Add an assertion, update DefInst even though no one uses it (dangling pointers
don't help anyone)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25081 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index 26498b7..f27ae2a 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -393,6 +393,7 @@
// Otherwise, reload it and remember that we have it.
PhysReg = VRM.getPhys(VirtReg);
+ assert(PhysReg && "Must map virtreg to physreg!");
const TargetRegisterClass* RC =
MBB.getParent()->getSSARegMap()->getRegClass(VirtReg);