[clang-scan-deps] Support for clang --analyze in clang-scan-deps

The goal is to have 100% fidelity in clang-scan-deps behavior when
--analyze is present in compilation command.

At the same time I don't want to break clang-tidy which expects
__static_analyzer__ macro defined as built-in.

I introduce new cc1 options (-setup-static-analyzer) that controls
the macro definition and is conditionally set in driver.

Differential Revision: https://reviews.llvm.org/D68093

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@374815 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 5 insertions, 0 deletions

diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index 66906fb862..e0974fbb5a 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -846,6 +846,8 @@ def preamble_bytes_EQ : Joined<["-"], "preamble-bytes=">,
            "covering the first N bytes of the main file">;
 def detailed_preprocessing_record : Flag<["-"], "detailed-preprocessing-record">,
   HelpText<"include a detailed record of preprocessing actions">;
+def setup_static_analyzer : Flag<["-"], "setup-static-analyzer">,
+  HelpText<"Set up preprocessor for static analyzer (done automatically when static analyzer is run).">;
 
 //===----------------------------------------------------------------------===//
 // OpenCL Options
diff --git a/include/clang/Lex/PreprocessorOptions.h b/include/clang/Lex/PreprocessorOptions.h
index aa62b9bb48..344afa8941 100644
--- a/include/clang/Lex/PreprocessorOptions.h
+++ b/include/clang/Lex/PreprocessorOptions.h
@@ -181,6 +181,9 @@ public:
   ExcludedPreprocessorDirectiveSkipMapping
       *ExcludedConditionalDirectiveSkipMappings = nullptr;
 
+  /// Set up preprocessor for RunAnalysis action.
+  bool SetUpStaticAnalyzer = false;
+
 public:
   PreprocessorOptions() : PrecompiledPreambleBytes(0, false) {}