[LLVMdev] clan -x assembler fails on vcvttsd2siq instruction (original) (raw)

jj h59213 at rtrtr.com
Mon Jul 16 12:49:28 PDT 2012

片山 伸彦 <nobu.katayama 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 foolong.s fails with $clang -x assembler foolong.s foolong.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 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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