Hi, On Wed, 16 May 2018, Richard Biener wrote:
> > Are constant pool entries merged at compile time or at link time? I > > would presume it should be done at link time because otherwise you're > > only merging entries within a single compilation unit (which doesn't > > sound that useful in a big project with hundreds of source files), > > right? > > constant pool entries are merged at compile time. There's no such thing > as mergeable constant pool sections Actually there is in ELF. Mergable sections can not only hold strings, but also fixed-size entities (e.g. 4 or 8 byte constants). Those are merged content-wise at link time and references properly rewritten. Of course, those still aren't per-function. Ciao, Michael.
