From 06a0702e4033573be42105bc51bbfeff628a00da Mon Sep 17 00:00:00 2001
From: "Duncan P. N. Exon Smith" <dexonsmith@apple.com>
Date: Fri, 13 Feb 2015 01:30:42 +0000
Subject: AsmWriter/Bitcode: MDLexicalBlockFile

llvm-svn: 229017
---
 llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 11 +++++++++++
 llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | 17 +++++++++++++----
 2 files changed, 24 insertions(+), 4 deletions(-)

(limited to 'llvm/lib/Bitcode')

diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 22dcd2a0812..fa139d74fba 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1479,6 +1479,17 @@ std::error_code BitcodeReader::ParseMetadata() {
           NextMDValueNo++);
       break;
     }
+    case bitc::METADATA_LEXICAL_BLOCK_FILE: {
+      if (Record.size() != 4)
+        return Error("Invalid record");
+
+      MDValueList.AssignValue(
+          GET_OR_DISTINCT(MDLexicalBlockFile, Record[0],
+                          (Context, getMDOrNull(Record[1]),
+                           getMDOrNull(Record[2]), Record[3])),
+          NextMDValueNo++);
+      break;
+    }
     case bitc::METADATA_STRING: {
       std::string String(Record.begin(), Record.end());
       llvm::UpgradeMDStringConstant(String);
diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index 21dc5349cdc..4643a7236a4 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -993,11 +993,20 @@ static void WriteMDLexicalBlock(const MDLexicalBlock *N,
   Record.clear();
 }
 
-static void WriteMDLexicalBlockFile(const MDLexicalBlockFile *,
-                                    const ValueEnumerator &, BitstreamWriter &,
-                                    SmallVectorImpl<uint64_t> &, unsigned) {
-  llvm_unreachable("write not implemented");
+static void WriteMDLexicalBlockFile(const MDLexicalBlockFile *N,
+                                    const ValueEnumerator &VE,
+                                    BitstreamWriter &Stream,
+                                    SmallVectorImpl<uint64_t> &Record,
+                                    unsigned Abbrev) {
+  Record.push_back(N->isDistinct());
+  Record.push_back(VE.getMetadataOrNullID(N->getScope()));
+  Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+  Record.push_back(N->getDiscriminator());
+
+  Stream.EmitRecord(bitc::METADATA_LEXICAL_BLOCK_FILE, Record, Abbrev);
+  Record.clear();
 }
+
 static void WriteMDNamespace(const MDNamespace *, const ValueEnumerator &,
                              BitstreamWriter &, SmallVectorImpl<uint64_t> &,
                              unsigned) {
-- 
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