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authorAndreas Jaeger <aj@suse.de>2002-09-10 11:23:00 +0000
committerAndreas Jaeger <aj@suse.de>2002-09-10 11:23:00 +0000
commit9f70d804bffbaf8db95a99ec238c6797d6ea65a0 (patch)
tree5764c01d573c6683502f12d2670d519357578c73 /sysdeps/mips/fpu
parent76f2646f3dbe45d3ed53a0c73fa52f1595306b35 (diff)
downloadglibc-9f70d804bffbaf8db95a99ec238c6797d6ea65a0.tar.gz
MIPS specific optimizations.
Diffstat (limited to 'sysdeps/mips/fpu')
-rw-r--r--sysdeps/mips/fpu/e_sqrt.c38
-rw-r--r--sysdeps/mips/fpu/e_sqrtf.c39
-rw-r--r--sysdeps/mips/fpu/fsetexcptflg.c43
3 files changed, 120 insertions, 0 deletions
diff --git a/sysdeps/mips/fpu/e_sqrt.c b/sysdeps/mips/fpu/e_sqrt.c
new file mode 100644
index 0000000000..5449710aff
--- /dev/null
+++ b/sysdeps/mips/fpu/e_sqrt.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Hartvig Ekner <hartvige@mips.com>, 2002.
+
+ 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 <sgidefs.h>
+
+
+#if (_MIPS_ISA >= _MIPS_ISA_MIPS2)
+
+double
+__ieee754_sqrt (double x)
+{
+ double z;
+ __asm__ ("sqrt.d %0,%1" : "=f" (z) : "f" (x));
+ return z;
+}
+
+#else
+
+#include <sysdeps/ieee754/dbl-64/e_sqrt.c>
+
+#endif
diff --git a/sysdeps/mips/fpu/e_sqrtf.c b/sysdeps/mips/fpu/e_sqrtf.c
new file mode 100644
index 0000000000..3590ad46d5
--- /dev/null
+++ b/sysdeps/mips/fpu/e_sqrtf.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Hartvig Ekner <hartvige@mips.com>, 2002.
+
+ 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 <sgidefs.h>
+
+
+#if (_MIPS_ISA >= _MIPS_ISA_MIPS2)
+
+float
+__ieee754_sqrtf (float x)
+{
+ float z;
+ __asm__ ("sqrt.s %0,%1" : "=f" (z) : "f" (x));
+ return z;
+}
+
+#else
+
+#include <sysdeps/ieee754/flt-32/e_sqrtf.c>
+
+#endif
+
diff --git a/sysdeps/mips/fpu/fsetexcptflg.c b/sysdeps/mips/fpu/fsetexcptflg.c
new file mode 100644
index 0000000000..c65d793178
--- /dev/null
+++ b/sysdeps/mips/fpu/fsetexcptflg.c
@@ -0,0 +1,43 @@
+/* Set floating-point environment exception handling.
+ Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Hartvig Ekner <hartvige@mips.com>, 2002.
+
+ 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 <fenv.h>
+#include <fpu_control.h>
+
+int
+fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+ fexcept_t temp;
+
+ /* Get the current exceptions. */
+ _FPU_GETCW (temp);
+
+ /* Make sure the flags we want restored are legal. */
+ excepts &= FE_ALL_EXCEPT;
+
+ /* Now clear the bits called for, and copy them in from flagp. Note that
+ we ignore all non-flag bits from *flagp, so they don't matter. */
+ temp = (temp & ~excepts) | (*flagp & excepts);
+
+ _FPU_SETCW (temp);
+
+ /* Success. */
+ return 0;
+}