Added register reassignment prototype to RAGreedy. It's a simple
heuristic to reshuffle register assignments when we can't find an
available reg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121388 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveIntervalUnion.h b/lib/CodeGen/LiveIntervalUnion.h
index 4425582..54761c7 100644
--- a/lib/CodeGen/LiveIntervalUnion.h
+++ b/lib/CodeGen/LiveIntervalUnion.h
@@ -159,10 +159,7 @@
}
void init(LiveInterval *VReg, LiveIntervalUnion *LIU) {
- if (VirtReg == VReg) {
- // We currently allow query objects to be reused acrossed live virtual
- // registers, but always for the same live interval union.
- assert(LiveUnion == LIU && "inconsistent initialization");
+ if (VirtReg == VReg && LiveUnion == LIU) {
// Retain cached results, e.g. firstInterference.
return;
}