From bc6f52da82b4a0383fa2f2c4e056b43b6e5ddaf7 Mon Sep 17 00:00:00 2001
From: Reid Kleckner <rnk@google.com>
Date: Tue, 31 Oct 2017 21:52:15 +0000
Subject: [codeview] Merge file checksum entries for DIFiles with the same
 absolute path

Change the map key from DIFile* to the absolute path string. Computing
the absolute path isn't expensive because we already have a map that
caches the full path keyed on DIFile*.

llvm-svn: 317041
---
 llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h')

diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
index 5e424baf852..9eff4a7fd81 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
@@ -161,8 +161,9 @@ class LLVM_LIBRARY_VISIBILITY CodeViewDebug : public DebugHandlerBase {
   /// emit at the end of the TU.
   MapVector<const Function *, FunctionInfo> FnDebugInfo;
 
-  /// Map from DIFile to .cv_file id.
-  DenseMap<const DIFile *, unsigned> FileIdMap;
+  /// Map from full file path to .cv_file id. Full paths are built from DIFiles
+  /// and are stored in FileToFilepathMap;
+  DenseMap<StringRef, unsigned> FileIdMap;
 
   /// All inlined subprograms in the order they should be emitted.
   SmallSetVector<const DISubprogram *, 4> InlinedSubprograms;
-- 
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