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Only gather frame info if debug or eh. 

llvm-svn: 33639
This commit is contained in:
Jim Laskey 2007-01-29 23:20:22 +00:00
parent 1c3633e461
commit 3f9f250928
4 changed files with 9 additions and 5 deletions
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5
llvm/include/llvm/CodeGen/MachineModuleInfo.h
View File

@ -36,6 +36,7 @@
#include "llvm/ADT/UniqueVector.h" #include "llvm/ADT/UniqueVector.h"
#include "llvm/GlobalValue.h" #include "llvm/GlobalValue.h"
#include "llvm/Pass.h" #include "llvm/Pass.h"
#include "llvm/Target/TargetOptions.h"
namespace llvm { namespace llvm {
@ -1025,6 +1026,10 @@ public:
/// ///
bool hasDebugInfo() const { return !CompileUnits.empty(); } bool hasDebugInfo() const { return !CompileUnits.empty(); }
/// needsFrameInfo - Returns true if we need to gather callee-saved register
/// move info for the frame.
bool needsFrameInfo() const { return hasDebugInfo() || ExceptionHandling; }
/// NextLabelID - Return the next unique label id. /// NextLabelID - Return the next unique label id.
/// ///
unsigned NextLabelID() { unsigned NextLabelID() {

1
llvm/lib/CodeGen/DwarfWriter.cpp
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@ -31,7 +31,6 @@
#include "llvm/Target/TargetData.h" #include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameInfo.h" #include "llvm/Target/TargetFrameInfo.h"
#include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include <ostream> #include <ostream>
#include <string> #include <string>
using namespace llvm; using namespace llvm;

4
llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
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@ -818,7 +818,7 @@ void PPCRegisterInfo::emitPrologue(MachineFunction &MF) const {
unsigned TargetAlign = MF.getTarget().getFrameInfo()->getStackAlignment(); unsigned TargetAlign = MF.getTarget().getFrameInfo()->getStackAlignment();
unsigned MaxAlign = MFI->getMaxAlignment(); unsigned MaxAlign = MFI->getMaxAlignment();
if (MMI) { if (MMI && MMI->needsFrameInfo()) {
// Mark effective beginning of when frame pointer becomes valid. // Mark effective beginning of when frame pointer becomes valid.
FrameLabelId = MMI->NextLabelID(); FrameLabelId = MMI->NextLabelID();
BuildMI(MBB, MBBI, TII.get(PPC::LABEL)).addImm(FrameLabelId); BuildMI(MBB, MBBI, TII.get(PPC::LABEL)).addImm(FrameLabelId);
@ -869,7 +869,7 @@ void PPCRegisterInfo::emitPrologue(MachineFunction &MF) const {
} }
} }
if (MMI) { if (MMI && MMI->needsFrameInfo()) {
std::vector<MachineMove> &Moves = MMI->getFrameMoves(); std::vector<MachineMove> &Moves = MMI->getFrameMoves();
if (NegFrameSize) { if (NegFrameSize) {

4
llvm/lib/Target/X86/X86RegisterInfo.cpp
View File

@ -1022,7 +1022,7 @@ void X86RegisterInfo::emitPrologue(MachineFunction &MF) const {
} }
} }
if (MMI) { if (MMI && MMI->needsFrameInfo()) {
// Mark effective beginning of when frame pointer becomes valid. // Mark effective beginning of when frame pointer becomes valid.
FrameLabelId = MMI->NextLabelID(); FrameLabelId = MMI->NextLabelID();
BuildMI(MBB, MBBI, TII.get(X86::LABEL)).addImm(FrameLabelId); BuildMI(MBB, MBBI, TII.get(X86::LABEL)).addImm(FrameLabelId);
@ -1052,7 +1052,7 @@ void X86RegisterInfo::emitPrologue(MachineFunction &MF) const {
MBB.insert(MBBI, MI); MBB.insert(MBBI, MI);
} }
if (MMI) { if (MMI && MMI->needsFrameInfo()) {
std::vector<MachineMove> &Moves = MMI->getFrameMoves(); std::vector<MachineMove> &Moves = MMI->getFrameMoves();
if (NumBytes) { if (NumBytes) {