//====- 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 is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
//===----------------------------------------------------------------------===//
//
// This file declares ARM-specific per-machine-function information.
#include "ARMSubtarget.h"
#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Target/TargetMachine.h"
+#include "llvm/ADT/BitVector.h"
namespace llvm {
class ARMFunctionInfo : public MachineFunctionInfo {
/// isThumb - True if this function is compiled under Thumb mode.
- ///
+ /// Used to initialized Align, so must precede it.
bool isThumb;
+ /// hasThumb2 - True if the target architecture supports Thumb2. Do not use
+ /// to determine if function is compiled under Thumb mode, for that use
+ /// 'isThumb'.
+ bool hasThumb2;
+
/// VarArgsRegSaveSize - Size of the register save area for vararg functions.
///
unsigned VarArgsRegSaveSize;
- /// FramePtrSpilled - True if FP register is spilled. Set by
+ /// HasStackFrame - True if this function has a stack frame. Set by
/// processFunctionBeforeCalleeSavedScan().
- bool FramePtrSpilled;
+ bool HasStackFrame;
- /// FramePtrSpillOffset - If FramePtrSpilled, this records the frame pointer
+ /// LRSpilledForFarJump - True if the LR register has been for spilled to
+ /// enable far jump.
+ bool LRSpilledForFarJump;
+
+ /// FramePtrSpillOffset - If HasStackFrame, this records the frame pointer
/// spill stack offset.
unsigned FramePtrSpillOffset;
/// 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;
+ BitVector GPRCS1Frames;
+ BitVector GPRCS2Frames;
+ BitVector DPRCSFrames;
+
+ /// SpilledCSRegs - A BitVector mask of all spilled callee-saved registers.
+ ///
+ BitVector SpilledCSRegs;
/// JumpTableUId - Unique id for jumptables.
///
unsigned JumpTableUId;
+ unsigned ConstPoolEntryUId;
+
+ /// VarArgsFrameIndex - FrameIndex for start of varargs area.
+ int VarArgsFrameIndex;
+
+ /// HasITBlocks - True if IT blocks have been inserted.
+ bool HasITBlocks;
+
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) :
+ hasThumb2(false),
+ VarArgsRegSaveSize(0), HasStackFrame(false),
+ LRSpilledForFarJump(false),
+ FramePtrSpillOffset(0), GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
+ GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0),
+ GPRCS1Frames(0), GPRCS2Frames(0), DPRCSFrames(0),
+ JumpTableUId(0), ConstPoolEntryUId(0), VarArgsFrameIndex(0),
+ HasITBlocks(false) {}
+
+ explicit 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) {}
+ hasThumb2(MF.getTarget().getSubtarget<ARMSubtarget>().hasThumb2()),
+ VarArgsRegSaveSize(0), HasStackFrame(false),
+ LRSpilledForFarJump(false),
+ FramePtrSpillOffset(0), GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
+ GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0),
+ GPRCS1Frames(32), GPRCS2Frames(32), DPRCSFrames(32),
+ SpilledCSRegs(MF.getTarget().getRegisterInfo()->getNumRegs()),
+ JumpTableUId(0), ConstPoolEntryUId(0), VarArgsFrameIndex(0),
+ HasITBlocks(false) {}
bool isThumbFunction() const { return isThumb; }
+ bool isThumb1OnlyFunction() const { return isThumb && !hasThumb2; }
+ bool isThumb2Function() const { return isThumb && hasThumb2; }
unsigned getVarArgsRegSaveSize() const { return VarArgsRegSaveSize; }
void setVarArgsRegSaveSize(unsigned s) { VarArgsRegSaveSize = s; }
- bool isFramePtrSpilled() const { return FramePtrSpilled; }
- void setFramePtrSpilled(bool s) { FramePtrSpilled = s; }
+ bool hasStackFrame() const { return HasStackFrame; }
+ void setHasStackFrame(bool s) { HasStackFrame = s; }
+
+ bool isLRSpilledForFarJump() const { return LRSpilledForFarJump; }
+ void setLRIsSpilledForFarJump(bool s) { LRSpilledForFarJump = 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 setGPRCalleeSavedArea2Size(unsigned s) { GPRCS2Size = s; }
void setDPRCalleeSavedAreaSize(unsigned s) { DPRCSSize = s; }
- bool isGPRCalleeSavedArea1Frame(unsigned fi) const {
- return GPRCS1Frames.count(fi);
+ bool isGPRCalleeSavedArea1Frame(int fi) const {
+ if (fi < 0 || fi >= (int)GPRCS1Frames.size())
+ return false;
+ return GPRCS1Frames[fi];
+ }
+ bool isGPRCalleeSavedArea2Frame(int fi) const {
+ if (fi < 0 || fi >= (int)GPRCS2Frames.size())
+ return false;
+ return GPRCS2Frames[fi];
+ }
+ bool isDPRCalleeSavedAreaFrame(int fi) const {
+ if (fi < 0 || fi >= (int)DPRCSFrames.size())
+ return false;
+ return DPRCSFrames[fi];
+ }
+
+ void addGPRCalleeSavedArea1Frame(int fi) {
+ if (fi >= 0) {
+ int Size = GPRCS1Frames.size();
+ if (fi >= Size) {
+ Size *= 2;
+ if (fi >= Size)
+ Size = fi+1;
+ GPRCS1Frames.resize(Size);
+ }
+ GPRCS1Frames[fi] = true;
+ }
}
- bool isGPRCalleeSavedArea2Frame(unsigned fi) const {
- return GPRCS2Frames.count(fi);
+ void addGPRCalleeSavedArea2Frame(int fi) {
+ if (fi >= 0) {
+ int Size = GPRCS2Frames.size();
+ if (fi >= Size) {
+ Size *= 2;
+ if (fi >= Size)
+ Size = fi+1;
+ GPRCS2Frames.resize(Size);
+ }
+ GPRCS2Frames[fi] = true;
+ }
}
- bool isDPRCalleeSavedAreaFrame(unsigned fi) const {
- return DPRCSFrames.count(fi);
+ void addDPRCalleeSavedAreaFrame(int fi) {
+ if (fi >= 0) {
+ int Size = DPRCSFrames.size();
+ if (fi >= Size) {
+ Size *= 2;
+ if (fi >= Size)
+ Size = fi+1;
+ DPRCSFrames.resize(Size);
+ }
+ DPRCSFrames[fi] = true;
+ }
}
- void addGPRCalleeSavedArea1Frame(unsigned fi) {
- GPRCS1Frames.insert(fi);
+ void setCSRegisterIsSpilled(unsigned Reg) {
+ SpilledCSRegs.set(Reg);
}
- void addGPRCalleeSavedArea2Frame(unsigned fi) {
- GPRCS2Frames.insert(fi);
+
+ bool isCSRegisterSpilled(unsigned Reg) const {
+ return SpilledCSRegs[Reg];
}
- void addDPRCalleeSavedAreaFrame(unsigned fi) {
- DPRCSFrames.insert(fi);
+
+ const BitVector &getSpilledCSRegisters() const {
+ return SpilledCSRegs;
}
unsigned createJumpTableUId() {
return JumpTableUId++;
}
+
+ unsigned getNumJumpTables() const {
+ return JumpTableUId;
+ }
+
+ void initConstPoolEntryUId(unsigned UId) {
+ ConstPoolEntryUId = UId;
+ }
+
+ unsigned getNumConstPoolEntries() const {
+ return ConstPoolEntryUId;
+ }
+
+ unsigned createConstPoolEntryUId() {
+ return ConstPoolEntryUId++;
+ }
+
+ int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
+ void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
+
+ bool hasITBlocks() const { return HasITBlocks; }
+ void setHasITBlocks(bool h) { HasITBlocks = h; }
};
} // End llvm namespace
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