//====- 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/MRegisterInfo.h"
+#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/ADT/BitVector.h"
/// Used to initialized Align, so must precede it.
bool isThumb;
- /// Align - required alignment. ARM functions and Thumb functions with
- /// constant pools require 4-byte alignment; other Thumb functions
- /// require only 2-byte alignment.
- unsigned Align;
+ /// 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.
///
/// processFunctionBeforeCalleeSavedScan().
bool HasStackFrame;
+ /// RestoreSPFromFP - True if epilogue should restore SP from FP. Set by
+ /// emitPrologue.
+ bool RestoreSPFromFP;
+
/// LRSpilledForFarJump - True if the LR register has been for spilled to
/// enable far jump.
bool LRSpilledForFarJump;
- /// R3IsLiveIn - True if R3 is live in to this function.
- /// FIXME: Remove when register scavenger for Thumb is done.
- bool R3IsLiveIn;
-
/// FramePtrSpillOffset - If HasStackFrame, this records the frame pointer
/// spill stack offset.
unsigned FramePtrSpillOffset;
///
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),
- Align(2U),
- VarArgsRegSaveSize(0), HasStackFrame(false),
- LRSpilledForFarJump(false), R3IsLiveIn(false),
+ isThumb(false),
+ hasThumb2(false),
+ VarArgsRegSaveSize(0), HasStackFrame(false), RestoreSPFromFP(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) {}
+ JumpTableUId(0), ConstPoolEntryUId(0), VarArgsFrameIndex(0),
+ HasITBlocks(false) {}
- ARMFunctionInfo(MachineFunction &MF) :
+ explicit ARMFunctionInfo(MachineFunction &MF) :
isThumb(MF.getTarget().getSubtarget<ARMSubtarget>().isThumb()),
- Align(isThumb ? 1U : 2U),
- VarArgsRegSaveSize(0), HasStackFrame(false),
- LRSpilledForFarJump(false), R3IsLiveIn(false),
+ hasThumb2(MF.getTarget().getSubtarget<ARMSubtarget>().hasThumb2()),
+ VarArgsRegSaveSize(0), HasStackFrame(false), RestoreSPFromFP(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) {}
+ JumpTableUId(0), ConstPoolEntryUId(0), VarArgsFrameIndex(0),
+ HasITBlocks(false) {}
bool isThumbFunction() const { return isThumb; }
-
- unsigned getAlign() const { return Align; }
- void setAlign(unsigned a) { Align = a; }
+ bool isThumb1OnlyFunction() const { return isThumb && !hasThumb2; }
+ bool isThumb2Function() const { return isThumb && hasThumb2; }
unsigned getVarArgsRegSaveSize() const { return VarArgsRegSaveSize; }
void setVarArgsRegSaveSize(unsigned s) { VarArgsRegSaveSize = s; }
bool hasStackFrame() const { return HasStackFrame; }
void setHasStackFrame(bool s) { HasStackFrame = s; }
+ bool shouldRestoreSPFromFP() const { return RestoreSPFromFP; }
+ void setShouldRestoreSPFromFP(bool s) { RestoreSPFromFP = s; }
+
bool isLRSpilledForFarJump() const { return LRSpilledForFarJump; }
void setLRIsSpilledForFarJump(bool s) { LRSpilledForFarJump = s; }
- // FIXME: Remove when register scavenger for Thumb is done.
- bool isR3LiveIn() const { return R3IsLiveIn; }
- void setR3IsLiveIn(bool l) { R3IsLiveIn = l; }
-
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; }
SpilledCSRegs.set(Reg);
}
- bool isCSRegisterSpilled(unsigned Reg) {
+ bool isCSRegisterSpilled(unsigned Reg) const {
return SpilledCSRegs[Reg];
}
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