[cfe-commits] r167799 - /cfe/trunk/lib/Driver/Tools.cpp

[Bill Wendling]

On Nov 13, 2012, at 10:03 AM, Eric Christopher <echristo at gmail.com> wrote:

> On Mon, Nov 12, 2012 at 4:54 PM, Bill Wendling <isanbard at gmail.com> wrote:
> Author: void
> Date: Mon Nov 12 18:54:24 2012
> New Revision: 167799
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=167799&view=rev
> Log:
> Disable accelerator tables when compiling with LTO.
> 
> LTO doesn't generate correct accelerator tables. This is due to the general lack
> correct of debug info for LTO. Disable it when using LTO.
> <rdar://problem/12401423>
> 
> 
> Not a huge fan of this patch. Debug Info for LTO in general isn't working yet, what's the difference between this and anything else? What kind of configuration are you building with that this is occurring? What tool is breaking?
> 
If we build LLVM in LTO mode  and then run dtrace on the executable, it will eat all of your memory and fill up your hard drive because of bad debug info resulting from bad accelerator tables.

-bw


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