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7e42b14
2012 May 29
1
[LLVMdev] How to prevent insertion of memcpy()
...> program.
>
I am not sure I understand it.
We can't afford function calls scattered at random places. It will cost 30%
of performance of so.
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2012 May 29
0
[LLVMdev] How to prevent insertion of memcpy()
On Tue, May 29, 2012 at 10:46 AM, Dmitry Vyukov <dvyukov at google.com> wrote:
> On Tue, May 29, 2012 at 9:40 PM, Chandler Carruth <chandlerc at google.com>wrote:
>
>> > How do I disable that feature? I've tried -fno-builtin and/or
>>>>>> -ffreestanding
>>>>>> > with no success.
>>>>>> clang (as well as gcc)
2012 May 29
3
[LLVMdev] How to prevent insertion of memcpy()
On Tue, May 29, 2012 at 9:40 PM, Chandler Carruth <chandlerc at google.com>wrote:
> > How do I disable that feature? I've tried -fno-builtin and/or
>>>>> -ffreestanding
>>>>> > with no success.
>>>>> clang (as well as gcc) requires that freestanding environment provides
>>>>> memcpy, memmove, memset and memcmp.