Здравствуйте, vdimas, Вы писали:

V>Здравствуйте, Sinclair, Вы писали:

V>Вариант на FindChildV, который немного подшаманил.

Тоже не лучше — много вызовов в this[int]:

BranchNode`2[[BranchNode`2[[LeafNode`1[[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]].get_Item(Int32)
    L0000: push rdi
    L0001: push rsi
    L0002: sub rsp, 0x78
    L0006: vzeroupper
    L0009: vmovaps [rsp+0x60], xmm6
    L000f: vmovaps [rsp+0x50], xmm7
    L0015: xor eax, eax
    L0017: mov [rsp+0x28], rax
    L001c: vxorps xmm4, xmm4, xmm4
    L0020: vmovdqa [rsp+0x30], xmm4
    L0026: vmovdqa [rsp+0x40], xmm4
    L002c: mov rsi, rcx
    L002f: mov [rsp+0x38], edx
    L0033: vmovd xmm0, [rsp+0x38]
    L0039: vpbroadcastd ymm6, xmm0
    L003e: xor edi, edi
    L0040: lea rdx, [rsp+0x28]
    L0045: mov rcx, rsi
    L0048: vextractf128 xmm7, ymm6, 1
    L004e: call BranchNode`2[[BranchNode`2[[LeafNode`1[[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]].get_VectorIndices()
    L0053: xor r8d, r8d
    L0056: cmp dword ptr [rsp+0x30], 0
    L005b: vinsertf128 ymm6, ymm6, xmm7, 1
    L0061: jle short L00a4
    L0063: mov r9, [rsp+0x28]
    L0068: movsxd rcx, r8d
    L006b: shl rcx, 5
    L006f: vmovupd ymm0, [r9+rcx]
    L0075: vpcmpgtd ymm0, ymm0, ymm6
    L0079: vmovmskps r9d, ymm0
    L007d: or r9d, 0xffffff00
    L0084: tzcnt r9d, r9d
    L0089: lea eax, [rdi+r9]
    L008d: cmp eax, [rsi]
    L008f: jge short L00be
    L0091: cmp r9d, 8
    L0095: jl short L00d8
    L0097: add edi, 8
    L009a: inc r8d
    L009d: cmp r8d, [rsp+0x30]
    L00a2: jl short L0063
    L00a4: mov r8d, [rsi]
    L00a7: dec r8d
    L00aa: lea r9, [rsp+0x38]
    L00af: lea rcx, [rsp+0x40]
    L00b4: mov rdx, rsi
    L00b7: call BranchNode`2[[BranchNode`2[[LeafNode`1[[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]].<FindChildV>g__Return|14_0(BranchNode`2<BranchNode`2<LeafNode`1<Int32>,Int32>,Int32> ByRef, Int32, <>c__DisplayClass14_0<BranchNode`2<LeafNode`1<Int32>,Int32>,Int32> ByRef)
    L00bc: jmp short L00ed
    L00be: mov r8d, [rsi]
    L00c1: dec r8d
    L00c4: lea r9, [rsp+0x38]
    L00c9: lea rcx, [rsp+0x40]
    L00ce: mov rdx, rsi
    L00d1: call BranchNode`2[[BranchNode`2[[LeafNode`1[[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]].<FindChildV>g__Return|14_0(BranchNode`2<BranchNode`2<LeafNode`1<Int32>,Int32>,Int32> ByRef, Int32, <>c__DisplayClass14_0<BranchNode`2<LeafNode`1<Int32>,Int32>,Int32> ByRef)
    L00d6: jmp short L00ed
    L00d8: lea rcx, [rsp+0x40]
    L00dd: lea r9, [rsp+0x38]
    L00e2: mov rdx, rsi
    L00e5: mov r8d, eax
    L00e8: call BranchNode`2[[BranchNode`2[[LeafNode`1[[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]].<FindChildV>g__Return|14_0(BranchNode`2<BranchNode`2<LeafNode`1<Int32>,Int32>,Int32> ByRef, Int32, <>c__DisplayClass14_0<BranchNode`2<LeafNode`1<Int32>,Int32>,Int32> ByRef)
    L00ed: mov rcx, [rsp+0x40]
    L00f2: mov edx, [rsp+0x48]
    L00f6: cmp [rcx], ecx
    L00f8: add rcx, 8
    L00fc: call BranchNode`2[[LeafNode`1[[System.Int32, System.Private.CoreLib]], _],[System.Int32, System.Private.CoreLib]].get_Item(Int32)
    L0101: nop
    L0102: vmovaps xmm6, [rsp+0x60]
    L0108: vmovaps xmm7, [rsp+0x50]
    L010e: vzeroupper
    L0111: add rsp, 0x78
    L0115: pop rsi
    L0116: pop rdi
    L0117: ret