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Re: Scheduler:LLVM vs gcc, which is better
- From: Chandler Carruth <chandlerc at gmail dot com>
- To: lin zuojian <manjian2006 at gmail dot com>
- Cc: GCC Mailing List <gcc at gcc dot gnu dot org>
- Date: Mon, 10 Mar 2014 19:11:43 -0700
- Subject: Re: Scheduler:LLVM vs gcc, which is better
- Authentication-results: sourceware.org; auth=none
- References: <20140311015901 dot GA23856 at ubuntu>
On Mon, Mar 10, 2014 at 6:59 PM, lin zuojian <manjian2006@gmail.com> wrote:
>
> Hi,
> I read LLVM code for a while,and a question raise:Whose scheduler is
> better?
> LLVM brings in the DAG,and make it look important just like IR or
> MachineInst.But is that necessary?I don't see what kind of problem
> it tries to solve.
> From the pipeline of the compiler, LLVM can not do sched2.Is that
> suck?
I clearly can't speak for GCC developers, but as an LLVM developer I
have to say, this seems like a (somewhat rudely phrased) question for
the LLVM mailing lists where there are people more familiar with the
LLVM internals. Happy to reply in more depth there (or here if folks
are actually interested).