I don't mean to be snide, but there's no paper on it because it's pretty much something you can learn in compiler 101. Without being able to assume that UB doesn't happen, useful optimizations become impossible very quickly.
You are being snide and inaccurate. Studies show 80% or more of GCC optimization improvements come from the core simple methods. Trying to compensate for the lack of data to support your argument by claiming (falsely) it's taught in an elementary course is weak.
Please link these studies, or describe your "core simple methods", because it is likely that they rely on programs not exhibiting undefined behavior. I mean, even the most simple optimizations like eliminating unused variables or inlining functions (what if you reach into the stack to detect these?) fall apart. These were taught within the first couple weeks of my compiler optimizations class, and I certainly hope that they were part of yours, because I can't imagine what you could have possibly gone over without starting off with this.