Re-apply my liveintervalanalysis changes. Now with PR1207 fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34428 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index d67159d..bef2502 100644
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -118,7 +118,7 @@
const MRegisterInfo *MRI = MF->getTarget().getRegisterInfo();
if (livein_begin() != livein_end()) {
OS << "Live Ins:";
- for (livein_iterator I = livein_begin(), E = livein_end(); I != E; ++I)
+ for (const_livein_iterator I = livein_begin(),E = livein_end(); I != E; ++I)
OutputReg(OS, *I, MRI);
OS << "\n";
}
@@ -144,6 +144,12 @@
}
}
+void MachineBasicBlock::removeLiveIn(unsigned Reg) {
+ livein_iterator I = std::find(livein_begin(), livein_end(), Reg);
+ assert(I != livein_end() && "Not a live in!");
+ LiveIns.erase(I);
+}
+
void MachineBasicBlock::moveBefore(MachineBasicBlock *NewAfter) {
MachineFunction::BasicBlockListType &BBList =getParent()->getBasicBlockList();
getParent()->getBasicBlockList().splice(NewAfter, BBList, this);