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December 10, 2021 07:16
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StackOverflow question 70272651 String constructor patched
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| 0x00007f6b88eb5fea: cmp $0x8,%rcx | |
| ╭ 0x00007f6b88eb5fee: jg 0x00007f6b88eb6000 | |
| │ 0x00007f6b88eb5ff0: dec %rcx | |
| │╭ 0x00007f6b88eb5ff3: js 0x00007f6b88eb6044 | |
| ││↗ 0x00007f6b88eb5ff5: mov %rax,(%rdi,%rcx,8) | |
| │││ 0x00007f6b88eb5ff9: dec %rcx | |
| ││╰ 0x00007f6b88eb5ffc: jge 0x00007f6b88eb5ff5 | |
| ││ ╭ 0x00007f6b88eb5ffe: jmp 0x00007f6b88eb6044 | |
| ↘│ │ 0x00007f6b88eb6000: vpxor %ymm0,%ymm0,%ymm0 | |
| │ │╭ 0x00007f6b88eb6004: jmp 0x00007f6b88eb6016 | |
| 0.24% │ ││↗ 0x00007f6b88eb6009: vmovdqu %ymm0,(%rdi) | |
| 0.05% │ │││ 0x00007f6b88eb600d: vmovdqu %ymm0,0x20(%rdi) | |
| │ │││ 0x00007f6b88eb6012: add $0x40,%rdi | |
| 0.26% │ │↘│ 0x00007f6b88eb6016: sub $0x8,%rcx | |
| │ │ ╰ 0x00007f6b88eb601a: jge 0x00007f6b88eb6009 | |
| 0.26% │ │ 0x00007f6b88eb601c: add $0x4,%rcx | |
| │ │ ╭ 0x00007f6b88eb6020: jl 0x00007f6b88eb602e | |
| │ │ │ 0x00007f6b88eb6022: vmovdqu %ymm0,(%rdi) | |
| │ │ │ 0x00007f6b88eb6026: add $0x20,%rdi | |
| │ │ │ 0x00007f6b88eb602a: sub $0x4,%rcx | |
| 0.01% │ │ ↘ 0x00007f6b88eb602e: add $0x4,%rcx | |
| │ │ ╭ 0x00007f6b88eb6032: jle 0x00007f6b88eb6044 | |
| │ │ │ 0x00007f6b88eb6034: dec %rcx | |
| │ │ │↗ 0x00007f6b88eb6037: vmovq %xmm0,(%rdi) | |
| 0.19% │ │ ││ 0x00007f6b88eb603b: add $0x8,%rdi | |
| │ │ ││ 0x00007f6b88eb603f: dec %rcx | |
| │ │ │╰ 0x00007f6b88eb6042: jge 0x00007f6b88eb6037 ;*invokestatic inflate {reexecute=0 rethrow=0 return_oop=0} | |
| │ │ │ ; - java.lang.String::<init>@276 (line 570) | |
| ↘ ↘ ↘ 0x00007f6b88eb6044: xor %ebx,%ebx | |
| 0x00007f6b88eb6046: movabs $0x7f6b7ff27000,%rcx | |
| 0.22% ╭ 0x00007f6b88eb6050: jmp 0x00007f6b88eb6064 | |
| 0.26% │↗ 0x00007f6b88eb6052: mov %dil,0x10(%r8,%rsi,1) ;*putfield value {reexecute=0 rethrow=0 return_oop=0} | |
| ││ ; - java.lang.String::<init>@74 (line 529) | |
| 0.79% ││ 0x00007f6b88eb6057: mov 0x340(%r15),%r10 ; ImmutableOopMap {r8=Oop r14=Oop [24]=Oop } | |
| ││ ;*goto {reexecute=1 rethrow=0 return_oop=0} | |
| ││ ; - (reexecute) java.lang.String::<init>@141 (line 542) | |
| 1.14% ││ 0x00007f6b88eb605e: test %eax,(%r10) ;*goto {reexecute=0 rethrow=0 return_oop=0} | |
| ││ ; - java.lang.String::<init>@141 (line 542) | |
| ││ ; {poll} | |
| 17.28% ││ 0x00007f6b88eb6061: mov %edx,%r10d ;*iload_2 {reexecute=0 rethrow=0 return_oop=0} | |
| ││ ; - java.lang.String::<init>@107 (line 537) | |
| 0.11% ↘│ 0x00007f6b88eb6064: test %r10d,%r10d | |
| │ 0x00007f6b88eb6067: jl 0x00007f6b88eb669c ;*iflt {reexecute=0 rethrow=0 return_oop=0} | |
| │ ; - java.lang.String::<init>@108 (line 537) | |
| 0.39% │ 0x00007f6b88eb606d: cmp %r13d,%r10d | |
| │ 0x00007f6b88eb6070: jge 0x00007f6b88eb66d0 ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0} | |
| │ ; - java.lang.String::<init>@114 (line 537) | |
| 0.66% │ 0x00007f6b88eb6076: mov %ebx,%r9d | |
| 13.70% │ 0x00007f6b88eb6079: cmp 0x8(%rsp),%r10d | |
| 0.01% │ 0x00007f6b88eb607e: jae 0x00007f6b88eb6671 | |
| 0.14% │ 0x00007f6b88eb6084: movsbl 0x10(%r14,%r10,1),%edi ;*baload {reexecute=0 rethrow=0 return_oop=0} | |
| │ ; - java.lang.String::<init>@119 (line 538) | |
| 0.37% │ 0x00007f6b88eb608a: mov %r9d,%ebx | |
| 0.99% │ 0x00007f6b88eb608d: inc %ebx ;*iinc {reexecute=0 rethrow=0 return_oop=0} | |
| │ ; - java.lang.String::<init>@131 (line 540) | |
| 12.88% │ 0x00007f6b88eb608f: movslq %r9d,%rsi ;*bastore {reexecute=0 rethrow=0 return_oop=0} | |
| │ ; - java.lang.String::<init>@196 (line 548) | |
| 0.17% │ 0x00007f6b88eb6092: mov %r10d,%edx | |
| 0.39% │ 0x00007f6b88eb6095: inc %edx ;*iinc {reexecute=0 rethrow=0 return_oop=0} | |
| │ ; - java.lang.String::<init>@138 (line 541) | |
| 0.96% │ 0x00007f6b88eb6097: test %edi,%edi | |
| 0.02% │ 0x00007f6b88eb6099: jl 0x00007f6b88eb60dc ;*iflt {reexecute=0 rethrow=0 return_oop=0} | |
| │ ; - java.lang.String::<init>@124 (line 539) | |
| 12.42% │ 0x00007f6b88eb609b: cmp %r11d,%r9d | |
| ╰ 0x00007f6b88eb609e: jb 0x00007f6b88eb6052 | |
| 0x00007f6b88eb60a0: mov $0xffffffe4,%esi | |
| 0x00007f6b88eb60a5: mov %r14,%rbp | |
| 0x00007f6b88eb60a8: mov %r10d,(%rsp) | |
| 0x00007f6b88eb60ac: mov %ebx,0x4(%rsp) | |
| 0x00007f6b88eb60b0: mov %r9d,0x8(%rsp) | |
| 0x00007f6b88eb60b5: mov %edi,0xc(%rsp) | |
| 0x00007f6b88eb60b9: mov 0x18(%rsp),%r10 | |
| 0x00007f6b88eb60be: mov %r10,0x10(%rsp) |
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