digitalmars.D.learn - How can I use AVX instructions in D inline asm?
- John (33/33) Sep 11 2014 Hi.
Hi. Now I try to use SSE/AVX instructions in D inline asm. I have a trouble about this. In http://dlang.org/iasm.html , AVX seems to be supported according to SIMD section in the paeg. But there is no AVX opcodes, like vaddps, in Opcodes section in the page. So I have assumed addps can be used as vaddps with AVX registers, and I compile the following three code. //1 asm { addps XMM0, XMM1; } //2 asm { addps YMM0, YMM1; } //3 asm { vaddps YMM0, YMM1; } 1 - OK 2 - undefined identifier YMMx (??? I expect OK or invalid operands.) 3 - unkown opcode 'vaddps'(reasonable) I have used ldc2 with llvm 3.5 and the compile following command. ldc2 test.d -m64 -mcpu=core-avx2 My CPU supports AVX too. Please point out what's wrong. Thank you.
Sep 11 2014