commit 945a819326df63f4db59889fdf4f8e0f1681f069
author Argyrios Kyrtzidis <akyrtzi@gmail.com> Sat Sep 15 01:10:20 2012 +0000
committer Argyrios Kyrtzidis <akyrtzi@gmail.com> Sat Sep 15 01:10:20 2012 +0000
tree f25fab0a1405d067a781f19ebaaddd5303455b4d
parent c09d9d898de554db11b46626f921ac4350259055

Allow disabling PCH validation when loading an AST file by checking
an environment variable for debugging purposes.

llvm-svn: 163958

clang/lib/Frontend/ASTUnit.cpp

diff --git a/clang/lib/Frontend/ASTUnit.cpp b/clang/lib/Frontend/ASTUnit.cpp
index d0aadfd..cb7ff1e 100644
--- a/clang/lib/Frontend/ASTUnit.cpp
+++ b/clang/lib/Frontend/ASTUnit.cpp
@@ -772,9 +772,12 @@
                             /*DelayInitialization=*/true);
   ASTContext &Context = *AST->Ctx;
 
+  bool disableValid = false;
+  if (::getenv("LIBCLANG_DISABLE_PCH_VALIDATION"))
+    disableValid = true;
   Reader.reset(new ASTReader(PP, Context,
                              /*isysroot=*/"",
-                             /*DisableValidation=*/false,
+                             /*DisableValidation=*/disableValid,
                              /*DisableStatCache=*/false,
                              AllowPCHWithCompilerErrors));