 100644 (file)
index 0000000..0fc3db2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float128x-floath.c
@@ -0,0 +1,61 @@
+/* Test _Float128x <float.h> macros.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128x } */
+/* { dg-require-effective-target float128x_runtime } */
+
+#define WIDTH 128
+#define EXT 1
+#include "floatn-floath.h"
+
+#ifndef FLT128X_MANT_DIG
+# error "FLT128X_MANT_DIG undefined"
+#endif
+
+#ifndef FLT128X_DECIMAL_DIG
+# error "FLT128X_DECIMAL_DIG undefined"
+#endif
+
+#ifndef FLT128X_DIG
+# error "FLT128X_DIG undefined"
+#endif
+
+#ifndef FLT128X_MIN_EXP
+# error "FLT128X_MIN_EXP undefined"
+#endif
+
+#ifndef FLT128X_MIN_10_EXP
+# error "FLT128X_MIN_10_EXP undefined"
+#endif
+
+#ifndef FLT128X_MAX_EXP
+# error "FLT128X_MAX_EXP undefined"
+#endif
+
+#ifndef FLT128X_MAX_10_EXP
+# error "FLT128X_MAX_10_EXP undefined"
+#endif
+
+#ifndef FLT128X_MAX
+# error "FLT128X_MAX undefined"
+#endif
+
+#ifndef FLT128X_EPSILON
+# error "FLT128X_EPSILON undefined"
+#endif
+
+#ifndef FLT128X_MIN
+# error "FLT128X_MIN undefined"
+#endif
+
+#ifndef FLT128X_TRUE_MIN
+# error "FLT128X_TRUE_MIN undefined"
+#endif
+
+#if FLT128X_DECIMAL_DIG > DECIMAL_DIG
+# error "FLT128X_DECIMAL_DIG > DECIMAL_DIG"
+#endif
+
+#if FLT128X_MANT_DIG < 128 || FLT128X_MAX_EXP < 65536 || FLT128X_MIN_EXP + FLT128X_MAX_EXP != 3
+# error "_Float128x bad format"
+#endif

diff --git a/gcc/testsuite/gcc.dg/torture/float128x-tg.c b/gcc/testsuite/gcc.dg/torture/float128x-tg.c
new file mode 100644 (file)
index 0000000..0dc1e0f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float128x-tg.c
@@ -0,0 +1,9 @@
+/* Test _Float128x type-generic built-in functions.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128x } */
+/* { dg-require-effective-target float128x_runtime } */
+
+#define WIDTH 128
+#define EXT 1
+#include "floatn-tg.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float16-basic.c b/gcc/testsuite/gcc.dg/torture/float16-basic.c
new file mode 100644 (file)
index 0000000..e94aa20
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float16-basic.c
@@ -0,0 +1,9 @@
+/* Test _Float16.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float16 } */
+/* { dg-require-effective-target float16_runtime } */
+
+#define WIDTH 16
+#define EXT 0
+#include "floatn-basic.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float16-complex.c b/gcc/testsuite/gcc.dg/torture/float16-complex.c
new file mode 100644 (file)
index 0000000..463e703
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float16-complex.c
@@ -0,0 +1,9 @@
+/* Test _Float16 complex arithmetic.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float16 } */
+/* { dg-require-effective-target float16_runtime } */
+
+#define WIDTH 16
+#define EXT 0
+#include "floatn-complex.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float16-floath.c b/gcc/testsuite/gcc.dg/torture/float16-floath.c
new file mode 100644 (file)
index 0000000..6857c2e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float16-floath.c
@@ -0,0 +1,61 @@
+/* Test _Float16 <float.h> macros.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float16 } */
+/* { dg-require-effective-target float16_runtime } */
+
+#define WIDTH 16
+#define EXT 0
+#include "floatn-floath.h"
+
+#ifndef FLT16_MANT_DIG
+# error "FLT16_MANT_DIG undefined"
+#endif
+
+#ifndef FLT16_DECIMAL_DIG
+# error "FLT16_DECIMAL_DIG undefined"
+#endif
+
+#ifndef FLT16_DIG
+# error "FLT16_DIG undefined"
+#endif
+
+#ifndef FLT16_MIN_EXP
+# error "FLT16_MIN_EXP undefined"
+#endif
+
+#ifndef FLT16_MIN_10_EXP
+# error "FLT16_MIN_10_EXP undefined"
+#endif
+
+#ifndef FLT16_MAX_EXP
+# error "FLT16_MAX_EXP undefined"
+#endif
+
+#ifndef FLT16_MAX_10_EXP
+# error "FLT16_MAX_10_EXP undefined"
+#endif
+
+#ifndef FLT16_MAX
+# error "FLT16_MAX undefined"
+#endif
+
+#ifndef FLT16_EPSILON
+# error "FLT16_EPSILON undefined"
+#endif
+
+#ifndef FLT16_MIN
+# error "FLT16_MIN undefined"
+#endif
+
+#ifndef FLT16_TRUE_MIN
+# error "FLT16_TRUE_MIN undefined"
+#endif
+
+#if FLT16_DECIMAL_DIG > DECIMAL_DIG
+# error "FLT16_DECIMAL_DIG > DECIMAL_DIG"
+#endif
+
+#if FLT16_MANT_DIG != 11 || FLT16_MAX_EXP != 16 || FLT16_MIN_EXP != -13
+# error "_Float16 bad format"
+#endif

diff --git a/gcc/testsuite/gcc.dg/torture/float16-tg.c b/gcc/testsuite/gcc.dg/torture/float16-tg.c
new file mode 100644 (file)
index 0000000..39e8285
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float16-tg.c
@@ -0,0 +1,9 @@
+/* Test _Float16 type-generic built-in functions.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float16 } */
+/* { dg-require-effective-target float16_runtime } */
+
+#define WIDTH 16
+#define EXT 0
+#include "floatn-tg.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float32-basic.c b/gcc/testsuite/gcc.dg/torture/float32-basic.c
new file mode 100644 (file)
index 0000000..2d3e7a9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float32-basic.c
@@ -0,0 +1,9 @@
+/* Test _Float32.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-require-effective-target float32_runtime } */
+
+#define WIDTH 32
+#define EXT 0
+#include "floatn-basic.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float32-complex.c b/gcc/testsuite/gcc.dg/torture/float32-complex.c
new file mode 100644 (file)
index 0000000..8717a3f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float32-complex.c
@@ -0,0 +1,9 @@
+/* Test _Float32 complex arithmetic.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-require-effective-target float32_runtime } */
+
+#define WIDTH 32
+#define EXT 0
+#include "floatn-complex.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float32-floath.c b/gcc/testsuite/gcc.dg/torture/float32-floath.c
new file mode 100644 (file)
index 0000000..795cb21
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float32-floath.c
@@ -0,0 +1,61 @@
+/* Test _Float32 <float.h> macros.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-require-effective-target float32_runtime } */
+
+#define WIDTH 32
+#define EXT 0
+#include "floatn-floath.h"
+
+#ifndef FLT32_MANT_DIG
+# error "FLT32_MANT_DIG undefined"
+#endif
+
+#ifndef FLT32_DECIMAL_DIG
+# error "FLT32_DECIMAL_DIG undefined"
+#endif
+
+#ifndef FLT32_DIG
+# error "FLT32_DIG undefined"
+#endif
+
+#ifndef FLT32_MIN_EXP
+# error "FLT32_MIN_EXP undefined"
+#endif
+
+#ifndef FLT32_MIN_10_EXP
+# error "FLT32_MIN_10_EXP undefined"
+#endif
+
+#ifndef FLT32_MAX_EXP
+# error "FLT32_MAX_EXP undefined"
+#endif
+
+#ifndef FLT32_MAX_10_EXP
+# error "FLT32_MAX_10_EXP undefined"
+#endif
+
+#ifndef FLT32_MAX
+# error "FLT32_MAX undefined"
+#endif
+
+#ifndef FLT32_EPSILON
+# error "FLT32_EPSILON undefined"
+#endif
+
+#ifndef FLT32_MIN
+# error "FLT32_MIN undefined"
+#endif
+
+#ifndef FLT32_TRUE_MIN
+# error "FLT32_TRUE_MIN undefined"
+#endif
+
+#if FLT32_DECIMAL_DIG > DECIMAL_DIG
+# error "FLT32_DECIMAL_DIG > DECIMAL_DIG"
+#endif
+
+#if FLT32_MANT_DIG != 24 || FLT32_MAX_EXP != 128 || FLT32_MIN_EXP != -125
+# error "_Float32 bad format"
+#endif

diff --git a/gcc/testsuite/gcc.dg/torture/float32-tg.c b/gcc/testsuite/gcc.dg/torture/float32-tg.c
new file mode 100644 (file)
index 0000000..da480ca
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float32-tg.c
@@ -0,0 +1,9 @@
+/* Test _Float32 type-generic built-in functions.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-require-effective-target float32_runtime } */
+
+#define WIDTH 32
+#define EXT 0
+#include "floatn-tg.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float32x-basic.c b/gcc/testsuite/gcc.dg/torture/float32x-basic.c
new file mode 100644 (file)
index 0000000..f2abc33
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float32x-basic.c
@@ -0,0 +1,9 @@
+/* Test _Float32x.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32x_runtime } */
+
+#define WIDTH 32
+#define EXT 1
+#include "floatn-basic.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float32x-complex.c b/gcc/testsuite/gcc.dg/torture/float32x-complex.c
new file mode 100644 (file)
index 0000000..4a63a50
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float32x-complex.c
@@ -0,0 +1,9 @@
+/* Test _Float32x complex arithmetic.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32x_runtime } */
+
+#define WIDTH 32
+#define EXT 1
+#include "floatn-complex.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float32x-floath.c b/gcc/testsuite/gcc.dg/torture/float32x-floath.c
new file mode 100644 (file)
index 0000000..49e7ba4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float32x-floath.c
@@ -0,0 +1,61 @@
+/* Test _Float32x <float.h> macros.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32x_runtime } */
+
+#define WIDTH 32
+#define EXT 1
+#include "floatn-floath.h"
+
+#ifndef FLT32X_MANT_DIG
+# error "FLT32X_MANT_DIG undefined"
+#endif
+
+#ifndef FLT32X_DECIMAL_DIG
+# error "FLT32X_DECIMAL_DIG undefined"
+#endif
+
+#ifndef FLT32X_DIG
+# error "FLT32X_DIG undefined"
+#endif
+
+#ifndef FLT32X_MIN_EXP
+# error "FLT32X_MIN_EXP undefined"
+#endif
+
+#ifndef FLT32X_MIN_10_EXP
+# error "FLT32X_MIN_10_EXP undefined"
+#endif
+
+#ifndef FLT32X_MAX_EXP
+# error "FLT32X_MAX_EXP undefined"
+#endif
+
+#ifndef FLT32X_MAX_10_EXP
+# error "FLT32X_MAX_10_EXP undefined"
+#endif
+
+#ifndef FLT32X_MAX
+# error "FLT32X_MAX undefined"
+#endif
+
+#ifndef FLT32X_EPSILON
+# error "FLT32X_EPSILON undefined"
+#endif
+
+#ifndef FLT32X_MIN
+# error "FLT32X_MIN undefined"
+#endif
+
+#ifndef FLT32X_TRUE_MIN
+# error "FLT32X_TRUE_MIN undefined"
+#endif
+
+#if FLT32X_DECIMAL_DIG > DECIMAL_DIG
+# error "FLT32X_DECIMAL_DIG > DECIMAL_DIG"
+#endif
+
+#if FLT32X_MANT_DIG < 32 || FLT32X_MAX_EXP < 1024 || FLT32X_MIN_EXP + FLT32X_MAX_EXP != 3
+# error "_Float32x bad format"
+#endif

diff --git a/gcc/testsuite/gcc.dg/torture/float32x-tg.c b/gcc/testsuite/gcc.dg/torture/float32x-tg.c
new file mode 100644 (file)
index 0000000..9f9a3bf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float32x-tg.c
@@ -0,0 +1,9 @@
+/* Test _Float32x type-generic built-in functions.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32x_runtime } */
+
+#define WIDTH 32
+#define EXT 1
+#include "floatn-tg.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float64-basic.c b/gcc/testsuite/gcc.dg/torture/float64-basic.c
new file mode 100644 (file)
index 0000000..decb05f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float64-basic.c
@@ -0,0 +1,9 @@
+/* Test _Float64.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64 } */
+/* { dg-require-effective-target float64_runtime } */
+
+#define WIDTH 64
+#define EXT 0
+#include "floatn-basic.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float64-complex.c b/gcc/testsuite/gcc.dg/torture/float64-complex.c
new file mode 100644 (file)
index 0000000..6a832c2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float64-complex.c
@@ -0,0 +1,9 @@
+/* Test _Float64 complex arithmetic.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64 } */
+/* { dg-require-effective-target float64_runtime } */
+
+#define WIDTH 64
+#define EXT 0
+#include "floatn-complex.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float64-floath.c b/gcc/testsuite/gcc.dg/torture/float64-floath.c
new file mode 100644 (file)
index 0000000..a03d2e7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float64-floath.c
@@ -0,0 +1,61 @@
+/* Test _Float64 <float.h> macros.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64 } */
+/* { dg-require-effective-target float64_runtime } */
+
+#define WIDTH 64
+#define EXT 0
+#include "floatn-floath.h"
+
+#ifndef FLT64_MANT_DIG
+# error "FLT64_MANT_DIG undefined"
+#endif
+
+#ifndef FLT64_DECIMAL_DIG
+# error "FLT64_DECIMAL_DIG undefined"
+#endif
+
+#ifndef FLT64_DIG
+# error "FLT64_DIG undefined"
+#endif
+
+#ifndef FLT64_MIN_EXP
+# error "FLT64_MIN_EXP undefined"
+#endif
+
+#ifndef FLT64_MIN_10_EXP
+# error "FLT64_MIN_10_EXP undefined"
+#endif
+
+#ifndef FLT64_MAX_EXP
+# error "FLT64_MAX_EXP undefined"
+#endif
+
+#ifndef FLT64_MAX_10_EXP
+# error "FLT64_MAX_10_EXP undefined"
+#endif
+
+#ifndef FLT64_MAX
+# error "FLT64_MAX undefined"
+#endif
+
+#ifndef FLT64_EPSILON
+# error "FLT64_EPSILON undefined"
+#endif
+
+#ifndef FLT64_MIN
+# error "FLT64_MIN undefined"
+#endif
+
+#ifndef FLT64_TRUE_MIN
+# error "FLT64_TRUE_MIN undefined"
+#endif
+
+#if FLT64_DECIMAL_DIG > DECIMAL_DIG
+# error "FLT64_DECIMAL_DIG > DECIMAL_DIG"
+#endif
+
+#if FLT64_MANT_DIG != 53 || FLT64_MAX_EXP != 1024 || FLT64_MIN_EXP != -1021
+# error "_Float64 bad format"
+#endif

diff --git a/gcc/testsuite/gcc.dg/torture/float64-tg.c b/gcc/testsuite/gcc.dg/torture/float64-tg.c
new file mode 100644 (file)
index 0000000..c970d53
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float64-tg.c
@@ -0,0 +1,9 @@
+/* Test _Float64 type-generic built-in functions.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64 } */
+/* { dg-require-effective-target float64_runtime } */
+
+#define WIDTH 64
+#define EXT 0
+#include "floatn-tg.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float64x-basic.c b/gcc/testsuite/gcc.dg/torture/float64x-basic.c
new file mode 100644 (file)
index 0000000..7a140af
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float64x-basic.c
@@ -0,0 +1,9 @@
+/* Test _Float64x.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64x } */
+/* { dg-require-effective-target float64x_runtime } */
+
+#define WIDTH 64
+#define EXT 1
+#include "floatn-basic.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float64x-complex.c b/gcc/testsuite/gcc.dg/torture/float64x-complex.c
new file mode 100644 (file)
index 0000000..cb573be
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float64x-complex.c
@@ -0,0 +1,9 @@
+/* Test _Float64x complex arithmetic.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64x } */
+/* { dg-require-effective-target float64x_runtime } */
+
+#define WIDTH 64
+#define EXT 1
+#include "floatn-complex.h"

diff --git a/gcc/testsuite/gcc.dg/torture/float64x-floath.c b/gcc/testsuite/gcc.dg/torture/float64x-floath.c
new file mode 100644 (file)
index 0000000..11eddc7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float64x-floath.c
@@ -0,0 +1,61 @@
+/* Test _Float64x <float.h> macros.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64x } */
+/* { dg-require-effective-target float64x_runtime } */
+
+#define WIDTH 64
+#define EXT 1
+#include "floatn-floath.h"
+
+#ifndef FLT64X_MANT_DIG
+# error "FLT64X_MANT_DIG undefined"
+#endif
+
+#ifndef FLT64X_DECIMAL_DIG
+# error "FLT64X_DECIMAL_DIG undefined"
+#endif
+
+#ifndef FLT64X_DIG
+# error "FLT64X_DIG undefined"
+#endif
+
+#ifndef FLT64X_MIN_EXP
+# error "FLT64X_MIN_EXP undefined"
+#endif
+
+#ifndef FLT64X_MIN_10_EXP
+# error "FLT64X_MIN_10_EXP undefined"
+#endif
+
+#ifndef FLT64X_MAX_EXP
+# error "FLT64X_MAX_EXP undefined"
+#endif
+
+#ifndef FLT64X_MAX_10_EXP
+# error "FLT64X_MAX_10_EXP undefined"
+#endif
+
+#ifndef FLT64X_MAX
+# error "FLT64X_MAX undefined"
+#endif
+
+#ifndef FLT64X_EPSILON
+# error "FLT64X_EPSILON undefined"
+#endif
+
+#ifndef FLT64X_MIN
+# error "FLT64X_MIN undefined"
+#endif
+
+#ifndef FLT64X_TRUE_MIN
+# error "FLT64X_TRUE_MIN undefined"
+#endif
+
+#if FLT64X_DECIMAL_DIG > DECIMAL_DIG
+# error "FLT64X_DECIMAL_DIG > DECIMAL_DIG"
+#endif
+
+#if FLT64X_MANT_DIG < 64 || FLT64X_MAX_EXP < 16384 || FLT64X_MIN_EXP + FLT64X_MAX_EXP != 3
+# error "_Float64x bad format"
+#endif

diff --git a/gcc/testsuite/gcc.dg/torture/float64x-tg.c b/gcc/testsuite/gcc.dg/torture/float64x-tg.c
new file mode 100644 (file)
index 0000000..ac14675
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/float64x-tg.c
@@ -0,0 +1,9 @@
+/* Test _Float64x type-generic built-in functions.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64x } */
+/* { dg-require-effective-target float64x_runtime } */
+
+#define WIDTH 64
+#define EXT 1
+#include "floatn-tg.h"

diff --git a/gcc/testsuite/gcc.dg/torture/floatn-basic.h b/gcc/testsuite/gcc.dg/torture/floatn-basic.h
new file mode 100644 (file)
index 0000000..9131f46
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/floatn-basic.h
@@ -0,0 +1,141 @@
+/* Basic tests for _FloatN / _FloatNx types: compile and execution
+   tests for valid code.  Before including this file, define WIDTH as
+   the value N; define EXT to 1 for _FloatNx and 0 for _FloatN.  */
+
+#include <stdarg.h>
+
+#define CONCATX(X, Y) X ## Y
+#define CONCAT(X, Y) CONCATX (X, Y)
+#define CONCAT3(X, Y, Z) CONCAT (CONCAT (X, Y), Z)
+#define CONCAT4(W, X, Y, Z) CONCAT (CONCAT (CONCAT (W, X), Y), Z)
+
+#if EXT
+# define TYPE CONCAT3 (_Float, WIDTH, x)
+# define CST(C) CONCAT4 (C, f, WIDTH, x)
+# define CSTU(C) CONCAT4 (C, F, WIDTH, x)
+#else
+# define TYPE CONCAT (_Float, WIDTH)
+# define CST(C) CONCAT3 (C, f, WIDTH)
+# define CSTU(C) CONCAT3 (C, F, WIDTH)
+#endif
+
+extern void exit (int);
+extern void abort (void);
+
+volatile TYPE a = CST (1.0), b = CSTU (2.5), c = -CST (2.5);
+volatile TYPE a2 = CST (1.0), z = CST (0.0), nz = -CST (0.0);
+
+/* These types are not subject to default argument promotions.  */
+
+TYPE
+vafn (TYPE arg1, ...)
+{
+  va_list ap;
+  TYPE ret;
+  va_start (ap, arg1);
+  ret = arg1 + va_arg (ap, TYPE);
+  va_end (ap);
+  return ret;
+}
+
+TYPE
+krfn (arg)
+     TYPE arg;
+{
+  return arg + 1;
+}
+
+TYPE krprofn (TYPE);
+TYPE
+krprofn (arg)
+     TYPE arg;
+{
+  return arg * 3;
+}
+
+TYPE
+profn (TYPE arg)
+{
+  return arg / 4;
+}
+
+int
+main (void)
+{
+  volatile TYPE r;
+  r = -b;
+  if (r != c)
+    abort ();
+  r = a + b;
+  if (r != CST (3.5))
+    abort ();
+  r = a - b;
+  if (r != -CST (1.5))
+    abort ();
+  r = 2 * c;
+  if (r != -5)
+    abort ();
+  r = b * c;
+  if (r != -CST (6.25))
+    abort ();
+  r = b / (a + a);
+  if (r != CST (1.25))
+    abort ();
+  r = c * 3;
+  if (r != -CST (7.5))
+    abort ();
+  volatile int i = r;
+  if (i != -7)
+    abort ();
+  r = vafn (a, c);
+  if (r != -CST (1.5))
+    abort ();
+  r = krfn (b);
+  if (r != CST (3.5))
+    abort ();
+  r = krprofn (a);
+  if (r != CST (3.0))
+    abort ();
+  r = profn (a);
+  if (r != CST (0.25))
+    abort ();
+  if ((a < b) != 1)
+    abort ();
+  if ((b < a) != 0)
+    abort ();
+  if ((a < a2) != 0)
+    abort ();
+  if ((nz < z) != 0)
+    abort ();
+  if ((a <= b) != 1)
+    abort ();
+  if ((b <= a) != 0)
+    abort ();
+  if ((a <= a2) != 1)
+    abort ();
+  if ((nz <= z) != 1)
+    abort ();
+  if ((a > b) != 0)
+    abort ();
+  if ((b > a) != 1)
+    abort ();
+  if ((a > a2) != 0)
+    abort ();
+  if ((nz > z) != 0)
+    abort ();
+  if ((a >= b) != 0)
+    abort ();
+  if ((b >= a) != 1)
+    abort ();
+  if ((a >= a2) != 1)
+    abort ();
+  if ((nz >= z) != 1)
+    abort ();
+  i = (nz == z);
+  if (i != 1)
+    abort ();
+  i = (a == b);
+  if (i != 0)
+    abort ();
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/floatn-complex.h b/gcc/testsuite/gcc.dg/torture/floatn-complex.h
new file mode 100644 (file)
index 0000000..7e32faf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/floatn-complex.h
@@ -0,0 +1,76 @@
+/* Tests for _FloatN / _FloatNx types: compile and execution tests for
+   valid code with complex arithmetic.  Before including this file,
+   define WIDTH as the value N; define EXT to 1 for _FloatNx and 0 for
+   _FloatN.  */
+
+#define CONCATX(X, Y) X ## Y
+#define CONCAT(X, Y) CONCATX (X, Y)
+#define CONCAT3(X, Y, Z) CONCAT (CONCAT (X, Y), Z)
+#define CONCAT4(W, X, Y, Z) CONCAT (CONCAT (CONCAT (W, X), Y), Z)
+
+#if EXT
+# define TYPE CONCAT3 (_Float, WIDTH, x)
+# define CST(C) CONCAT4 (C, f, WIDTH, x)
+# define CSTI(C) CONCAT4 (C, if, WIDTH, x)
+# define CSTI2(C) CONCAT4 (C, F, WIDTH, xi)
+#else
+# define TYPE CONCAT (_Float, WIDTH)
+# define CST(C) CONCAT3 (C, f, WIDTH)
+# define CSTI(C) CONCAT3 (C, if, WIDTH)
+# define CSTI2(C) CONCAT4 (C, F, WIDTH, i)
+#endif
+
+extern void exit (int);
+extern void abort (void);
+
+volatile TYPE a = CST (1.0);
+volatile _Complex TYPE b = CST (2.0) + CSTI (3.0);
+volatile _Complex TYPE c = CST (2.0) + CSTI2 (3.0);
+volatile _Complex TYPE d = __builtin_complex (CST (2.0), CST (3.0));
+
+_Complex TYPE
+fn (_Complex TYPE arg)
+{
+  return arg / 4;
+}
+
+int
+main (void)
+{
+  volatile _Complex TYPE r;
+  if (b != c)
+    abort ();
+  if (b != d)
+    abort ();
+  r = a + b;
+  if (__real__ r != CST (3.0) || __imag__ r != CST (3.0))
+    abort ();
+  r += d;
+  if (__real__ r != CST (5.0) || __imag__ r != CST (6.0))
+    abort ();
+  r -= a;
+  if (__real__ r != CST (4.0) || __imag__ r != CST (6.0))
+    abort ();
+  r /= (a + a);
+  if (__real__ r != CST (2.0) || __imag__ r != CST (3.0))
+    abort ();
+  r *= (a + a);
+  if (__real__ r != CST (4.0) || __imag__ r != CST (6.0))
+    abort ();
+  r -= b;
+  if (__real__ r != CST (2.0) || __imag__ r != CST (3.0))
+    abort ();
+  r *= r;
+  if (__real__ r != -CST (5.0) || __imag__ r != CST (12.0))
+    abort ();
+  /* Division may not be exact, so round result before comparing.  */
+  r /= b;
+  r += __builtin_complex (CST (100.0), CST (100.0));
+  r -= __builtin_complex (CST (100.0), CST (100.0));
+  if (r != b)
+    abort ();
+  r = fn (r);
+  if (__real__ r != CST (0.5) || __imag__ r != CST (0.75))
+    abort ();
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/floatn-convert.c b/gcc/testsuite/gcc.dg/torture/floatn-convert.c
new file mode 100644 (file)
index 0000000..741ffc8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/floatn-convert.c
@@ -0,0 +1,104 @@
+/* Tests for _FloatN / _FloatNx types: test conversions.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float16 } */
+/* { dg-add-options float32 } */
+/* { dg-add-options float64 } */
+/* { dg-add-options float128 } */
+/* { dg-add-options float32x } */
+/* { dg-add-options float64x } */
+/* { dg-add-options float128x } */
+/* { dg-require-effective-target float32 } */
+/* { dg-require-effective-target floatn_nx_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+
+#ifndef FLT16_MAX
+# define _Float16 _Float32
+# define FLT16_MAX FLT32_MAX
+# define FLT16_MANT_DIG FLT32_MANT_DIG
+# define FLT16_EPSILON FLT32_EPSILON
+#endif
+
+#ifndef FLT64_MAX
+# define _Float64 _Float32
+# define FLT64_MAX FLT32_MAX
+# define FLT64_MANT_DIG FLT32_MANT_DIG
+# define FLT64_EPSILON FLT32_EPSILON
+#endif
+
+#ifndef FLT128_MAX
+# define _Float128 _Float32
+# define FLT128_MAX FLT32_MAX
+# define FLT128_MANT_DIG FLT32_MANT_DIG
+# define FLT128_EPSILON FLT32_EPSILON
+#endif
+
+#ifndef FLT32X_MAX
+# define _Float32x _Float32
+# define FLT32X_MAX FLT32_MAX
+# define FLT32X_MANT_DIG FLT32_MANT_DIG
+# define FLT32X_EPSILON FLT32_EPSILON
+#endif
+
+#ifndef FLT64X_MAX
+# define _Float64x _Float32
+# define FLT64X_MAX FLT32_MAX
+# define FLT64X_MANT_DIG FLT32_MANT_DIG
+# define FLT64X_EPSILON FLT32_EPSILON
+#endif
+
+#ifndef FLT128X_MAX
+# define _Float128x _Float32
+# define FLT128X_MAX FLT32_MAX
+# define FLT128X_MANT_DIG FLT32_MANT_DIG
+# define FLT128X_EPSILON FLT32_EPSILON
+#endif
+
+#define CONCATX(X, Y) X ## Y
+#define CONCAT(X, Y) CONCATX (X, Y)
+
+extern void exit (int);
+extern void abort (void);
+
+#define DO_TEST(TYPE1, PFX1, TYPE2, PFX2)                      \
+  do                                                           \
+    {                                                          \
+      volatile TYPE1 a = (TYPE1) 1 + CONCAT (PFX1, _EPSILON);  \
+      volatile TYPE2 b = (TYPE2) a;                            \
+      volatile TYPE2 expected;                                 \
+      if (CONCAT (PFX2, _MANT_DIG) < CONCAT (PFX1, _MANT_DIG)) \
+       expected = (TYPE2) 1;                                   \
+      else                                                     \
+       expected = (TYPE2) 1 + (TYPE2) CONCAT (PFX1, _EPSILON); \
+      if (b != expected)                                       \
+       abort ();                                               \
+    }                                                          \
+  while (0)
+
+#define DO_TEST1(TYPE1, PFX1)                          \
+  do                                                   \
+    {                                                  \
+      DO_TEST (TYPE1, PFX1, _Float16, FLT16);          \
+      DO_TEST (TYPE1, PFX1, _Float32, FLT32);          \
+      DO_TEST (TYPE1, PFX1, _Float64, FLT64);          \
+      DO_TEST (TYPE1, PFX1, _Float128, FLT128);                \
+      DO_TEST (TYPE1, PFX1, _Float32x, FLT32X);                \
+      DO_TEST (TYPE1, PFX1, _Float64x, FLT64X);                \
+      DO_TEST (TYPE1, PFX1, _Float128x, FLT128X);      \
+    }                                                  \
+  while (0)
+
+int
+main (void)
+{
+  DO_TEST1 (_Float16, FLT16);
+  DO_TEST1 (_Float32, FLT32);
+  DO_TEST1 (_Float64, FLT64);
+  DO_TEST1 (_Float128, FLT128);
+  DO_TEST1 (_Float32x, FLT32X);
+  DO_TEST1 (_Float64x, FLT64X);
+  DO_TEST1 (_Float128x, FLT128X);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/floatn-floath.h b/gcc/testsuite/gcc.dg/torture/floatn-floath.h
new file mode 100644 (file)
index 0000000..a09b59e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/floatn-floath.h
@@ -0,0 +1,52 @@
+/* Tests for _FloatN / _FloatNx types: compile and execution tests for
+   <float.h>.  Before including this file, define WIDTH as the value
+   N; define EXT to 1 for _FloatNx and 0 for _FloatN.  */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+
+#define CONCATX(X, Y) X ## Y
+#define CONCAT(X, Y) CONCATX (X, Y)
+#define CONCAT3(X, Y, Z) CONCAT (CONCAT (X, Y), Z)
+#define CONCAT4(W, X, Y, Z) CONCAT (CONCAT (CONCAT (W, X), Y), Z)
+
+#if EXT
+# define TYPE CONCAT3 (_Float, WIDTH, x)
+# define CST(C) CONCAT4 (C, f, WIDTH, x)
+# define FMAC(M) CONCAT4 (FLT, WIDTH, X_, M)
+#else
+# define TYPE CONCAT (_Float, WIDTH)
+# define CST(C) CONCAT3 (C, f, WIDTH)
+# define FMAC(M) CONCAT4 (FLT, WIDTH, _, M)
+#endif
+
+extern void exit (int);
+extern void abort (void);
+
+int
+main (void)
+{
+  volatile TYPE a = CST (1.0);
+  for (int i = 0; i >= FMAC (MIN_EXP); i--)
+    a *= CST (0.5);
+  if (a != FMAC (MIN))
+    abort ();
+  for (int i = 0; i < FMAC (MANT_DIG) - 1; i++)
+    a *= CST (0.5);
+  if (a != FMAC (TRUE_MIN))
+    abort ();
+  a *= CST (0.5);
+  if (a != CST (0.0))
+    abort ();
+  a = FMAC (EPSILON);
+  for (int i = 0; i < FMAC (MANT_DIG) - 1; i++)
+    a *= CST (2.0);
+  if (a != CST (1.0))
+    abort ();
+  a = FMAC (MAX);
+  for (int i = 0; i < FMAC (MAX_EXP); i++)
+    a *= CST (0.5);
+  if (a != CST (1.0) - FMAC (EPSILON) * CST (0.5))
+    abort ();
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/floatn-tg.h b/gcc/testsuite/gcc.dg/torture/floatn-tg.h
new file mode 100644 (file)
index 0000000..8222297
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/floatn-tg.h
@@ -0,0 +1,113 @@
+/* Tests for _FloatN / _FloatNx types: compile and execution tests for
+   type-generic built-in functions.  Before including this file,
+   define WIDTH as the value N; define EXT to 1 for _FloatNx and 0 for
+   _FloatN.  */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+
+#define CONCATX(X, Y) X ## Y
+#define CONCAT(X, Y) CONCATX (X, Y)
+#define CONCAT3(X, Y, Z) CONCAT (CONCAT (X, Y), Z)
+#define CONCAT4(W, X, Y, Z) CONCAT (CONCAT (CONCAT (W, X), Y), Z)
+
+#if EXT
+# define TYPE CONCAT3 (_Float, WIDTH, x)
+# define CST(C) CONCAT4 (C, f, WIDTH, x)
+# define TRUE_MIN CONCAT3 (FLT, WIDTH, X_TRUE_MIN)
+#else
+# define TYPE CONCAT (_Float, WIDTH)
+# define CST(C) CONCAT3 (C, f, WIDTH)
+# define TRUE_MIN CONCAT3 (FLT, WIDTH, _TRUE_MIN)
+#endif
+
+extern void exit (int);
+extern void abort (void);
+
+volatile TYPE inf = __builtin_inf (), nanval = __builtin_nan ("");
+volatile TYPE zero = CST (0.0), negzero = -CST (0.0), one = CST (1.0);
+volatile TYPE true_min = TRUE_MIN;
+
+int
+main (void)
+{
+  if (__builtin_signbit (inf) != 0)
+    abort ();
+  if (__builtin_signbit (zero) != 0)
+    abort ();
+  if (__builtin_signbit (negzero) == 0)
+    abort ();
+  if (__builtin_isfinite (nanval) != 0)
+    abort ();
+  if (__builtin_isfinite (inf) != 0)
+    abort ();
+  if (__builtin_isfinite (one) == 0)
+    abort ();
+  if (__builtin_isinf (nanval) != 0)
+    abort ();
+  if (__builtin_isinf (inf) == 0)
+    abort ();
+  if (__builtin_isnan (nanval) == 0)
+    abort ();
+  if (__builtin_isnan (inf) != 0)
+    abort ();
+  if (__builtin_isnormal (inf) != 0)
+    abort ();
+  if (__builtin_isnormal (one) == 0)
+    abort ();
+  if (__builtin_isnormal (nanval) != 0)
+    abort ();
+  if (__builtin_isnormal (zero) != 0)
+    abort ();
+  if (__builtin_isnormal (true_min) != 0)
+    abort ();
+  if (__builtin_islessequal (zero, one) != 1)
+    abort ();
+  if (__builtin_islessequal (one, zero) != 0)
+    abort ();
+  if (__builtin_islessequal (zero, negzero) != 1)
+    abort ();
+  if (__builtin_islessequal (zero, nanval) != 0)
+    abort ();
+  if (__builtin_isless (zero, one) != 1)
+    abort ();
+  if (__builtin_isless (one, zero) != 0)
+    abort ();
+  if (__builtin_isless (zero, negzero) != 0)
+    abort ();
+  if (__builtin_isless (zero, nanval) != 0)
+    abort ();
+  if (__builtin_isgreaterequal (zero, one) != 0)
+    abort ();
+  if (__builtin_isgreaterequal (one, zero) != 1)
+    abort ();
+  if (__builtin_isgreaterequal (zero, negzero) != 1)
+    abort ();
+  if (__builtin_isgreaterequal (zero, nanval) != 0)
+    abort ();
+  if (__builtin_isgreater (zero, one) != 0)
+    abort ();
+  if (__builtin_isgreater (one, zero) != 1)
+    abort ();
+  if (__builtin_isgreater (zero, negzero) != 0)
+    abort ();
+  if (__builtin_isgreater (zero, nanval) != 0)
+    abort ();
+  if (__builtin_islessgreater (zero, one) != 1)
+    abort ();
+  if (__builtin_islessgreater (one, zero) != 1)
+    abort ();
+  if (__builtin_islessgreater (zero, negzero) != 0)
+    abort ();
+  if (__builtin_islessgreater (zero, nanval) != 0)
+    abort ();
+  if (__builtin_isunordered (zero, one) != 0)
+    abort ();
+  if (__builtin_isunordered (one, zero) != 0)
+    abort ();
+  if (__builtin_isunordered (zero, negzero) != 0)
+    abort ();
+  if (__builtin_isunordered (zero, nanval) != 1)
+    abort ();
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-double.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-double.c
index 39ec3cde1104988e82b69d493756d9fae8ae7223..f2446d7fd5a5eac0c3f984893214fa6a4cd3bb8a 100644 (file)
--- a/gcc/testsuite/gcc.dg/torture/fp-int-convert-double.c
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-double.c
@@ -9,10 +9,10 @@
 int
 main (void)
 {
-  TEST_I_F(signed char, unsigned char, double, DBL_MANT_DIG);
-  TEST_I_F(signed short, unsigned short, double, DBL_MANT_DIG);
-  TEST_I_F(signed int, unsigned int, double, DBL_MANT_DIG);
-  TEST_I_F(signed long, unsigned long, double, DBL_MANT_DIG);
-  TEST_I_F(signed long long, unsigned long long, double, DBL_MANT_DIG);
+  TEST_I_F(signed char, unsigned char, double, DBL_MANT_DIG, DBL_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, double, DBL_MANT_DIG, DBL_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, double, DBL_MANT_DIG, DBL_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, double, DBL_MANT_DIG, DBL_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, double, DBL_MANT_DIG, DBL_MAX_EXP);
   exit (0);
 }

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float.c
index 7fca1df7adf2479b55093c9b579a738410fa0a2a..f0f371bcbc1a7664cee3001ccdbeff25bbada90c 100644 (file)
--- a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float.c
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float.c
@@ -9,10 +9,10 @@
 int
 main (void)
 {
-  TEST_I_F(signed char, unsigned char, float, FLT_MANT_DIG);
-  TEST_I_F(signed short, unsigned short, float, FLT_MANT_DIG);
-  TEST_I_F(signed int, unsigned int, float, FLT_MANT_DIG);
-  TEST_I_F(signed long, unsigned long, float, FLT_MANT_DIG);
-  TEST_I_F(signed long long, unsigned long long, float, FLT_MANT_DIG);
+  TEST_I_F(signed char, unsigned char, float, FLT_MANT_DIG, FLT_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, float, FLT_MANT_DIG, FLT_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, float, FLT_MANT_DIG, FLT_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, float, FLT_MANT_DIG, FLT_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, float, FLT_MANT_DIG, FLT_MAX_EXP);
   exit (0);
 }

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-ieee-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-ieee-timode.c
new file mode 100644 (file)
index 0000000..59a7a8c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-ieee-timode.c
@@ -0,0 +1,16 @@
+/* Test floating-point conversions.  _Float128 type with TImode.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128 } */
+/* { dg-require-effective-target float128_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(TItype, UTItype, _Float128, FLT128_MANT_DIG, FLT128_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-ieee.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-ieee.c
new file mode 100644 (file)
index 0000000..e1aeab0
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-ieee.c
@@ -0,0 +1,20 @@
+/* Test floating-point conversions.  Standard types and _Float128.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128 } */
+/* { dg-require-effective-target float128_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(signed char, unsigned char, _Float128, FLT128_MANT_DIG, FLT128_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, _Float128, FLT128_MANT_DIG, FLT128_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, _Float128, FLT128_MANT_DIG, FLT128_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, _Float128, FLT128_MANT_DIG, FLT128_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, _Float128, FLT128_MANT_DIG, FLT128_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-timode.c
index 493dee892b076e4b5e34dff9da0d065fcf30c5c5..ddeef869581b416700324460c8a606ded46f732a 100644 (file)
--- a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-timode.c
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-timode.c
@@ -9,10 +9,11 @@
 #include "fp-int-convert.h"
 
 #define FLOAT128_MANT_DIG 113
+#define FLOAT128_MAX_EXP 16384
 
 int
 main (void)
 {
-  TEST_I_F(TItype, UTItype, __float128, FLOAT128_MANT_DIG);
+  TEST_I_F(TItype, UTItype, __float128, FLOAT128_MANT_DIG, FLOAT128_MAX_EXP);
   exit (0);
 }

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128.c
index bc5e5adebc13eab77806f887c51c25028cfeec96..4adff79078dbdd4725dee87d7a04b403720b2006 100644 (file)
--- a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128.c
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128.c
@@ -6,14 +6,15 @@
 #include "fp-int-convert.h"
 
 #define FLOAT128_MANT_DIG 113
+#define FLOAT128_MAX_EXP 16384
 
 int
 main (void)
 {
-  TEST_I_F(signed char, unsigned char, __float128, FLOAT128_MANT_DIG);
-  TEST_I_F(signed short, unsigned short, __float128, FLOAT128_MANT_DIG);
-  TEST_I_F(signed int, unsigned int, __float128, FLOAT128_MANT_DIG);
-  TEST_I_F(signed long, unsigned long, __float128, FLOAT128_MANT_DIG);
-  TEST_I_F(signed long long, unsigned long long, __float128, FLOAT128_MANT_DIG);
+  TEST_I_F(signed char, unsigned char, __float128, FLOAT128_MANT_DIG, FLOAT128_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, __float128, FLOAT128_MANT_DIG, FLOAT128_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, __float128, FLOAT128_MANT_DIG, FLOAT128_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, __float128, FLOAT128_MANT_DIG, FLOAT128_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, __float128, FLOAT128_MANT_DIG, FLOAT128_MAX_EXP);
   exit (0);
 }

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128x-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128x-timode.c
new file mode 100644 (file)
index 0000000..682dcdc
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128x-timode.c
@@ -0,0 +1,16 @@
+/* Test floating-point conversions.  _Float128x type with TImode.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128x } */
+/* { dg-require-effective-target float128x_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(TItype, UTItype, _Float128, FLT128X_MANT_DIG, FLT128X_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128x.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128x.c
new file mode 100644 (file)
index 0000000..a09ed5d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float128x.c
@@ -0,0 +1,20 @@
+/* Test floating-point conversions.  Standard types and _Float128x.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float128x } */
+/* { dg-require-effective-target float128x_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(signed char, unsigned char, _Float128x, FLT128X_MANT_DIG, FLT128X_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, _Float128x, FLT128X_MANT_DIG, FLT128X_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, _Float128x, FLT128X_MANT_DIG, FLT128X_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, _Float128x, FLT128X_MANT_DIG, FLT128X_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, _Float128x, FLT128X_MANT_DIG, FLT128X_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float16-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float16-timode.c
new file mode 100644 (file)
index 0000000..f64f1d2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float16-timode.c
@@ -0,0 +1,16 @@
+/* Test floating-point conversions.  _Float16 type with TImode.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float16 } */
+/* { dg-require-effective-target float16_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(TItype, UTItype, _Float16, FLT16_MANT_DIG, FLT16_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float16.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float16.c
new file mode 100644 (file)
index 0000000..92e976f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float16.c
@@ -0,0 +1,20 @@
+/* Test floating-point conversions.  Standard types and _Float16.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float16 } */
+/* { dg-require-effective-target float16_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(signed char, unsigned char, _Float16, FLT16_MANT_DIG, FLT16_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, _Float16, FLT16_MANT_DIG, FLT16_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, _Float16, FLT16_MANT_DIG, FLT16_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, _Float16, FLT16_MANT_DIG, FLT16_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, _Float16, FLT16_MANT_DIG, FLT16_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32-timode.c
new file mode 100644 (file)
index 0000000..c248497
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32-timode.c
@@ -0,0 +1,16 @@
+/* Test floating-point conversions.  _Float32 type with TImode.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-require-effective-target float32_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(TItype, UTItype, _Float32, FLT32_MANT_DIG, FLT32_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32.c
new file mode 100644 (file)
index 0000000..09847d8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32.c
@@ -0,0 +1,20 @@
+/* Test floating-point conversions.  Standard types and _Float32.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32 } */
+/* { dg-require-effective-target float32_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(signed char, unsigned char, _Float32, FLT32_MANT_DIG, FLT32_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, _Float32, FLT32_MANT_DIG, FLT32_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, _Float32, FLT32_MANT_DIG, FLT32_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, _Float32, FLT32_MANT_DIG, FLT32_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, _Float32, FLT32_MANT_DIG, FLT32_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32x-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32x-timode.c
new file mode 100644 (file)
index 0000000..f08bd00
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32x-timode.c
@@ -0,0 +1,16 @@
+/* Test floating-point conversions.  _Float32x type with TImode.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32x_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(TItype, UTItype, _Float32, FLT32X_MANT_DIG, FLT32X_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32x.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32x.c
new file mode 100644 (file)
index 0000000..8ea2eaf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float32x.c
@@ -0,0 +1,20 @@
+/* Test floating-point conversions.  Standard types and _Float32x.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float32x } */
+/* { dg-require-effective-target float32x_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(signed char, unsigned char, _Float32x, FLT32X_MANT_DIG, FLT32X_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, _Float32x, FLT32X_MANT_DIG, FLT32X_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, _Float32x, FLT32X_MANT_DIG, FLT32X_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, _Float32x, FLT32X_MANT_DIG, FLT32X_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, _Float32x, FLT32X_MANT_DIG, FLT32X_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64-timode.c
new file mode 100644 (file)
index 0000000..ecefa81
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64-timode.c
@@ -0,0 +1,16 @@
+/* Test floating-point conversions.  _Float64 type with TImode.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64 } */
+/* { dg-require-effective-target float64_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(TItype, UTItype, _Float64, FLT64_MANT_DIG, FLT64_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64.c
new file mode 100644 (file)
index 0000000..196d611
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64.c
@@ -0,0 +1,20 @@
+/* Test floating-point conversions.  Standard types and _Float64.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64 } */
+/* { dg-require-effective-target float64_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(signed char, unsigned char, _Float64, FLT64_MANT_DIG, FLT64_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, _Float64, FLT64_MANT_DIG, FLT64_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, _Float64, FLT64_MANT_DIG, FLT64_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, _Float64, FLT64_MANT_DIG, FLT64_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, _Float64, FLT64_MANT_DIG, FLT64_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64x-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64x-timode.c
new file mode 100644 (file)
index 0000000..7b06a80
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64x-timode.c
@@ -0,0 +1,16 @@
+/* Test floating-point conversions.  _Float64x type with TImode.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64x } */
+/* { dg-require-effective-target float64x_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(TItype, UTItype, _Float64, FLT64X_MANT_DIG, FLT64X_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64x.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64x.c
new file mode 100644 (file)
index 0000000..e103a5e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float64x.c
@@ -0,0 +1,20 @@
+/* Test floating-point conversions.  Standard types and _Float64x.  */
+/* { dg-do run } */
+/* { dg-options "" } */
+/* { dg-add-options float64x } */
+/* { dg-require-effective-target float64x_runtime } */
+
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+#include "fp-int-convert.h"
+
+int
+main (void)
+{
+  TEST_I_F(signed char, unsigned char, _Float64x, FLT64X_MANT_DIG, FLT64X_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, _Float64x, FLT64X_MANT_DIG, FLT64X_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, _Float64x, FLT64X_MANT_DIG, FLT64X_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, _Float64x, FLT64X_MANT_DIG, FLT64X_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, _Float64x, FLT64X_MANT_DIG, FLT64X_MAX_EXP);
+  exit (0);
+}

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float80-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float80-timode.c
index 7600994b4bd8484f32dfdeb977dd140f9230cdfe..9c94438b56e1d11eb136f297105197aff4da4bbe 100644 (file)
--- a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float80-timode.c
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float80-timode.c
@@ -7,10 +7,11 @@
 #include "fp-int-convert.h"
 
 #define FLOAT80_MANT_DIG 64
+#define FLOAT80_MAX_EXP 16384
 
 int
 main (void)
 {
-  TEST_I_F(TItype, UTItype, __float80, FLOAT80_MANT_DIG);
+  TEST_I_F(TItype, UTItype, __float80, FLOAT80_MANT_DIG, FLOAT80_MAX_EXP);
   exit (0);
 }

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float80.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float80.c
index 3e25f904dbe7989d7e8f05c9d88769600cd51fb3..e545613beed094f3dd0ca5870e659511d0f04398 100644 (file)
--- a/gcc/testsuite/gcc.dg/torture/fp-int-convert-float80.c
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-float80.c
@@ -6,14 +6,15 @@
 #include "fp-int-convert.h"
 
 #define FLOAT80_MANT_DIG 64
+#define FLOAT80_MAX_EXP 16384
 
 int
 main (void)
 {
-  TEST_I_F(signed char, unsigned char, __float80, FLOAT80_MANT_DIG);
-  TEST_I_F(signed short, unsigned short, __float80, FLOAT80_MANT_DIG);
-  TEST_I_F(signed int, unsigned int, __float80, FLOAT80_MANT_DIG);
-  TEST_I_F(signed long, unsigned long, __float80, FLOAT80_MANT_DIG);
-  TEST_I_F(signed long long, unsigned long long, __float80, FLOAT80_MANT_DIG);
+  TEST_I_F(signed char, unsigned char, __float80, FLOAT80_MANT_DIG, FLOAT80_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, __float80, FLOAT80_MANT_DIG, FLOAT80_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, __float80, FLOAT80_MANT_DIG, FLOAT80_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, __float80, FLOAT80_MANT_DIG, FLOAT80_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, __float80, FLOAT80_MANT_DIG, FLOAT80_MAX_EXP);
   exit (0);
 }

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-long-double.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-long-double.c
index bb189a34c323e6554b8eca99435a38a39c3eee05..d8e5197f1d390a4a46b807c8de6499b29d031640 100644 (file)
--- a/gcc/testsuite/gcc.dg/torture/fp-int-convert-long-double.c
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-long-double.c
@@ -9,10 +9,10 @@
 int
 main (void)
 {
-  TEST_I_F(signed char, unsigned char, long double, LDBL_MANT_DIG);
-  TEST_I_F(signed short, unsigned short, long double, LDBL_MANT_DIG);
-  TEST_I_F(signed int, unsigned int, long double, LDBL_MANT_DIG);
-  TEST_I_F(signed long, unsigned long, long double, LDBL_MANT_DIG);
-  TEST_I_F(signed long long, unsigned long long, long double, LDBL_MANT_DIG);
+  TEST_I_F(signed char, unsigned char, long double, LDBL_MANT_DIG, LDBL_MAX_EXP);
+  TEST_I_F(signed short, unsigned short, long double, LDBL_MANT_DIG, LDBL_MAX_EXP);
+  TEST_I_F(signed int, unsigned int, long double, LDBL_MANT_DIG, LDBL_MAX_EXP);
+  TEST_I_F(signed long, unsigned long, long double, LDBL_MANT_DIG, LDBL_MAX_EXP);
+  TEST_I_F(signed long long, unsigned long long, long double, LDBL_MANT_DIG, LDBL_MAX_EXP);
   exit (0);
 }

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert-timode.c b/gcc/testsuite/gcc.dg/torture/fp-int-convert-timode.c
index 3a60d01ffa5f0ebd516d828a6b270aef2a278580..0ef3e5454656441eb3275a520ce9ca84ba8248a3 100644 (file)
--- a/gcc/testsuite/gcc.dg/torture/fp-int-convert-timode.c
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert-timode.c
@@ -9,13 +9,13 @@
 int
 main (void)
 {
-  TEST_I_F(TItype, UTItype, float, FLT_MANT_DIG);
-  TEST_I_F(TItype, UTItype, double, DBL_MANT_DIG);
+  TEST_I_F(TItype, UTItype, float, FLT_MANT_DIG, FLT_MAX_EXP);
+  TEST_I_F(TItype, UTItype, double, DBL_MANT_DIG, DBL_MAX_EXP);
   /* Disable the long double tests when using IBM Extended Doubles.
      They have variable precision, but constants calculated by gcc's
      real.c assume fixed precision.  */
 #if DBL_MANT_DIG != LDBL_MANT_DIG  && LDBL_MANT_DIG != 106
-  TEST_I_F(TItype, UTItype, long double, LDBL_MANT_DIG);
+  TEST_I_F(TItype, UTItype, long double, LDBL_MANT_DIG, LDBL_MAX_EXP);
 #endif
   exit (0);
 }

diff --git a/gcc/testsuite/gcc.dg/torture/fp-int-convert.h b/gcc/testsuite/gcc.dg/torture/fp-int-convert.h
index 8ac9c3de1ac945f7ff35a63ade19686610f7ba9e..59773e34fa851791b1fc84e4cb444b5684450a14 100644 (file)
--- a/gcc/testsuite/gcc.dg/torture/fp-int-convert.h
+++ b/gcc/testsuite/gcc.dg/torture/fp-int-convert.h
@@ -15,20 +15,21 @@ typedef long TItype;
 typedef unsigned long UTItype;
 #endif
 
-/* TEST_I_F(I, U, F, P) tests conversions between the pair of signed
-   and unsigned integer types I and U and the floating-point type F,
-   where P is the binary precision of the floating point type.  We
-   test conversions of the values 0, 1, 0x7...f, 0x8...0, 0xf...f.  We
-   also test conversions of values half way between two
-   representable values (rounding both ways), just above half way, and
-   just below half way.  */
-#define TEST_I_F(I, U, F, P)                                   \
+/* TEST_I_F(I, U, F, P, M) tests conversions between the pair of
+   signed and unsigned integer types I and U and the floating-point
+   type F, where P is the binary precision of the floating point type
+   and M is the MAX_EXP value for that type (so 2^M overflows, 2^(M-1)
+   does not).  We test conversions of the values 0, 1, 0x7...f,
+   0x8...0, 0xf...f.  We also test conversions of values half way
+   between two representable values (rounding both ways), just above
+   half way, and just below half way.  */
+#define TEST_I_F(I, U, F, P, M)                                        \
 do {                                                           \
   TEST_I_F_VAL (I, F, (I)0, 1);                                        \
   TEST_I_F_VAL (I, F, (I)1, 1);                                        \
   TEST_I_F_VAL (I, F, (I)(((U)~(U)0) >> 1), P_OK1 (P, I));     \
-  TEST_I_F_VAL (I, F, (I)(U)~(((U)~(U)0) >> 1), 1);            \
-  TEST_I_F_VAL (I, F, (I)(U)~(U)0, P_OK (P, I));               \
+  TEST_I_F_VAL (I, F, (I)(U)~(((U)~(U)0) >> 1), M_OK1 (M, I)); \
+  TEST_I_F_VAL (I, F, (I)(U)~(U)0, 1);                         \
   TEST_I_F_VAL (I, F, HVAL0S (P, I), P_OK (P, I));             \
   TEST_I_F_VAL (I, F, HVAL0S (P, I) + 1, P_OK (P, I));         \
   TEST_I_F_VAL (I, F, HVAL0S (P, I) - 1, P_OK (P, I));         \
@@ -44,7 +45,7 @@ do {                                                          \
   TEST_I_F_VAL (U, F, (U)0, 1);                                        \
   TEST_I_F_VAL (U, F, (U)1, 1);                                        \
   TEST_I_F_VAL (U, F, (U)(((U)~(U)0) >> 1), P_OK1 (P, U));     \
-  TEST_I_F_VAL (U, F, (U)~(((U)~(U)0) >> 1), 1);               \
+  TEST_I_F_VAL (U, F, (U)~(((U)~(U)0) >> 1), M_OK1 (M, U));    \
   TEST_I_F_VAL (U, F, (U)~(U)0, P_OK (P, U));                  \
   TEST_I_F_VAL (U, F, HVAL0U (P, U), P_OK (P, U));             \
   TEST_I_F_VAL (U, F, HVAL0U (P, U) + 1, P_OK (P, U));         \
@@ -56,6 +57,7 @@ do {                                                          \
 
 #define P_OK(P, T) ((P) >= sizeof(T) * CHAR_BIT)
 #define P_OK1(P, T) ((P) >= sizeof(T) * CHAR_BIT - 1)
+#define M_OK1(M, T) ((M) > sizeof(T) * CHAR_BIT - 1)
 #define HVAL0U(P, U) (U)(P_OK (P, U)                                    \
                         ? (U)1                                          \
                         : (((U)1 << (sizeof(U) * CHAR_BIT - 1))         \

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index fc386b62f2a5cbd30e8bce9d51b26aec317d4631..b264686324a24ab1d9c5fe41808284dda79d3f3a 100644 (file)
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -2433,6 +2433,135 @@ proc check_effective_target_has_q_floating_suffix { } {
     } "$opts"]
 }
 
+# Return 1 if the target supports the _FloatN / _FloatNx type
+# indicated in the function name, 0 otherwise.
+
+proc check_effective_target_float16 {} {
+    return [check_no_compiler_messages_nocache float16 object {
+        _Float16 x;
+    }]
+}
+
+proc check_effective_target_float32 {} {
+    return [check_no_compiler_messages_nocache float32 object {
+        _Float32 x;
+    }]
+}
+
+proc check_effective_target_float64 {} {
+    return [check_no_compiler_messages_nocache float64 object {
+        _Float64 x;
+    }]
+}
+
+proc check_effective_target_float128 {} {
+    return [check_no_compiler_messages_nocache float128 object {
+        _Float128 x;
+    }]
+}
+
+proc check_effective_target_float32x {} {
+    return [check_no_compiler_messages_nocache float32x object {
+        _Float32x x;
+    }]
+}
+
+proc check_effective_target_float64x {} {
+    return [check_no_compiler_messages_nocache float64x object {
+        _Float64x x;
+    }]
+}
+
+proc check_effective_target_float128x {} {
+    return [check_no_compiler_messages_nocache float128x object {
+        _Float128x x;
+    }]
+}
+
+# Likewise, but runtime support for any special options used as well
+# as compile-time support is required.
+
+proc check_effective_target_float16_runtime {} {
+    return [check_effective_target_float16]
+}
+
+proc check_effective_target_float32_runtime {} {
+    return [check_effective_target_float32]
+}
+
+proc check_effective_target_float64_runtime {} {
+    return [check_effective_target_float64]
+}
+
+proc check_effective_target_float128_runtime {} {
+    if { ![check_effective_target_float128] } {
+       return 0
+    }
+    if { [istarget powerpc*-*-*] } {
+       return [check_effective_target_base_quadfloat_support]
+    }
+    return 1
+}
+
+proc check_effective_target_float32x_runtime {} {
+    return [check_effective_target_float32x]
+}
+
+proc check_effective_target_float64x_runtime {} {
+    if { ![check_effective_target_float64x] } {
+       return 0
+    }
+    if { [istarget powerpc*-*-*] } {
+       return [check_effective_target_base_quadfloat_support]
+    }
+    return 1
+}
+
+proc check_effective_target_float128x_runtime {} {
+    return [check_effective_target_float128x]
+}
+
+# Return 1 if the target hardware supports any options added for
+# _FloatN and _FloatNx types, 0 otherwise.
+
+proc check_effective_target_floatn_nx_runtime {} {
+    if { [istarget powerpc*-*-*] } {
+       return [check_effective_target_base_quadfloat_support]
+    }
+    return 1
+}
+
+# Add options needed to use the _FloatN / _FloatNx type indicated in
+# the function name.
+
+proc add_options_for_float16 { flags } {
+    return "$flags"
+}
+
+proc add_options_for_float32 { flags } {
+    return "$flags"
+}
+
+proc add_options_for_float64 { flags } {
+    return "$flags"
+}
+
+proc add_options_for_float128 { flags } {
+    return [add_options_for___float128 "$flags"]
+}
+
+proc add_options_for_float32x { flags } {
+    return "$flags"
+}
+
+proc add_options_for_float64x { flags } {
+    return [add_options_for___float128 "$flags"]
+}
+
+proc add_options_for_float128x { flags } {
+    return "$flags"
+}
+
 # Return 1 if the target supports __float128,
 # 0 otherwise.
 

diff --git a/gcc/tree-core.h b/gcc/tree-core.h
index 6e8595c3855c69d8a3f4673e2d5e59112db0d13a..8b3e5cc75a4e2cb80c0078558f8ddaa94bd1dc96 100644 (file)
--- a/gcc/tree-core.h
+++ b/gcc/tree-core.h
@@ -558,10 +558,44 @@ enum tree_index {
   TI_COMPLEX_DOUBLE_TYPE,
   TI_COMPLEX_LONG_DOUBLE_TYPE,
 
+  TI_COMPLEX_FLOAT16_TYPE,
+  TI_COMPLEX_FLOATN_NX_TYPE_FIRST = TI_COMPLEX_FLOAT16_TYPE,
+  TI_COMPLEX_FLOAT32_TYPE,
+  TI_COMPLEX_FLOAT64_TYPE,
+  TI_COMPLEX_FLOAT128_TYPE,
+  TI_COMPLEX_FLOAT32X_TYPE,
+  TI_COMPLEX_FLOAT64X_TYPE,
+  TI_COMPLEX_FLOAT128X_TYPE,
+
   TI_FLOAT_TYPE,
   TI_DOUBLE_TYPE,
   TI_LONG_DOUBLE_TYPE,
 
+  /* The _FloatN and _FloatNx types must be consecutive, and in the
+     same sequence as the corresponding complex types, which must also
+     be consecutive; _FloatN must come before _FloatNx; the order must
+     also be the same as in the floatn_nx_types array and the RID_*
+     values in c-common.h.  This is so that iterations over these
+     types work as intended.  */
+  TI_FLOAT16_TYPE,
+  TI_FLOATN_TYPE_FIRST = TI_FLOAT16_TYPE,
+  TI_FLOATN_NX_TYPE_FIRST = TI_FLOAT16_TYPE,
+  TI_FLOAT32_TYPE,
+  TI_FLOAT64_TYPE,
+  TI_FLOAT128_TYPE,
+  TI_FLOATN_TYPE_LAST = TI_FLOAT128_TYPE,
+#define NUM_FLOATN_TYPES (TI_FLOATN_TYPE_LAST - TI_FLOATN_TYPE_FIRST + 1)
+  TI_FLOAT32X_TYPE,
+  TI_FLOATNX_TYPE_FIRST = TI_FLOAT32X_TYPE,
+  TI_FLOAT64X_TYPE,
+  TI_FLOAT128X_TYPE,
+  TI_FLOATNX_TYPE_LAST = TI_FLOAT128X_TYPE,
+  TI_FLOATN_NX_TYPE_LAST = TI_FLOAT128X_TYPE,
+#define NUM_FLOATNX_TYPES (TI_FLOATNX_TYPE_LAST - TI_FLOATNX_TYPE_FIRST + 1)
+#define NUM_FLOATN_NX_TYPES (TI_FLOATN_NX_TYPE_LAST            \
+                            - TI_FLOATN_NX_TYPE_FIRST          \
+                            + 1)
+
   TI_FLOAT_PTR_TYPE,
   TI_DOUBLE_PTR_TYPE,
   TI_LONG_DOUBLE_PTR_TYPE,
@@ -1959,6 +1993,16 @@ struct GTY(()) builtin_info_type {
   unsigned declared_p : 1;
 };
 
+/* Information about a _FloatN or _FloatNx type that may be
+   supported.  */
+struct floatn_type_info {
+  /* The number N in the type name.  */
+  int n;
+  /* Whether it is an extended type _FloatNx (true) or an interchange
+     type (false).  */
+  bool extended;
+};
+
 
 /*---------------------------------------------------------------------------
                                 Global variables
@@ -2023,4 +2067,7 @@ extern GTY(()) tree current_function_decl;
 /* Nonzero means a FUNC_BEGIN label was emitted.  */
 extern GTY(()) const char * current_function_func_begin_label;
 
+/* Information about the _FloatN and _FloatNx types.  */
+extern const floatn_type_info floatn_nx_types[NUM_FLOATN_NX_TYPES];
+
 #endif  // GCC_TREE_CORE_H

diff --git a/gcc/tree.c b/gcc/tree.c
index 6efc30ce5c8201a2c7a96aace306967a5377d3d1..33e6f979b55c3e091a99cf1b66d32dee3572c404 100644 (file)
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -10140,6 +10140,20 @@ build_atomic_base (tree type, unsigned int align)
   return t;
 }
 
+/* Information about the _FloatN and _FloatNx types.  This must be in
+   the same order as the corresponding TI_* enum values.  */
+const floatn_type_info floatn_nx_types[NUM_FLOATN_NX_TYPES] =
+  {
+    { 16, false },
+    { 32, false },
+    { 64, false },
+    { 128, false },
+    { 32, true },
+    { 64, true },
+    { 128, true },
+  };
+
+
 /* Create nodes for all integer types (and error_mark_node) using the sizes
    of C datatypes.  SIGNED_CHAR specifies whether char is signed.  */
 
@@ -10312,6 +10326,29 @@ build_common_tree_nodes (bool signed_char)
   TYPE_PRECISION (long_double_type_node) = LONG_DOUBLE_TYPE_SIZE;
   layout_type (long_double_type_node);
 
+  for (i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+    {
+      int n = floatn_nx_types[i].n;
+      bool extended = floatn_nx_types[i].extended;
+      machine_mode mode = targetm.floatn_mode (n, extended);
+      if (mode == VOIDmode)
+       continue;
+      int precision = GET_MODE_PRECISION (mode);
+      /* Work around the rs6000 KFmode having precision 113 not
+        128.  */
+      const struct real_format *fmt = REAL_MODE_FORMAT (mode);
+      gcc_assert (fmt->b == 2 && fmt->emin + fmt->emax == 3);
+      int min_precision = fmt->p + ceil_log2 (fmt->emax - fmt->emin);
+      if (!extended)
+       gcc_assert (min_precision == n);
+      if (precision < min_precision)
+       precision = min_precision;
+      FLOATN_NX_TYPE_NODE (i) = make_node (REAL_TYPE);
+      TYPE_PRECISION (FLOATN_NX_TYPE_NODE (i)) = precision;
+      layout_type (FLOATN_NX_TYPE_NODE (i));
+      SET_TYPE_MODE (FLOATN_NX_TYPE_NODE (i), mode);
+    }
+
   float_ptr_type_node = build_pointer_type (float_type_node);
   double_ptr_type_node = build_pointer_type (double_type_node);
   long_double_ptr_type_node = build_pointer_type (long_double_type_node);
@@ -10346,6 +10383,13 @@ build_common_tree_nodes (bool signed_char)
   complex_double_type_node = build_complex_type (double_type_node);
   complex_long_double_type_node = build_complex_type (long_double_type_node);
 
+  for (i = 0; i < NUM_FLOATN_NX_TYPES; i++)
+    {
+      if (FLOATN_NX_TYPE_NODE (i) != NULL_TREE)
+       COMPLEX_FLOATN_NX_TYPE_NODE (i)
+         = build_complex_type (FLOATN_NX_TYPE_NODE (i));
+    }
+
 /* Make fixed-point nodes based on sat/non-sat and signed/unsigned.  */
 #define MAKE_FIXED_TYPE_NODE(KIND,SIZE) \
   sat_ ## KIND ## _type_node = \

diff --git a/gcc/tree.h b/gcc/tree.h
index fff65d6c80957758b5d15243d641652dce1236ec..16d13f3266b982a665b2f4b7de2b96f759bd5c08 100644 (file)
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -3605,6 +3605,17 @@ tree_operand_check_code (const_tree __t, enum tree_code __code, int __i,
 #define double_type_node               global_trees[TI_DOUBLE_TYPE]
 #define long_double_type_node          global_trees[TI_LONG_DOUBLE_TYPE]
 
+/* Nodes for particular _FloatN and _FloatNx types in sequence.  */
+#define FLOATN_TYPE_NODE(IDX)          global_trees[TI_FLOATN_TYPE_FIRST + (IDX)]
+#define FLOATN_NX_TYPE_NODE(IDX)       global_trees[TI_FLOATN_NX_TYPE_FIRST + (IDX)]
+#define FLOATNX_TYPE_NODE(IDX)         global_trees[TI_FLOATNX_TYPE_FIRST + (IDX)]
+
+/* Names for individual types, where required by back ends
+   (architecture-independent code should always iterate over all such
+   types).  */
+#define float128_type_node             global_trees[TI_FLOAT128_TYPE]
+#define float64x_type_node             global_trees[TI_FLOAT64X_TYPE]
+
 #define float_ptr_type_node            global_trees[TI_FLOAT_PTR_TYPE]
 #define double_ptr_type_node           global_trees[TI_DOUBLE_PTR_TYPE]
 #define long_double_ptr_type_node      global_trees[TI_LONG_DOUBLE_PTR_TYPE]
@@ -3615,6 +3626,8 @@ tree_operand_check_code (const_tree __t, enum tree_code __code, int __i,
 #define complex_double_type_node       global_trees[TI_COMPLEX_DOUBLE_TYPE]
 #define complex_long_double_type_node  global_trees[TI_COMPLEX_LONG_DOUBLE_TYPE]
 
+#define COMPLEX_FLOATN_NX_TYPE_NODE(IDX)       global_trees[TI_COMPLEX_FLOATN_NX_TYPE_FIRST + (IDX)]
+
 #define pointer_bounds_type_node        global_trees[TI_POINTER_BOUNDS_TYPE]
 
 #define void_type_node                 global_trees[TI_VOID_TYPE]

diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index e8e43f7285b5d5f042bb784fdfa929f246e4604f..f680f8bc89913bc662e7d5546d5d8d3864ac5fd6 100644 (file)
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,12 @@
+2016-08-19  Joseph Myers  <joseph@codesourcery.com>
+
+       PR c/32187
+       * include/cpplib.h (CPP_N_FLOATN, CPP_N_FLOATNX)
+       (CPP_N_WIDTH_FLOATN_NX, CPP_FLOATN_SHIFT, CPP_FLOATN_MAX): New
+       macros.
+       * expr.c (interpret_float_suffix): Handle fN, fNx, FN and FNx
+       suffixes.
+
 2016-08-19  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 
        * expr.c (eval_token): Append "evaluates to 0" to Wundef diagnostic.

diff --git a/libcpp/expr.c b/libcpp/expr.c
index d32f5a971899ee15626119515552ac171fb91742..61bc1b21af1837e0e1e98b0b9b3a079887f4dd0a 100644 (file)
--- a/libcpp/expr.c
+++ b/libcpp/expr.c
@@ -86,15 +86,52 @@ static cpp_num parse_has_include (cpp_reader *, enum include_type);
 
 /* Subroutine of cpp_classify_number.  S points to a float suffix of
    length LEN, possibly zero.  Returns 0 for an invalid suffix, or a
-   flag vector describing the suffix.  */
+   flag vector (of CPP_N_* bits) describing the suffix.  */
 static unsigned int
 interpret_float_suffix (cpp_reader *pfile, const uchar *s, size_t len)
 {
   size_t flags;
-  size_t f, d, l, w, q, i;
+  size_t f, d, l, w, q, i, fn, fnx, fn_bits;
 
   flags = 0;
-  f = d = l = w = q = i = 0;
+  f = d = l = w = q = i = fn = fnx = fn_bits = 0;
+
+  /* The following decimal float suffixes, from TR 24732:2009 and TS
+     18661-2:2015, are supported:
+
+     df, DF - _Decimal32.
+     dd, DD - _Decimal64.
+     dl, DL - _Decimal128.
+
+     The dN and DN suffixes for _DecimalN, and dNx and DNx for
+     _DecimalNx, defined in TS 18661-3:2015, are not supported.
+
+     Fixed-point suffixes, from TR 18037:2008, are supported.  They
+     consist of three parts, in order:
+
+     (i) An optional u or U, for unsigned types.
+
+     (ii) An optional h or H, for short types, or l or L, for long
+     types, or ll or LL, for long long types.  Use of ll or LL is a
+     GNU extension.
+
+     (iii) r or R, for _Fract types, or k or K, for _Accum types.
+
+     Otherwise the suffix is for a binary or standard floating-point
+     type.  Such a suffix, or the absence of a suffix, may be preceded
+     or followed by i, I, j or J, to indicate an imaginary number with
+     the corresponding complex type.  The following suffixes for
+     binary or standard floating-point types are supported:
+
+     f, F - float (ISO C and C++).
+     l, L - long double (ISO C and C++).
+     d, D - double, even with the FLOAT_CONST_DECIMAL64 pragma in
+           operation (from TR 24732:2009; the pragma and the suffix
+           are not included in TS 18661-2:2015).
+     w, W - machine-specific type such as __float80 (GNU extension).
+     q, Q - machine-specific type such as __float128 (GNU extension).
+     fN, FN - _FloatN (TS 18661-3:2015).
+     fNx, FNx - _FloatNx (TS 18661-3:2015).  */
 
   /* Process decimal float suffixes, which are two letters starting
      with d or D.  Order and case are significant.  */
@@ -172,20 +209,64 @@ interpret_float_suffix (cpp_reader *pfile, const uchar *s, size_t len)
 
   /* In any remaining valid suffix, the case and order don't matter.  */
   while (len--)
-    switch (s[len])
-      {
-      case 'f': case 'F': f++; break;
-      case 'd': case 'D': d++; break;
-      case 'l': case 'L': l++; break;
-      case 'w': case 'W': w++; break;
-      case 'q': case 'Q': q++; break;
-      case 'i': case 'I':
-      case 'j': case 'J': i++; break;
-      default:
-       return 0;
-      }
+    {
+      switch (s[0])
+       {
+       case 'f': case 'F':
+         f++;
+         if (len > 0
+             && !CPP_OPTION (pfile, cplusplus)
+             && s[1] >= '1'
+             && s[1] <= '9'
+             && fn_bits == 0)
+           {
+             f--;
+             while (len > 0
+                    && s[1] >= '0'
+                    && s[1] <= '9'
+                    && fn_bits < CPP_FLOATN_MAX)
+               {
+                 fn_bits = fn_bits * 10 + (s[1] - '0');
+                 len--;
+                 s++;
+               }
+             if (len > 0 && s[1] == 'x')
+               {
+                 fnx++;
+                 len--;
+                 s++;
+               }
+             else
+               fn++;
+           }
+         break;
+       case 'd': case 'D': d++; break;
+       case 'l': case 'L': l++; break;
+       case 'w': case 'W': w++; break;
+       case 'q': case 'Q': q++; break;
+       case 'i': case 'I':
+       case 'j': case 'J': i++; break;
+       default:
+         return 0;
+       }
+      s++;
+    }
 
-  if (f + d + l + w + q > 1 || i > 1)
+  /* Reject any case of multiple suffixes specifying types, multiple
+     suffixes specifying an imaginary constant, _FloatN or _FloatNx
+     suffixes for invalid values of N, and _FloatN suffixes for values
+     of N larger than can be represented in the return value.  The
+     caller is responsible for rejecting _FloatN suffixes where
+     _FloatN is not supported on the chosen target.  */
+  if (f + d + l + w + q + fn + fnx > 1 || i > 1)
+    return 0;
+  if (fn_bits > CPP_FLOATN_MAX)
+    return 0;
+  if (fnx && fn_bits != 32 && fn_bits != 64 && fn_bits != 128)
+    return 0;
+  if (fn && fn_bits != 16 && fn_bits % 32 != 0)
+    return 0;
+  if (fn && fn_bits == 96)
     return 0;
 
   if (i && !CPP_OPTION (pfile, ext_numeric_literals))
@@ -199,7 +280,10 @@ interpret_float_suffix (cpp_reader *pfile, const uchar *s, size_t len)
             d ? CPP_N_MEDIUM :
             l ? CPP_N_LARGE :
             w ? CPP_N_MD_W :
-            q ? CPP_N_MD_Q : CPP_N_DEFAULT));
+            q ? CPP_N_MD_Q :
+            fn ? CPP_N_FLOATN | (fn_bits << CPP_FLOATN_SHIFT) :
+            fnx ? CPP_N_FLOATNX | (fn_bits << CPP_FLOATN_SHIFT) :
+            CPP_N_DEFAULT));
 }
 
 /* Return the classification flags for a float suffix.  */

diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
index a497811eec07b8fc0dcc3b807a62ba110f006268..cfc6ccd1a907c5067c02bf0517a8a00884ae3bc7 100644 (file)
--- a/libcpp/include/cpplib.h
+++ b/libcpp/include/cpplib.h
@@ -956,9 +956,16 @@ struct cpp_num
 
 #define CPP_N_FRACT    0x100000 /* Fract types.  */
 #define CPP_N_ACCUM    0x200000 /* Accum types.  */
+#define CPP_N_FLOATN   0x400000 /* _FloatN types.  */
+#define CPP_N_FLOATNX  0x800000 /* _FloatNx types.  */
 
 #define CPP_N_USERDEF  0x1000000 /* C++0x user-defined literal.  */
 
+#define CPP_N_WIDTH_FLOATN_NX  0xF0000000 /* _FloatN / _FloatNx value
+                                             of N, divided by 16.  */
+#define CPP_FLOATN_SHIFT       24
+#define CPP_FLOATN_MAX 0xF0
+
 /* Classify a CPP_NUMBER token.  The return value is a combination of
    the flags from the above sets.  */
 extern unsigned cpp_classify_number (cpp_reader *, const cpp_token *,