Implement accurate fma.

4 files changed, 71 insertions, 0 deletions

diff --git a/sysdeps/powerpc/fpu/s_fma.S b/sysdeps/powerpc/fpu/s_fma.S
new file mode 100644
index 0000000000..9c650eab07
--- /dev/null
+++ b/sysdeps/powerpc/fpu/s_fma.S
@@ -0,0 +1,33 @@
+/* Compute x * y + z as ternary operation.  PowerPC version.
+   Copyright (C) 2010 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+ENTRY(__fma)
+/* double [f1] fma (double [f1] x, double [f2] y, double [f3] z); */
+	fmadd	fp1,fp1,fp2,fp3
+	blr
+END(__fma)
+
+weak_alias (__fma,fma)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias (__fma,__fmal)
+weak_alias (__fma,fmal)
+#endif
diff --git a/sysdeps/powerpc/fpu/s_fmaf.S b/sysdeps/powerpc/fpu/s_fmaf.S
new file mode 100644
index 0000000000..1a755fe2db
--- /dev/null
+++ b/sysdeps/powerpc/fpu/s_fmaf.S
@@ -0,0 +1,28 @@
+/* Compute x * y + z as ternary operation.  PowerPC version.
+   Copyright (C) 2010 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+ENTRY(__fmaf)
+/* float [f1] fmaf (float [f1] x, float [f2] y, float [f3] z); */
+	fmadds	fp1,fp1,fp2,fp3
+	blr
+END(__fmaf)
+
+weak_alias (__fmaf,fmaf)
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_fma.S b/sysdeps/powerpc/powerpc32/fpu/s_fma.S
new file mode 100644
index 0000000000..d40695c633
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/fpu/s_fma.S
@@ -0,0 +1,5 @@
+#include <math_ldbl_opt.h>
+#include <sysdeps/powerpc/fpu/s_fma.S>
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __fma, fmal, GLIBC_2_1)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_fma.S b/sysdeps/powerpc/powerpc64/fpu/s_fma.S
new file mode 100644
index 0000000000..d40695c633
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_fma.S
@@ -0,0 +1,5 @@
+#include <math_ldbl_opt.h>
+#include <sysdeps/powerpc/fpu/s_fma.S>
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __fma, fmal, GLIBC_2_1)
+#endif