[LLVMdev] DataStructure Analysis ds-aa can not stop when passing mysqld

[hc2428 at columbia.edu]

Quoting hc2428 at columbia.edu:

Dear staff,
     Here is the bc file.

Heming

> Quoting Chris Lattner <clattner at apple.com>:
>
> Dear staff,
>      I am using the ds-aa to pass mysqld. I compile mysqld 4.0.12
> statically (compile all libraries statically to the executable) and
> got the bc file, named it as mysqld.bc3.
>      I use the command to pass:
>
> opt -load <poolalloc install dir>/lib/libLLVMDataStructure.so -ds-aa
> mysqld.bc3 -print-alias-sets -disable-output
>
>      However, I got a lot of "cast in ... " on output screen like this:
>
> cast in strxnmov
>          %13 = inttoptr i32 %10 to i8*           ; <i8*> [#uses=1]
>
>      In addition, and pass can not stop for a long time, and the last
> output is the "cast in ... " as above.
>
> Thanks,
> Heming
>
>
>>
>> On May 13, 2009, at 7:22 AM, Stripf, Timo wrote:
>>
>>> Hi all,
>>>
>>> i?m working atm on a backend for a processor architecture that is
>>> capable of storing the carry flag of ADDC in an 1-bit register
>>> class. So I tried to lower the ADDC instruction to generate two
>>> register values as result. On the tablegen description of the
>>> instruction i came across the tablegen restriction that only one
>>> output result of one instruction is possible:
>>>
>>>  assert(NumResults <= 1 &&
>>>         "We only work with nodes with zero or one result so far!");
>>>
>>> So my question is now how much work it would be to remove this
>>> restriction in tablegen. What do I have to take into consideration?
>>>
>>
>> I don't know offhand, but this would be a very welcome improvement!
>>
>> -Chris
>
>
>
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