lenary added a comment. In D142410#4076389 <https://reviews.llvm.org/D142410#4076389>, @philipp.tomsich wrote:
> When looking at "ARM DDI 0487G.a", on page A2-68 under the heading > "Additional functionality added to Armv8.0 in later releases" in the > definition-list item "FEAT_SSBS, Speculative Store Bypass Safe": > >> This feature is OPTIONAL in Armv8.0 implementations and mandatory in Armv8.5 >> implementations. > > There is a to FEAT_SBSS in the backlink in "A2.8 The Armv8.5 architecture > extension", under the subsection "A2.8.3 Features added to earlier > extensions", in the bullet-list labeled "The features that have been added to > earlier architectural extensions are:" I cited version `I.a`, which is later than version `G.a`. Looking at the errata for version `G.b`, erratum R18653 (page 93) is where it was relaxed to not be mandatory from v8.5a. Errata document link: https://developer.arm.com/documentation/102105/gb-05/?lang=en (I'm just happy this was in the first errata document I looked for!) Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D142410/new/ https://reviews.llvm.org/D142410 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
