Add LiveIntervalUnion print methods, RegAllocGreedy::trySplit debug spew.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121783 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp
index 46cfbe7..324340a 100644
--- a/lib/CodeGen/RegAllocGreedy.cpp
+++ b/lib/CodeGen/RegAllocGreedy.cpp
@@ -269,6 +269,14 @@
unsigned RAGreedy::trySplit(LiveInterval &VirtReg, AllocationOrder &Order,
SmallVectorImpl<LiveInterval*>&SplitVRegs) {
NamedRegionTimer T("Splitter", TimerGroupName, TimePassesIsEnabled);
+ Order.rewind();
+ while (unsigned PhysReg = Order.next()) {
+ DEBUG({
+ query(VirtReg, PhysReg).print(dbgs(), TRI);
+ for (const unsigned *AI = TRI->getAliasSet(PhysReg); *AI; ++AI)
+ query(VirtReg, *AI).print(dbgs(), TRI);
+ });
+ }
return 0;
}