[LLVMdev] clan -x assembler fails on vcvttsd2siq instruction

[jj]

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