1 files changed, 54 insertions, 0 deletions
diff --git a/contrib/gcc/config/sparc/crtfastmath.c b/contrib/gcc/config/sparc/crtfastmath.c
new file mode 100644
index 000000000000..df3f907bb336
--- /dev/null
+++ b/contrib/gcc/config/sparc/crtfastmath.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2001 Free Software Foundation, Inc.
+ * Contributed by David S. Miller (davem@redhat.com)
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ * 
+ * In addition to the permissions in the GNU General Public License, the
+ * Free Software Foundation gives you unlimited permission to link the
+ * compiled version of this file with other programs, and to distribute
+ * those programs without any restriction coming from the use of this
+ * file.  (The General Public License restrictions do apply in other
+ * respects; for example, they cover modification of the file, and
+ * distribution when not linked into another program.)
+ * 
+ * This file 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
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ * 
+ *    As a special exception, if you link this library with files
+ *    compiled with GCC to produce an executable, this does not cause
+ *    the resulting executable to be covered by the GNU General Public License.
+ *    This exception does not however invalidate any other reasons why
+ *    the executable file might be covered by the GNU General Public License.
+ */
+
+#define FPRS_NS		(1 << 22)	/* Non-Standard fpu results */
+
+static void __attribute__((constructor))
+set_fast_math (void)
+{
+  unsigned int fsr;
+
+  /* This works for the 64-bit case because, even if 32-bit ld/st of
+     the fsr register modified the upper 32-bit, the only thing up there
+     are the 3 other condition codes which are "do not care" at the time
+     that this runs.  */
+
+  __asm__("st %%fsr, %0"
+	  : "=m" (fsr));
+
+  fsr |= FPRS_NS;
+
+  __asm__("ld %0, %%fsr"
+	  : : "m" (fsr));
+}