Turn off precompiled preamble support for C++

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109680 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index d67a6652dacb8791ae63e9d6acf56fe9dd158de8..a035cd89f60b15b720f73bd7ba146cc68daf7bb7 100644 (file)
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -789,7 +789,8 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocation(CompilerInvocation *CI,
   CI->getPreprocessorOpts().RetainRemappedFileBuffers = true;
   
   llvm::MemoryBuffer *OverrideMainBuffer = 0;
-  if (PrecompilePreamble)
+  // FIXME: When C++ PCH is ready, allow use of it for a precompiled preamble.
+  if (PrecompilePreamble && !CI->getLangOpts().CPlusPlus)
     OverrideMainBuffer = AST->BuildPrecompiledPreamble();
   
   if (!AST->Parse(OverrideMainBuffer))