GlobalsModRef.h - reduce CallGraph.h include to forward declarations. NFC.

Fix implicit include dependencies in source files.

include/llvm/Analysis/GlobalsModRef.h

@@ -14,7 +14,6 @@
 #define LLVM_ANALYSIS_GLOBALSMODREF_H
 
 #include "llvm/Analysis/AliasAnalysis.h"
-#include "llvm/Analysis/CallGraph.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/Module.h"
@@ -23,6 +22,7 @@
 #include <list>
 
 namespace llvm {
+class CallGraph;
 
 /// An alias analysis result set for globals.
 ///

lib/Analysis/GlobalsModRef.cpp

@@ -17,6 +17,7 @@
 #include "llvm/ADT/SCCIterator.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Analysis/CallGraph.h"
 #include "llvm/Analysis/MemoryBuiltins.h"
 #include "llvm/Analysis/TargetLibraryInfo.h"
 #include "llvm/Analysis/ValueTracking.h"
@@ -28,6 +29,7 @@
 #include "llvm/InitializePasses.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/CommandLine.h"
+
 using namespace llvm;
 
 #define DEBUG_TYPE "globalsmodref-aa"

lib/Transforms/Utils/EntryExitInstrumenter.cpp

@@ -11,6 +11,7 @@
 #include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/Instructions.h"
+#include "llvm/IR/Intrinsics.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Type.h"
 #include "llvm/InitializePasses.h"

unittests/Analysis/GlobalsModRefTest.cpp

@@ -8,6 +8,7 @@
 
 #include "llvm/Analysis/GlobalsModRef.h"
 #include "llvm/ADT/Triple.h"
+#include "llvm/Analysis/CallGraph.h"
 #include "llvm/AsmParser/Parser.h"
 #include "llvm/Support/SourceMgr.h"
 #include "gtest/gtest.h"