Hey, On Tue, 8 Feb 2022, Joseph Myers wrote:
> On Tue, 8 Feb 2022, Richard Biener via Gcc-patches wrote: > > > which I think is OK? That is, when the abstract machine > > arrives at 'int i;' then the previous content in 'i' goes > > away? Or would > > Yes, that's correct. "If an initialization is specified for the object, > it is performed each time the declaration or compound literal is reached > in the execution of the block; otherwise, the value becomes indeterminate > each time the declaration is reached.". Okay, that makes things easier then. We can put the birth clobbers at their point of declaration, just the storage associated with a decl needs to survive for the whole block. We still need to make sure that side entries skipping declarations correctly "allocate" such storage (by introducing proper conflicts with other objects), but at least values don't need to survive decls. Ciao, Michael.
