[static analyzer] Define __clang_analyzer__ macro in driver

Differential Revision: https://reviews.llvm.org/D67938

llvm-svn: 372679

clang/lib/Driver/ToolChains/Clang.cpp

@@ -3896,8 +3896,10 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
   if (Args.hasArg(options::OPT_municode))
     CmdArgs.push_back("-DUNICODE");
 
-  if (isa<AnalyzeJobAction>(JA))
+  if (isa<AnalyzeJobAction>(JA)) {
     RenderAnalyzerOptions(Args, CmdArgs, Triple, Input);
+    CmdArgs.push_back("-D__clang_analyzer__");
+  }
 
   // Enable compatilibily mode to avoid analyzer-config related errors.
   // Since we can't access frontend flags through hasArg, let's manually iterate

clang/lib/Frontend/InitPreprocessor.cpp

@@ -990,10 +990,6 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
   else if (LangOpts.getStackProtector() == LangOptions::SSPReq)
     Builder.defineMacro("__SSP_ALL__", "3");
 
-  // Define a macro that exists only when using the static analyzer.
-  if (FEOpts.ProgramAction == frontend::RunAnalysis)
-    Builder.defineMacro("__clang_analyzer__");
-
   if (LangOpts.FastRelaxedMath)
     Builder.defineMacro("__FAST_RELAXED_MATH__");
 

clang/test/Analysis/misc-driver.c

@@ -0,0 +1,5 @@
+// RUN: %clang --analyze %s
+
+#ifndef __clang_analyzer__
+#error __clang_analyzer__ not defined
+#endif

clang/test/Analysis/misc-ps.m

@@ -2,10 +2,6 @@
 // RUN: %clang_analyze_cc1 -triple i386-apple-darwin10 -analyzer-checker=core,alpha.core,osx.cocoa.AtSync -analyzer-store=region -verify -fblocks -Wno-unreachable-code -Wno-null-dereference -Wno-objc-root-class %s
 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,alpha.core,osx.cocoa.AtSync -analyzer-store=region -verify -fblocks -Wno-unreachable-code -Wno-null-dereference -Wno-objc-root-class %s
 
-#ifndef __clang_analyzer__
-#error __clang_analyzer__ not defined
-#endif
-
 typedef struct objc_ivar *Ivar;
 typedef struct objc_selector *SEL;
 typedef signed char BOOL;