[LLVMdev] Protecting a register value in the LLVM backend

[dag at cray.com]

Marcello Maggioni <hayarms at gmail.com> writes:

> can you point me to an instruction in the X86 architecture that uses
> this?
>
> The MUL instruction would be a good example?

MUL, DIV, any integer arithmetic (sets EFLAGS).

There are implicit uses as well (SHL, SHR, etc.).

                         -David