Use the correct result value type instead of using getValueType(0)

in ExpandEXTRACT_VECTOR_ELT and SplitVectorOp. This fixes an abort
in the included testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42264 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/X86/extractelement-from-arg.ll

@@ -0,0 +1,7 @@
+; RUN: llvm-as %s -o - | llc -march=x86-64
+
+define void @test(float* %R, <4 x float> %X) {
+	%tmp = extractelement <4 x float> %X, i32 3
+	store float %tmp, float* %R
+	ret void
+}