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-rw-r--r--sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c46
1 files changed, 46 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..330fe965a6
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c
@@ -0,0 +1,46 @@
+/* Multiple versions of llrintf.
+ Copyright (C) 2017 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"
+
+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);
+
+weak_alias (__llrintf, llrintf)
+strong_alias (__llrintf, __lrintf)
+weak_alias (__lrintf, lrintf)