llvm

41658d9d - [vecz] Clear getelementptr flags.

[vecz] Clear getelementptr flags. If a getelementptr has inbounds/nusw/nuw flags, it is valid for the result to be out of bounds or to wrap so long as the result is not used to access any object. However, if we vectorize, multiple elements will all be loaded based on the first element's address, and in that we may add accesses, so we need to clear the inbounds/nusw/nuw flags unless we can prove they are still valid.