llc.exe out of memory on Intel cpu family 6, model 58, Intel(R) Core(TM) i7-3770K CPU

[lovettchris]

See my gist for details and repo bitcode:
https://gist.github.com/lovettchris/b9c03f3506c0d972bf58d5c89f8bb08a

With the model.bc bitcode included there first run LLVM opt:

opt.exe model.bc -o model.opt.bc -O3

which completes fine, but then the following hangs for long time then runs out of memory.

llc.exe model.opt.bc -o model.o -O3 -filetype=obj -relocation-model=pic

others are reporting the same problem. But it does not repo on haswell CPU's. I included some stack traces that I gathered in the gist.

The perf trace shows memory shoots up after about 8 minutes:

[yunqu]

LLVM hangs for me as well, on a ubuntu linux box.