Boris Boesler via llvm-dev
2015-Oct-16 16:57 UTC
[llvm-dev] How to disable some transformations
Hi! LLVM performs some transformations and generates results that are not valid on my architecture. For example, if I extract an element from a vector in memory at address addr and shift it logically to the right by some size, it is replaced by loading a scalar value from memory addr+x. This transformation is correct, if the target supports byte-addressing; which is not supported on my architecture. I haven't found a way to disable these kinds of transformations in the back-end. Is there a way to disable ALL these transformations? I'm using version 3.4.2 Thanks, Boris