RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-23 04:16:42 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Don't call addFrameMove on XCore.

Browse Source 
getExceptionHandlingType is not ExceptionHandling::DwarfCFI on xcore, so
etFrameInstructions is never called. There is no point creating cfi
instructions if they are never used.

llvm-svn: 181979
This commit is contained in:
Rafael Espindola 2013-05-16 04:16:25 +00:00
parent 3995413b20
commit 24bf7876c2
1 changed files with 0 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
lib/Target/XCore/XCoreFrameLowering.cpp
View File

@ -136,16 +136,6 @@ void XCoreFrameLowering::emitPrologue(MachineFunction &MF) const {
// Show update of SP.
MCSymbol *FrameLabel = MMI->getContext().CreateTempSymbol();
BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(FrameLabel);
MachineLocation SPDst(MachineLocation::VirtualFP);
MachineLocation SPSrc(MachineLocation::VirtualFP, -FrameSize * 4);
MMI->addFrameMove(FrameLabel, SPDst, SPSrc);
if (LRSavedOnEntry) {
MachineLocation CSDst(MachineLocation::VirtualFP, 0);
MachineLocation CSSrc(XCore::LR);
MMI->addFrameMove(FrameLabel, CSDst, CSSrc);
}
}
}
if (saveLR) {
@ -156,9 +146,6 @@ void XCoreFrameLowering::emitPrologue(MachineFunction &MF) const {
if (emitFrameMoves) {
MCSymbol *SaveLRLabel = MMI->getContext().CreateTempSymbol();
BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(SaveLRLabel);
MachineLocation CSDst(MachineLocation::VirtualFP, LRSpillOffset);
MachineLocation CSSrc(XCore::LR);
MMI->addFrameMove(SaveLRLabel, CSDst, CSSrc);
}
}
@ -171,9 +158,6 @@ void XCoreFrameLowering::emitPrologue(MachineFunction &MF) const {
if (emitFrameMoves) {
MCSymbol *SaveR10Label = MMI->getContext().CreateTempSymbol();
BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(SaveR10Label);
MachineLocation CSDst(MachineLocation::VirtualFP, FPSpillOffset);
MachineLocation CSSrc(XCore::R10);
MMI->addFrameMove(SaveR10Label, CSDst, CSSrc);
}
// Set the FP from the SP.
unsigned FramePtr = XCore::R10;
@ -183,24 +167,6 @@ void XCoreFrameLowering::emitPrologue(MachineFunction &MF) const {
// Show FP is now valid.
MCSymbol *FrameLabel = MMI->getContext().CreateTempSymbol();
BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(FrameLabel);
MachineLocation SPDst(FramePtr);
MachineLocation SPSrc(MachineLocation::VirtualFP);
MMI->addFrameMove(FrameLabel, SPDst, SPSrc);
}
}
if (emitFrameMoves) {
// Frame moves for callee saved.
std::vector<std::pair<MCSymbol*, CalleeSavedInfo> >&SpillLabels =
XFI->getSpillLabels();
for (unsigned I = 0, E = SpillLabels.size(); I != E; ++I) {
MCSymbol *SpillLabel = SpillLabels[I].first;
CalleeSavedInfo &CSI = SpillLabels[I].second;
int Offset = MFI->getObjectOffset(CSI.getFrameIdx());
unsigned Reg = CSI.getReg();
MachineLocation CSDst(MachineLocation::VirtualFP, Offset);
MachineLocation CSSrc(Reg);
MMI->addFrameMove(SpillLabel, CSDst, CSSrc);
}
}
}