Updated example figure and added graph figures

paper/Code/lincomb.ll

@@ -2,18 +2,19 @@ define void @lincomb(double* I, double* Ie, double* Id) {
   %N = call i8* @llvm.visc.getNode()
   %nidx = call i32 @llvm.visc.getNodeInstanceID.x(i8* %N)
   %nidy = call i32 @llvm.visc.getNodeInstanceID.y(i8* %N)
-  %vl = call i32 @llvm.visc.getVectorLength();
-  ;Compute base addresses for I, Id, Ie, L
-  %ptr_I = load <%vl x double>* I_base
-  %ptr_Id = load <%vl x double>* Id_base
-  %ptr_Ie = load <%vl x double>* Ie_base
+  %vl = call i32 @llvm.visc.getVectorLength(i32 8)
+  ;Index and base address calculation using %nidx, %nidy
+  ;for I, Id, Ie, L (not shown)
+  %pixel_I = load <%vl x double>* I_base
+  %pixel_Id = load <%vl x double>* Id_base
+  %pixel_Ie = load <%vl x double>* Ie_base
   %tmp = insertelement <%vl x double> undef,
                        double 2.0, i32 0
   %vec2 = shufflevector <%vl x double> %tmp,
                         <%vl x double> undef,
                         <%vl x i32> zeroinitializer
-  %mul = mul <%vl x double> %vec2, %ptr_I
-  %add = add <%vl x double> %ptr_Id, %ptr_Ie
+  %mul = mul <%vl x double> %vec2, %pixel_I
+  %add = add <%vl x double> %pixel_Id, %pixel_Ie
   %res = sub <%vl x double> %add, %mul
   store <%vl x double> %res, <%vl x double>* L_base
   ret void