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Re: Scheduler: Save state at the end of a block
- From: Bernd Schmidt <bernds at codesourcery dot com>
- To: Vladimir Makarov <vmakarov at redhat dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Maxim Kuvyrkov <maxim at codesourcery dot com>
- Date: Mon, 8 Oct 2012 13:26:49 +0200
- Subject: Re: Scheduler: Save state at the end of a block
- References: <5028D7D4.3090209@codesourcery.com> <50292052.6070206@redhat.com>
On 08/13/2012 05:42 PM, Vladimir Makarov wrote:
> On 08/13/2012 06:32 AM, Bernd Schmidt wrote:
>> This is a small patch for sched-rgn that attempts to save DFA state at
>> the end of a basic block and re-use it in successor blocks. This was a
>> customer-requested optimization; I've not seen it make much of a
>> difference in any macro benchmarks.
>> Bootstrapped and tested on x86_64-linux and also tested on c6x-elf. OK?
>>
>>
>>
> Yes. Thanks for the patch, Bernd.
It's been a while, so I thought I'd better mention I've checked this in
now after retesting.
Bernd