Warnings and compile-time failure on 458.sjeng

[Vedant Kumar via llvm-commits]

Hi David,

I think one of the SPEC2006 tests doesn't have enough statically-allocated VP nodes per site. We're seeing:

> "Child terminated by signal 25" (SIGXFSZ) after:
> 
> LLVM Profile Warning: Running out of nodes: site_0 at func_12822962448227433604, value=4295054468
> ...
> LLVM Profile Warning: Running out of nodes: site_0 at func_12822962448227433604, value=4295052980
> LLVM Profile Warning: Running out of nodes: site_0 at func_12822962/Users/buildslave/jenkins/workspace/Performance_ARM64_SPEC2006_INT-O3_LTO_PGO-master/spec2006/cur_run/nt/build/LNTBased/speccpu2006/int/458.sjeng

It seems like the fix for now is to either tweak vp-counters-per-site for the test or to set -vp-static-alloc=false.

In the long term, do you think it's worth adjusting vp-counters-per-site s.t we can run SPEC without modifications? If so, is SPEC the right testbed?

thanks,
vedant