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authorUlrich Drepper <drepper@redhat.com>1999-01-29 10:58:02 +0000
committerUlrich Drepper <drepper@redhat.com>1999-01-29 10:58:02 +0000
commitd51913e933e4a323fcafbac9b054c0addb7a201e (patch)
treedd14ac7cbf641bdbbed049be25cfc6232c98870c /sysdeps/alpha/fpu
parentbaa9f3f31ea57a9e46a487a2a113eb5da4705f62 (diff)
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Update.
	* sysdeps/alpha/fpu/s_floor.c (__floor): Don't depend on inlining,
	duplicate the code.
	* sysdeps/alpha/fpu/s_floorf.c (__floorf): Likewise.
Diffstat (limited to 'sysdeps/alpha/fpu')
-rw-r--r--sysdeps/alpha/fpu/s_floor.c17
-rw-r--r--sysdeps/alpha/fpu/s_floorf.c24
2 files changed, 37 insertions, 4 deletions
diff --git a/sysdeps/alpha/fpu/s_floor.c b/sysdeps/alpha/fpu/s_floor.c
index 7b647923e2..c7e14662fe 100644
--- a/sysdeps/alpha/fpu/s_floor.c
+++ b/sysdeps/alpha/fpu/s_floor.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson.
 
@@ -29,7 +29,20 @@
 double
 __floor (double x)
 {
-  return __i_floor(x);
+  if (x != 0 && fabs (x) < 9007199254740992.0)  /* 1 << DBL_MANT_DIG */
+    {
+      double __tmp1;
+      __asm (
+#ifdef _IEEE_FP_INEXACT
+	     "cvttq/svim %2,%1\n\t"
+#else
+	     "cvttq/svm %2,%1\n\t"
+#endif
+	     "cvtqt/m %1,%0\n\t"
+	     : "=f"(x), "=&f"(__tmp1)
+	     : "f"(x));
+    }
+  return x;
 }
 
 weak_alias (__floor, floor)
diff --git a/sysdeps/alpha/fpu/s_floorf.c b/sysdeps/alpha/fpu/s_floorf.c
index d25643d19e..7502b6781e 100644
--- a/sysdeps/alpha/fpu/s_floorf.c
+++ b/sysdeps/alpha/fpu/s_floorf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson.
 
@@ -29,7 +29,27 @@
 float
 __floorf (float x)
 {
-  return __i_floorf(x);
+  /* Check not zero since floor(-0) == -0.  */
+  if (x != 0 && fabsf (x) < 16777216.0f)  /* 1 << FLT_MANT_DIG */
+    {
+      /* Note that Alpha S_Floating is stored in registers in a
+	 restricted T_Floating format, so we don't even need to
+	 convert back to S_Floating in the end.  The initial
+	 conversion to T_Floating is needed to handle denormals.  */
+
+      float __tmp1, __tmp2;
+
+      __asm ("cvtst/s %3,%2\n\t"
+#ifdef _IEEE_FP_INEXACT
+	     "cvttq/svim %2,%1\n\t"
+#else
+	     "cvttq/svm %2,%1\n\t"
+#endif
+	     "cvtqt/m %1,%0\n\t"
+	     : "=f"(x), "=&f"(__tmp1), "=&f"(__tmp2)
+	     : "f"(x));
+    }
+  return x;
 }
 
 weak_alias (__floorf, floorf)