5 files changed, 121 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_dfmal.c b/sysdeps/ieee754/ldbl-128/s_dfmal.c
new file mode 100644
index 0000000000..e00ddba22c
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128/s_dfmal.c
@@ -0,0 +1,38 @@
+/* Fused multiply-add of long double (ldbl-128) value, narrowing the result
+   to double.
+   Copyright (C) 2021 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#define f32xfmaf64x __hide_f32xfmaf64x
+#define f32xfmaf128 __hide_f32xfmaf128
+#define f64fmaf64x __hide_f64fmaf64x
+#define f64fmaf128 __hide_f64fmaf128
+#include <math.h>
+#undef f32xfmaf64x
+#undef f32xfmaf128
+#undef f64fmaf64x
+#undef f64fmaf128
+
+#include <math-narrow.h>
+
+double
+__dfmal (_Float128 x, _Float128 y, _Float128 z)
+{
+  NARROW_FMA_ROUND_TO_ODD (x, y, z, double, union ieee854_long_double, l,
+			   mantissa3, false);
+}
+libm_alias_double_ldouble (fma)
diff --git a/sysdeps/ieee754/ldbl-128/s_f64xfmaf128.c b/sysdeps/ieee754/ldbl-128/s_f64xfmaf128.c
new file mode 100644
index 0000000000..8616451d39
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128/s_f64xfmaf128.c
@@ -0,0 +1,39 @@
+/* Fused multiply-add of _Float128 value, converting the result to _Float64x.
+   Copyright (C) 2021 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <math-narrow.h>
+#include <tininess.h>
+
+/* math_ldbl.h defines _Float128 to long double for this directory,
+   but when they are different, this function must be defined with
+   _Float128 arguments to avoid defining an alias with an incompatible
+   type.  */
+#undef _Float128
+
+#if __HAVE_FLOAT64X_LONG_DOUBLE && __HAVE_DISTINCT_FLOAT128
+_Float64x
+__f64xfmaf128 (_Float128 x, _Float128 y, _Float128 z)
+{
+  NARROW_FMA_ROUND_TO_ODD (x, y, z, _Float64x, union ieee854_long_double, l,
+			   mantissa3, TININESS_AFTER_ROUNDING);
+}
+libm_alias_float64x_float128 (fma)
+#else
+/* Defined as an alias of fmal.  */
+#endif
diff --git a/sysdeps/ieee754/ldbl-128/s_ffmal.c b/sysdeps/ieee754/ldbl-128/s_ffmal.c
new file mode 100644
index 0000000000..65d5e4830a
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128/s_ffmal.c
@@ -0,0 +1,34 @@
+/* Fused multiply-add of long double (ldbl-128) value, narrowing the result
+   to float.
+   Copyright (C) 2021 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#define f32fmaf64x __hide_f32fmaf64x
+#define f32fmaf128 __hide_f32fmaf128
+#include <math.h>
+#undef f32fmaf64x
+#undef f32fmaf128
+
+#include <math-narrow.h>
+
+float
+__ffmal (_Float128 x, _Float128 y, _Float128 z)
+{
+  NARROW_FMA_ROUND_TO_ODD (x, y, z, float, union ieee854_long_double, l,
+			   mantissa3, false);
+}
+libm_alias_float_ldouble (fma)
diff --git a/sysdeps/ieee754/ldbl-128/s_fma.c b/sysdeps/ieee754/ldbl-128/s_fma.c
index 4795e717e8..bc90c8813f 100644
--- a/sysdeps/ieee754/ldbl-128/s_fma.c
+++ b/sysdeps/ieee754/ldbl-128/s_fma.c
@@ -17,10 +17,15 @@
    <https://www.gnu.org/licenses/>.  */
 
 #define NO_MATH_REDIRECT
+#define dfmal __hide_dfmal
+#define f32xfmaf64 __hide_f32xfmaf64
 #include <math.h>
+#undef dfmal
+#undef f32xfmaf64
 #include <fenv.h>
 #include <ieee754.h>
 #include <libm-alias-double.h>
+#include <math-narrow-alias.h>
 #include <math-use-builtins.h>
 
 /* This implementation relies on long double being more than twice as
@@ -58,4 +63,5 @@ __fma (double x, double y, double z)
 }
 #ifndef __fma
 libm_alias_double (__fma, fma)
+libm_alias_double_narrow (__fma, fma)
 #endif
diff --git a/sysdeps/ieee754/ldbl-128/s_fmal.c b/sysdeps/ieee754/ldbl-128/s_fmal.c
index aff9efca8c..4595ad2bc5 100644
--- a/sysdeps/ieee754/ldbl-128/s_fmal.c
+++ b/sysdeps/ieee754/ldbl-128/s_fmal.c
@@ -18,12 +18,15 @@
 
 #define NO_MATH_REDIRECT
 #include <float.h>
+#define f64xfmaf128 __hide_f64xfmaf128
 #include <math.h>
+#undef f64xfmaf128
 #include <fenv.h>
 #include <ieee754.h>
 #include <math-barriers.h>
 #include <math_private.h>
 #include <libm-alias-ldouble.h>
+#include <math-narrow-alias.h>
 #include <tininess.h>
 #include <math-use-builtins.h>
 
@@ -303,3 +306,4 @@ __fmal (_Float128 x, _Float128 y, _Float128 z)
 #endif /* ! USE_FMAL_BUILTIN  */
 }
 libm_alias_ldouble (__fma, fma)
+libm_alias_ldouble_narrow (__fma, fma)