[LLVMdev] Destroying MDNodeOperand

[Pan, Wei]

Hello,

>From VTune profiler, we notice that function MDNodeOperand::deleted, called from destructor ~llvmContextImpl, consumes ~18% (0.67 sec) of the total compilation time (3.7sec). This llvm module has ~400 metadata. Is this destruction time unexpectedly high or just expected? Or we should avoid to use this amount of metadata in the first place.  Any thoughts or suggestions?

Thanks,
Wei