On Fri, Dec 9, 2011 at 1:24 AM, Richard Henderson <r...@redhat.com> wrote: > On 12/08/2011 04:00 PM, Jakub Jelinek wrote: >> On Thu, Dec 08, 2011 at 03:53:40PM -0800, Richard Henderson wrote: >>> On 12/08/2011 11:57 AM, Jakub Jelinek wrote: >>>> + else if (gimple_code (last) == GIMPLE_RETURN >>>> + || (gimple_code (last) == GIMPLE_RESX >>>> + && stmt_can_throw_external (last))) >>>> + optimize_clobbers (bb); >>> >>> If you need to do this for returns as well as resx, then >>> this is the wrong place, since we'll only get here if there >>> are exception regions in the current function. >> >> I don't need to do it for returns, on the other side those clobbers >> before return are useless and removing them perhaps might decrease >> memory consumptions (after collect). >> >> But if you prefer to keep it just for GIMPLE_RESX, fine with me. >> >> It can be done anywhere else after inlining and before ehcleanup2 >> too if you have suggestions where to do it instead. > > *shrug* Maybe just a new pass immediately before ehcleanup2? > It's just a quick pass over the basic blocks...
I'd just not care for the ones preceeding a return. Not at this point at least. Richard. > > r~
