Check that element type correct in vector insert element.

src/PNaClTranslator.cpp

Index: src/PNaClTranslator.cpp
diff --git a/src/PNaClTranslator.cpp b/src/PNaClTranslator.cpp
index ac9698e598e97d757d378a2e47eeb4fb9e13bee0..449332a3cbb6fe596457d6044b986b26426c8e9f 100644
--- a/src/PNaClTranslator.cpp
+++ b/src/PNaClTranslator.cpp
@@ -2037,7 +2037,11 @@ private:
     std::string Buffer;
     raw_string_ostream StrBuf(Buffer);
     StrBuf << "Value index " << Index << " not defined!";
-    Fatal(StrBuf.str());
+    Error(StrBuf.str());
+    // Recover and return some value.
+    if (!LocalOperands.empty())
+      return LocalOperands.front();
+    return Context->getGlobalConstantByID(0);
   }
 };
 
@@ -2288,6 +2292,16 @@ void FunctionParser::ProcessRecord() {
       appendErrorInstruction(Elt->getType());
       return;
     }
+    if (Ice::typeElementType(VecType) != Elt->getType()) {
+      std::string Buffer;
+      raw_string_ostream StrBuf(Buffer);
+      StrBuf << "Insertelement: Element type "
+             << Ice::typeString(Elt->getType()) << " doesn't match vector type "
+             << Ice::typeString(VecType);
+      Error(StrBuf.str());
+      appendErrorInstruction(Elt->getType());
+      return;
+    }
     CurrentNode->appendInst(Ice::InstInsertElement::create(
         Func.get(), getNextInstVar(VecType), Vec, Elt, Index));
     return;