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authorTulio Magno Quites Machado Filho <tuliom@linux.ibm.com>2018-05-11 18:05:03 -0300
committerTulio Magno Quites Machado Filho <tuliom@linux.ibm.com>2018-05-11 18:05:03 -0300
commit5db7d705db472f47a349fe342a8d7150ec922786 (patch)
treebd3d1a77f9d27ccacca0dcdb13313fd8a191b2ce /bits
parentb4d5b8b02133e0c317e6c836b51bbee3b00877b8 (diff)
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powerpc: Fix the compiler type used with C++ when -mabi=ieeelongdouble
When compiling C++ code with -mabi=ieeelongdouble, KCtype is unavailable and the long double type should be used instead. This is also providing macro __HAVE_FLOAT128_UNLIKE_LDBL in order to identify the kind of long double type is being used in the current compilation unit. Notice that bits/floatn.h cannot benefit from the new macro due to order of header inclusion. * bits/floatn-common.h: Define __HAVE_FLOAT128_UNLIKE_LDBL. * math/math.h: Restrict the prototype definition for the functions issignaling(_Float128) and iszero(_Float128); and template __iseqsig_type<_Float128>, from __HAVE_DISTINCT_FLOAT128 to __HAVE_FLOAT128_UNLIKE_LDBL. * sysdeps/powerpc/bits/floatn.h [__HAVE_FLOAT128 && (!__GNUC_PREREQ (7, 0) || defined __cplusplus) && __LDBL_MANT_DIG__ == 113]: Use long double suffix for __f128() constants; define the type _Float128 as long double; and reuse long double in __CFLOAT128. Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Diffstat (limited to 'bits')
-rw-r--r--bits/floatn-common.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/bits/floatn-common.h b/bits/floatn-common.h
index 070cdd0247..1d8958a193 100644
--- a/bits/floatn-common.h
+++ b/bits/floatn-common.h
@@ -56,6 +56,13 @@
#define __HAVE_DISTINCT_FLOAT64X 0
#define __HAVE_DISTINCT_FLOAT128X __HAVE_FLOAT128X
+/* Defined to 1 if the corresponding _FloatN type is not binary compatible
+ with the corresponding ISO C type in the current compilation unit as
+ opposed to __HAVE_DISTINCT_FLOATN, which indicates the default types built
+ in glibc. */
+#define __HAVE_FLOAT128_UNLIKE_LDBL (__HAVE_DISTINCT_FLOAT128 \
+ && __LDBL_MANT_DIG__ != 113)
+
/* Defined to 1 if any _FloatN or _FloatNx types that are not
ABI-distinct are however distinct types at the C language level (so
for the purposes of __builtin_types_compatible_p and _Generic). */