SelectionDAGBuilder: Fix SPDescriptor not resetting GuardReg
This was causing problems when some functions use a GuardReg and some
don't as can happen when mixing SelectionDAG and FastISel generated
functions.
llvm-svn: 246075
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index 40f476c..854e6d0 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -516,6 +516,7 @@
void resetPerFunctionState() {
FailureMBB = nullptr;
Guard = nullptr;
+ GuardReg = 0;
}
MachineBasicBlock *getParentMBB() { return ParentMBB; }