Change MachineBasicBlock's vector of MachineInstr pointers into an

ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86CodeEmitter.cpp

@@ -212,8 +212,6 @@ namespace {
 bool X86TargetMachine::addPassesToEmitMachineCode(FunctionPassManager &PM,
                                                   MachineCodeEmitter &MCE) {
   PM.add(new Emitter(MCE));
-  // Delete machine code for this function
-  PM.add(createMachineCodeDeleter());
   return false;
 }
 
@@ -242,7 +240,7 @@ void Emitter::emitBasicBlock(MachineBasicBlock &MBB) {
     BasicBlockAddrs[MBB.getBasicBlock()] = Addr;
 
   for (MachineBasicBlock::iterator I = MBB.begin(), E = MBB.end(); I != E; ++I)
-    emitInstruction(**I);
+    emitInstruction(*I);
 }