diff --git a/sysdeps/s390/fpu/s_trunc.c b/sysdeps/s390/fpu/s_trunc.c
new file mode 100644
index 0000000000..7744843a91
--- /dev/null
+++ b/sysdeps/s390/fpu/s_trunc.c
@@ -0,0 +1,39 @@
+/* trunc() - S390 version.
+ Copyright (C) 2019 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
+ . */
+
+#ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
+# define NO_MATH_REDIRECT
+# include
+# include
+
+double
+__trunc (double x)
+{
+ double y;
+ /* The z196 zarch "load fp integer" (fidbra) instruction is rounding
+ x to the nearest integer with "round towards zero" rounding mode
+ (M3-field: 5) where inexact exceptions are suppressed (M4-field: 4). */
+ __asm__ ("fidbra %0,5,%1,4" : "=f" (y) : "f" (x));
+ return y;
+}
+libm_alias_double (__trunc, trunc)
+
+#else
+# include
+#endif
diff --git a/sysdeps/s390/fpu/s_truncf.c b/sysdeps/s390/fpu/s_truncf.c
new file mode 100644
index 0000000000..40c126eef2
--- /dev/null
+++ b/sysdeps/s390/fpu/s_truncf.c
@@ -0,0 +1,39 @@
+/* truncf() - S390 version.
+ Copyright (C) 2019 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
+ . */
+
+#ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
+# define NO_MATH_REDIRECT
+# include
+# include
+
+float
+__truncf (float x)
+{
+ float y;
+ /* The z196 zarch "load fp integer" (fiebra) instruction is rounding
+ x to the nearest integer with "round towards zero" rounding mode
+ (M3-field: 5) where inexact exceptions are suppressed (M4-field: 4). */
+ __asm__ ("fiebra %0,5,%1,4" : "=f" (y) : "f" (x));
+ return y;
+}
+libm_alias_float (__trunc, trunc)
+
+#else
+# include
+#endif
diff --git a/sysdeps/s390/fpu/s_truncl.c b/sysdeps/s390/fpu/s_truncl.c
new file mode 100644
index 0000000000..68de3ea6bc
--- /dev/null
+++ b/sysdeps/s390/fpu/s_truncl.c
@@ -0,0 +1,40 @@
+/* truncl() - S390 version.
+ Copyright (C) 2019 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
+ . */
+
+#ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
+# define NO_MATH_REDIRECT
+# include
+# include
+# include
+
+_Float128
+__truncl (_Float128 x)
+{
+ _Float128 y;
+ /* The z196 zarch "load fp integer" (fixbra) instruction is rounding
+ x to the nearest integer with "round towards zero" rounding mode
+ (M3-field: 5) where inexact exceptions are suppressed (M4-field: 4). */
+ __asm__ ("fixbra %0,5,%1,4" : "=f" (y) : "f" (x));
+ return y;
+}
+libm_alias_ldouble (__trunc, trunc)
+
+#else
+# include
+#endif