[llvm-commits] [llvm] r98550 - /llvm/trunk/lib/CodeGen/UnreachableBlockElim.cpp

[Dan Gohman]

On Mar 15, 2010, at 9:37 AM, Chris Lattner wrote:

> Author: lattner
> Date: Mon Mar 15 11:37:42 2010
> New Revision: 98550
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=98550&view=rev
> Log:
> don't eliminate address-taken blocks here.

IIRC, the main reason for UnreachableBlockElim is that CodeGen's liveness analysis
requires all blocks be reachable. If address-taken blocks have no CFG predecessors
and aren't deleted, wouldn't it re-introduce the problems UnreachableBlockElim was
intended to solve?

Dan