[TargetLowering] Don't include ComplexDeinterleavingPass.h (NFC)

TargetLowering.h shouldn't include any passes and thus pull in
the entire pass infrastructure. Replace the include with forward
declarations.

Author: nikic

llvm/include/llvm/CodeGen/TargetLowering.h

@@ -27,7 +27,6 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringRef.h"
-#include "llvm/CodeGen/ComplexDeinterleavingPass.h"
 #include "llvm/CodeGen/DAGCombine.h"
 #include "llvm/CodeGen/ISDOpcodes.h"
 #include "llvm/CodeGen/LowLevelTypeUtils.h"
@@ -66,6 +65,8 @@ namespace llvm {
 class AssumptionCache;
 class CCState;
 class CCValAssign;
+enum class ComplexDeinterleavingOperation;
+enum class ComplexDeinterleavingRotation;
 class Constant;
 class FastISel;
 class FunctionLoweringInfo;

llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

@@ -37,6 +37,7 @@
 #include "llvm/Analysis/VectorUtils.h"
 #include "llvm/CodeGen/Analysis.h"
 #include "llvm/CodeGen/CallingConvLower.h"
+#include "llvm/CodeGen/ComplexDeinterleavingPass.h"
 #include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
 #include "llvm/CodeGen/GlobalISel/Utils.h"
 #include "llvm/CodeGen/ISDOpcodes.h"

llvm/lib/Target/ARM/ARMISelLowering.cpp

@@ -40,6 +40,7 @@
 #include "llvm/ADT/Twine.h"
 #include "llvm/Analysis/VectorUtils.h"
 #include "llvm/CodeGen/CallingConvLower.h"
+#include "llvm/CodeGen/ComplexDeinterleavingPass.h"
 #include "llvm/CodeGen/ISDOpcodes.h"
 #include "llvm/CodeGen/IntrinsicLowering.h"
 #include "llvm/CodeGen/MachineBasicBlock.h"

llvm/lib/Target/X86/X86CallingConv.cpp

@@ -16,6 +16,7 @@
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/CodeGen/CallingConvLower.h"
 #include "llvm/IR/CallingConv.h"
+#include "llvm/IR/Module.h"
 
 using namespace llvm;