Displaying 1 result from an estimated 1 matches for "0df7bc59".
2016 Oct 19
4
RFC: Killing undef and spreading poison
On Wed, Oct 19, 2016 at 2:52 PM, Nuno Lopes via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Memcpy does a byte-by-byte copy. So if one of the bits is poison then only
> the byte containing that bit becomes poison.
> Therefore, memcpy(x, y, 1) is equivalent to load i8. But memcpy(x,y,4) is
> not equivalent to "load i32" since load makes the whole value poison if