For PR950:

The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/IndVarSimplify.cpp

@@ -523,9 +523,8 @@ void IndVarSimplify::runOnLoop(Loop *L) {
       if (!InsertedSizes[IndVars[i].first->getType()->getPrimitiveSize()]) {
         PHINode *PN = IndVars[i].first;
         InsertedSizes[PN->getType()->getPrimitiveSize()] = true;
-        Instruction *New = new CastInst(IndVar,
-                                        PN->getType()->getUnsignedVersion(),
-                                        "indvar", InsertPt);
+        Instruction *New = CastInst::create(Instruction::Trunc, IndVar, 
+            PN->getType()->getUnsignedVersion(), "indvar", InsertPt);
         Rewriter.addInsertedValue(New, SE->getSCEV(New));
       }
   }