feat(vpto): add AICore ld_dev and st_dev ops

[mouliangyu]

背景

普通 AICore 的 scalar GM data-cache bypass 与 SIMT pto.ldg / pto.stg 属于不同执行域和 intrinsic 家族。此前普通 pto.aicore 函数中的误用会通过 PTO verifier，随后使 Bisheng 在 device LLVM 编译阶段崩溃。

Closes #1032

主要变更

• 先补齐现有 pto.ldg / pto.stg 的 placement verifier，只允许其位于 pto.simt_entry 或 pto.section.simt。
• 新增独立的普通 AICore micro-op：pto.ld_dev 与 pto.st_dev，不继承 SIMT op。
• 首版接口仅支持 !pto.ptr<T, gm> 与 T = i8/i16/i32/i64；offset 为元素步长，load result/store value 必须与指针元素类型一致。
• 固定绕过本地 L1 data cache，不接受 l1cache / l2cache policy 属性，也不隐含 atomic、同步、内存序、invalidate 或 writeback 语义。
• 将 element offset 先 lower 为 typed GEP，再调用 offset 为 0 的 llvm.hivm.LD.DEV.u*.GM / llvm.hivm.ST.DEV.u*。
• 仅在 A5 且 CANN output version 9.0.0 official 或更新版本开放；A2/A3 与 9.0.0-beta.1 在进入 Bisheng 前给出明确诊断。
• 保持 Group 14 为纯 shared arith、Group 17 为 SIMT；新增 Group 18 Special Scalar Operations，收录 10 个 PTO scalar kernel query、pointer/address 与 scalar-memory op。
• 将 Group 18 从操作目录扩展为可独立阅读的手册：逐项说明 purpose、完整 syntax、operand/result/attribute、类型与地址空间约束、offset 单位、语义伪代码、execution scope、target gating 和示例。
• docs/vpto-spec.md 保留总体说明和索引，同一批 scalar op 的重复逐项定义改为链接到 Group 18，避免两处规范成为不同真源。

测试

• cmake --build build --target PTOASPythonPackage -j16
• 5 个聚焦 VPTO lit 全部通过，覆盖 verifier、SIMT placement、i8/i16/i32/i64 LLVM emission、动态/静态 element offset 及 target/version gating；这些 compiler regression tests 不依赖 CANN 工具链。
• test/vpto/scripts/run_host_vpto_validation.sh 的 micro-op/scalar-load-store/ld-st-dev A5 simulator case 通过 fatobj/device-object emission、host build、runtime 与 golden compare。
• 文档改动通过 git diff --check，并检查 Group 18 恰好包含 10 个 PTO scalar op 的独立手册小节，docs/vpto-spec.md 不再重复定义这些 op。

Runtime 与 object compilation 当前覆盖 i32 非零 offset roundtrip；i8/i16/i32/i64 四种宽度均由 LLVM emission 用例覆盖。

[reedhecre]

A5 板测成功

• 触发方式：merged
• 源码提交：d5072e79a07d
• 结果汇总：OK 21 / FAIL 0 / SKIP 0
• 日志：/root/ptoas-board-monitor-a5/logs/20260805_111104_merged_pr1125.log
• 结果 TSV：/root/ptoas-board-monitor-a5/logs/20260805_111104_merged_pr1125.tsv

[reedhecre]

A3 板测失败

• 触发方式：merged
• 源码提交：d5072e79a07d
• 结果汇总：OK 218 / FAIL 2 / SKIP 3
• 日志：/home/zhongxuan/ptoas-board-monitor/runtime/logs/20260804_201006_merged_pr1125.log
• 失败阶段：board-validation / exit=1

失败用例

• comm_p2p_binding_variants (run, exit=1)
• comm_p2p (run, exit=1)

[reedhecre]

A3 板测失败详情：PR #1125

comm_p2p_binding_variants

stage=run info=exit=1

[ERROR] aclrtSynchronizeStream(stream) failed: 507035 (/home/zhongxuan/ptoas-board-monitor/runtime/runs/20260804_201006_merged_pr1125/npu_validation/CommSync/comm_p2p_binding_variants/main.cpp:122)
[ERROR] RecentErrMsg: EZ9999: Inner Error!
EZ9999[PID: 1818261] 2026-08-04-20:52:16.645.950 (EZ9999):  The error from device(chipId:0, dieId:1), serial number is 2630, there is an exception of aivec error, core id is 10, error code = 0x10, dump info: pc start: 0x124200000000, current: 0x124200000164, vec error info: 0x4000000b7, mte error info: 0xa5030000e9, ifu error info: 0x2000100584480, ccu error info: 0x40e008000000004f, cube error info: 0, biu error info: 0, aic error mask: 0x6500020bd00028c, para base: 0x12c100000000.[FUNC:PrintCoreInfo][FILE:device_error_core_proc.cc][LINE:645]
        TraceBack (most recent call last):
       The extend info: errcode:(0x10, 0, 0) errorStr: Illegal instruction, which is usually caused by unaligned UUB addresses. fixp_error0 info: 0x30000e9, fixp_error1 info: 0xa5, fsmId:0, tslot:6, thread:0, ctxid:0, blk:0, sublk:0, subErrType:4.[FUNC:PrintCoreInfo][FILE:device_error_core_proc.cc][LINE:658]
       Kernel task happen error, retCode=0x31, [vector core exception].[FUNC:PreCheckTaskErr][FILE:davinci_kernel_task.cc][LINE:1729]
       AIV Kernel happen error, retCode=0x31.[FUNC:GetError][FILE:stream.cc][LINE:1475]
       [AIC_INFO] after execute:args print end[FUNC:GetError][FILE:stream.cc][LINE:1475]
       [DFX_INFO]Aicore kernel execute failed, device_id=1, stream_id=46, report_stream_id=46, task_id=0, flip_num=0, fault kernel_name=comm_p2p_binding_variants_kernel, fault kernel info ext=comm_p2p_binding_variants_kernel, program id=0, hash=3889294368825709812.[FUNC:GetError][FILE:stream.cc][LINE:1475]
       rtStreamSynchronize execution failed, reason=vector core exception[FUNC:FuncErrorReason][FILE:error_message_manage.cc][LINE:65]
       synchronize stream failed, runtime result = 507035[FUNC:ReportCallError][FILE:log_inner.cpp][LINE:148]
[2026-08-04 20:52:19] ERROR: testcase failed (exit 1): comm_p2p_binding_variants

comm_p2p

stage=run info=exit=1

[ERROR] aclrtSynchronizeStream(stream) failed: 507035 (/home/zhongxuan/ptoas-board-monitor/runtime/runs/20260804_201006_merged_pr1125/npu_validation/CommSync/comm_p2p/main.cpp:122)
[ERROR] RecentErrMsg: EZ9999: Inner Error!
EZ9999[PID: 1836986] 2026-08-04-20:52:37.388.906 (EZ9999):  The error from device(chipId:0, dieId:1), serial number is 2631, there is an exception of aivec error, core id is 15, error code = 0x10, dump info: pc start: 0x124200000000, current: 0x124200000168, vec error info: 0x4000000b7, mte error info: 0xec06000023, ifu error info: 0x212c0d6200800, ccu error info: 0x40e028000000004f, cube error info: 0, biu error info: 0, aic error mask: 0x6500020bd00028c, para base: 0x12c100000000.[FUNC:PrintCoreInfo][FILE:device_error_core_proc.cc][LINE:645]
        TraceBack (most recent call last):
       The extend info: errcode:(0x10, 0, 0) errorStr: Illegal instruction, which is usually caused by unaligned UUB addresses. fixp_error0 info: 0x6000023, fixp_error1 info: 0xec, fsmId:1, tslot:6, thread:0, ctxid:0, blk:0, sublk:0, subErrType:4.[FUNC:PrintCoreInfo][FILE:device_error_core_proc.cc][LINE:658]
       Kernel task happen error, retCode=0x31, [vector core exception].[FUNC:PreCheckTaskErr][FILE:davinci_kernel_task.cc][LINE:1729]
       AIV Kernel happen error, retCode=0x31.[FUNC:GetError][FILE:stream.cc][LINE:1475]
       [AIC_INFO] after execute:args print end[FUNC:GetError][FILE:stream.cc][LINE:1475]
       [DFX_INFO]Aicore kernel execute failed, device_id=1, stream_id=46, report_stream_id=46, task_id=0, flip_num=0, fault kernel_name=comm_p2p_kernel, fault kernel info ext=comm_p2p_kernel, program id=0, hash=15664819858989799263.[FUNC:GetError][FILE:stream.cc][LINE:1475]
       rtStreamSynchronize execution failed, reason=vector core exception[FUNC:FuncErrorReason][FILE:error_message_manage.cc][LINE:65]
       synchronize stream failed, runtime result = 507035[FUNC:ReportCallError][FILE:log_inner.cpp][LINE:148]
[2026-08-04 20:52:38] ERROR: testcase failed (exit 1): comm_p2p