Displaying 3 results from an estimated 3 matches for "mcpyinst".
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memcpyinst
2018 Jan 31
4
llvm.memcpy for struct copy
Hi Ma,
how can I transform the llvm.memcpy into data move loop IR and eliminate
> the bitcast instruction ?
>
I'm not sure why you are concerned about memcpy and bitcasts, but if you
call MCpyInst->getSource() and MCpyInst->getDest() it will look through
casts and give you the 'true' source/destination.
If you want to get rid of memcpy altogether, you can take a look at this
pass:
https://github.com/seahorn/seahorn/blob/master/lib/Transforms/Scalar/PromoteMemcpy.cc
.
Best,
K...
2018 Jan 30
0
llvm.memcpy for struct copy
Hi Craig
Thank you very much ！
2018-01-30 16:11 GMT+08:00 Craig Topper <craig.topper at gmail.com>:
> The pointers must always be i8* the alignment is independent and is
> controlled by the attributes on the arguments in the call to memcpy.
>
> ~Craig
>
> On Mon, Jan 29, 2018 at 11:45 PM, ma jun <jun.parser at gmail.com> wrote:
>
>> Hi
>>
>>
2018 Jan 30
2
llvm.memcpy for struct copy
The pointers must always be i8* the alignment is independent and is
controlled by the attributes on the arguments in the call to memcpy.
~Craig
On Mon, Jan 29, 2018 at 11:45 PM, ma jun <jun.parser at gmail.com> wrote:
> Hi
>
>
> 2018-01-30 15:36 GMT+08:00 ma jun <jun.parser at gmail.com>:
>
>> Hi
>> Thanks !
>> so for this example
>>