Viewing file:  20100825-1_0.c (1.53 KB) -rw-r--r--
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/* { dg-lto-do link } */
/* { dg-lto-options { { -O3 -flto } } } */
typedef unsigned int UINT32;
typedef unsigned long long UINT64;
typedef struct { UINT64 w[2]; } UINT128;
void _bid_to_dpd128 (UINT128 *, UINT128 *);
static const int short_recip_scale[] = {
1,
65 - 64,
69 - 64,
71 - 64,
75 - 64,
78 - 64,
81 - 64,
85 - 64,
88 - 64,
91 - 64,
95 - 64,
98 - 64,
101 - 64,
105 - 64,
108 - 64,
111 - 64,
115 - 64,
118 - 64
};
void _bid_to_dpd128 (UINT128 *, UINT128 *);
void
_bid_to_dpd128 (UINT128 *pres, UINT128 *px) {
UINT128 res;
unsigned int comb;
UINT128 bcoeff;
UINT128 BH;
UINT64 BL, d109;
unsigned int amount;
UINT128 x = *px;
comb = (x.w[1] ) >> 46;
if ((comb & 0x1e000) == 0x1e000) {
res = x;
} else {
bcoeff.w[1] = (x.w[1] & 0x0001ffffffffffffull);
bcoeff.w[0] = x.w[0];
amount = 9;
BH.w[0] = (BH.w[0] >> amount) | (BH.w[1] << (64 - amount));
BL = bcoeff.w[0] - BH.w[0] * 1000000000000000000ull;
d109 = 0x3333333333333334ull;
{ UINT64 CXH, CXL, CYH,CYL,PL,PH,PM,PM2; CXH = (BH.w[0]) >> 32; CXL = (UINT32)(BH.w[0]); CYH = (d109) >> 32; CYL = (UINT32)(d109); PM = CXH*CYL; PH = CXH*CYH; PL = CXL*CYL; PM2 = CXL*CYH; PH += (PM>>32); PM = (UINT64)((UINT32)PM)+PM2+(PL>>32); };
{ UINT64 CXH, CXL, CYH,CYL,PL,PH,PM,PM2; CXH = (BL) >> 32; CXL = (UINT32)(BL); CYH = (d109) >> 32; CYL = (UINT32)(d109); PM = CXH*CYL; PH = CXH*CYH; PL = CXL*CYL; PM2 = CXL*CYH; PH += (PM>>32); PM = (UINT64)((UINT32)PM)+PM2+(PL>>32); };
}
*pres = res;
}
int main() { return 0; }
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