Displaying 1 result from an estimated 1 matches for "0a77f045".
2016 Apr 01
4
RFC: std::vector and identified objects
Hi,
Consider this code:
std::vector v;
v.resize(256);
for (i = 0; i < ... ; ++i) {
a += v[b[i]];
}
This is a gather loop, and should be able to be vectorized. *however*...
I as a programmer can see that the size of v.data() is at least 256. I know
because of the contract of std::vector that v.data() is a unique heap
object that doesn't alias anything.
However, LLVM knows none of this.