Implement -fno-validate-pch at the -cc1 level, which suppresses most
of the usual consistency checks used to determine when a precompiled
header is incompatible with the translation unit it's being loaded
into.
Enable this option when loading a precompiled preamble, because the
preamble loader will be performing all of this checking itself. Enable
the preamble-based test now that it's working.
This option is also useful for debugging Clang's PCH
(<rdar://problem/7532213>).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109475 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 68703c2..0ae4739 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -1353,7 +1353,8 @@
Opts.TokenCache = Opts.ImplicitPTHInclude;
Opts.UsePredefines = !Args.hasArg(OPT_undef);
Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
-
+ Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
+
if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
llvm::StringRef Value(A->getValue(Args));
size_t Comma = Value.find(',');