llvm dev - Feb 2010 - [LLVMdev] adding switches to llvm-ld to disable certain optimizations.

Hi,
I need to add switches like -disable-mem2reg, disable-gvn to llvm-ld. 
Currently CreateStandardLTOPasses takes in only DisableInternalize and 
DisableInliner switches.

Is modifying this API okay for these new switches, or is it doable in 
some other ways ?

- Sanjiv

On Feb 9, 2010, at 7:39 PM, Sanjiv Gupta wrote:
> Hi,
> I need to add switches like -disable-mem2reg, disable-gvn to llvm-ld. 
> Currently CreateStandardLTOPasses takes in only DisableInternalize and 
> DisableInliner switches.
> 
> Is modifying this API okay for these new switches, or is it doable in 
> some other ways ?
Why do you want this?

-Chris

On Tue, Feb 9, 2010 at 7:39 PM, Sanjiv Gupta <sanjiv.gupta at
microchip.com> wrote:
> Hi,
> I need to add switches like -disable-mem2reg, disable-gvn to llvm-ld.
> Currently CreateStandardLTOPasses takes in only DisableInternalize and
> DisableInliner switches.
>
> Is modifying this API okay for these new switches, or is it doable in
> some other ways ?
I don't think this is appropriate for the standard passes API. If you
really care about tweaking the pass list, you should be making your
own (based on the standard pass list perhaps).

 - Daniel
> - Sanjiv
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>

Chris Lattner wrote:
> On Feb 9, 2010, at 7:39 PM, Sanjiv Gupta wrote:
>
>   
>> Hi,
>> I need to add switches like -disable-mem2reg, disable-gvn to llvm-ld. 
>> Currently CreateStandardLTOPasses takes in only DisableInternalize and 
>> DisableInliner switches.
>>
>> Is modifying this API okay for these new switches, or is it doable in 
>> some other ways ?
>>     
>
> Why do you want this?
>
> -Chris
>   
Mem2Reg isn't really useful for a single register machine as ours. More 
often than not, it causes extra spilling.

- Sanjiv