5.13

    A.

    1.  +----+----+----+----+-----+-----+
    2.  |%rbp|%rcx|%rax|%rbx|%xmm1|%xmm0|
    3.  +----+----+----+----+-----+-----++----+
    4.    +----|----|----|----------|--->|    |
    5.    |    +----|----|----------|--->|load|      vmovad 0(%rbp,%rcx,8),%xmm1
    6.    |    |    |    |    +-----|----|    |
    7.    |    |    |    |    |     |    +----+
    8.    |    +----|----|----------|--->|    |
    9.    |    |    |    |    |     |    |load|---+
    10.    |    |    +----|----------|--->|    |   |
    11.    |    |    |    |    |     |    +----+   |  vmulsd (%rax,%rcx,8),%xmm1,%xmm0
    12.    |    |    |    |    |     |    |    |<--+
    13.    |    |    |    |    +-----|--->|mul |
    14.    |    |    |    |    +-----|----|    |
    15.    |    |    |    |    |     |    +----+
    16.    |    |    |    |    +-----|--->|    |
    17.    |    |    |    |    |     +--->|add |      vaddsd %xmm1,%xmm0,%xmm0
    18.    |    |    |    |    |     +----|    |
    19.    |    |    |    |    |     |    +----+
    20.    |    +----|----|----------|--->|    |
    21.    |         |    |    |     |    |add |      addq $1, %rcx
    22.    |    +----|----|----------|----|    |
    23.    |    |    |    |    |     |    +----+
    24.    |    +----|----|----------|--->|    |
    25.    |    |    |    |    |     |    |cmp |---+  cmpq %rbx, %rcx
    26.    |    |    |    +----|-----|--->|    |   |
    27.    |    |    |    |    |     |    +----+   |
    28.    |    |    |    |    |     |    |    |   |
    29.    |    |    |    |    |     |    |jne |<--+  jne .L15
    30.    |    |    |    |    |     |    |    |
    31.    |    |    |    |    |     |    +----+
    32.    v    v    v    v    v     v
    33.  +----+----+----+----+-----+-----+
    34.  |%rbp|%rcx|%rax|%rbx|%xmm1|%xmm0|
    35.  +----+----+----+----+-----+-----+
    39.       +----+                      +-----+
    40.       |%rcx|                      |%xmm0|
    41.       +----+                      +-----+
    42.         |                           |
    43.         |     +----+                |  <--------- key path
    44.         +---->|load|------+         |
    45.         |     +----+      |         |
    46.         |                 v         v
    47.         |     +----+    +-+--+    +-+--+
    48.         +---->|load|--->|mul |--->|add |
    49.         |     +----+    +----+    +----+
    50.         |                           |
    51.         |                           |
    52.         v                           |
    53.       +----+                        |
    54.       |add |                        |
    55.       +----+                        |
    56.         |                           |
    57.         v                           v
    58.       +-+--+                      +-----+
    59.       |%rcx|                      |%xmm0|
    60.       +----+                      +-----+

    B.

    5-12

    float add cell, CPE is 3.0

    C.

    5-12

    long add cell, 1.0

    D.

    only float add on key path

    1. !INCLUDE "./code/5.13.c"