On Sat, Jul 24, 2021 at 12:30 AM Jeff Law via Gcc-patches <gcc-patches@gcc.gnu.org> wrote: > > > > On 7/14/2021 3:14 AM, bin.cheng via Gcc-patches wrote: > > Hi, > > I ran into a wrong code bug in code with deep template instantiation when > > working on sdx::simd. > > The root cause as described in commit summary is we skip prologue insns in > > init_alias_analysis. > > This simple patch fixes the issue, however, it's hard to reduce a case > > because of heavy use of > > templates. > > Bootstrap and test on x86_64, is it OK? > It's a clear correctness improvement, but what's unclear to me is why > we'd want to skip them in the epilogue either. I can only guess, there is nothing to initialize epilogue for because no code follows.
Thanks, bin > > Jeff
