问asm中的未知寄存器名称'q0‘

EN

Unknown register name 'q0' in asm

static void neon_asm_mat4_vec4_mul(const float* __restrict m, const int* __restrict v, int* __restrict output)
      {
        asm volatile
        (
         // Store m & v - avoiding q4-q7 which need to be preserved - q0 = result
         "vldmia %1, { q8-q11 } \n\t"   // q8-q11 = m
         "vldmia %2, { q1 }     \n\t"   // q1     = v

         // Convert v to floats
         "vcvt.f32.s32 q1, q1 \n\t"

         // result = first column of A x V.x
         "vmul.f32 q0, q8, d2[0] \n\t"

         // result += second column of A x V.y
         "vmla.f32 q0, q9, d2[1] \n\t"

         // result += third column of A x V.z
         "vmla.f32 q0, q10, d3[0] \n\t"

         // result += last column of A x V.w
         "vmla.f32 q0, q11, d3[1] \n\t"

         // convert to integer
         "vcvt.s32.f32 q0, q0 \n\t"

         // output = result registers
         "vstmia %0, { q0 }  \n\t"

         : // no output
         : "r" (output), "r" (m), "r" (v)      // input - note *value* of pointer doesn't change
         : "memory", "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11" //clobber
         );
      }