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.

llvm-svn: 53212

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Target/PIC16/PIC16RegisterInfo.cpp b/llvm/lib/Target/PIC16/PIC16RegisterInfo.cpp
index 88e84acfe38..9a83155e4f6 100644
--- a/llvm/lib/Target/PIC16/PIC16RegisterInfo.cpp
+++ b/llvm/lib/Target/PIC16/PIC16RegisterInfo.cpp
@@ -61,7 +61,7 @@ void PIC16RegisterInfo::reMaterialize(MachineBasicBlock &MBB,
                                       unsigned DestReg, 
                                       const MachineInstr *Orig) const 
 {
-  MachineInstr *MI = Orig->clone();
+  MachineInstr *MI = MBB.getParent()->CloneMachineInstr(Orig);
   MI->getOperand(0).setReg(DestReg);
   MBB.insert(I, MI);
 }