/example1.go:6:10: inlining call to sum 编译器决定将sum函数内联到main函数中。
/main.go:28:29: inlining call to noescape ./main.go:36:6: can inline main ..../main.go:38:14: inlining call to NewA ./main.go:39:19: inlining call to NewATrick ..../main.go:39:19: inlining call to noescape ./main.go:40:17: inlining call to (*A).String ..../main.go:41:17: inlining call to (*ATrick).String /var/folders/45/qx9lfw2s2zzgvhzg3mtzkwzc0000gn/T/go-build763863171
某些 build environment 可以在连接期完成 inlining, 少量 build environment 如基于 .NET CLI 的 managed environments 可以在运行期完成...inlining, 但是大部分的 C++程序是在编译期完成 inlining. inline 只是对编译器的一个申请, 并不是强制命令....有时候编译器虽然有意愿 inlining 某个函数, 还是可能为该函数生成一个函数实体....于此并提的是, 编译器通常不对通过函数指针而进行的调用实施 inlining, 这意味这对 inline 函数的调用有可能被 inlined, 也可能不被 inlined , 取决于调用的方式: /**...注意 构造函数和析构函数往往是 inlining 的糟糕候选人, 例如: class Base { private: std::string bm1, bm2; }; class Derived
/main.go:28:29: inlining call to noescape./main.go:36:6: can inline main..../main.go:38:14: inlining call to NewA./main.go:39:19: inlining call to NewATrick..../main.go:39:19: inlining call to noescape./main.go:40:17: inlining call to (*A).String..../main.go:41:17: inlining call to (*ATrick).String/var/folders/45/qx9lfw2s2zzgvhzg3mtzkwzc0000gn/T/go-build763863171
/test.go:15:17: inlining call to maxValue func(int, int) int { if a > b { return a }; return b } ..../test.go:9:13: inlining call to fmt.Println func(...interface {}) (int, error) { var fmt..autotmp_3 int.../test1.go： -- inlining tree for "".Sum: 0 | -1 | "".add (/Users/go/src/asong.cloud/Golang_Dream/code_demo.../inline/test1.go:11:12) pc=39 -- 从结果我们可以看到在inlining tree中为.Sum和.add添加了映射关系。...参考文章：https://medium.com/a-journey-with-go/go-inlining-strategy-limitation-6b6d7fc3b1be 文中代码已上传github：
Inlining是指在编译时识别callsite的目标方法，将其方法体纳入编译范围并用其返回结果替换原callsite。...最简单直观的例子便是Java中常见的getter/setter方法 — inlining可以将一个方法中调用getter/setter的callsite优化成单一内存访问指令。...Inlining被业内戏称为优化之母，其原因在于它能引发更多优化。然而在实践中我们往往受制于编译单元大小或编译时间的限制，无法无限制地递归inline。...因此，inlining的算法及策略很大程度上决定了编译器的优劣，尤其是在使用Java 8的stream API或使用Scala语言的场景下。...编译器中常见的应用有两类：如果对象仅被单一线程访问，则可去除针对该对象的锁操作；如果对象为堆分配且仅被单一方法访问（inlining的重要性再次体现），则可将该对象转化成栈分配。
evictedItems []keyAndValue now := time.Now().UnixNano() c.mu.Lock() for k, v := range c.items { // "Inlining...NoExpiration), the item never expires. func (c *cache) Set(k string, x interface{}, d time.Duration) { // "Inlining.../ whether the key was found. func (c *cache) Get(k string) (interface{}, bool) { c.mu.RLock() // "Inlining...found. func (c *cache) GetWithExpiration(k string) (interface{}, time.Time, bool) { c.mu.RLock() // "Inlining
stripping meta-data, dynamic resizing, recompression CSS & JavaScript minification, concatenation, inlining..., and outlining Small resource inlining Deferring image and JavaScript loading HTML rewriting Cache lifetime
EmployeeList的GetEnumerator是virtual方法导致不能充分利用Inlining的编译优化。...Inlining是C++中广泛运用的一种编译优化方案，甚至在C++有Inlining关键字。...NET语言，比如C#，对应的编译器也充分利用了这一编译优化方案，编译器能够分析程序的执行来确定是否采用Inlining的编译方式。...但是对应virtual方法调用的运行时对象类型而非其申明类型中定义的方法，在编译的时候，Complier是不可能获得某一个对象运行时属于什么类型的，所以它也不可能运用Inlining这种编译优化方案。...new ArrayListEnumeratorSimple(this); } 同Array不同的是，GetEnumerator方法被定义成virtual，所以对于Arraylist来说，它也不可以利用Inlining
下面是一个示例查询，我们可以使用它来查看 JIT 编译时间最长的查询（占时间的百分比）： select ((jit_generation_time + jit_inlining_time + jit_optimization_time...total_plan_time)) as jit_total_time_percent, calls, jit_functions, jit_generation_time, jit_inlining_count..., jit_inlining_time, jit_optimization_count, jit_optimization_time, jit_emission_count, jit_emission_time
/main.go:13:10: inlining call to foo ..../main.go:16:13: inlining call to fmt.Println /var/folders/45/qx9lfw2s2zzgvhzg3mtzkwzc0000gn/T/go-build409982591
(actual time=0.019..0.052 rows=356 loops=1) Planning Time: 0.133 ms JIT: Functions: 3 Options: Inlining...false, Optimization false, Expressions true, Deforming true Timing: Generation 1.259 ms, Inlining 0.000
/scratch_16.go:6:12: inlining call to add ./scratch_16.go:7:13: inlining call to fmt.Println ....以上描述翻译自文章：https://medium.com/a-journey-with-go/go-inlining-strategy-limitation-6b6d7fc3b1be 总结 内联是高性能编程的一种重要手段
finline-small-functions,inline-small-functions,-frerun-cse-after-loop,-fhoist-adjacent-loads,-findirect-inlining...,-freorder-functions,no-stack-protector,-fpartial-inlining,-fsched-interblock,-fcse-follow-jumps,-fcse-skip-blocks
100,5711}'::integer[]) Rows Removed by Filter: 3333333 Planning Time: 0.205 ms JIT: Functions: 12 Options: Inlining...false, Optimization false, Expressions true, Deforming true Timing: Generation 2.280 ms, Inlining 0.000...Index Cond: (tag && '{61568,97350}'::integer[]) Planning Time: 0.082 ms JIT: Functions: 12 Options: Inlining...false, Optimization false, Expressions true, Deforming true Timing: Generation 2.078 ms, Inlining 0.000
Thymeleaf tutorial - Solution for exercise 13: inlining
函数内联 如果程序中存在大量的小函数的调用，函数内联（function call inlining）就会直接用函数体替换掉函数调用来 减少因为函数调用而造成的额外上下文切换开销 。...main.go:3:6: can inline main with cost 28 as: func() { n := 1; for loop; println(n) } main.go:6:13: inlining
=12.100..5460.438 rows=10000000 loops=1) Planning Time: 0.081 ms JIT: Functions: 1 Options: Inlining...true, Optimization false, Expressions true, Deforming false Timing: Generation 0.389 ms, Inlining...created_functions = 1, generation_counter = {ticks = 315193}, deform_counter = {ticks = 0}, inlining_counter...if (running_instcount > inlineState.costLimit) { ilog(DEBUG1, "skipping inlining of %s due to...标记已经Inline inlineState.inlined = true; break; } else { ilog(DEBUG1, "had to skip inlining
fhoist-adjacent-loads ---- likely和unlikely 猜测if/else的情况 -finline-small-functions ---- 小函数inline化 -findirect-inlining...flra-remat -foptimize-sibling-calls ---- 优化重复调用和递归调用 -foptimize-strlen ---- 优化标准C strlen函数实现 -fpartial-inlining
swap(value, rhs.value); } ~Widget() { delete value; } private: int *value; }; ---- 条款30、透彻了解inlining...的里里外外 将大多数inlining限制在小型、被频繁调用的函数身上。
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