Don't warn about Unicode characters in -E mode.
People use the C preprocessor for things other than C files. Some of them
have Unicode characters. We shouldn't warn about Unicode characters
appearing outside of identifiers in this case.
There's not currently a way for the preprocessor to tell if it's in -E mode,
so I added a new flag, derived from the PreprocessorOutputOptions. This is
only used by the Unicode warnings for now, but could conceivably be used by
other warnings or even behavioral differences later.
<rdar://problem/13107323>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173881 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/CompilerInstance.cpp b/lib/Frontend/CompilerInstance.cpp
index a7f0770..27f96b0 100644
--- a/lib/Frontend/CompilerInstance.cpp
+++ b/lib/Frontend/CompilerInstance.cpp
@@ -243,6 +243,8 @@
InitializePreprocessor(*PP, PPOpts, getHeaderSearchOpts(), getFrontendOpts());
+ PP->setPreprocessedOutput(getPreprocessorOutputOpts().ShowCPP);
+
// Set up the module path, including the hash for the
// module-creation options.
SmallString<256> SpecificModuleCache(