Displaying 1 result from an estimated 1 matches for "7ad59336".
2017 Feb 15
4
multiprecision add/sub
I suggest that LLVM needs intrinsics for add/sub with carry, e.g.
declare {T, i1} @llvm.addc.T(T %a, T %b, i1 c)
The current multiprecision clang intrinsics example:
void foo(unsigned *x, unsigned *y, unsigned *z)
{ unsigned carryin = 0;
unsigned carryout;
z[0] = __builtin_addc(x[0], y[0], carryin, &carryout);
carryin = carryout;
z[1] = __builtin_addc(x[1], y[1],