Re: [PATCH] Fix PR 52203 and 52715

2012-04-13 Thread Alexander Monakov
On Fri, 13 Apr 2012, Andrey Belevantsev wrote: > But of course I wrongly microoptimized the decision of whether an insn is > "empty" as shown in PR 52715, so the right fix is to check the emptiness right > before issuing the insn. Thus, the following patch is really needed (tested > on ia64 and

Re: [PATCH] Fix PR 52203 and 52715

2012-04-13 Thread Andrey Belevantsev
Hello, On 07.03.2012 15:46, Alexander Monakov wrote: On Wed, 7 Mar 2012, Andrey Belevantsev wrote: Hello, This PR is again about insns that are recog'ed as>=0 but do not change the processor state. As explained in http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52203#c8, I've tried experimenti

Re: [PATCH] Fix PR 52203

2012-03-07 Thread Alexander Monakov
On Wed, 7 Mar 2012, Andrey Belevantsev wrote: > Hello, > > This PR is again about insns that are recog'ed as >=0 but do not change the > processor state. As explained in > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52203#c8, I've tried experimenting > with an attribute marking those "empty" i