search for: r317825

...is is a source of optimized debugging bugs. If, as a part of the new framework, we could concisely express that a RAUW-style combine simply transfers debug values from A to B, we might define away some of these bugs [1]. > > Adrian put in place some infrastructure to do this in SelectionDAG (r317825). However, auditing/fixing debug value transfer issues in hand-written combines is time-consuming. I think it should be a goal of the new framework to make this a bit easier. +1 Do you and/or Adrian also have thought on testing debug values? Verification and testing strategies should/could be pa...

...f optimized debugging bugs. If, as a part of the new framework, we could concisely express that a RAUW-style combine simply transfers debug values from A to B, we might define away some of these bugs [1]. >>> >>> Adrian put in place some infrastructure to do this in SelectionDAG (r317825). However, auditing/fixing debug value transfer issues in hand-written combines is time-consuming. I think it should be a goal of the new framework to make this a bit easier. >> >> +1 >> >> Do you and/or Adrian also have thought on testing debug values? Verification and t...

Hi everyone, This RFC concerns the design and architecture of a generic machine instruction combiner/optimizer framework to be developed as part of the GISel pipeline. As we transition from correctness and reducing the fallback rate to SelectionDAG at -O0, we’re now starting to think about using GlobalISel with optimizations enabled. There are obviously many parts to this story as optimizations