On 02/11/2018 13:53, Richard Biener wrote: > On Fri, Nov 2, 2018 at 2:38 PM Richard Earnshaw (lists) > <richard.earns...@arm.com> wrote: >> >> Although there's no fundamental reason why shrink wrapping and >> speculation tracking are incompatible, a phase-ordering requirement (we >> need to do speculation tracking before the final basic block clean-up) >> means that the shrink wrapping pass can undo some of the changes the >> speculation tracking pass makes. The result is that the tracking, while >> still safe is less comprehensive than we really want. >> >> So to keep things simple, and because the tracking code is quite >> expensive anyway, it seems best to just disable that pass when we are >> tracking speculative execution. > > Shouldn't you be able to do this per function at least? >
do what per function? track speculation? R. > Richard. > >> * config/aarch64/aarch64.c (aarch64_override_options): Disable >> shrink-wrapping when -mtrack-speculation. >> >> Committed.
