[AArch64][GlobalISel] Move GlobalISel source files to a dedicated subdir.

Differential Revision: https://reviews.llvm.org/D81116

llvm/lib/Target/AArch64/AArch64Subtarget.cpp

@@ -13,12 +13,12 @@
 #include "AArch64Subtarget.h"
 
 #include "AArch64.h"
-#include "AArch64CallLowering.h"
 #include "AArch64InstrInfo.h"
-#include "AArch64LegalizerInfo.h"
 #include "AArch64PBQPRegAlloc.h"
 #include "AArch64RegisterBankInfo.h"
 #include "AArch64TargetMachine.h"
+#include "GISel/AArch64CallLowering.h"
+#include "GISel/AArch64LegalizerInfo.h"
 #include "MCTargetDesc/AArch64AddressingModes.h"
 #include "llvm/CodeGen/GlobalISel/InstructionSelect.h"
 #include "llvm/CodeGen/MachineScheduler.h"

llvm/lib/Target/AArch64/CMakeLists.txt

@@ -24,12 +24,16 @@ tablegen(LLVM AArch64GenExegesis.inc -gen-exegesis)
 add_public_tablegen_target(AArch64CommonTableGen)
 
 add_llvm_target(AArch64CodeGen
+  GISel/AArch64CallLowering.cpp
+  GISel/AArch64InstructionSelector.cpp
+  GISel/AArch64LegalizerInfo.cpp
+  GISel/AArch64PreLegalizerCombiner.cpp
+  GISel/AArch64PostLegalizerCombiner.cpp
   AArch64A57FPLoadBalancing.cpp
   AArch64AdvSIMDScalarPass.cpp
   AArch64AsmPrinter.cpp
   AArch64BranchTargets.cpp
   AArch64CallingConvention.cpp
-  AArch64CallLowering.cpp
   AArch64CleanupLocalDynamicTLSPass.cpp
   AArch64CollectLOH.cpp
   AArch64CondBrTuning.cpp
@@ -47,14 +51,10 @@ add_llvm_target(AArch64CodeGen
   AArch64ISelDAGToDAG.cpp
   AArch64ISelLowering.cpp
   AArch64InstrInfo.cpp
-  AArch64InstructionSelector.cpp
-  AArch64LegalizerInfo.cpp
   AArch64LoadStoreOptimizer.cpp
   AArch64MachineFunctionInfo.cpp
   AArch64MacroFusion.cpp
   AArch64MCInstLower.cpp
-  AArch64PreLegalizerCombiner.cpp
-  AArch64PostLegalizerCombiner.cpp
   AArch64PromoteConstant.cpp
   AArch64PBQPRegAlloc.cpp
   AArch64RegisterBankInfo.cpp