Viewing file:  test_fpscr_drn_builtin.c (2.48 KB) -rw-r--r--
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/* { dg-do run { target { powerpc*-*-* && lp64 } } } */
/* { dg-require-effective-target hard_dfp } */
/* { dg-options "-O2 -std=c99" } */
#ifdef DEBUG
#include <stdio.h>
#endif
#define DRN_MASK 0x700000000LL /* DRN field mask */
void abort (void);
int main ()
{
int i;
int val, bit;
double fpscr_val;
union blah {
double d;
unsigned long long ll;
} conv_val;
unsigned long long ll_value;
register double f14;
/* __builtin_set_fpscr_drn() builtin can take a const or a variable
value between 0 and 7 as the argument.
*/
/* Test builtin decimal float rounding mode with const argument. */
__builtin_set_fpscr_drn(7);
conv_val.d = __builtin_mffs();
ll_value = conv_val.ll & DRN_MASK;
if (ll_value != 0x700000000)
{
#ifdef DEBUG
printf("ERROR, __builtin_set_fpscr_drn(7) did not set rounding mode to 7.\n");
#else
abort();
#endif
}
__builtin_set_fpscr_drn(2);
conv_val.d = __builtin_mffs();
ll_value = conv_val.ll & DRN_MASK;
if (ll_value != 0x200000000)
{
#ifdef DEBUG
printf("ERROR, __builtin_set_fpscr_drn(2) did not set rounding mode to 2.\n");
#else
abort();
#endif
}
__builtin_set_fpscr_drn(5);
conv_val.d = __builtin_mffs();
ll_value = conv_val.ll & DRN_MASK;
if (ll_value != 0x500000000)
{
#ifdef DEBUG
printf("ERROR, __builtin_set_fpscr_drn(5) did not set rounding mode to 5.\n");
#else
abort();
#endif
}
/* Test builtin decimal float rounding mode with variable as argument. */
val = 7;
__builtin_set_fpscr_drn(val);
conv_val.d = __builtin_mffs();
ll_value = conv_val.ll & DRN_MASK;
if (ll_value != ((unsigned long long)val << 32))
{
#ifdef DEBUG
printf("ERROR, __builtin_set_fpscr_drn(val=%d) did not set rounding mode to %d.\n",
val, val);
#else
abort();
#endif
}
val = 0;
__builtin_set_fpscr_drn(val);
conv_val.d = __builtin_mffs();
ll_value = conv_val.ll & DRN_MASK;
if (ll_value != ((unsigned long long)val << 32))
{
#ifdef DEBUG
printf("ERROR, __builtin_set_fpscr_drn(val=%d) did not set rounding mode to %d.\n",
val, val);
#else
abort();
#endif
}
val = 2;
__builtin_set_fpscr_drn(val);
conv_val.d = __builtin_mffs();
ll_value = conv_val.ll & DRN_MASK;
if (ll_value != ((unsigned long long)val << 32))
{
#ifdef DEBUG
printf("ERROR, __builtin_set_fpscr_drn(val=%d) did not set rounding mode to %d.\n",
val, val);
#else
abort();
#endif
}
}
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