[LLVMdev] disable insertion of unreachables

[Kenneth Uildriks]

What do you mean by "terminating function call"?  Is it one with the
"noreturn" attribute?  if so, the assembly language docs say that
program behavior is undefined if such a function ever returns.  If
your function could possibly return, it needs to not have that
attribute.

On Sun, Sep 6, 2009 at 4:49 PM, Max
Stonebraker<max.stonebraker at gmail.com> wrote:
> Hello all,
>
> LLVM inserts unreachable instructions after every call to a terminating
> function. Is there a way to disable this feature so that it treats
> terminating function calls like any other function call, so the unreachable
> instruction would not be inserted? Unfortunately, simply removing the
> unreachable instructions after the fact would not suffice for my needs
> because I need to preserve the original control flow of the program. That
> is, I need to know the instruction that would have been executed if the call
> to the terminating function didn't actually terminate the program.
>
> Thanks!
>
> Max
>
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