diff --git a/NEWS b/NEWS
index 06c9251..5678031 100644
--- a/NEWS
+++ b/NEWS
@@ -9,7 +9,11 @@ Version 2.28
 
 Major new features:
 
-  [Add new features here]
+* <math.h> functions that round their results to a narrower type are added
+  from TS 18661-1:2014 and TS 18661-3:2015:
+
+  - fadd, faddl, daddl and corresponding fMaddfN, fMaddfNx, fMxaddfN and
+    fMxaddfNx functions.
 
 Deprecated and removed features, and other changes affecting compatibility:
 
diff --git a/manual/arith.texi b/manual/arith.texi
index 56ae6dd..39f2a5d 100644
--- a/manual/arith.texi
+++ b/manual/arith.texi
@@ -2191,6 +2191,25 @@ In @theglibc{}, this always means the operation is implemented in
 hardware.
 @end deftypefun
 
+@deftypefun float fadd (double @var{x}, double @var{y})
+@deftypefunx float faddl (long double @var{x}, long double @var{y})
+@deftypefunx double daddl (long double @var{x}, long double @var{y})
+@deftypefunx _FloatM fMaddfN (_Float@var{N} @var{x}, _Float@var{N} @var{y})
+@deftypefunx _FloatM fMaddfNx (_Float@var{N}x @var{x}, _Float@var{N}x @var{y})
+@deftypefunx _FloatMx fMxaddfN (_Float@var{N} @var{x}, _Float@var{N} @var{y})
+@deftypefunx _FloatMx fMxaddfNx (_Float@var{N}x @var{x}, _Float@var{N}x @var{y})
+@standards{TS 18661-1:2014, math.h}
+@standardsx{fMaddfN, TS 18661-3:2015, math.h}
+@standardsx{fMaddfNx, TS 18661-3:2015, math.h}
+@standardsx{fMxaddfN, TS 18661-3:2015, math.h}
+@standardsx{fMxaddfNx, TS 18661-3:2015, math.h}
+@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}}
+These functions, from TS 18661-1:2014 and TS 18661-3:2015, return
+@math{@var{x} + @var{y}}, rounded once to the return type of the
+function without any intermediate rounding to the type of the
+arguments.
+@end deftypefun
+
 @node Complex Numbers
 @section Complex Numbers
 @pindex complex.h
diff --git a/math/Makefile b/math/Makefile
index 42e540c..718b06d 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -89,7 +89,7 @@ libm-compat-calls =							\
 	w_lgammaF_r_compat w_lgammaF_compat2 w_expF_compat		\
 	w_lgamma_compatF k_standardF
 
-libm-narrow-fns =
+libm-narrow-fns = add
 libm-narrow-types-basic = s_fF s_f32xFf64
 libm-narrow-types-ldouble-yes = s_fFl s_dFl
 libm-narrow-types-float128-yes = s_f32Ff128 s_f64Ff128 s_f64xFf128
@@ -284,7 +284,7 @@ libm-test-funcs-noauto = canonicalize ceil cimag conj copysign cproj creal \
 			 scalbln scalbn setpayload setpayloadsig signbit \
 			 significand totalorder totalordermag trunc ufromfp \
 			 ufromfpx
-libm-test-funcs-narrow =
+libm-test-funcs-narrow = add
 libm-test-funcs-all = $(libm-test-funcs-auto) $(libm-test-funcs-noauto)
 libm-test-c-auto = $(foreach f,$(libm-test-funcs-auto),libm-test-$(f).c)
 libm-test-c-noauto = $(foreach f,$(libm-test-funcs-noauto),libm-test-$(f).c)
diff --git a/math/Versions b/math/Versions
index 01ed388..9191c0f 100644
--- a/math/Versions
+++ b/math/Versions
@@ -551,4 +551,13 @@ libm {
     y1f32; y1f64; y1f32x;
     ynf32; ynf64; ynf32x;
   }
+  GLIBC_2.28 {
+    # Functions not involving _Float64x or _Float128, for all configurations.
+    fadd; faddl; daddl;
+    f32addf32x; f32addf64; f32xaddf64;
+    # Functions involving _Float64x or _Float128, for some configurations.
+    f32addf64x; f32addf128;
+    f32xaddf64x; f32xaddf128; f64addf64x; f64addf128;
+    f64xaddf128;
+  }
 }
diff --git a/math/auto-libm-test-in b/math/auto-libm-test-in
index 614fe25..fc407e9 100644
--- a/math/auto-libm-test-in
+++ b/math/auto-libm-test-in
@@ -142,6 +142,101 @@ acosh 0x1.1808eep+0
 acosh 0x1.1052c4p+0
 acosh max no-test-inline
 
+add 0 0
+add 0 -0
+add -0 0
+add -0 -0
+add max max
+add max -max
+add -max max
+add -max -max
+add min min missing-underflow:arg-ibm128
+add min -min missing-underflow:arg-ibm128
+add -min min missing-underflow:arg-ibm128
+add -min -min missing-underflow:arg-ibm128
+add min_subnorm min_subnorm missing-underflow:arg-ibm128
+add min_subnorm -min_subnorm missing-underflow:arg-ibm128
+add -min_subnorm min_subnorm missing-underflow:arg-ibm128
+add -min_subnorm -min_subnorm missing-underflow:arg-ibm128
+add 1 2
+add 1 -2
+add -1 2
+add -1 -2
+add 100.5 0.75
+add 100.5 -0.75
+add -100.5 0.75
+add -100.5 -0.75
+add 1 0x1p-23
+add 1 0x1.7fp-23
+add 1 0x1.8p-23
+add 1 0x1.81p-23
+add 1 0x1p-24
+add 1 0x1.1p-24
+add 1 0x0.fp-24
+add 1 min
+add 1 -min
+add 1 min_subnorm
+add 1 -min_subnorm
+add -1 min
+add -1 -min
+add -1 min_subnorm
+add -1 -min_subnorm
+# Cases where larger argument is half way between two values of a
+# floating-point format, so that double rounding would sometimes yield
+# the wrong result.
+add 0x1.000001p0 min
+add 0x1.000001p0 -min
+add 0x1.000001p0 min_subnorm
+add 0x1.000001p0 -min_subnorm
+add -0x1.000001p0 min
+add -0x1.000001p0 -min
+add -0x1.000001p0 min_subnorm
+add -0x1.000001p0 -min_subnorm
+add 0x1.00000000000008p0 min
+add 0x1.00000000000008p0 -min
+add 0x1.00000000000008p0 min_subnorm
+add 0x1.00000000000008p0 -min_subnorm
+add -0x1.00000000000008p0 min
+add -0x1.00000000000008p0 -min
+add -0x1.00000000000008p0 min_subnorm
+add -0x1.00000000000008p0 -min_subnorm
+add 0x1.0000000000000001p0 min
+add 0x1.0000000000000001p0 -min
+add 0x1.0000000000000001p0 min_subnorm
+add 0x1.0000000000000001p0 -min_subnorm
+add -0x1.0000000000000001p0 min
+add -0x1.0000000000000001p0 -min
+add -0x1.0000000000000001p0 min_subnorm
+add -0x1.0000000000000001p0 -min_subnorm
+# Two values representable in the same format with sum very close to
+# half way between two representable values.  In particular, verify
+# that there is no intermediate rounding to 64 bits when adding two
+# double values.
+add 1 0x1.000002p-24
+add 1 -0x1.000002p-24
+add 1 0x0.ffffffp-24
+add 1 -0x0.ffffffp-24
+add 0x1.000002p0 0x1.000002p-24
+add 0x1.000002p0 -0x1.000002p-24
+add 0x1.000002p0 0x0.ffffffp-24
+add 0x1.000002p0 -0x0.ffffffp-24
+add 1 0x1.0000000000001p-53
+add 1 -0x1.0000000000001p-53
+add 1 0x0.fffffffffffff8p-53
+add 1 -0x0.fffffffffffff8p-53
+add 0x1.0000000000001p0 0x1.0000000000001p-53
+add 0x1.0000000000001p0 -0x1.0000000000001p-53
+add 0x1.0000000000001p0 0x0.fffffffffffff8p-53
+add 0x1.0000000000001p0 -0x0.fffffffffffff8p-53
+add 1 0x1.0000000000000002p-64
+add 1 -0x1.0000000000000002p-64
+add 1 0x0.ffffffffffffffffp-64
+add 1 -0x0.ffffffffffffffffp-64
+add 0x1.0000000000000002p0 0x1.0000000000000002p-64
+add 0x1.0000000000000002p0 -0x1.0000000000000002p-64
+add 0x1.0000000000000002p0 0x0.ffffffffffffffffp-64
+add 0x1.0000000000000002p0 -0x0.ffffffffffffffffp-64
+
 asin 0
 asin -0
 asin 0.5
diff --git a/math/bits/mathcalls-narrow.h b/math/bits/mathcalls-narrow.h
index 0f1f051..642d094 100644
--- a/math/bits/mathcalls-narrow.h
+++ b/math/bits/mathcalls-narrow.h
@@ -19,3 +19,6 @@
 #ifndef _MATH_H
 # error "Never include <bits/mathcalls-narrow.h> directly; include <math.h> instead."
 #endif
+
+/* Add.  */
+__MATHCALL_NARROW (__MATHCALL_NAME (add), __MATHCALL_REDIR_NAME (add), 2);
diff --git a/math/gen-auto-libm-tests.c b/math/gen-auto-libm-tests.c
index 442a10d..9c244de 100644
--- a/math/gen-auto-libm-tests.c
+++ b/math/gen-auto-libm-tests.c
@@ -531,6 +531,7 @@ static test_function test_functions[] =
   {
     FUNC_mpfr_f_f ("acos", mpfr_acos, false),
     FUNC_mpfr_f_f ("acosh", mpfr_acosh, false),
+    FUNC_mpfr_ff_f ("add", mpfr_add, true),
     FUNC_mpfr_f_f ("asin", mpfr_asin, false),
     FUNC_mpfr_f_f ("asinh", mpfr_asinh, false),
     FUNC_mpfr_f_f ("atan", mpfr_atan, false),
diff --git a/math/libm-test-narrow-add.inc b/math/libm-test-narrow-add.inc
new file mode 100644
index 0000000..cdde4dc
--- /dev/null
+++ b/math/libm-test-narrow-add.inc
@@ -0,0 +1,179 @@
+/* Test narrowing add.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include "libm-test-driver.c"
+
+static const struct test_aa_f_data add_test_data[] =
+  {
+    TEST_aa_f (add, arg_qnan_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_qnan_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_qnan_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_qnan_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+
+    TEST_aa_f (add, arg_qnan_value, arg_plus_zero, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, arg_minus_zero, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, arg_plus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, arg_minus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, arg_min_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, -arg_min_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, arg_min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, -arg_min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, arg_max_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_qnan_value, -arg_max_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_zero, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_zero, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_infty, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_infty, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_min_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_min_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_min_subnorm_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_min_subnorm_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_max_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_max_value, arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, arg_plus_zero, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, arg_minus_zero, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, arg_plus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, arg_minus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, arg_min_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, -arg_min_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, arg_min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, -arg_min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, arg_max_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_qnan_value, -arg_max_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_zero, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_zero, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_infty, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_infty, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_min_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_min_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_min_subnorm_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_min_subnorm_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_max_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_max_value, -arg_qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+
+    TEST_aa_f (add, arg_snan_value, arg_plus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, arg_minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, arg_plus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, arg_minus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, arg_min_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, -arg_min_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, arg_min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, -arg_min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, arg_max_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_snan_value, -arg_max_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_plus_zero, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_minus_zero, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_plus_infty, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_minus_infty, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_min_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_min_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_min_subnorm_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_min_subnorm_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_max_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_max_value, arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, arg_plus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, arg_minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, arg_plus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, arg_minus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, arg_min_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, -arg_min_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, arg_min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, -arg_min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, arg_max_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_snan_value, -arg_max_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_plus_zero, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_minus_zero, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_plus_infty, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_minus_infty, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_min_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_min_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_min_subnorm_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_min_subnorm_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, arg_max_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_aa_f (add, -arg_max_value, -arg_snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+
+    TEST_aa_f (add, arg_plus_infty, arg_plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_infty, arg_minus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_aa_f (add, arg_minus_infty, arg_plus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_aa_f (add, arg_minus_infty, arg_minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+
+    TEST_aa_f (add, arg_plus_infty, arg_plus_zero, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_infty, arg_minus_zero, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_infty, arg_min_value, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_infty, -arg_min_value, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_infty, arg_min_subnorm_value, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_infty, -arg_min_subnorm_value, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_plus_infty, arg_max_value, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|XFAIL_ROUNDING_IBM128_LIBGCC),
+    TEST_aa_f (add, arg_plus_infty, -arg_max_value, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|XFAIL_ROUNDING_IBM128_LIBGCC),
+    TEST_aa_f (add, arg_plus_zero, arg_plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_zero, arg_plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_min_value, arg_plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_min_value, arg_plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_min_subnorm_value, arg_plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_min_subnorm_value, arg_plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_max_value, arg_plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_max_value, arg_plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_infty, arg_plus_zero, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_infty, arg_minus_zero, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_infty, arg_min_value, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_infty, -arg_min_value, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_infty, arg_min_subnorm_value, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_infty, -arg_min_subnorm_value, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_infty, arg_max_value, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|XFAIL_ROUNDING_IBM128_LIBGCC),
+    TEST_aa_f (add, arg_minus_infty, -arg_max_value, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|XFAIL_ROUNDING_IBM128_LIBGCC),
+    TEST_aa_f (add, arg_plus_zero, arg_minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_minus_zero, arg_minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_min_value, arg_minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_min_value, arg_minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_min_subnorm_value, arg_minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_min_subnorm_value, arg_minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, arg_max_value, arg_minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_aa_f (add, -arg_max_value, arg_minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+
+    AUTO_TESTS_aa_f (add),
+  };
+
+static void
+add_test (void)
+{
+  ALL_RM_TEST (add, 1, add_test_data, RUN_TEST_LOOP_aa_f, END);
+}
+
+static void
+do_test (void)
+{
+  add_test ();
+}
+
+/*
+ * Local Variables:
+ * mode:c
+ * End:
+ */
diff --git a/math/math-narrow.h b/math/math-narrow.h
index 1a3a5c5..03397a6 100644
--- a/math/math-narrow.h
+++ b/math/math-narrow.h
@@ -49,6 +49,64 @@
     u.d;								\
   })
 
+/* Check for error conditions from a narrowing add function returning
+   RET with arguments X and Y and set errno as needed.  Overflow and
+   underflow can occur for finite arguments and a domain error for
+   infinite ones.  */
+#define CHECK_NARROW_ADD(RET, X, Y)			\
+  do							\
+    {							\
+      if (!isfinite (RET))				\
+	{						\
+	  if (isnan (RET))				\
+	    {						\
+	      if (!isnan (X) && !isnan (Y))		\
+		__set_errno (EDOM);			\
+	    }						\
+	  else if (isfinite (X) && isfinite (Y))	\
+	    __set_errno (ERANGE);			\
+	}						\
+      else if ((RET) == 0 && (X) != -(Y))		\
+	__set_errno (ERANGE);				\
+    }							\
+  while (0)
+
+/* Implement narrowing add using round-to-odd.  The arguments are X
+   and Y, the return type is TYPE and UNION, MANTISSA and SUFFIX are
+   as for ROUND_TO_ODD.  */
+#define NARROW_ADD_ROUND_TO_ODD(X, Y, TYPE, UNION, SUFFIX, MANTISSA)	\
+  do									\
+    {									\
+      TYPE ret;								\
+									\
+      /* Ensure a zero result is computed in the original rounding	\
+	 mode.  */							\
+      if ((X) == -(Y))							\
+	ret = (TYPE) ((X) + (Y));					\
+      else								\
+	ret = (TYPE) ROUND_TO_ODD (math_opt_barrier (X) + (Y),		\
+				   UNION, SUFFIX, MANTISSA);		\
+									\
+      CHECK_NARROW_ADD (ret, (X), (Y));					\
+      return ret;							\
+    }									\
+  while (0)
+
+/* Implement a narrowing add function that is not actually narrowing
+   or where no attempt is made to be correctly rounding (the latter
+   only applies to IBM long double).  The arguments are X and Y and
+   the return type is TYPE.  */
+#define NARROW_ADD_TRIVIAL(X, Y, TYPE)		\
+  do						\
+    {						\
+      TYPE ret;					\
+						\
+      ret = (TYPE) ((X) + (Y));			\
+      CHECK_NARROW_ADD (ret, (X), (Y));		\
+      return ret;				\
+    }						\
+  while (0)
+
 /* The following macros declare aliases for a narrowing function.  The
    sole argument is the base name of a family of functions, such as
    "add".  If any platform changes long double format after the
diff --git a/sysdeps/i386/fpu/s_f32xaddf64.c b/sysdeps/i386/fpu/s_f32xaddf64.c
new file mode 100644
index 0000000..c622a23
--- /dev/null
+++ b/sysdeps/i386/fpu/s_f32xaddf64.c
@@ -0,0 +1,41 @@
+/* Add _Float64 values, converting the result to _Float32x.  i386 version.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fpu_control.h>
+#include <math_private.h>
+#include <math-narrow.h>
+
+_Float32x
+__f32xaddf64 (_Float64 x, _Float64 y)
+{
+  /* To avoid double rounding, set double precision for the addition.
+     math_narrow_eval is still needed to eliminate excess range in the
+     case of overflow.  If the result of the addition is in the
+     subnormal range for double, it is exact, so no issues of double
+     rounding for subnormals arise.  */
+  fpu_control_t cw, cw_double;
+  _FPU_GETCW (cw);
+  cw_double = (cw & ~_FPU_EXTENDED) | _FPU_DOUBLE;
+  _FPU_SETCW (cw_double);
+  _Float32x ret = math_narrow_eval (x + y);
+  _FPU_SETCW (cw);
+  CHECK_NARROW_ADD (ret, x, y);
+  return ret;
+}
+libm_alias_float32x_float64 (add)
diff --git a/sysdeps/ieee754/dbl-64/s_f32xaddf64.c b/sysdeps/ieee754/dbl-64/s_f32xaddf64.c
new file mode 100644
index 0000000..6e20a9e
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/s_f32xaddf64.c
@@ -0,0 +1,30 @@
+/* Add _Float64 values, converting the result to _Float32x.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define daddl __hide_daddl
+#include <math.h>
+#undef daddl
+
+#include <math-narrow.h>
+
+_Float32x
+__f32xaddf64 (_Float64 x, _Float64 y)
+{
+  NARROW_ADD_TRIVIAL (x, y, _Float32x);
+}
+libm_alias_float32x_float64 (add)
diff --git a/sysdeps/ieee754/dbl-64/s_fadd.c b/sysdeps/ieee754/dbl-64/s_fadd.c
new file mode 100644
index 0000000..5ecb435
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/s_fadd.c
@@ -0,0 +1,34 @@
+/* Add double values, narrowing the result to float.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define f32addf64 __hide_f32addf64
+#define f32addf32x __hide_f32addf32x
+#define faddl __hide_faddl
+#include <math.h>
+#undef f32addf64
+#undef f32addf32x
+#undef faddl
+
+#include <math-narrow.h>
+
+float
+__fadd (double x, double y)
+{
+  NARROW_ADD_ROUND_TO_ODD (x, y, float, union ieee754_double, , mantissa1);
+}
+libm_alias_float_double (add)
diff --git a/sysdeps/ieee754/float128/float128_private.h b/sysdeps/ieee754/float128/float128_private.h
index d0d41c3..eebf19a 100644
--- a/sysdeps/ieee754/float128/float128_private.h
+++ b/sysdeps/ieee754/float128/float128_private.h
@@ -256,6 +256,9 @@
 #define __truncl __truncf128
 #define __x2y2m1l __x2y2m1f128
 
+#define __faddl __f32addf128
+#define __daddl __f64addf128
+
 /* __nexttowardf128 is not _Float128 API. */
 #define __nexttowardl __nexttowardf128_do_not_use
 #define nexttowardl nexttowardf128_do_not_use
diff --git a/sysdeps/ieee754/float128/s_f32addf128.c b/sysdeps/ieee754/float128/s_f32addf128.c
new file mode 100644
index 0000000..e2f8ded
--- /dev/null
+++ b/sysdeps/ieee754/float128/s_f32addf128.c
@@ -0,0 +1,6 @@
+#define f32addf64x __hide_f32addf64x
+#define f32addf128 __hide_f32addf128
+#include <float128_private.h>
+#undef f32addf64x
+#undef f32addf128
+#include "../ldbl-128/s_faddl.c"
diff --git a/sysdeps/ieee754/float128/s_f64addf128.c b/sysdeps/ieee754/float128/s_f64addf128.c
new file mode 100644
index 0000000..c2bb293
--- /dev/null
+++ b/sysdeps/ieee754/float128/s_f64addf128.c
@@ -0,0 +1,10 @@
+#define f32xaddf64x __hide_f32xaddf64x
+#define f32xaddf128 __hide_f32xaddf128
+#define f64addf64x __hide_f64addf64x
+#define f64addf128 __hide_f64addf128
+#include <float128_private.h>
+#undef f32xaddf64x
+#undef f32xaddf128
+#undef f64addf64x
+#undef f64addf128
+#include "../ldbl-128/s_daddl.c"
diff --git a/sysdeps/ieee754/float128/s_f64xaddf128.c b/sysdeps/ieee754/float128/s_f64xaddf128.c
new file mode 100644
index 0000000..c8af0a5
--- /dev/null
+++ b/sysdeps/ieee754/float128/s_f64xaddf128.c
@@ -0,0 +1,2 @@
+#include <float128_private.h>
+#include "../ldbl-128/s_f64xaddf128.c"
diff --git a/sysdeps/ieee754/ldbl-128/s_daddl.c b/sysdeps/ieee754/ldbl-128/s_daddl.c
new file mode 100644
index 0000000..81e8e2d
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128/s_daddl.c
@@ -0,0 +1,37 @@
+/* Add long double (ldbl-128) values, narrowing the result to double.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define f32xaddf64x __hide_f32xaddf64x
+#define f32xaddf128 __hide_f32xaddf128
+#define f64addf64x __hide_f64addf64x
+#define f64addf128 __hide_f64addf128
+#include <math.h>
+#undef f32xaddf64x
+#undef f32xaddf128
+#undef f64addf64x
+#undef f64addf128
+
+#include <math-narrow.h>
+
+double
+__daddl (_Float128 x, _Float128 y)
+{
+  NARROW_ADD_ROUND_TO_ODD (x, y, double, union ieee854_long_double, l,
+			   mantissa3);
+}
+libm_alias_double_ldouble (add)
diff --git a/sysdeps/ieee754/ldbl-128/s_f64xaddf128.c b/sysdeps/ieee754/ldbl-128/s_f64xaddf128.c
new file mode 100644
index 0000000..545c7b9
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128/s_f64xaddf128.c
@@ -0,0 +1,38 @@
+/* Add _Float128 values, converting the result to _Float64x.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <math-narrow.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
+
+_Float64x
+__f64xaddf128 (_Float128 x, _Float128 y)
+{
+#if __HAVE_FLOAT64X_LONG_DOUBLE && __HAVE_DISTINCT_FLOAT128
+  NARROW_ADD_ROUND_TO_ODD (x, y, _Float64x, union ieee854_long_double, l,
+			   mantissa3);
+#else
+  NARROW_ADD_TRIVIAL (x, y, _Float64x);
+#endif
+}
+libm_alias_float64x_float128 (add)
diff --git a/sysdeps/ieee754/ldbl-128/s_faddl.c b/sysdeps/ieee754/ldbl-128/s_faddl.c
new file mode 100644
index 0000000..edbaa21
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128/s_faddl.c
@@ -0,0 +1,33 @@
+/* Add long double (ldbl-128) values, narrowing the result to float.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define f32addf64x __hide_f32addf64x
+#define f32addf128 __hide_f32addf128
+#include <math.h>
+#undef f32addf64x
+#undef f32addf128
+
+#include <math-narrow.h>
+
+float
+__faddl (_Float128 x, _Float128 y)
+{
+  NARROW_ADD_ROUND_TO_ODD (x, y, float, union ieee854_long_double, l,
+			   mantissa3);
+}
+libm_alias_float_ldouble (add)
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_daddl.c b/sysdeps/ieee754/ldbl-128ibm/s_daddl.c
new file mode 100644
index 0000000..28b7e06
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm/s_daddl.c
@@ -0,0 +1,27 @@
+/* Add long double (ldbl-128ibm) values, narrowing the result to double.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <math-narrow.h>
+
+double
+__daddl (long double x, long double y)
+{
+  NARROW_ADD_TRIVIAL (x, y, double);
+}
+libm_alias_double_ldouble (add)
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_faddl.c b/sysdeps/ieee754/ldbl-128ibm/s_faddl.c
new file mode 100644
index 0000000..55a3918
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm/s_faddl.c
@@ -0,0 +1,27 @@
+/* Add long double (ldbl-128ibm) values, narrowing the result to float.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <math-narrow.h>
+
+float
+__faddl (long double x, long double y)
+{
+  NARROW_ADD_TRIVIAL (x, y, float);
+}
+libm_alias_float_ldouble (add)
diff --git a/sysdeps/ieee754/ldbl-96/s_daddl.c b/sysdeps/ieee754/ldbl-96/s_daddl.c
new file mode 100644
index 0000000..d1e3c17
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-96/s_daddl.c
@@ -0,0 +1,33 @@
+/* Add long double (ldbl-96) values, narrowing the result to double.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define f32xaddf64x __hide_f32xaddf64x
+#define f64addf64x __hide_f64addf64x
+#include <math.h>
+#undef f32xaddf64x
+#undef f64addf64x
+
+#include <math-narrow.h>
+
+double
+__daddl (long double x, long double y)
+{
+  NARROW_ADD_ROUND_TO_ODD (x, y, double, union ieee854_long_double, l,
+			   mantissa1);
+}
+libm_alias_double_ldouble (add)
diff --git a/sysdeps/ieee754/ldbl-96/s_faddl.c b/sysdeps/ieee754/ldbl-96/s_faddl.c
new file mode 100644
index 0000000..4164774
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-96/s_faddl.c
@@ -0,0 +1,31 @@
+/* Add long double (ldbl-96) values, narrowing the result to float.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define f32addf64x __hide_f32addf64x
+#include <math.h>
+#undef f32addf64x
+
+#include <math-narrow.h>
+
+float
+__faddl (long double x, long double y)
+{
+  NARROW_ADD_ROUND_TO_ODD (x, y, float, union ieee854_long_double, l,
+			   mantissa1);
+}
+libm_alias_float_ldouble (add)
diff --git a/sysdeps/ieee754/ldbl-opt/Makefile b/sysdeps/ieee754/ldbl-opt/Makefile
index 38afe38..2340e4c 100644
--- a/sysdeps/ieee754/ldbl-opt/Makefile
+++ b/sysdeps/ieee754/ldbl-opt/Makefile
@@ -44,7 +44,7 @@ libnldbl-calls = asprintf dprintf fprintf fscanf fwprintf fwscanf iovfscanf \
 		 isoc99_vwscanf isoc99_vfwscanf isoc99_vswscanf \
 		 nextup nextdown totalorder totalordermag getpayload \
 		 canonicalize setpayload setpayloadsig llogb fmaxmag fminmag \
-		 roundeven fromfp ufromfp fromfpx ufromfpx
+		 roundeven fromfp ufromfp fromfpx ufromfpx fadd dadd
 libnldbl-routines = $(libnldbl-calls:%=nldbl-%)
 libnldbl-inhibit-o = $(object-suffixes)
 libnldbl-static-only-routines = $(libnldbl-routines)
@@ -86,6 +86,7 @@ CFLAGS-nldbl-csinh.c = -fno-builtin-csinhl
 CFLAGS-nldbl-csqrt.c = -fno-builtin-csqrtl
 CFLAGS-nldbl-ctan.c = -fno-builtin-ctanl
 CFLAGS-nldbl-ctanh.c = -fno-builtin-ctanhl
+CFLAGS-nldbl-dadd.c = -fno-builtin-daddl
 CFLAGS-nldbl-erf.c = -fno-builtin-erfl
 CFLAGS-nldbl-erfc.c = -fno-builtin-erfcl
 CFLAGS-nldbl-exp.c = -fno-builtin-expl
@@ -93,6 +94,7 @@ CFLAGS-nldbl-exp10.c = -fno-builtin-exp10l
 CFLAGS-nldbl-exp2.c = -fno-builtin-exp2l
 CFLAGS-nldbl-expm1.c = -fno-builtin-expm1l
 CFLAGS-nldbl-fabs.c = -fno-builtin-fabsl
+CFLAGS-nldbl-fadd.c = -fno-builtin-faddl
 CFLAGS-nldbl-fdim.c = -fno-builtin-fdiml
 CFLAGS-nldbl-finite.c = -fno-builtin-finitel
 CFLAGS-nldbl-floor.c = -fno-builtin-floorl
diff --git a/sysdeps/ieee754/ldbl-opt/Versions b/sysdeps/ieee754/ldbl-opt/Versions
index d3f0bea..e50efa3 100644
--- a/sysdeps/ieee754/ldbl-opt/Versions
+++ b/sysdeps/ieee754/ldbl-opt/Versions
@@ -97,4 +97,10 @@ libm {
     sincosl; tanl; tanhl; truncl; expl; __finitel; __signbitl;
     __fpclassifyl; nexttowardf; nexttoward; __nldbl_nexttowardf;
   }
+  GLIBC_2.28 {
+    # Functions taking long double = double argument and rounding
+    # result to double (same as f32x*f64 functions, but those names
+    # are not reserved in TS 18661-1).
+    __nldbl_daddl;
+  }
 }
diff --git a/sysdeps/ieee754/ldbl-opt/nldbl-compat.h b/sysdeps/ieee754/ldbl-opt/nldbl-compat.h
index d61fbb2..74f0e45 100644
--- a/sysdeps/ieee754/ldbl-opt/nldbl-compat.h
+++ b/sysdeps/ieee754/ldbl-opt/nldbl-compat.h
@@ -101,5 +101,8 @@ extern int __nldbl___obstack_vprintf_chk (struct obstack *, int, const char *,
 					  __gnuc_va_list) __THROW;
 extern void __nldbl___vsyslog_chk (int, int, const char *, va_list);
 
+/* The original declarations of these were hidden by the including
+   file.  */
+extern double __nldbl_daddl (double, double) __THROW;
 
 #endif /* __NLDBL_COMPAT_H */
diff --git a/sysdeps/ieee754/ldbl-opt/nldbl-dadd.c b/sysdeps/ieee754/ldbl-opt/nldbl-dadd.c
new file mode 100644
index 0000000..acbcb3f
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-opt/nldbl-dadd.c
@@ -0,0 +1,28 @@
+/* Compatibility routine for IEEE double as long double for dadd.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define daddl __hide_daddl
+#include "nldbl-compat.h"
+#undef daddl
+
+double
+attribute_hidden
+daddl (double x, double y)
+{
+  return __nldbl_daddl (x, y);
+}
diff --git a/sysdeps/ieee754/ldbl-opt/nldbl-fadd.c b/sysdeps/ieee754/ldbl-opt/nldbl-fadd.c
new file mode 100644
index 0000000..c31a6db
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-opt/nldbl-fadd.c
@@ -0,0 +1,28 @@
+/* Compatibility routine for IEEE double as long double for fadd.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define faddl __hide_faddl
+#include "nldbl-compat.h"
+#undef faddl
+
+float
+attribute_hidden
+faddl (double x, double y)
+{
+  return fadd (x, y);
+}
diff --git a/sysdeps/ieee754/soft-fp/s_daddl.c b/sysdeps/ieee754/soft-fp/s_daddl.c
new file mode 100644
index 0000000..efe3772
--- /dev/null
+++ b/sysdeps/ieee754/soft-fp/s_daddl.c
@@ -0,0 +1,59 @@
+/* Add long double (ldbl-128) values, narrowing the result to double,
+   using soft-fp.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define f32xaddf64x __hide_f32xaddf64x
+#define f32xaddf128 __hide_f32xaddf128
+#define f64addf64x __hide_f64addf64x
+#define f64addf128 __hide_f64addf128
+#include <math.h>
+#undef f32xaddf64x
+#undef f32xaddf128
+#undef f64addf64x
+#undef f64addf128
+
+#include <math-narrow.h>
+#include <soft-fp.h>
+#include <double.h>
+#include <quad.h>
+
+double
+__daddl (_Float128 x, _Float128 y)
+{
+  FP_DECL_EX;
+  FP_DECL_Q (X);
+  FP_DECL_Q (Y);
+  FP_DECL_Q (R);
+  FP_DECL_D (RN);
+  double ret;
+
+  FP_INIT_ROUNDMODE;
+  FP_UNPACK_SEMIRAW_Q (X, x);
+  FP_UNPACK_SEMIRAW_Q (Y, y);
+  FP_ADD_Q (R, X, Y);
+#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
+  FP_TRUNC (D, Q, 2, 4, RN, R);
+#else
+  FP_TRUNC (D, Q, 1, 2, RN, R);
+#endif
+  FP_PACK_SEMIRAW_D (ret, RN);
+  FP_HANDLE_EXCEPTIONS;
+  CHECK_NARROW_ADD (ret, x, y);
+  return ret;
+}
+libm_alias_double_ldouble (add)
diff --git a/sysdeps/ieee754/soft-fp/s_fadd.c b/sysdeps/ieee754/soft-fp/s_fadd.c
new file mode 100644
index 0000000..606e527
--- /dev/null
+++ b/sysdeps/ieee754/soft-fp/s_fadd.c
@@ -0,0 +1,56 @@
+/* Add double values, narrowing the result to float, using soft-fp.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define f32addf64 __hide_f32addf64
+#define f32addf32x __hide_f32addf32x
+#define faddl __hide_faddl
+#include <math.h>
+#undef f32addf64
+#undef f32addf32x
+#undef faddl
+
+#include <math-narrow.h>
+#include <soft-fp.h>
+#include <single.h>
+#include <double.h>
+
+float
+__fadd (double x, double y)
+{
+  FP_DECL_EX;
+  FP_DECL_D (X);
+  FP_DECL_D (Y);
+  FP_DECL_D (R);
+  FP_DECL_S (RN);
+  float ret;
+
+  FP_INIT_ROUNDMODE;
+  FP_UNPACK_SEMIRAW_D (X, x);
+  FP_UNPACK_SEMIRAW_D (Y, y);
+  FP_ADD_D (R, X, Y);
+#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D
+  FP_TRUNC (S, D, 1, 2, RN, R);
+#else
+  FP_TRUNC (S, D, 1, 1, RN, R);
+#endif
+  FP_PACK_SEMIRAW_S (ret, RN);
+  FP_HANDLE_EXCEPTIONS;
+  CHECK_NARROW_ADD (ret, x, y);
+  return ret;
+}
+libm_alias_float_double (add)
diff --git a/sysdeps/ieee754/soft-fp/s_faddl.c b/sysdeps/ieee754/soft-fp/s_faddl.c
new file mode 100644
index 0000000..42c4422
--- /dev/null
+++ b/sysdeps/ieee754/soft-fp/s_faddl.c
@@ -0,0 +1,55 @@
+/* Add long double (ldbl-128) values, narrowing the result to float,
+   using soft-fp.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#define f32addf64x __hide_f32addf64x
+#define f32addf128 __hide_f32addf128
+#include <math.h>
+#undef f32addf64x
+#undef f32addf128
+
+#include <math-narrow.h>
+#include <soft-fp.h>
+#include <single.h>
+#include <quad.h>
+
+float
+__faddl (_Float128 x, _Float128 y)
+{
+  FP_DECL_EX;
+  FP_DECL_Q (X);
+  FP_DECL_Q (Y);
+  FP_DECL_Q (R);
+  FP_DECL_S (RN);
+  float ret;
+
+  FP_INIT_ROUNDMODE;
+  FP_UNPACK_SEMIRAW_Q (X, x);
+  FP_UNPACK_SEMIRAW_Q (Y, y);
+  FP_ADD_Q (R, X, Y);
+#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
+  FP_TRUNC (S, Q, 1, 4, RN, R);
+#else
+  FP_TRUNC (S, Q, 1, 2, RN, R);
+#endif
+  FP_PACK_SEMIRAW_S (ret, RN);
+  FP_HANDLE_EXCEPTIONS;
+  CHECK_NARROW_ADD (ret, x, y);
+  return ret;
+}
+libm_alias_float_ldouble (add)
diff --git a/sysdeps/mach/hurd/i386/libm.abilist b/sysdeps/mach/hurd/i386/libm.abilist
index 3deda08..71fc544 100644
--- a/sysdeps/mach/hurd/i386/libm.abilist
+++ b/sysdeps/mach/hurd/i386/libm.abilist
@@ -1024,4 +1024,18 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/powerpc/fpu/libm-test-ulps b/sysdeps/powerpc/fpu/libm-test-ulps
index 5309a4a..c10b2f8 100644
--- a/sysdeps/powerpc/fpu/libm-test-ulps
+++ b/sysdeps/powerpc/fpu/libm-test-ulps
@@ -79,6 +79,10 @@ ifloat128: 2
 ildouble: 3
 ldouble: 4
 
+Function: "add_ldouble":
+double: 1
+float: 1
+
 Function: "asin":
 float: 1
 float128: 1
diff --git a/sysdeps/unix/sysv/linux/aarch64/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
index 7caff9b..dbb5326 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
@@ -986,3 +986,17 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
diff --git a/sysdeps/unix/sysv/linux/alpha/libm.abilist b/sysdeps/unix/sysv/linux/alpha/libm.abilist
index 19305d9..00a7b8d 100644
--- a/sysdeps/unix/sysv/linux/alpha/libm.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libm.abilist
@@ -996,6 +996,21 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 __nldbl_daddl F
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.3.4 GLIBC_2.3.4 A
 GLIBC_2.3.4 __c1_cabsf F
 GLIBC_2.3.4 __c1_cacosf F
diff --git a/sysdeps/unix/sysv/linux/arm/libm.abilist b/sysdeps/unix/sysv/linux/arm/libm.abilist
index 613df71..67ed656 100644
--- a/sysdeps/unix/sysv/linux/arm/libm.abilist
+++ b/sysdeps/unix/sysv/linux/arm/libm.abilist
@@ -435,6 +435,13 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 _LIB_VERSION D 0x4
 GLIBC_2.4 __clog10 F
diff --git a/sysdeps/unix/sysv/linux/hppa/libm.abilist b/sysdeps/unix/sysv/linux/hppa/libm.abilist
index 8496fa6..4cd41e3 100644
--- a/sysdeps/unix/sysv/linux/hppa/libm.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libm.abilist
@@ -747,5 +747,12 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 exp2l F
diff --git a/sysdeps/unix/sysv/linux/i386/libm.abilist b/sysdeps/unix/sysv/linux/i386/libm.abilist
index 9ef6fc6..b9aa407 100644
--- a/sysdeps/unix/sysv/linux/i386/libm.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libm.abilist
@@ -1033,4 +1033,18 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/ia64/libm.abilist b/sysdeps/unix/sysv/linux/ia64/libm.abilist
index 9de4325..a7981b8 100644
--- a/sysdeps/unix/sysv/linux/ia64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libm.abilist
@@ -962,4 +962,18 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
index 613df71..67ed656 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
@@ -435,6 +435,13 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 _LIB_VERSION D 0x4
 GLIBC_2.4 __clog10 F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
index b72723a..e833cdb 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
@@ -789,4 +789,11 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/microblaze/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
index 8c04695..3d779cb 100644
--- a/sysdeps/unix/sysv/linux/microblaze/libm.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
@@ -746,3 +746,10 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
index b15ddf8..6b86a2d 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
@@ -748,6 +748,13 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 exp2l F
 _gp_disp _gp_disp A
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
index 3ab51cb..137e5f1 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
@@ -988,4 +988,18 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/nios2/libm.abilist b/sysdeps/unix/sysv/linux/nios2/libm.abilist
index 2c47b2b..736c70f 100644
--- a/sysdeps/unix/sysv/linux/nios2/libm.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libm.abilist
@@ -746,3 +746,10 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
index d3baaf7..ea84f1e 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
@@ -791,6 +791,14 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 __nldbl_daddl F
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
index 7c6467c..ee2593c 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
@@ -790,6 +790,14 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 __nldbl_daddl F
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
index 9b6fffb..075f026 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
@@ -1027,3 +1027,18 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 __nldbl_daddl F
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
index 9443bd9..9e6c7d3 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
@@ -466,6 +466,14 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 __nldbl_daddl F
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 _LIB_VERSION D 0x4
 GLIBC_2.3 __clog10 F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist
index 971af52..9a6bcb1 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist
@@ -968,3 +968,17 @@ GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
 GLIBC_2.27 ynl F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
index af68d0c..7b1854d 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
@@ -986,6 +986,21 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 __nldbl_daddl F
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
index 430c5ae..24b4c21 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
@@ -984,6 +984,21 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 __nldbl_daddl F
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/sh/libm.abilist b/sysdeps/unix/sysv/linux/sh/libm.abilist
index 7e48be9..011c2df 100644
--- a/sysdeps/unix/sysv/linux/sh/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sh/libm.abilist
@@ -747,5 +747,12 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 exp2l F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
index 9d25c07..fdc125a 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
@@ -993,6 +993,21 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 __nldbl_daddl F
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
index 1311767..1fc848a 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
@@ -987,4 +987,18 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist b/sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist
index 6b375f5..a7c37e2 100644
--- a/sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist
@@ -747,3 +747,10 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
diff --git a/sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist b/sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist
index 6b375f5..a7c37e2 100644
--- a/sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist
@@ -747,3 +747,10 @@ GLIBC_2.27 y1f64 F
 GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
index fc1c601..0d8c448 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
@@ -1022,4 +1022,18 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
index 75ef25f..e7f368e 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
@@ -1021,3 +1021,17 @@ GLIBC_2.27 ynf32 F
 GLIBC_2.27 ynf32x F
 GLIBC_2.27 ynf64 F
 GLIBC_2.27 ynf64x F
+GLIBC_2.28 GLIBC_2.28 A
+GLIBC_2.28 daddl F
+GLIBC_2.28 f32addf128 F
+GLIBC_2.28 f32addf32x F
+GLIBC_2.28 f32addf64 F
+GLIBC_2.28 f32addf64x F
+GLIBC_2.28 f32xaddf128 F
+GLIBC_2.28 f32xaddf64 F
+GLIBC_2.28 f32xaddf64x F
+GLIBC_2.28 f64addf128 F
+GLIBC_2.28 f64addf64x F
+GLIBC_2.28 f64xaddf128 F
+GLIBC_2.28 fadd F
+GLIBC_2.28 faddl F
