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-rw-r--r--llvm/lib/Target/ARM/ARMConstantIslandPass.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMConstantIslandPass.cpp b/llvm/lib/Target/ARM/ARMConstantIslandPass.cpp
index 416c5fd5cd7..0bf2d374df6 100644
--- a/llvm/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/llvm/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -589,6 +589,8 @@ void ARMConstantIslands::doInitialJumpTablePlacement(
MachineBasicBlock *LastCorrectlyNumberedBB = nullptr;
for (MachineBasicBlock &MBB : *MF) {
auto MI = MBB.getLastNonDebugInstr();
+ if (MI == MBB.end())
+ continue;
unsigned JTOpcode;
switch (MI->getOpcode()) {
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