[LLVMdev] clan -x assembler fails on vcvttsd2siq instruction

[Duncan Sands]

Hi Nobu,

> Thanks for response. Will this be fixed sometime soon?

did you open a bug report?

> Is there anything I can do to make it work in my copy of the latest llvm source?

Are you sure that

  vcvttsd2siq     %xmm0, %rax

is correct and this isn't a gcc bug?

Ciao, Duncan.

> 
> Best,
> Nobu
> 
> 2012/7/17 jj <h59213 at rtrtr.com>:
>> 片山 伸彦 <nobu.katayama <at> ipmu.jp> writes:
>>
>>>
>>> Dear llvm developers,
>>>
>>> I am trying to run clang assembler to use avx instructions on Mac.
>>>
>>> I use gcc 4.7.1 to generate  .s files from .c files. I can assemble foo.s by
>>>
>>> clang -c -x assembler foo.s
>>>
>>> to get foo.o but
>>>
>>> clang -c -x assembler foo_long.s
>>>
>>> fails with
>>>
>>> $clang -x assembler foo_long.s
>>> foo_long.s:27:2: error: invalid instruction mnemonic 'vcvttsd2siq'
>>>          vcvttsd2siq     %xmm0, %rax
>>>          ^~~~~~~~~~~
>>>
>>> clang can assemble many other .s files with avx instructions.  I tried the
>> default clang, clang+llvm 3.1
>>> binary and svn checked out llvm/clang. All same.
>>>
>>> Have you any idea?
>>>
>>> Thank you so much!
>>>
>>> Nobu
>>>
>>> Nobu Katayama
>>> nobu.katayama <at> ipmu.jp
>>
>>
>> Same problem here. I have used clang (both OS X 10.6.8 native clang-2.9 and
>> Macports clang-3.1) in a wrapper script along with GCC 4.7.1 to build ATLAS
>> (tuned BLAS and LAPACK libraries). I ran into this error as well.
>>
>> error: invalid instruction mnemonic 'vcvttsd2siq'
>>          vcvttsd2siq     %xmm0, %rax
>>
>> The wrapper script is described here:
>> http://old.nabble.com/Re%3a-gcc,-as,-AVX,-binutils-and-MacOS-X-10.7-p32584737.html
>>
>> JJ
>>
>>
>>
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