wmi accepted this revision. wmi added a comment. In D107876#2939691 <https://reviews.llvm.org/D107876#2939691>, @hoy wrote:
> In D107876#2939624 <https://reviews.llvm.org/D107876#2939624>, @wmi wrote: > >> Could you remind me the discriminator difference between debug info based >> AFDO and pseudo probe based AFDO? I forgot it. I am sure it is described in >> some patch but I havn't found it. Give me a pointer is good enough. > > In short, unlike block pseudo probe, a callsite probe relies on the calliste > discriminator to be tracked. This has a couple usage: 1. to track direct call > and indirect callsite 2. to model inline contexts with a list of callsite > probes. > > A probe discriminator is treated as empty or null for AutoFDO since it has > lowest three bits as "111". Thanks for the explanation. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D107876/new/ https://reviews.llvm.org/D107876 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
