Expire any active intervals left when register allocation is done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10448 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index a50574c..8645a2b 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -269,6 +269,18 @@
}
}
}
+ // expire any remaining active intervals
+ for (IntervalPtrs::iterator i = active_.begin(); i != active_.end(); ++i) {
+ unsigned reg = (*i)->reg;
+ DEBUG(std::cerr << "\t\tinterval " << **i << " expired\n");
+ if (reg < MRegisterInfo::FirstVirtualRegister) {
+ clearReservedPhysReg(reg);
+ }
+ else {
+ p2vMap_[v2pMap_[reg]] = 0;
+ }
+ // remove interval from active
+ }
DEBUG(std::cerr << "finished register allocation\n");
DEBUG(printVirt2PhysMap());