commit 98e95bf1c84560684356088af7f4878bdacb5856
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 2935233e0ef26ab27f4cc1f2408d6b884510eabd
parent 12f5fe5f4ee9318a11e299f199f61eea05a2a450

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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163958 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Frontend/ASTUnit.cpp

diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index d0aadfd..cb7ff1e 100644
--- a/lib/Frontend/ASTUnit.cpp
+++ b/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));