Merge branch 't/tls' into refs/top-bases/t/tls-threadvar

1 files changed, 47 insertions, 0 deletions

diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c
new file mode 100644
index 0000000000..919b5de03a
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c
@@ -0,0 +1,47 @@
+/* Multiple versions of llrintf.
+   Copyright (C) 2017-2018 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/>.  */
+/* Redefine lrintf/__lrintf so that the compiler won't complain about the type
+   mismatch with the IFUNC selector in strong_alias below.  */
+#define lrintf __hidden_lrintf
+#define __lrintf __hidden___lrintf
+
+#include <math.h>
+#undef lrintf
+#undef __lrintf
+#include "init-arch.h"
+#include <libm-alias-float.h>
+
+extern __typeof (__llrintf) __llrint_ppc64 attribute_hidden;
+extern __typeof (__llrintf) __llrint_power6x attribute_hidden;
+extern __typeof (__llrintf) __llrint_power8 attribute_hidden;
+
+/* The ppc64 ABI passes float and double parameters in 64bit floating point
+   registers (at least up to a point) as IEEE binary64 format, so effectively
+   of "double" type.  Both l[l]rint and l[l]rintf return long type.  So these
+   functions have identical signatures and functionality, and can use a
+   single implementation.  */
+libc_ifunc (__llrintf,
+	    (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+	    ? __llrint_power8 :
+	    (hwcap & PPC_FEATURE_POWER6_EXT)
+	    ? __llrint_power6x
+	    : __llrint_ppc64);
+
+libm_alias_float (__llrint, llrint)
+strong_alias (__llrintf, __lrintf)
+libm_alias_float (__lrint, lrint)