Removal of IBC infrastructure

[AaronRobinsonMSFT]

This represents a course removal of the IBC infrastructure.

Questions on what else to remove can start with looking at the following under src/coreclr.

szZapBBInstr
szZapBBInstrDir
void Module::CreateProfilingData();
void Module::DeleteProfilingData();

Files:
src/coreclr/inc/corbbtprof.h
Under src/coreclr/tools/aot/ILCompiler.ReadyToRun/IBC

/cc @davidwrighton

[davidwrighton]

Good progress. I found 1 thing that shouldn't have been removed which is quite important (and will cause perf problems if you don't fix), but I also found a bunch of more stuff to delete.

[davidwrighton]

We also need to delete the /tuning switch, which exists to make use of the ProfileDataNode stuff you just deleted.

crossgen2\CommandLineOptions.cs: public bool Tuning;
crossgen2\CommandLineOptions.cs: syntax.DefineOption("tuning", ref Tuning, SR.TuningImageOption);
crossgen2\Program.cs: .UseIbcTuning(_commandLineOptions.Tuning)
crossgen2\Properties\Resources.resx:
ILCompiler.ReadyToRun\Compiler\ReadyToRunCodegenCompilationBuilder.cs: private bool _ibcTuning;
ILCompiler.ReadyToRun\Compiler\ReadyToRunCodegenCompilationBuilder.cs: public ReadyToRunCodegenCompilationBuilder UseIbcTuning(bool ibcTuning)
ILCompiler.ReadyToRun\Compiler\ReadyToRunCodegenCompilationBuilder.cs: _ibcTuning = ibcTuning;
ILCompiler.ReadyToRun\Compiler\ReadyToRunCodegenCompilationBuilder.cs: if (_ibcTuning)

All of that should go.

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In reply to: 958156947