intx,y,r; voidf() { x=r; y=1; } 编译器优化的结果可能导致 y = 1 在 x = r 之前执行完成。首先直接编译此源文件: g++-S test.cpp 得到相关的汇编代码如下: movl r(%rip),%eax movl%eax,x(%rip) movl $1,y(%rip) 这里我们看到,x = r 和 y = 1 并没有乱序。现使用优化选项 O2(或...
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#include <functional> #include <cassert> #include <boost/program_options.hpp> #include <boost/variant.hpp> #include <boost/tokenizer.hpp> classA { public: intsum=0; intnum=0; A(inti):num(i){} boolf(inti) { returni == 20; } voidtest(inti) { cout<<i<<endl; sum+=i; } void...
如果,在L3处加入//@ assert 0 < x < 10这个约束,就可以引导分析过程来消除该误报。 除了assert,程序标注还包括函数合约(Function Contract)和循环不变式(Loop Invariant)等。函数合约描述函数的输入和输出的约束;Loop Invariant描述循环的约束,帮助Value Analysis更好的理解程序中复杂循环的语义,有助于消减分析过程...
Node* x = head_; // head节点 int level = GetMaxHeight() - 1; // 当前层高 while (true) { assert(x == head_ || compare_(x->key, key) < 0); Node* next = x->Next(level); if (next == nullptr || compare_(next->key, key) >= 0) { // 如果next节点为空或 next节点大...
Node* x = reinterpret_cast<Node*>(const_cast<char*>(key)) - 1; // x即为next_[0] const DecodedKey key_decoded = compare_.decode_key(key); int height = x->UnstashHeight(); assert(height >= 1 && height <= kMaxHeight_); ...
unwrap(); client.set(b"hello", b"MemCachier", 0xdeadbeef, 2).unwrap(); let (value, flags) = client.get(b"hello").unwrap(); println!("Got: {}", std::str::from_utf8(&value).unwrap()); assert_eq!(&value[..], b"MemCachier"); assert_eq!(flags, 0xdeadbeef); } ...
assert(parents[-1] == name) fqn = get_fqn() memory_tracking[fqn]["After Forward"] = get_current_memory_allocated() parents.pop() return f def enter_module_backward(name:str): @torch.no_grad def f (module:nn.Module, grad_output:Any): global parents parents.append(name) fqn = get...
+ assert(PerformCleanup && "adding temps to dead scope?"); + ForRangeInitTemps.push_back({M, Object}); + } + + ArrayRef<ForRangeInitLifetimeExtendTemporary> getForRangeInitTemps() const { + return ForRangeInitTemps; + } + + void setForRangeVar(const VarDecl *Var) { ForRangeVar =...
graphic_assert.h graphic_math.h graphic_types.h grid_layout.h hdf_base.h hdf_device_desc.h hdf_dlist.h hdf_io_service_if.h hdf_log.h hdf_netbuf.h hdf_object.h hdf_platform.h hdf_sbuf.h hdf_wifi_event.h hdf_wifi_product.h hdf_wlan_chipdriver_manager.h ...