[LLVMdev] Weird memory bug

[Chris Lattner]

On Sat, 24 Dec 2005, Alexander Friedman wrote:
> After running through bugpoint, I get this reduced function
>
> You can reproduce the problem with:
>
> opt bugpoint-reduced-function.bc -break-crit-edges -adce -verify
>
> Bugpoint is currently trying to narrow down which block breaks this,
> but is so far failing. It seems to be running out of memory rather
> than failing on a particular block.
>
> This is on freebsd 5.4, X86, llvm is compiled with gcc 3.4.2

BTW, Nate recently commited a fix for this issue:
http://llvm.org/bugs/show_bug.cgi?id=681

Nate wrote:
"Implemented postdom based on Lengauer and Tarjan implementation in 
forward dom.  Speeds up this testcase from 32.8 to 0.8 seconds on my G5, 
drops memory requirement from 496MB to 26MB."

-Chris

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