aboutsummaryrefslogtreecommitdiff
path: root/bits/mathdef.h
diff options
context:
space:
mode:
Diffstat (limited to 'bits/mathdef.h')
-rw-r--r--bits/mathdef.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/bits/mathdef.h b/bits/mathdef.h
index 00c6724..9734380 100644
--- a/bits/mathdef.h
+++ b/bits/mathdef.h
@@ -34,6 +34,20 @@ typedef double double_t; /* `double' expressions are evaluated as
# define FP_ILOGB0 (-2147483647)
# define FP_ILOGBNAN 2147483647
+/* The GCC 4.6 compiler will define __FP_FAST_FMA{,F,L} if the fma{,f,l}
+ builtins are supported. */
+#if __FP_FAST_FMA
+# define FP_FAST_FMA 1
+#endif
+
+#if __FP_FAST_FMAF
+# define FP_FAST_FMAF 1
+#endif
+
+#if __FP_FAST_FMAL
+# define FP_FAST_FMAL 1
+#endif
+
#endif /* ISO C99 */
#ifndef __NO_LONG_DOUBLE_MATH