Prune Pass.h include from DataLayout.h. NFCI

Summary:
Reduce include dependencies by no longer including Pass.h from
DataLayout.h. That include seemed irrelevant to DataLayout, as
well as being irrelevant to several users of DataLayout.

Reviewers: rnk

Reviewed By: rnk

Subscribers: mehdi_amini, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D69261

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375436 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/IR/DataLayout.h

@@ -25,7 +25,6 @@
 #include "llvm/ADT/StringRef.h"
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/IR/Type.h"
-#include "llvm/Pass.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MathExtras.h"

include/llvm/IR/Module.h

@@ -46,6 +46,7 @@ class FunctionType;
 class GVMaterializer;
 class LLVMContext;
 class MemoryBuffer;
+class Pass;
 class RandomNumberGenerator;
 template <class PtrType> class SmallPtrSetImpl;
 class StructType;

include/llvm/IR/PassManager.h

@@ -45,6 +45,7 @@
 #include "llvm/IR/Module.h"
 #include "llvm/IR/PassInstrumentation.h"
 #include "llvm/IR/PassManagerInternal.h"
+#include "llvm/Pass.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/TypeName.h"
 #include "llvm/Support/raw_ostream.h"

lib/Transforms/Utils/CanonicalizeAliases.cpp

@@ -33,6 +33,7 @@
 
 #include "llvm/IR/Operator.h"
 #include "llvm/IR/ValueHandle.h"
+#include "llvm/Pass.h"
 
 using namespace llvm;
 

tools/llvm-profdata/llvm-profdata.cpp

@@ -26,6 +26,7 @@
 #include "llvm/Support/InitLLVM.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
+#include "llvm/Support/Threading.h"
 #include "llvm/Support/ThreadPool.h"
 #include "llvm/Support/WithColor.h"
 #include "llvm/Support/raw_ostream.h"

unittests/IR/ModuleTest.cpp

@@ -8,6 +8,7 @@
 
 #include "llvm/IR/Module.h"
 #include "llvm/IR/GlobalVariable.h"
+#include "llvm/Pass.h"
 #include "llvm/Support/RandomNumberGenerator.h"
 #include "gtest/gtest.h"