149    Value * x1 = builder.CreateAdd(x0, builder.getInt32(1));  in linearSample()
151    Value * y1 = builder.CreateAdd(y0, builder.getInt32(1));  in linearSample()
158    index = builder.CreateAdd(index, x0);  in linearSample()
159    index = builder.CreateAdd(index, indexOffset);  in linearSample()
164    index = builder.CreateAdd(index, x1);  in linearSample()
165    index = builder.CreateAdd(index, indexOffset);  in linearSample()
170    index = builder.CreateAdd(index, x1);  in linearSample()
171    index = builder.CreateAdd(index, indexOffset);  in linearSample()
176    index = builder.CreateAdd(index, x0);  in linearSample()
177    index = builder.CreateAdd(index, indexOffset);  in linearSample()
186    h0 = builder.CreateAdd(h0, s0);  in linearSample()
190    h1 = builder.CreateAdd(h1, s3);  in linearSample()
195    sample = builder.CreateAdd(sample, h0);  in linearSample()
310    index = builder.CreateAdd(index, x);  in tex2D()
505    Value * index = builder.CreateAdd(builder.CreateMul(y, textureWidth), x);  in texCube()
518       textureData = pointSample(builder, textureData, builder.CreateAdd(indexOffset, index),  in texCube()