Displaying 2 results from an estimated 2 matches for "tp29932485p29951053".
2010 Oct 13
2
[LLVMdev] DCE and external function
Hi,
On Mon, Oct 11, 2010 at 3:46 PM, Duncan Sands <baldrick at free.fr> wrote:
> Hi leledumbo,
>
>> If I have:
>>
>> %x = call @externalFunc
>> ... ; other codes where %x is not used
>> ret ; assume void function
>>
>> and use dce optimization, will the call gets eliminated?
>
> only if the compiler can prove that the called function has
2010 Oct 13
0
[LLVMdev] DCE and external function
>>> If I have:
>>>
>>> %x = call @externalFunc
>>> ... ; other codes where %x is not used
>>> ret ; assume void function
>>>
>>> and use dce optimization, will the call gets eliminated?
>>
>> only if the compiler can prove that the called function has
>> no side effects (such as modifying some global variables or