ahatanak added inline comments.
================ Comment at: lib/Basic/Targets.cpp:4244 + } else // allow locked atomics up to 4 bytes + MaxAtomicPromoteWidth = 32; + } ---------------- mgorny wrote: > dim wrote: > > Are you purposefully not setting `MaxAtomicInlineWidth` here? (It seems > > from `TargetInfo` that the default value is zero.) > > > Yes. I've based this on what's done for ARM. Unless I misunderstood > something, this means that on 'plain' i386 there is no inline atomics support > but we still want to do atomics-via-locking up to 32-bit types. I'm not sure > about 32/64 here to match i486. If there isn't a test case for plain i386, is it possible to add one (perhaps in test/Sema/atomic-ops.c)? https://reviews.llvm.org/D29542 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
