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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
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')
-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)