class TargetData;
class TargetRegisterClass;
class Type;
-class MachineDebugInfo;
+class MachineModuleInfo;
class MachineFunction;
/// The CalleeSavedInfo class tracks the information need to locate where a
// StackObject - Represent a single object allocated on the stack.
struct StackObject {
// The size of this object on the stack. 0 means a variable sized object
- unsigned Size;
+ uint64_t Size;
// Alignment - The required alignment of this stack slot.
unsigned Alignment;
// SPOffset - The offset of this object from the stack pointer on entry to
// the function. This field has no meaning for a variable sized element.
- int SPOffset;
+ int64_t SPOffset;
- StackObject(unsigned Sz, unsigned Al, int SP)
+ StackObject(uint64_t Sz, unsigned Al, int64_t SP)
: Size(Sz), Alignment(Al), SPOffset(SP) {}
};
/// above. It then updates StackSize to contain the number of bytes that need
/// to be allocated on entry to the function.
///
- unsigned StackSize;
+ uint64_t StackSize;
+
+ /// OffsetAdjustment - The amount that a frame offset needs to be adjusted to
+ /// have the actual offset from the stack/frame pointer. The calculation is
+ /// MFI->getObjectOffset(Index) + StackSize - TFI.getOffsetOfLocalArea() +
+ /// OffsetAdjustment. If OffsetAdjustment is zero (default) then offsets are
+ /// away from TOS. If OffsetAdjustment == StackSize then offsets are toward
+ /// TOS.
+ int OffsetAdjustment;
/// MaxAlignment - The prolog/epilog code inserter may process objects
/// that require greater alignment than the default alignment the target
/// handling.
std::vector<CalleeSavedInfo> CSInfo;
- /// DebugInfo - This field is set (via setMachineDebugInfo) by a debug info
+ /// MMI - This field is set (via setMachineModuleInfo) by a module info
/// consumer (ex. DwarfWriter) to indicate that frame layout information
/// should be acquired. Typically, it's the responsibility of the target's
- /// MRegisterInfo prologue/epilogue emitting code to inform MachineDebugInfo
+ /// MRegisterInfo prologue/epilogue emitting code to inform MachineModuleInfo
/// of frame layouts.
- MachineDebugInfo *DebugInfo;
+ MachineModuleInfo *MMI;
public:
MachineFrameInfo() {
- NumFixedObjects = StackSize = MaxAlignment = 0;
+ StackSize = NumFixedObjects = OffsetAdjustment = MaxAlignment = 0;
HasVarSizedObjects = false;
HasCalls = false;
MaxCallFrameSize = 0;
- DebugInfo = 0;
+ MMI = 0;
}
/// hasStackObjects - Return true if there are any stack objects in this
/// getObjectSize - Return the size of the specified object
///
- int getObjectSize(int ObjectIdx) const {
+ int64_t getObjectSize(int ObjectIdx) const {
assert(ObjectIdx+NumFixedObjects < Objects.size() && "Invalid Object Idx!");
return Objects[ObjectIdx+NumFixedObjects].Size;
}
/// getObjectOffset - Return the assigned stack offset of the specified object
/// from the incoming stack pointer.
///
- int getObjectOffset(int ObjectIdx) const {
+ int64_t getObjectOffset(int ObjectIdx) const {
assert(ObjectIdx+NumFixedObjects < Objects.size() && "Invalid Object Idx!");
return Objects[ObjectIdx+NumFixedObjects].SPOffset;
}
/// setObjectOffset - Set the stack frame offset of the specified object. The
/// offset is relative to the stack pointer on entry to the function.
///
- void setObjectOffset(int ObjectIdx, int SPOffset) {
+ void setObjectOffset(int ObjectIdx, int64_t SPOffset) {
assert(ObjectIdx+NumFixedObjects < Objects.size() && "Invalid Object Idx!");
Objects[ObjectIdx+NumFixedObjects].SPOffset = SPOffset;
}
/// all of the fixed size frame objects. This is only valid after
/// Prolog/Epilog code insertion has finalized the stack frame layout.
///
- unsigned getStackSize() const { return StackSize; }
+ uint64_t getStackSize() const { return StackSize; }
/// setStackSize - Set the size of the stack...
///
- void setStackSize(unsigned Size) { StackSize = Size; }
+ void setStackSize(uint64_t Size) { StackSize = Size; }
+
+ /// getOffsetAdjustment - Return the correction for frame offsets.
+ ///
+ int getOffsetAdjustment() const { return OffsetAdjustment; }
+
+ /// setOffsetAdjustment - Set the correction for frame offsets.
+ ///
+ void setOffsetAdjustment(int Adj) { OffsetAdjustment = Adj; }
/// getMaxAlignment - Return the alignment in bytes that this function must be
/// aligned to, which is greater than the default stack alignment provided by
/// All fixed objects should be created before other objects are created for
/// efficiency. This returns an index with a negative value.
///
- int CreateFixedObject(unsigned Size, int SPOffset) {
+ int CreateFixedObject(uint64_t Size, int64_t SPOffset) {
assert(Size != 0 && "Cannot allocate zero size fixed stack objects!");
Objects.insert(Objects.begin(), StackObject(Size, 1, SPOffset));
return -++NumFixedObjects;
}
+ /// isFixedObjectIndex - Returns true if the specified index corresponds to a
+ /// fixed stack object.
+ bool isFixedObjectIndex(int ObjectIdx) const {
+ return ObjectIdx < 0 && (ObjectIdx >= -(int)NumFixedObjects);
+ }
+
/// CreateStackObject - Create a new statically sized stack object, returning
/// a postive identifier to represent it.
///
- int CreateStackObject(unsigned Size, unsigned Alignment) {
+ int CreateStackObject(uint64_t Size, unsigned Alignment) {
// Keep track of the maximum alignment.
if (MaxAlignment < Alignment) MaxAlignment = Alignment;
CSInfo = CSI;
}
- /// getMachineDebugInfo - Used by a prologue/epilogue emitter (MRegisterInfo)
+ /// getMachineModuleInfo - Used by a prologue/epilogue emitter (MRegisterInfo)
/// to provide frame layout information.
- MachineDebugInfo *getMachineDebugInfo() const { return DebugInfo; }
+ MachineModuleInfo *getMachineModuleInfo() const { return MMI; }
- /// setMachineDebugInfo - Used by a debug consumer (DwarfWriter) to indicate
- /// that frame layout information should be gathered.
- void setMachineDebugInfo(MachineDebugInfo *DI) { DebugInfo = DI; }
+ /// setMachineModuleInfo - Used by a meta info consumer (DwarfWriter) to
+ /// indicate that frame layout information should be gathered.
+ void setMachineModuleInfo(MachineModuleInfo *mmi) { MMI = mmi; }
/// print - Used by the MachineFunction printer to print information about
/// stack objects. Implemented in MachineFunction.cpp
projects / oota-llvm.git / blobdiff