[BOLT][DWARF] Fix output ranges for deleted code (llvm#73464)

Set range low_pc to 0 for DIEs that correspond to deleted code. Fixes llvm#73428
GPUOpen-Drivers · Nov 29, 2023 · 0acfe84 · 0acfe84
1 parent 35db35b
commit 0acfe84
Show file tree

Hide file tree

Showing 3 changed files with 917 additions and 2 deletions.
diff --git a/bolt/lib/Rewrite/DWARFRewriter.cpp b/bolt/lib/Rewrite/DWARFRewriter.cpp
@@ -961,8 +961,7 @@ void DWARFRewriter::updateUnitDebugInfo(
               std::move(OutputRanges), CachedRanges);
           OutputRanges.clear();
         } else if (OutputRanges.empty()) {
-          OutputRanges.push_back({RangesOrError.get().front().LowPC,
-                                  RangesOrError.get().front().HighPC});
+          OutputRanges.push_back({0, RangesOrError.get().front().HighPC});
         }
       } else if (!RangesOrError) {
         consumeError(RangesOrError.takeError());