* __mips16_xxx and .globl
@ 2013-08-31 6:29 Reed Kotler
2013-08-31 13:34 ` Reed Kotler
0 siblings, 1 reply; 2+ messages in thread
From: Reed Kotler @ 2013-08-31 6:29 UTC (permalink / raw)
To: GCC Mailing List; +Cc: Richard Sandiford
I have implemented this gcc mips16 floating point scheme in llvm/clang
and ran into one interesting issue.
In gcc mips16, for all the hard float routines, i.e. __mips16_xxx, gcc
emits a .globl for them.
It does not do this for other routines like strcmp for example or puts.
If don't remit the .globl's for these in -fPIC mode, then when I run
this one heavy math use program, it runs really slow because it seems
to be constantly in the loader doing something.
If I edit the .s file and add the .globl's then it runs at normal speed.
Does anyone know what the issue would be here?
Without the .globl, the type is UNDEFINED and with the .globl the type
of OBJECT for these __mips16_xxx routines.
Reed
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: __mips16_xxx and .globl
2013-08-31 6:29 __mips16_xxx and .globl Reed Kotler
@ 2013-08-31 13:34 ` Reed Kotler
0 siblings, 0 replies; 2+ messages in thread
From: Reed Kotler @ 2013-08-31 13:34 UTC (permalink / raw)
Cc: GCC Mailing List, Richard Sandiford
I forgot to mention that this only happens with I"m linking as C++
On 08/29/2013 02:07 PM, Reed Kotler wrote:
> I have implemented this gcc mips16 floating point scheme in llvm/clang
> and ran into one interesting issue.
>
> In gcc mips16, for all the hard float routines, i.e. __mips16_xxx, gcc
> emits a .globl for them.
>
> It does not do this for other routines like strcmp for example or puts.
>
> If don't remit the .globl's for these in -fPIC mode, then when I run
> this one heavy math use program, it runs really slow because it seems
> to be constantly in the loader doing something.
>
> If I edit the .s file and add the .globl's then it runs at normal speed.
>
> Does anyone know what the issue would be here?
>
> Without the .globl, the type is UNDEFINED and with the .globl the type
> of OBJECT for these __mips16_xxx routines.
>
> Reed
>
>
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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