From: Srinivasa T N <seenutn@linux.vnet.ibm.com>
To: Krzysztof <kj@limes.com.pl>
Cc: linux-c-programming@vger.kernel.org
Subject: Re: Is it helpful for a compiler to optimize?
Date: Mon, 04 Jun 2012 19:39:07 +0530 [thread overview]
Message-ID: <4FCCC183.1030005@linux.vnet.ibm.com> (raw)
In-Reply-To: <jqf201$j23$1@dough.gmane.org>
Why don't you generate the assembly code for both the versions with -s
and -O<lvl>?
Regards,
Seenu.
On 06/03/2012 12:29 PM, Krzysztof wrote:
> On 06/03/2012 08:38 AM, Krzysztof wrote:
>>
>> void afun(struct st *stp)
>> {
>> int liv=stp->iv++;
>>
>> printf("%d\n",liv);
>> }
>>
> Should be: int liv=++stp->iv; of course for equivalence.
>
next prev parent reply other threads:[~2012-06-04 14:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-03 6:38 Is it helpful for a compiler to optimize? Krzysztof
2012-06-03 6:59 ` Krzysztof
2012-06-04 14:09 ` Srinivasa T N [this message]
2012-06-03 8:03 ` Jesse Ruffin
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