[LLVMdev] Weird memory bug

Chris Lattner sabre at nondot.org
Tue Mar 14 11:42:42 PST 2006

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:

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."



More information about the llvm-dev mailing list