Use env variable for accumulator localization if it is only set to true

Author: azabazno

IGC/VectorCompiler/igcdeps/src/TranslationInterface.cpp

@@ -172,7 +172,7 @@ static void adjustBinaryFormat(vc::BinaryKind &Binary) {
 
 static void adjustTransformationsAndOptimizations(vc::CompileOptions &Opts) {
   if (IGC_IS_FLAG_ENABLED(VCLocalizeAccUsage))
-    Opts.LocalizeLiveRangesForAccUsage = true;
+    Opts.ForceLiveRangesLocalizationForAccUsage = true;
 }
 
 static void adjustDumpOptions(vc::CompileOptions &Opts) {

IGC/VectorCompiler/include/vc/GenXCodeGen/GenXWrapper.h

@@ -82,7 +82,7 @@ struct CompileOptions {
 
   OptimizerLevel OptLevel = OptimizerLevel::Full;
   llvm::Optional<unsigned> StackMemSize;
-  bool LocalizeLiveRangesForAccUsage = false;
+  bool ForceLiveRangesLocalizationForAccUsage = false;
 
   // Internal options.
   std::string FeaturesString; // format is: [+-]<feature1>,[+-]<feature2>,...

IGC/VectorCompiler/lib/GenXCodeGen/GenXWrapper.cpp

@@ -229,7 +229,8 @@ static GenXBackendOptions createBackendOptions(const vc::CompileOptions &Opts) {
           ? GlobalsLocalizationConfig::CreateLocalizationWithLimit()
           : GlobalsLocalizationConfig::CreateForcedLocalization();
   BackendOpts.ForceArrayPromotion = (Opts.Binary == vc::BinaryKind::CM);
-  BackendOpts.LocalizeLRsForAccUsage = Opts.LocalizeLiveRangesForAccUsage;
+  if (Opts.ForceLiveRangesLocalizationForAccUsage)
+    BackendOpts.LocalizeLRsForAccUsage = true;
   return BackendOpts;
 }