[LLVMdev] crash in 2.7: SCCPSolver::ResolvedUndefsIn

[Chris Lattner]

On May 19, 2010, at 5:59 PM, Howell, Nathan wrote:

> Are there any known issues with the ResolvedUndefsIn in 2.7? We've hit this particular stack a couple times now in the JIT. I've copied the failing bitcode to disk and doesn't crash opt or llc. It doesn't repro easily in the JIT either, but the stack is always the same... hoping it's a known issue. Thanks!

Hi Nathan,

Yes, there were some fixes in this area back in april after 2.7 branched.  I'd recommend diffing the lib/Transforms/Scalar/SCCP.cpp file between 2.7 and mainline to see if you want to pull in the changes.

-Chris