ARM backend contribution from Apple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33353 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMMachineFunctionInfo.h b/lib/Target/ARM/ARMMachineFunctionInfo.h
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+++ b/lib/Target/ARM/ARMMachineFunctionInfo.h
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+//====- ARMMachineFuctionInfo.h - ARM machine function info -----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the Evan Cheng and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares ARM-specific per-machine-function information.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ARMMACHINEFUNCTIONINFO_H
+#define ARMMACHINEFUNCTIONINFO_H
+
+#include "ARMSubtarget.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/Target/TargetMachine.h"
+
+namespace llvm {
+
+/// ARMFunctionInfo - This class is derived from MachineFunction private
+/// ARM target-specific information for each MachineFunction.
+class ARMFunctionInfo : public MachineFunctionInfo {
+
+ /// isThumb - True if this function is compiled under Thumb mode.
+ ///
+ bool isThumb;
+
+ /// VarArgsRegSaveSize - Size of the register save area for vararg functions.
+ ///
+ unsigned VarArgsRegSaveSize;
+
+ /// FramePtrSpilled - True if FP register is spilled. Set by
+ /// processFunctionBeforeCalleeSavedScan().
+ bool FramePtrSpilled;
+
+ /// FramePtrSpillOffset - If FramePtrSpilled, this records the frame pointer
+ /// spill stack offset.
+ unsigned FramePtrSpillOffset;
+
+ /// GPRCS1Offset, GPRCS2Offset, DPRCSOffset - Starting offset of callee saved
+ /// register spills areas. For Mac OS X:
+ ///
+ /// GPR callee-saved (1) : r4, r5, r6, r7, lr
+ /// --------------------------------------------
+ /// GPR callee-saved (2) : r8, r10, r11
+ /// --------------------------------------------
+ /// DPR callee-saved : d8 - d15
+ unsigned GPRCS1Offset;
+ unsigned GPRCS2Offset;
+ unsigned DPRCSOffset;
+
+ /// GPRCS1Size, GPRCS2Size, DPRCSSize - Sizes of callee saved register spills
+ /// areas.
+ unsigned GPRCS1Size;
+ unsigned GPRCS2Size;
+ unsigned DPRCSSize;
+
+ /// GPRCS1Frames, GPRCS2Frames, DPRCSFrames - Keeps track of frame indices
+ /// which belong to these spill areas.
+ std::set<int> GPRCS1Frames;
+ std::set<int> GPRCS2Frames;
+ std::set<int> DPRCSFrames;
+
+ /// JumpTableUId - Unique id for jumptables.
+ ///
+ unsigned JumpTableUId;
+
+public:
+ ARMFunctionInfo() :
+ isThumb(false),
+ VarArgsRegSaveSize(0), FramePtrSpilled(false), FramePtrSpillOffset(0),
+ GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
+ GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0), JumpTableUId(0) {}
+
+ ARMFunctionInfo(MachineFunction &MF) :
+ isThumb(MF.getTarget().getSubtarget<ARMSubtarget>().isThumb()),
+ VarArgsRegSaveSize(0), FramePtrSpilled(false), FramePtrSpillOffset(0),
+ GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
+ GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0), JumpTableUId(0) {}
+
+ bool isThumbFunction() const { return isThumb; }
+
+ unsigned getVarArgsRegSaveSize() const { return VarArgsRegSaveSize; }
+ void setVarArgsRegSaveSize(unsigned s) { VarArgsRegSaveSize = s; }
+
+ bool isFramePtrSpilled() const { return FramePtrSpilled; }
+ void setFramePtrSpilled(bool s) { FramePtrSpilled = s; }
+ unsigned getFramePtrSpillOffset() const { return FramePtrSpillOffset; }
+ void setFramePtrSpillOffset(unsigned o) { FramePtrSpillOffset = o; }
+
+ unsigned getGPRCalleeSavedArea1Offset() const { return GPRCS1Offset; }
+ unsigned getGPRCalleeSavedArea2Offset() const { return GPRCS2Offset; }
+ unsigned getDPRCalleeSavedAreaOffset() const { return DPRCSOffset; }
+
+ void setGPRCalleeSavedArea1Offset(unsigned o) { GPRCS1Offset = o; }
+ void setGPRCalleeSavedArea2Offset(unsigned o) { GPRCS2Offset = o; }
+ void setDPRCalleeSavedAreaOffset(unsigned o) { DPRCSOffset = o; }
+
+ unsigned getGPRCalleeSavedArea1Size() const { return GPRCS1Size; }
+ unsigned getGPRCalleeSavedArea2Size() const { return GPRCS2Size; }
+ unsigned getDPRCalleeSavedAreaSize() const { return DPRCSSize; }
+
+ void setGPRCalleeSavedArea1Size(unsigned s) { GPRCS1Size = s; }
+ void setGPRCalleeSavedArea2Size(unsigned s) { GPRCS2Size = s; }
+ void setDPRCalleeSavedAreaSize(unsigned s) { DPRCSSize = s; }
+
+ bool isGPRCalleeSavedArea1Frame(unsigned fi) const {
+ return GPRCS1Frames.count(fi);
+ }
+ bool isGPRCalleeSavedArea2Frame(unsigned fi) const {
+ return GPRCS2Frames.count(fi);
+ }
+ bool isDPRCalleeSavedAreaFrame(unsigned fi) const {
+ return DPRCSFrames.count(fi);
+ }
+
+ void addGPRCalleeSavedArea1Frame(unsigned fi) {
+ GPRCS1Frames.insert(fi);
+ }
+ void addGPRCalleeSavedArea2Frame(unsigned fi) {
+ GPRCS2Frames.insert(fi);
+ }
+ void addDPRCalleeSavedAreaFrame(unsigned fi) {
+ DPRCSFrames.insert(fi);
+ }
+
+ unsigned createJumpTableUId() {
+ return JumpTableUId++;
+ }
+};
+} // End llvm namespace
+
+#endif // ARMMACHINEFUNCTIONINFO_H