From 19538d1e9fb4f8198b94f8450c6fc43528d8b868 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Tue, 20 Jul 2010 21:42:28 +0000 Subject: Add support for remapping metadata kind IDs when reading in a bitcode file, so that two bitcode files where the same metadata kind name happens to have been assigned a different ID can still be linked together. Eliminate the restriction that metadata kind IDs can't be 0. Change MD_dbg from 1 to 0, because we can now, and because it's less mysterious that way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108939 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Bitcode/Writer/BitcodeWriter.cpp | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'lib/Bitcode/Writer/BitcodeWriter.cpp') diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp index fa1b2c4bee..985c16c783 100644 --- a/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -634,12 +634,11 @@ static void WriteModuleMetadataStore(const Module *M, BitstreamWriter &Stream) { SmallVector Names; M->getMDKindNames(Names); - assert(Names[0] == "" && "MDKind #0 is invalid"); - if (Names.size() == 1) return; + if (Names.empty()) return; Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); - for (unsigned MDKindID = 1, e = Names.size(); MDKindID != e; ++MDKindID) { + for (unsigned MDKindID = 0, e = Names.size(); MDKindID != e; ++MDKindID) { Record.push_back(MDKindID); StringRef KName = Names[MDKindID]; Record.append(KName.begin(), KName.end()); -- cgit v1.2.3-18-g5258