Added llvm_unreachable to address warning: this statement may fall through. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305144 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/llvm-stress/llvm-stress.cpp b/tools/llvm-stress/llvm-stress.cpp
index 74b7735f8cd15f568f01fdb848a6c0c36b5e03c2..f1cdc5fa105655ea82652aeb47beff5b23ed5500 100644 (file)
--- a/tools/llvm-stress/llvm-stress.cpp
+++ b/tools/llvm-stress/llvm-stress.cpp
@@ -382,6 +382,7 @@ struct ConstModifier: public Modifier {
       switch (Ran->Rand() % 2) {
       case 0: if (Ty->getScalarType()->isIntegerTy())
                 return PT->push_back(ConstantVector::getAllOnesValue(Ty));
+              llvm_unreachable("Unexpected state");
       case 1: if (Ty->getScalarType()->isIntegerTy())
                 return PT->push_back(ConstantVector::getNullValue(Ty));
       }
@@ -407,9 +408,11 @@ struct ConstModifier: public Modifier {
       case 0: if (Ty->isIntegerTy())
                 return PT->push_back(ConstantInt::get(Ty,
                   APInt::getAllOnesValue(Ty->getPrimitiveSizeInBits())));
+              llvm_unreachable("Unexpected state");
       case 1: if (Ty->isIntegerTy())
                 return PT->push_back(ConstantInt::get(Ty,
                   APInt::getNullValue(Ty->getPrimitiveSizeInBits())));
+              llvm_unreachable("Unexpected state");
       case 2: case 3: case 4: case 5:
       case 6: if (Ty->isIntegerTy())
                 PT->push_back(ConstantInt::get(Ty, Ran->Rand()));