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PR 19700 testcase. 

From-SVN: r94443
This commit is contained in:
Richard Henderson 2005-01-30 09:55:12 -08:00
parent b99d6d2b80
commit ebd5631751
1 changed files with 40 additions and 0 deletions
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gcc/testsuite/gcc.c-torture/execute/ieee/copysign2.c Normal file
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#include <string.h>
#include <stdlib.h>
#define TEST(TYPE, EXT) \
static TYPE Y##EXT[] = { \
2.0, -2.0, -2.0, -2.0, -2.0, 2.0, -0.0, __builtin_inf##EXT () \
}; \
static const TYPE Z##EXT[] = { \
1.0, -1.0, -1.0, -0.0, -0.0, 0.0, -__builtin_inf##EXT (), \
__builtin_nan##EXT ("") \
}; \
\
void test##EXT (void) \
{ \
TYPE r[8]; \
/* Make sure to avoid comparing unused bits in the type. */ \
memset (r, 0, sizeof r); \
r[0] = __builtin_copysign##EXT (1.0, Y##EXT[0]); \
r[1] = __builtin_copysign##EXT (1.0, Y##EXT[1]); \
r[2] = __builtin_copysign##EXT (-1.0, Y##EXT[2]); \
r[3] = __builtin_copysign##EXT (0.0, Y##EXT[3]); \
r[4] = __builtin_copysign##EXT (-0.0, Y##EXT[4]); \
r[5] = __builtin_copysign##EXT (-0.0, Y##EXT[5]); \
r[6] = __builtin_copysign##EXT (__builtin_inf##EXT (), Y##EXT[6]); \
r[7] = __builtin_copysign##EXT (-__builtin_nan##EXT (""), Y##EXT[7]); \
if (memcmp (r, Z##EXT, sizeof r) != 0) \
abort (); \
}
TEST(float, f)
TEST(double, )
TEST(long double, l)
int main()
{
testf();
test();
testl();
return 0;
}