Python正则表达式来捕获短语

我想找出一个正则表达式模式，它能够捕获给定汇编代码片段的操作和它所作用的两个寄存器或地址.这就是我到目前为止所拥有的:

import re

assembly_code = """
    lea    r8, [rcx + 8*rax]
    movsd  xmm0, qword ptr [rcx + 8*rax]   ## xmm0 = mem[0],zero
    mov    rcx, r9
    xor    edi, edi
    .p2align    4, 0x90
LBB0_12:                                ##   Parent Loop BB0_2 Depth=1
                                        ##     Parent Loop BB0_3 Depth=2
                                        ##       Parent Loop BB0_4 Depth=3
                                        ##         Parent Loop BB0_10 Depth=4
                                        ##           Parent Loop BB0_11 Depth=5
                                        ## =>          This Inner Loop Header: Depth=6
    movsd  xmm1, qword ptr [r13 + 8*rdi]   ## xmm1 = mem[0],zero
    mulsd  xmm1, qword ptr [rcx]
    addsd  xmm0, xmm1
    movsd  qword ptr [r8], xmm0
    add    rcx, 2048
    lea    r12, [rsi + rdi]
    add    r12, 1
    add    rdi, 1
    cmp    r12, r14
    jl     LBB0_12
## %bb.13:                              ##   in Loop: Header=BB0_11 Depth=5
    add    rax, 1
    add    r9, 8
    cmp    rax, rbx
    jl     LBB0_11
"""

pattern = r"\b(mov|movaps|movups|movaps|movss|movsd|movlps|movhps|movlpd|movhpd|movd|movq)\b\s+(\S+)\s*,\s*(\S+(\s*\[.*?\])?)"

matches = re.findall(pattern, assembly_code)
for match in matches:
    print("Instruction: ", match[0])
    print("Operand 1: ", match[1])
    print("Operand 2: ", match[2])
    print("---")

但输出如下所示:

Instruction:  movsd
Operand 1:  xmm0
Operand 2:  qword
---
Instruction:  mov
Operand 1:  rcx
Operand 2:  r9
---
Instruction:  movsd
Operand 1:  xmm1
Operand 2:  qword
---

我的目标是像qword ptr [r13 + 8*rdi]个模式在其完整的形式.如何修改模式以使其正确捕获完整的字符串？