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authorManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-26 16:48:15 +0100
committerManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-26 16:48:15 +0100
commit5f2b09982312c98863eb9a8dfe2c608b81f58259 (patch)
treee5d38581c2f36e1cca02efedd2d85044d77f76f9 /tests/test-isnanl.h
parent3e0814cd9862b89c7a39672672937477bd87ddfb (diff)
Imported Upstream version 0.9.6upstream/0.9.6
Diffstat (limited to 'tests/test-isnanl.h')
-rw-r--r--tests/test-isnanl.h57
1 files changed, 23 insertions, 34 deletions
diff --git a/tests/test-isnanl.h b/tests/test-isnanl.h
index 1665cf41..2e65afae 100644
--- a/tests/test-isnanl.h
+++ b/tests/test-isnanl.h
@@ -1,5 +1,5 @@
/* Test of isnanl() substitute.
- Copyright (C) 2007-2010 Free Software Foundation, Inc.
+ Copyright (C) 2007-2015 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -19,25 +19,11 @@
#include <float.h>
#include <limits.h>
+#include "minus-zero.h"
+#include "infinity.h"
#include "nan.h"
#include "macros.h"
-/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
- So we use minus_zero instead.
- IRIX cc can't put -0.0L into .data, but can compute at runtime.
- Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
- platforms, such as when cross-compiling to PowerPC on MacOS X 10.5. */
-#if defined __hpux || defined __sgi
-static long double
-compute_minus_zero (void)
-{
- return -LDBL_MIN * LDBL_MIN;
-}
-# define minus_zero compute_minus_zero ()
-#else
-long double minus_zero = -0.0L;
-#endif
-
int
main ()
{
@@ -54,10 +40,10 @@ main ()
ASSERT (!isnanl (-2.718e30L));
ASSERT (!isnanl (-2.718e-30L));
ASSERT (!isnanl (0.0L));
- ASSERT (!isnanl (minus_zero));
+ ASSERT (!isnanl (minus_zerol));
/* Infinite values. */
- ASSERT (!isnanl (1.0L / 0.0L));
- ASSERT (!isnanl (-1.0L / 0.0L));
+ ASSERT (!isnanl (Infinityl ()));
+ ASSERT (!isnanl (- Infinityl ()));
/* Quiet NaN. */
ASSERT (isnanl (NaNl ()));
@@ -65,6 +51,15 @@ main ()
/* A bit pattern that is different from a Quiet NaN. With a bit of luck,
it's a Signalling NaN. */
{
+#if defined __powerpc__ && LDBL_MANT_DIG == 106
+ /* This is PowerPC "double double", a pair of two doubles. Inf and Nan are
+ represented as the corresponding 64-bit IEEE values in the first double;
+ the second is ignored. Manipulate only the first double. */
+ #undef NWORDS
+ #define NWORDS \
+ ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
+#endif
+
memory_long_double m;
m.value = NaNl ();
# if LDBL_EXPBIT0_BIT > 0
@@ -79,13 +74,13 @@ main ()
}
#endif
-#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
/* Representation of an 80-bit 'long double' as an initializer for a sequence
of 'unsigned int' words. */
# ifdef WORDS_BIGENDIAN
# define LDBL80_WORDS(exponent,manthi,mantlo) \
{ ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
- ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \
+ ((unsigned int) (manthi) << 16) | ((unsigned int) (mantlo) >> 16), \
(unsigned int) (mantlo) << 16 \
}
# else
@@ -103,37 +98,31 @@ main ()
{ LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
ASSERT (isnanl (x.value));
}
- /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
- Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
- Intel IA-64 Architecture Software Developer's Manual, Volume 1:
- Application Architecture.
- Table 5-2 "Floating-Point Register Encodings"
- Figure 5-6 "Memory to Floating-Point Register Data Translation"
- */
+ /* isnanl should return something for noncanonical values. */
{ /* Pseudo-NaN. */
static memory_long_double x =
{ LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
- ASSERT (isnanl (x.value));
+ ASSERT (isnanl (x.value) || !isnanl (x.value));
}
{ /* Pseudo-Infinity. */
static memory_long_double x =
{ LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
- ASSERT (isnanl (x.value));
+ ASSERT (isnanl (x.value) || !isnanl (x.value));
}
{ /* Pseudo-Zero. */
static memory_long_double x =
{ LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
- ASSERT (isnanl (x.value));
+ ASSERT (isnanl (x.value) || !isnanl (x.value));
}
{ /* Unnormalized number. */
static memory_long_double x =
{ LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
- ASSERT (isnanl (x.value));
+ ASSERT (isnanl (x.value) || !isnanl (x.value));
}
{ /* Pseudo-Denormal. */
static memory_long_double x =
{ LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
- ASSERT (isnanl (x.value));
+ ASSERT (isnanl (x.value) || !isnanl (x.value));
}
#endif