Baby steps towards ARM fast-isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109047 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp
new file mode 100644
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--- /dev/null
+++ b/lib/Target/ARM/ARMFastISel.cpp
@@ -0,0 +1,71 @@
+//===-- ARMFastISel.cpp - ARM FastISel implementation ---------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the ARM-specific support for the FastISel class. Some
+// of the target-specific code is generated by tablegen in the file
+// ARMGenFastISel.inc, which is #included here.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ARM.h"
+#include "ARMRegisterInfo.h"
+#include "ARMTargetMachine.h"
+#include "ARMSubtarget.h"
+#include "llvm/CallingConv.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/GlobalVariable.h"
+#include "llvm/Instructions.h"
+#include "llvm/IntrinsicInst.h"
+#include "llvm/CodeGen/Analysis.h"
+#include "llvm/CodeGen/FastISel.h"
+#include "llvm/CodeGen/FunctionLoweringInfo.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/Support/CallSite.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/GetElementPtrTypeIterator.h"
+#include "llvm/Target/TargetOptions.h"
+using namespace llvm;
+
+namespace {
+
+class ARMFastISel : public FastISel {
+
+ /// Subtarget - Keep a pointer to the ARMSubtarget around so that we can
+ /// make the right decision when generating code for different targets.
+ const ARMSubtarget *Subtarget;
+
+ public:
+ explicit ARMFastISel(FunctionLoweringInfo &funcInfo) : FastISel(funcInfo) {
+ Subtarget = &TM.getSubtarget<ARMSubtarget>();
+ }
+
+ virtual bool TargetSelectInstruction(const Instruction *I);
+
+ #include "ARMGenFastISel.inc"
+
+ };
+
+} // end anonymous namespace
+
+// #include "ARMGenCallingConv.inc"
+
+bool ARMFastISel::TargetSelectInstruction(const Instruction *I) {
+ switch (I->getOpcode()) {
+ default: break;
+ }
+ return false;
+}
+
+namespace llvm {
+ llvm::FastISel *ARM::createFastISel(FunctionLoweringInfo &funcInfo) {
+ return new ARMFastISel(funcInfo);
+ }
+}