GCC 3.3.1 -O2 problem with sqrt.c

[Sanjiv Kumar Gupta]

. I don't know whether gcc mail server
> accepts attachments or not,
> 
Oh. It does.

> --- Ian Lance Taylor <ian@airs.com> wrote:
> 
> 
>>Sanjiv Kumar Gupta <skgnu@yahoo.com> writes:
>>
>>
>>>I am using gcc 3.3.1 release as my port, and looks
>>>like I have hit a problem with greg.
>>
>>You neglected to mention what target you are using.
>>
>>
>>>I couldn't understand why the insns 620 and 621
>>
>>are
>>
>>>being generated here as DI moves.
>>
>>I'm not sure specifically why it got a DI move here,
>>but it doesn't
>>look wrong.  It's treating the struct named parts as
>>DImode.
>>
>>
>>>This is creating problem since insn 621 gets
>>
>>splitted
>>
>>>after reload into two SI moves,i.e. @(r21, -8) and
>>>@(r21, -4).
>>>This renders insns 619 as dead and hence insns 618
>>
>>and
>>
>>>insn 429 as dead, which are eliminated by flow2.
>>
>>It does look rather suspicious, but it's hard to
>>know whether it is
>>wrong without seeing the value in r1.
>>
>>Does the behaviour change if you use
>>-fno-strict-aliasing?  (I can't
>>remember what the default was in 3.3.1).
>>
>>Ian
>>
> 
> 
> 
> 		
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