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/* { dg-do compile } */
/* { dg-options "-Ofast -fdump-tree-vrp1-details" } */
typedef unsigned short u16;
typedef unsigned char u8;
typedef unsigned int u32;
#define NNN 10
u32 f[NNN], t[NNN];
static u16
Calc_crc8 (u8 data, u16 crc)
{
u8 i=0,x16=0,carry=0;
for (i = 0; i < 8; i++)
{
x16 = (u8)((data & 1) ^ ((u8)crc & 1));
data >>= 1;
if (x16 == 1)
{
crc ^= 0x4002;
carry = 1;
}
else
carry = 0;
crc >>= 1;
if (carry)
crc |= 0x8000;
else
crc &= 0x7fff;
}
return crc;
}
int
main (int argc, char argv[])
{
int i, j; u16 crc;
for (j = 0; j < 10000000; j++)
{
for (i = 0; i < NNN; i++)
{
f[i] = random(i);
t[i] = random(NNN - i - 1);
}
for (i=0; i<NNN; i++)
{
crc=Calc_crc8(f[i],(u16)argc);
crc=Calc_crc8(t[i],crc);
}
}
return crc;
}
/* { dg-final { scan-tree-dump "Cancelling" "vrp1" } } */
/* { dg-final { cleanup-tree-dump "vrp1" } } */
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