Viewing file:  neg_1.c (1.07 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O2 -fno-inline --save-temps" } */
extern void abort (void);
long long
neg64 (long long a)
{
/* { dg-final { scan-assembler "neg\tx\[0-9\]+" } } */
return 0 - a;
}
long long
neg64_in_dreg (long long a)
{
/* { dg-final { scan-assembler "neg\td\[0-9\]+, d\[0-9\]+" } } */
register long long x asm ("d8") = a;
register long long y asm ("d9");
asm volatile ("" : : "w" (x));
y = 0 - x;
asm volatile ("" : : "w" (y));
return y;
}
int
neg32 (int a)
{
/* { dg-final { scan-assembler "neg\tw\[0-9\]+" } } */
return 0 - a;
}
int
neg32_in_sreg (int a)
{
/* { dg-final { scan-assembler "neg\tv\[0-9\]+\.2s, v\[0-9\]+\.2s" } } */
register int x asm ("s8") = a;
register int y asm ("s9");
asm volatile ("" : : "w" (x));
y = 0 - x;
asm volatile ("" : : "w" (y));
return y;
}
int
main (void)
{
long long a;
int b;
a = 61;
b = 313;
if (neg64 (a) != -61)
abort ();
if (neg64_in_dreg (a) != -61)
abort ();
if (neg32 (b) != -313)
abort ();
if (neg32_in_sreg (b) != -313)
abort ();
return 0;
}
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