diff --git a/lib/CodeGen/GlobalISel/LegalizerInfo.cpp b/lib/CodeGen/GlobalISel/LegalizerInfo.cpp
index dfc4034e11a..5a7908ed811 100644
--- a/lib/CodeGen/GlobalISel/LegalizerInfo.cpp
+++ b/lib/CodeGen/GlobalISel/LegalizerInfo.cpp
@@ -485,7 +485,7 @@ LegalizerInfo::getAction(const LegalityQuery &Query) const {
 LegalizeActionStep
 LegalizerInfo::getAction(const MachineInstr &MI,
                          const MachineRegisterInfo &MRI) const {
-  SmallVector<LLT, 2> Types;
+  SmallVector<LLT, 8> Types;
   SmallBitVector SeenTypes(8);
   const MCOperandInfo *OpInfo = MI.getDesc().OpInfo;
   // FIXME: probably we'll need to cache the results here somehow?