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authorJoseph Myers <joseph@codesourcery.com>2017-08-25 17:02:33 +0000
committerJoseph Myers <joseph@codesourcery.com>2017-08-25 17:02:33 +0000
commita6ccdb0839756c00377e99ac37f9721028f5d719 (patch)
tree6f28f2d61ae6f549f25c1ef1d2ca926b13f4b590 /math
parent23761119feea282d2d209a01902e5d92049ea6b6 (diff)
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Use __HAVE_DISTINCT_FLOAT128 in tgmath.h.
When _Float128 is ABI-equivalent to long double, there is no need for tgmath.h to have any special _Float128 handling: it's always OK to call the long double versions of functions for _Float128 arguments in that case, and the logic to determine return types is generic. Thus, this patch changes the use of __HAVE_FLOAT128 to __HAVE_DISTINCT_FLOAT128, as a minor optimization to reduce the size of the macro expansions in the ABI-equivalent case. Tested for x86_64. * math/tgmath.h [__HAVE_FLOAT128]: Change conditional to [__HAVE_DISTINCT_FLOAT128].
Diffstat (limited to 'math')
-rw-r--r--math/tgmath.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/math/tgmath.h b/math/tgmath.h
index 68cee64..243813c 100644
--- a/math/tgmath.h
+++ b/math/tgmath.h
@@ -118,7 +118,7 @@
/* Expand to text that checks if ARG_COMB has type _Float128, and if
so calls the appropriately suffixed FCT (which may include a cast),
or FCT and CFCT for complex functions, with arguments ARG_CALL. */
-# if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# if __HAVE_DISTINCT_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
# define __TGMATH_F128(arg_comb, fct, arg_call) \
__builtin_types_compatible_p (__typeof (+(arg_comb)), _Float128) \
? fct ## f128 arg_call :