[llvm-commits] [llvm] r112597 - in /llvm/trunk: include/llvm/CodeGen/Passes.h lib/CodeGen/DwarfEHPrepare.cpp lib/CodeGen/LLVMTargetMachine.cpp

[John McCall]

On Aug 31, 2010, at 2:05 AM, Duncan Sands wrote:

> Author: baldrick
> Date: Tue Aug 31 04:05:06 2010
> New Revision: 112597
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=112597&view=rev
> Log:
> Stop using the dom frontier in DwarfEHPrepare by not promoting alloca's
> any more.  I plan to reimplement alloca promotion using SSAUpdater later.
> It looks like Bill's URoR logic really always needs domtree, so the pass
> now always asks for domtree info.

I've brought this up with Bill before, but it really doesn't need domtree;  dominance is the wrong analysis for this task.  The question is reachability.

John.