[llvm-pdbutil] Show what blocks a stream occupies.

This is useful when you want to look at a specific chunk of a
stream or look for discontinuities, and you need to know the
list of blocks occupied by a stream.

llvm-svn: 306150

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/tools/llvm-pdbutil/DumpOutputStyle.cpp b/llvm/tools/llvm-pdbutil/DumpOutputStyle.cpp
index a05e5cf03e9..f76635f9e51 100644
--- a/llvm/tools/llvm-pdbutil/DumpOutputStyle.cpp
+++ b/llvm/tools/llvm-pdbutil/DumpOutputStyle.cpp
@@ -199,6 +199,13 @@ Error DumpOutputStyle::dumpStreamSummary() {
         "Stream {0}: [{1}] ({2} bytes)",
         fmt_align(StreamIdx, AlignStyle::Right, NumDigits(StreamCount)),
         StreamPurposes[StreamIdx], File.getStreamByteSize(StreamIdx));
+    if (opts::dump::DumpStreamBlocks) {
+      auto Blocks = File.getStreamBlockList(StreamIdx);
+      std::vector<uint32_t> BV(Blocks.begin(), Blocks.end());
+      P.formatLine("       {0}  Blocks: [{1}]",
+                   fmt_repeat(' ', NumDigits(StreamCount)),
+                   make_range(BV.begin(), BV.end()));
+    }
   }
 
   return Error::success();