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llvm-svn: 27574
This commit is contained in:
Jim Laskey 2006-04-10 23:09:19 +00:00
parent 2d37f920ad
commit dca2655daa
3 changed files with 14 additions and 15 deletions
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5
llvm/include/llvm/Target/MRegisterInfo.h
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@ -359,11 +359,6 @@ public:
/// address can be found. /// address can be found.
virtual unsigned getRARegister() const = 0; virtual unsigned getRARegister() const = 0;
/// getStackDirection - This method should return the factor by which stacks
/// grow. The tyical value is -4 which is the grows negatively in 4 byte
/// increments.
virtual int getStackDirection() const;
/// getLocation - This method should return the actual location of a frame /// getLocation - This method should return the actual location of a frame
/// variable given the frame index. The location is returned in ML. /// variable given the frame index. The location is returned in ML.
/// Subclasses should override this method for special handling of frame /// Subclasses should override this method for special handling of frame

17
llvm/lib/CodeGen/DwarfWriter.cpp
View File

@ -25,6 +25,7 @@
#include "llvm/Support/Mangler.h" #include "llvm/Support/Mangler.h"
#include "llvm/Target/MRegisterInfo.h" #include "llvm/Target/MRegisterInfo.h"
#include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetFrameInfo.h"
#include <iostream> #include <iostream>
@ -1829,8 +1830,13 @@ void DwarfWriter::EmitFrameMoves(const char *BaseLabel, unsigned BaseLabelID,
EmitULEB128Bytes(RI->getDwarfRegNum(Src.getRegister())); EmitULEB128Bytes(RI->getDwarfRegNum(Src.getRegister()));
EOL("Register"); EOL("Register");
} }
EmitULEB128Bytes(Src.getOffset() / RI->getStackDirection()); int stackGrowth =
Asm->TM.getFrameInfo()->getStackGrowthDirection() ==
TargetFrameInfo::StackGrowsUp ?
AddressSize : -AddressSize;
EmitULEB128Bytes(Src.getOffset() / stackGrowth);
EOL("Offset"); EOL("Offset");
} else { } else {
} }
@ -2049,6 +2055,11 @@ void DwarfWriter::EmitDebugLines() const {
/// EmitInitialDebugFrame - Emit common frame info into a debug frame section. /// EmitInitialDebugFrame - Emit common frame info into a debug frame section.
/// ///
void DwarfWriter::EmitInitialDebugFrame() { void DwarfWriter::EmitInitialDebugFrame() {
int stackGrowth =
Asm->TM.getFrameInfo()->getStackGrowthDirection() ==
TargetFrameInfo::StackGrowsUp ?
AddressSize : -AddressSize;
// Start the dwarf frame section. // Start the dwarf frame section.
Asm->SwitchSection(DwarfFrameSection, 0); Asm->SwitchSection(DwarfFrameSection, 0);
@ -2061,7 +2072,7 @@ void DwarfWriter::EmitInitialDebugFrame() {
EmitInt8(DW_CIE_VERSION); EOL("CIE Version"); EmitInt8(DW_CIE_VERSION); EOL("CIE Version");
EmitString(""); EOL("CIE Augmentation"); EmitString(""); EOL("CIE Augmentation");
EmitULEB128Bytes(1); EOL("CIE Code Alignment Factor"); EmitULEB128Bytes(1); EOL("CIE Code Alignment Factor");
EmitSLEB128Bytes(RI->getStackDirection()); EOL("CIE Data Alignment Factor"); EmitSLEB128Bytes(stackGrowth); EOL("CIE Data Alignment Factor");
EmitInt8(RI->getDwarfRegNum(RI->getRARegister())); EOL("CIE RA Column"); EmitInt8(RI->getDwarfRegNum(RI->getRARegister())); EOL("CIE RA Column");
std::vector<MachineMove *> Moves; std::vector<MachineMove *> Moves;

7
llvm/lib/Target/MRegisterInfo.cpp
View File

@ -44,13 +44,6 @@ std::vector<bool> MRegisterInfo::getAllocatableSet(MachineFunction &MF) const {
return Allocatable; return Allocatable;
} }
/// getStackDirection - This method should return the factor by which stacks
/// grow. The tyical value is -4 which is the grows negatively in 4 byte
/// increments.
int MRegisterInfo::getStackDirection() const {
return -sizeof(int32_t);
}
/// getLocation - This method should return the actual location of a frame /// getLocation - This method should return the actual location of a frame
/// variable given the frame index. The location is returned in ML. /// variable given the frame index. The location is returned in ML.
/// Subclasses should override this method for special handling of frame /// Subclasses should override this method for special handling of frame