2 // Originator: thor@math.tu-berlin.de
5 // { dg-options "-O3 -funroll-loops -mtune=k6 -fomit-frame-pointer" { target i?86-*-* } }
7 // This used to fail to assemble because of an out-of-range 'loop' instructions.
15 class EBCOTLut : public JKeeper {
16 unsigned char a1[1<<8];
17 unsigned char a2[1<<8];
18 unsigned char a3[1<<8];
24 EBCOTLut::EBCOTLut(void)
26 unsigned char inter[36]; // intermediate lookup table;
32 a1[i | (1<<7)] = 8<<1;
33 a1[i | (1<<6)] = 8<<1;
35 for(i=0;i < ((1<<9)-1);i++) {
36 int ds = (i>>0) & 0x01; // significance of DOWN
37 int us = (i>>1) & 0x01; // significance of UP
38 int rs = (i>>2) & 0x01; // significance of RIGHT
39 int ls = (i>>3) & 0x01; // significance of LEFT
40 int dn = (i>>5) & 0x01; // sign of DOWN
41 int un = (i>>6) & 0x01; // sign of UP
42 int rn = (i>>7) & 0x01; // sign of RIGHT
43 int ln = (i>>8) & 0x01; // sign of LEFT
44 int h,v; // h and v as in the VM description
46 h = ls*(1-ln*2) + rs*(1-2*rn);
47 v = us*(1-un*2) + ds*(1-2*dn);
48 h = (h >= -1)?(h):(-1);
49 v = (v >= -1)?(v):(-1);
52 a2[i] = inter[((h+1)<<3) | (v+1)];
53 a3[i] = inter[((h+1)<<3) | (v+1)] & (unsigned char)(~1);
55 for(i=0;i< 1<<9; i++) {
56 a4[i] = 2*(i-(1<<(9-1)))*(i-(1<<(9-1))) -
58 (2*(i-(1<<(9-2)))*(i-(1<<(9-2)))):
59 (2*(i-(3<<(9-2)))*(i-(3<<(9-2)))));