https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69454
--- Comment #33 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Ilya Enkovich from comment #32) > (In reply to Uroš Bizjak from comment #31) > > Maybe we can use HJ's patch from Comment #27 and communicate converted_insns > > flag from convert_scalars_to_vector to ix86_finalize_stack_realign_flags? > > The i_f_s_r function is able to cancel the realignment just before prologue > > generation, when realignment is not needed. > > I don't see how it resolves DRAP register problem. Patch will indicate we > need to realign but won't provide a DRAP for it. And as I mentioned before > it might be unsafe to allocate DRAP after STV due to tail calls. Please try my patch in comment 30.
