[llvm] [llvm-profgen] Print DWP related warnings under show-detailed-warning (PR #68019)

[Hongtao Yu via llvm-commits]

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@@ -810,24 +810,30 @@ void ProfiledBinary::loadSymbolsFromDWARF(ObjectFile &Obj) {
     loadSymbolsFromDWARFUnit(*CompilationUnit.get());
 
   // Handles DWO sections that can either be in .o, .dwo or .dwp files.
+  uint32_t NumOfDWOMissing = 0;
   for (const auto &CompilationUnit : DebugContext->compile_units()) {
     DWARFUnit *const DwarfUnit = CompilationUnit.get();
     if (DwarfUnit->getDWOId()) {
       DWARFUnit *DWOCU = DwarfUnit->getNonSkeletonUnitDIE(false).getDwarfUnit();
       if (!DWOCU->isDWOUnit()) {
-        std::string DWOName = dwarf::toString(
-            DwarfUnit->getUnitDIE().find(
-                {dwarf::DW_AT_dwo_name, dwarf::DW_AT_GNU_dwo_name}),
-            "");
-        WithColor::warning()
-            << "DWO debug information for " << DWOName
-            << " was not loaded. Please check the .o, .dwo or .dwp path.\n";
+        NumOfDWOMissing++;
+        if (ShowDetailedWarning) {
+          std::string DWOName = dwarf::toString(
+              DwarfUnit->getUnitDIE().find(
+                  {dwarf::DW_AT_dwo_name, dwarf::DW_AT_GNU_dwo_name}),
+              "");
+          WithColor::warning()
+              << "DWO debug information for " << DWOName
+              << " was not loaded. Please check the .o, .dwo or .dwp path.\n";
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htyu wrote:

Sounds good.

https://github.com/llvm/llvm-project/pull/68019