BranchFolding - IsBetterFallthrough - assert non-null pointers. NFCI.
Silences static analyzer null dereference warnings.
llvm-svn: 373823
diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp
index 6c997a7..b0d1599 100644
--- a/llvm/lib/CodeGen/BranchFolding.cpp
+++ b/llvm/lib/CodeGen/BranchFolding.cpp
@@ -1307,6 +1307,8 @@
/// result in infinite loops.
static bool IsBetterFallthrough(MachineBasicBlock *MBB1,
MachineBasicBlock *MBB2) {
+ assert(MBB1 && MBB2 && "Unknown MachineBasicBlock");
+
// Right now, we use a simple heuristic. If MBB2 ends with a call, and
// MBB1 doesn't, we prefer to fall through into MBB1. This allows us to
// optimize branches that branch to either a return block or an assert block