R600/SI: rework input interpolation v2

v2: update CMakeLists.txt as well

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176626 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/R600/SIMachineFunctionInfo.cpp b/lib/Target/R600/SIMachineFunctionInfo.cpp
index e5fbf05..1a4e4cb 100644
--- a/lib/Target/R600/SIMachineFunctionInfo.cpp
+++ b/lib/Target/R600/SIMachineFunctionInfo.cpp
@@ -19,8 +19,8 @@
 
 SIMachineFunctionInfo::SIMachineFunctionInfo(const MachineFunction &MF)
   : MachineFunctionInfo(),
-    SPIPSInputAddr(0),
-    ShaderType(0) {
+    ShaderType(0),
+    PSInputAddr(0) {
 
   AttributeSet Set = MF.getFunction()->getAttributes();
   Attribute A = Set.getAttribute(AttributeSet::FunctionIndex,