Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
that "machine" classes are used to represent the current state of
the code being compiled. Given this expanded name, we can start
moving other stuff into it. For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.
Update all the clients to match.
This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45467 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index 80fa71a..9100054 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -21,7 +21,7 @@
#include "llvm/Function.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/SSARegMap.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Support/CommandLine.h"
@@ -69,7 +69,7 @@
}
void VirtRegMap::grow() {
- unsigned LastVirtReg = MF.getSSARegMap()->getLastVirtReg();
+ unsigned LastVirtReg = MF.getRegInfo().getLastVirtReg();
Virt2PhysMap.grow(LastVirtReg);
Virt2StackSlotMap.grow(LastVirtReg);
Virt2ReMatIdMap.grow(LastVirtReg);
@@ -82,7 +82,7 @@
assert(MRegisterInfo::isVirtualRegister(virtReg));
assert(Virt2StackSlotMap[virtReg] == NO_STACK_SLOT &&
"attempt to assign stack slot to already spilled register");
- const TargetRegisterClass* RC = MF.getSSARegMap()->getRegClass(virtReg);
+ const TargetRegisterClass* RC = MF.getRegInfo().getRegClass(virtReg);
int frameIndex = MF.getFrameInfo()->CreateStackObject(RC->getSize(),
RC->getAlignment());
Virt2StackSlotMap[virtReg] = frameIndex;
@@ -139,14 +139,14 @@
OS << "********** REGISTER MAP **********\n";
for (unsigned i = MRegisterInfo::FirstVirtualRegister,
- e = MF.getSSARegMap()->getLastVirtReg(); i <= e; ++i) {
+ e = MF.getRegInfo().getLastVirtReg(); i <= e; ++i) {
if (Virt2PhysMap[i] != (unsigned)VirtRegMap::NO_PHYS_REG)
OS << "[reg" << i << " -> " << MRI->getName(Virt2PhysMap[i]) << "]\n";
}
for (unsigned i = MRegisterInfo::FirstVirtualRegister,
- e = MF.getSSARegMap()->getLastVirtReg(); i <= e; ++i)
+ e = MF.getRegInfo().getLastVirtReg(); i <= e; ++i)
if (Virt2StackSlotMap[i] != VirtRegMap::NO_STACK_SLOT)
OS << "[reg" << i << " -> fi#" << Virt2StackSlotMap[i] << "]\n";
OS << '\n';
@@ -197,7 +197,7 @@
if (!VRM.isAssignedReg(VirtReg)) {
int StackSlot = VRM.getStackSlot(VirtReg);
const TargetRegisterClass* RC =
- MF.getSSARegMap()->getRegClass(VirtReg);
+ MF.getRegInfo().getRegClass(VirtReg);
if (MO.isUse() &&
std::find(LoadedRegs.begin(), LoadedRegs.end(), VirtReg)
@@ -214,10 +214,10 @@
++NumStores;
}
}
- MF.setPhysRegUsed(PhysReg);
+ MF.getRegInfo().setPhysRegUsed(PhysReg);
MI.getOperand(i).setReg(PhysReg);
} else {
- MF.setPhysRegUsed(MO.getReg());
+ MF.getRegInfo().setPhysRegUsed(MO.getReg());
}
}
@@ -240,17 +240,18 @@
/// blocks that have low register pressure (the vreg may be spilled due to
/// register pressure in other blocks).
class VISIBILITY_HIDDEN LocalSpiller : public Spiller {
- SSARegMap *RegMap;
+ MachineRegisterInfo *RegInfo;
const MRegisterInfo *MRI;
const TargetInstrInfo *TII;
public:
bool runOnMachineFunction(MachineFunction &MF, VirtRegMap &VRM) {
- RegMap = MF.getSSARegMap();
+ RegInfo = &MF.getRegInfo();
MRI = MF.getTarget().getRegisterInfo();
TII = MF.getTarget().getInstrInfo();
DOUT << "\n**** Local spiller rewriting function '"
<< MF.getFunction()->getName() << "':\n";
- DOUT << "**** Machine Instrs (NOTE! Does not include spills and reloads!) ****\n";
+ DOUT << "**** Machine Instrs (NOTE! Does not include spills and reloads!)"
+ " ****\n";
DEBUG(MF.dump());
for (MachineFunction::iterator MBB = MF.begin(), E = MF.end();
@@ -672,7 +673,7 @@
// to undo a previous reuse.
MachineBasicBlock *MBB = MI->getParent();
const TargetRegisterClass *AliasRC =
- MBB->getParent()->getSSARegMap()->getRegClass(Op.VirtReg);
+ MBB->getParent()->getRegInfo().getRegClass(Op.VirtReg);
// Copy Op out of the vector and remove it, we're going to insert an
// explicit load for it.
@@ -971,14 +972,15 @@
if (!VRM.getPreSplitReg(VirtReg))
continue; // Split interval spilled again.
unsigned Phys = VRM.getPhys(VirtReg);
- MF.setPhysRegUsed(Phys);
+ RegInfo->setPhysRegUsed(Phys);
if (VRM.isReMaterialized(VirtReg)) {
MRI->reMaterialize(MBB, &MI, Phys,
VRM.getReMaterializedMI(VirtReg));
++NumReMats;
} else {
- const TargetRegisterClass* RC = RegMap->getRegClass(VirtReg);
- MRI->loadRegFromStackSlot(MBB, &MI, Phys, VRM.getStackSlot(VirtReg), RC);
+ const TargetRegisterClass* RC = RegInfo->getRegClass(VirtReg);
+ MRI->loadRegFromStackSlot(MBB, &MI, Phys, VRM.getStackSlot(VirtReg),
+ RC);
++NumLoads;
}
// This invalidates Phys.
@@ -997,7 +999,7 @@
bool isKill = SpillRegs[i].second;
if (!VRM.getPreSplitReg(VirtReg))
continue; // Split interval spilled again.
- const TargetRegisterClass *RC = RegMap->getRegClass(VirtReg);
+ const TargetRegisterClass *RC = RegInfo->getRegClass(VirtReg);
unsigned Phys = VRM.getPhys(VirtReg);
int StackSlot = VRM.getStackSlot(VirtReg);
MRI->storeRegToStackSlot(MBB, next(MII), Phys, isKill, StackSlot, RC);
@@ -1021,7 +1023,7 @@
if (MRegisterInfo::isPhysicalRegister(VirtReg)) {
// Ignore physregs for spilling, but remember that it is used by this
// function.
- MF.setPhysRegUsed(VirtReg);
+ RegInfo->setPhysRegUsed(VirtReg);
continue;
}
@@ -1032,7 +1034,7 @@
if (VRM.isAssignedReg(VirtReg)) {
// This virtual register was assigned a physreg!
unsigned Phys = VRM.getPhys(VirtReg);
- MF.setPhysRegUsed(Phys);
+ RegInfo->setPhysRegUsed(Phys);
if (MO.isDef())
ReusedOperands.markClobbered(Phys);
unsigned RReg = SubIdx ? MRI->getSubReg(Phys, SubIdx) : Phys;
@@ -1064,7 +1066,7 @@
// the right register file.
if (PhysReg &&
(SubIdx || MI.getOpcode() == TargetInstrInfo::EXTRACT_SUBREG)) {
- const TargetRegisterClass* RC = RegMap->getRegClass(VirtReg);
+ const TargetRegisterClass* RC = RegInfo->getRegClass(VirtReg);
if (!RC->contains(PhysReg))
PhysReg = 0;
}
@@ -1177,8 +1179,8 @@
continue;
}
- const TargetRegisterClass* RC = RegMap->getRegClass(VirtReg);
- MF.setPhysRegUsed(DesignatedReg);
+ const TargetRegisterClass* RC = RegInfo->getRegClass(VirtReg);
+ RegInfo->setPhysRegUsed(DesignatedReg);
ReusedOperands.markClobbered(DesignatedReg);
MRI->copyRegToReg(MBB, &MI, DesignatedReg, PhysReg, RC, RC);
@@ -1209,13 +1211,13 @@
PhysReg = ReusedOperands.GetRegForReload(PhysReg, &MI,
Spills, MaybeDeadStores, RegKills, KillOps, VRM);
- MF.setPhysRegUsed(PhysReg);
+ RegInfo->setPhysRegUsed(PhysReg);
ReusedOperands.markClobbered(PhysReg);
if (DoReMat) {
MRI->reMaterialize(MBB, &MI, PhysReg, VRM.getReMaterializedMI(VirtReg));
++NumReMats;
} else {
- const TargetRegisterClass* RC = RegMap->getRegClass(VirtReg);
+ const TargetRegisterClass* RC = RegInfo->getRegClass(VirtReg);
MRI->loadRegFromStackSlot(MBB, &MI, PhysReg, SSorRMId, RC);
++NumLoads;
}
@@ -1265,7 +1267,7 @@
if (unsigned InReg = Spills.getSpillSlotOrReMatPhysReg(SS)) {
DOUT << "Promoted Load To Copy: " << MI;
if (DestReg != InReg) {
- const TargetRegisterClass *RC = RegMap->getRegClass(VirtReg);
+ const TargetRegisterClass *RC = RegInfo->getRegClass(VirtReg);
MRI->copyRegToReg(MBB, &MI, DestReg, InReg, RC, RC);
// Revisit the copy so we make sure to notice the effects of the
// operation on the destreg (either needing to RA it if it's
@@ -1310,8 +1312,8 @@
unsigned PhysReg = Spills.getSpillSlotOrReMatPhysReg(SS);
SmallVector<MachineInstr*, 4> NewMIs;
// We can reuse this physreg as long as we are allowed to clobber
- // the value and there isn't an earlier def that has already clobbered the
- // physreg.
+ // the value and there isn't an earlier def that has already clobbered
+ // the physreg.
if (PhysReg &&
!TII->isStoreToStackSlot(&MI, SS) && // Not profitable!
DeadStore->findRegisterUseOperandIdx(PhysReg, true) != -1 &&
@@ -1425,7 +1427,7 @@
// The only vregs left are stack slot definitions.
int StackSlot = VRM.getStackSlot(VirtReg);
- const TargetRegisterClass *RC = RegMap->getRegClass(VirtReg);
+ const TargetRegisterClass *RC = RegInfo->getRegClass(VirtReg);
// If this def is part of a two-address operand, make sure to execute
// the store from the correct physical register.
@@ -1449,7 +1451,7 @@
}
}
- MF.setPhysRegUsed(PhysReg);
+ RegInfo->setPhysRegUsed(PhysReg);
unsigned RReg = SubIdx ? MRI->getSubReg(PhysReg, SubIdx) : PhysReg;
ReusedOperands.markClobbered(RReg);
MI.getOperand(i).setReg(RReg);