1 files changed, 2 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
index fc965b879df..5eee15f6489 100644
--- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -2115,10 +2115,8 @@ Instruction *InstCombiner::visitSwitchInst(SwitchInst &SI) {
         for (SwitchInst::CaseIt i = SI.case_begin(), e = SI.case_end();
              i != e; ++i) {
           ConstantInt* CaseVal = i.getCaseValue();
-          Constant *LHS = LeadingKnownZeros
-                              ? ConstantExpr::getZExt(CaseVal, Cond->getType())
-                              : ConstantExpr::getSExt(CaseVal, Cond->getType());
-          Constant* NewCaseVal = ConstantExpr::getSub(LHS, AddRHS);
+          Constant* NewCaseVal = ConstantExpr::getSub(cast<Constant>(CaseVal),
+                                                      AddRHS);
           assert(isa<ConstantInt>(NewCaseVal) &&
                  "Result of expression should be constant");
           i.setValue(cast<ConstantInt>(NewCaseVal));