Pool-allocation for MachineInstrs, MachineBasicBlocks, and
MachineMemOperands. The pools are owned by MachineFunctions.
This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53212 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/SparcISelLowering.cpp b/lib/Target/Sparc/SparcISelLowering.cpp
index 2f41813..342caf8 100644
--- a/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/lib/Target/Sparc/SparcISelLowering.cpp
@@ -901,7 +901,7 @@
// to set, the condition code register to branch on, the true/false values to
// select between, and a branch opcode to use.
const BasicBlock *LLVM_BB = BB->getBasicBlock();
- ilist<MachineBasicBlock>::iterator It = BB;
+ MachineFunction::iterator It = BB;
++It;
// thisMBB:
@@ -910,12 +910,12 @@
// [f]bCC copy1MBB
// fallthrough --> copy0MBB
MachineBasicBlock *thisMBB = BB;
- MachineBasicBlock *copy0MBB = new MachineBasicBlock(LLVM_BB);
- MachineBasicBlock *sinkMBB = new MachineBasicBlock(LLVM_BB);
- BuildMI(BB, TII.get(BROpcode)).addMBB(sinkMBB).addImm(CC);
MachineFunction *F = BB->getParent();
- F->getBasicBlockList().insert(It, copy0MBB);
- F->getBasicBlockList().insert(It, sinkMBB);
+ MachineBasicBlock *copy0MBB = F->CreateMachineBasicBlock(LLVM_BB);
+ MachineBasicBlock *sinkMBB = F->CreateMachineBasicBlock(LLVM_BB);
+ BuildMI(BB, TII.get(BROpcode)).addMBB(sinkMBB).addImm(CC);
+ F->insert(It, copy0MBB);
+ F->insert(It, sinkMBB);
// Update machine-CFG edges by transferring all successors of the current
// block to the new block which will contain the Phi node for the select.
sinkMBB->transferSuccessors(BB);
@@ -939,7 +939,7 @@
.addReg(MI->getOperand(2).getReg()).addMBB(copy0MBB)
.addReg(MI->getOperand(1).getReg()).addMBB(thisMBB);
- delete MI; // The pseudo instruction is gone now.
+ F->DeleteMachineInstr(MI); // The pseudo instruction is gone now.
return BB;
}
diff --git a/lib/Target/Sparc/SparcInstrInfo.cpp b/lib/Target/Sparc/SparcInstrInfo.cpp
index 67df87b..2476f4c 100644
--- a/lib/Target/Sparc/SparcInstrInfo.cpp
+++ b/lib/Target/Sparc/SparcInstrInfo.cpp
@@ -162,7 +162,7 @@
Opc = SP::STDFri;
else
assert(0 && "Can't load this register");
- MachineInstrBuilder MIB = BuildMI(get(Opc));
+ MachineInstrBuilder MIB = BuildMI(MF, get(Opc));
for (unsigned i = 0, e = Addr.size(); i != e; ++i) {
MachineOperand &MO = Addr[i];
if (MO.isRegister())
@@ -206,7 +206,7 @@
Opc = SP::LDDFri;
else
assert(0 && "Can't load this register");
- MachineInstrBuilder MIB = BuildMI(get(Opc), DestReg);
+ MachineInstrBuilder MIB = BuildMI(MF, get(Opc), DestReg);
for (unsigned i = 0, e = Addr.size(); i != e; ++i) {
MachineOperand &MO = Addr[i];
if (MO.isReg())
@@ -236,10 +236,10 @@
if (MI->getOperand(1).isRegister() && MI->getOperand(1).getReg() == SP::G0&&
MI->getOperand(0).isRegister() && MI->getOperand(2).isRegister()) {
if (OpNum == 0) // COPY -> STORE
- NewMI = BuildMI(get(SP::STri)).addFrameIndex(FI).addImm(0)
+ NewMI = BuildMI(MF, get(SP::STri)).addFrameIndex(FI).addImm(0)
.addReg(MI->getOperand(2).getReg());
else // COPY -> LOAD
- NewMI = BuildMI(get(SP::LDri), MI->getOperand(0).getReg())
+ NewMI = BuildMI(MF, get(SP::LDri), MI->getOperand(0).getReg())
.addFrameIndex(FI).addImm(0);
}
break;
@@ -250,12 +250,12 @@
if (OpNum == 0) { // COPY -> STORE
unsigned SrcReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
- NewMI = BuildMI(get(isFloat ? SP::STFri : SP::STDFri))
+ NewMI = BuildMI(MF, get(isFloat ? SP::STFri : SP::STDFri))
.addFrameIndex(FI).addImm(0).addReg(SrcReg, false, false, isKill);
} else { // COPY -> LOAD
unsigned DstReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
- NewMI = BuildMI(get(isFloat ? SP::LDFri : SP::LDDFri))
+ NewMI = BuildMI(MF, get(isFloat ? SP::LDFri : SP::LDDFri))
.addReg(DstReg, true, false, false, isDead).addFrameIndex(FI).addImm(0);
}
break;