VM profiler (#14833)

* Crude VM profiler

* Added --profileVM flag, refactoring

* fixed FileLine hash

* Use TLineInfo instead of own FileLine, updated formatting

* Refactoring, moved PStackFrame to vmdefs for cleaner data structure

* Moved vmprofiler to separate file

* Simplified TLineInfo hash, use toFileLineCol for output

* Hash

* Moved profile data into Config, dump only once at end of run

* Changed profile output header to show '#instr' instead of 'count'

* Do not accumulate instrcount for non-top frames

Co-authored-by: Ico Doornekamp <git@zevv.nl>

compiler/main.nim

@@ -19,7 +19,7 @@ import
   cgen, json, nversion,
   platform, nimconf, passaux, depends, vm, idgen,
   modules,
-  modulegraphs, tables, rod, lineinfos, pathutils
+  modulegraphs, tables, rod, lineinfos, pathutils, vmprofiler
 
 when not defined(leanCompiler):
   import jsgen, docgen, docgen2
@@ -404,6 +404,8 @@ proc mainCommand*(graph: ModuleGraph) =
     else:
       output = $conf.absOutFile
     if optListFullPaths notin conf.globalOptions: output = output.AbsoluteFile.extractFilename
+    if optProfileVM in conf.globalOptions:
+      echo conf.dump(conf.vmProfileData)
     rawMessage(conf, hintSuccessX, [
       "loc", loc,
       "sec", sec,