[embedded] Print demangled function names in PerformanceDiagnostics

Author: kubamracek

lib/SILOptimizer/Mandatory/PerformanceDiagnostics.cpp

@@ -182,7 +182,10 @@ bool PerformanceDiagnostics::visitFunction(SILFunction *function,
     for (SILInstruction &inst : block) {
       if (visitInst(&inst, perfConstr, parentLoc)) {
         if (inst.getLoc().getSourceLoc().isInvalid()) {
-          llvm::errs() << "in function " << inst.getFunction()->getName() << "\n";
+          auto demangledName = Demangle::demangleSymbolAsString(
+              inst.getFunction()->getName(),
+              Demangle::DemangleOptions::SimplifiedUIDemangleOptions());
+          llvm::errs() << "in function " << demangledName << "\n";
         }
         LLVM_DEBUG(llvm::dbgs() << inst << *inst.getFunction());
         return true;
@@ -586,7 +589,10 @@ void PerformanceDiagnostics::checkNonAnnotatedFunction(SILFunction *function) {
         auto loc = LocWithParent(inst.getLoc().getSourceLoc(), nullptr);
         if (visitInst(&inst, PerformanceConstraints::None, &loc)) {
           if (inst.getLoc().getSourceLoc().isInvalid()) {
-            llvm::errs() << "in function " << inst.getFunction()->getName() << "\n";
+            auto demangledName = Demangle::demangleSymbolAsString(
+                inst.getFunction()->getName(),
+                Demangle::DemangleOptions::SimplifiedUIDemangleOptions());
+            llvm::errs() << "in function " << demangledName << "\n";
           }
           LLVM_DEBUG(llvm::dbgs() << inst << *inst.getFunction());
         }