Merging r196143:

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r196143 | mren | 2013-12-02 11:37:35 -0800 (Mon, 02 Dec 2013) | 1 line

Expand comments for Debug Info Version.
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_34@196818 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index 2acb2ec1e8..ae7983745c 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -260,7 +260,10 @@ void CodeGenModule::Release() {
                               CodeGenOpts.DwarfVersion);
   if (DebugInfo)
     // We support a single version in the linked module: error out when
-    // modules do not have the same version.
+    // modules do not have the same version. We are going to implement dropping
+    // debug info when the version number is not up-to-date. Once that is
+    // done, the bitcode linker is not going to see modules with different
+    // version numbers.
     getModule().addModuleFlag(llvm::Module::Error, "Debug Info Version",
                               llvm::dwarf::DEBUG_INFO_VERSION);