Fwd: Help to understand instructions

[Sergey Ivanov]

Have compiled program with -g O3 together.
Now learn it output via objdump (with code mixed format) and see
(sorry for rather long one, just environment for question):


..........
inline void Box::MinCoordDistance(double &r, const int i) const
{
  if (r >= halfL[i])
  41f06d:    f2 0f 10 48 38           movsd  xmm1,QWORD PTR [rax+0x38]
*/
inline double Box::distanceSq(const Vec r1, const Vec r2, Vec dr) const
{
  for (int i = 0; i < 3; i++)
  {
    dr[i] = r1[i] - r2[i];
  41f072:    f2 41 0f 5c 40 10        subsd  xmm0,QWORD PTR [r8+0x10]
  return distanceSq(r1, r2, dr);

}

inline void Box::MinCoordDistance(double &r, const int i) const
{
  if (r >= halfL[i])
  41f078:    66 0f 2e c1              ucomisd xmm0,xmm1
*/
inline double Box::distanceSq(const Vec r1, const Vec r2, Vec dr) const
{
  for (int i = 0; i < 3; i++)
  {
    dr[i] = r1[i] - r2[i];
  41f07c:    f2 0f 11 44 24 18        movsd  QWORD PTR [rsp+0x18],xmm0
  return distanceSq(r1, r2, dr);

}

inline void Box::MinCoordDistance(double &r, const int i) const
{
  if (r >= halfL[i])
  41f082:    0f 83 50 01 00 00        jae    41f1d8
<CbDoubleBridgeBase<EnsembleNVT,
Homopolymer>::scanBridgingForwardOne(int)+0x258>

    r -= L[i];
  else if (r < -halfL[i])
  41f088:    f2 0f 10 15 90 55 02     movsd  xmm2,QWORD PTR
[rip+0x25590]        # 444620 <typeinfo name for
SpeciesDependedMove<GeneralPolymerChain>+0x80> <<<<<<<<<<<<<<<question
is here
  41f08f:    00
  41f090:    66 0f 57 ca              xorpd  xmm1,xmm2
  41f094:    66 0f 2e c8              ucomisd xmm1,xmm0
  41f098:    76 0b                    jbe    41f0a5
<CbDoubleBridgeBase<EnsembleNVT,
Homopolymer>::scanBridgingForwardOne(int)+0x125>
    r += L[i];
  41f09a:    f2 0f 58 40 20           addsd  xmm0,QWORD PTR [rax+0x20]
  41f09f:    f2 0f 11 44 24 18        movsd  QWORD PTR [rsp+0x18],xmm0
*/
inline double Box::distanceSq(const Vec r1, const Vec r2, Vec dr) const
{
  for (int i = 0; i < 3; i++)
  {
    dr[i] = r1[i] - r2[i];
  41f0a5:    f2 0f 10 47 18           movsd  xmm0,QWORD PTR [rdi+0x18]
  return distanceSq(r1, r2, dr);

}

inline void Box::MinCoordDistance(double &r, const int i) const
{
  if (r >= halfL[i])
  41f0aa:    f2 0f 10 48 40           movsd  xmm1,QWORD PTR [rax+0x40]
*/
inline double Box::distanceSq(const Vec r1, const Vec r2, Vec dr) const
{
  for (int i = 0; i < 3; i++)
  {
    dr[i] = r1[i] - r2[i];
  41f0af:    f2 41 0f 5c 40 18        subsd  xmm0,QWORD PTR [r8+0x18]
  return distanceSq(r1, r2, dr);
}
.................

What implicit addressation via rip means? Is it kind of protection or
is it bug of objdump?


--
Kind regards,
Sergey Ivanov