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Have MachineFunction cache a pointer to the subtarget to make lookups

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shorter/easier and have the DAG use that to do the same lookup. This
can be used in the future for TargetMachine based caching lookups from
the MachineFunction easily.

Update the MIPS subtarget switching machinery to update this pointer
at the same time it runs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214838 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2014-08-05 02:39:49 +00:00
parent c2328d552c
commit 6035518e3b
136 changed files with 491 additions and 739 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/Target/SystemZ/SystemZFrameLowering.cpp
+8 -11
View File
@@ -66,8 +66,7 @@ processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
RegScavenger *RS) const {
MachineFrameInfo *MFFrame = MF.getFrameInfo();
MachineRegisterInfo &MRI = MF.getRegInfo();
const TargetRegisterInfo *TRI =
MF.getTarget().getSubtargetImpl()->getRegisterInfo();
const TargetRegisterInfo *TRI = MF.getSubtarget().getRegisterInfo();
bool HasFP = hasFP(MF);
SystemZMachineFunctionInfo *MFI = MF.getInfo<SystemZMachineFunctionInfo>();
bool IsVarArg = MF.getFunction()->isVarArg();
@@ -111,7 +110,7 @@ processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
static void addSavedGPR(MachineBasicBlock &MBB, MachineInstrBuilder &MIB,
unsigned GPR64, bool IsImplicit) {
const TargetRegisterInfo *RI =
MBB.getParent()->getTarget().getSubtargetImpl()->getRegisterInfo();
MBB.getParent()->getSubtarget().getRegisterInfo();
unsigned GPR32 = RI->getSubReg(GPR64, SystemZ::subreg_l32);
bool IsLive = MBB.isLiveIn(GPR64) || MBB.isLiveIn(GPR32);
if (!IsLive || !IsImplicit) {
@@ -130,8 +129,7 @@ spillCalleeSavedRegisters(MachineBasicBlock &MBB,
return false;
MachineFunction &MF = *MBB.getParent();
const TargetInstrInfo *TII =
MF.getTarget().getSubtargetImpl()->getInstrInfo();
const TargetInstrInfo *TII = MF.getSubtarget().getInstrInfo();
SystemZMachineFunctionInfo *ZFI = MF.getInfo<SystemZMachineFunctionInfo>();
bool IsVarArg = MF.getFunction()->isVarArg();
DebugLoc DL = MBBI != MBB.end() ? MBBI->getDebugLoc() : DebugLoc();
@@ -220,8 +218,7 @@ restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
return false;
MachineFunction &MF = *MBB.getParent();
const TargetInstrInfo *TII =
MF.getTarget().getSubtargetImpl()->getInstrInfo();
const TargetInstrInfo *TII = MF.getSubtarget().getInstrInfo();
SystemZMachineFunctionInfo *ZFI = MF.getInfo<SystemZMachineFunctionInfo>();
bool HasFP = hasFP(MF);
DebugLoc DL = MBBI != MBB.end() ? MBBI->getDebugLoc() : DebugLoc();
@@ -315,8 +312,8 @@ static void emitIncrement(MachineBasicBlock &MBB,
void SystemZFrameLowering::emitPrologue(MachineFunction &MF) const {
MachineBasicBlock &MBB = MF.front();
MachineFrameInfo *MFFrame = MF.getFrameInfo();
auto *ZII = static_cast<const SystemZInstrInfo *>(
MF.getTarget().getSubtargetImpl()->getInstrInfo());
auto *ZII =
static_cast<const SystemZInstrInfo *>(MF.getSubtarget().getInstrInfo());
SystemZMachineFunctionInfo *ZFI = MF.getInfo<SystemZMachineFunctionInfo>();
MachineBasicBlock::iterator MBBI = MBB.begin();
MachineModuleInfo &MMI = MF.getMMI();
@@ -412,8 +409,8 @@ void SystemZFrameLowering::emitPrologue(MachineFunction &MF) const {
void SystemZFrameLowering::emitEpilogue(MachineFunction &MF,
MachineBasicBlock &MBB) const {
MachineBasicBlock::iterator MBBI = MBB.getLastNonDebugInstr();
auto *ZII = static_cast<const SystemZInstrInfo *>(
MF.getTarget().getSubtargetImpl()->getInstrInfo());
auto *ZII =
static_cast<const SystemZInstrInfo *>(MF.getSubtarget().getInstrInfo());
SystemZMachineFunctionInfo *ZFI = MF.getInfo<SystemZMachineFunctionInfo>();
// Skip the return instruction.