There is one caveat: turning on the optimization means that the build time increases. The compiler attempts to do clever things, such as following loops and pulling out constants.
但有一个警告：启用优化意味着要增加编译时间——编译器尝试去做一些智能的事情，例如追随循环并分析出常量。
Currently, the GNU Compiler Collection is undergoing a massive renovation regarding performance optimization for the POWER architecture.
当前，人们正在对GNU编译器集进行重大革新，为POWER体系结构而进行性能优化。
Reducing the length of these methods can make them more amenable to optimization by a JIT compiler.
而缩短这些方法的长度有助于使JIT编译器更易于优化它们。
A JIT compiler would see an optimization opportunity here.
JIT编译器会在这里看到一个优化的机会。
With each higher level of optimization, compile time and systems resources used to compiler the source code increase as the additional amount of performance squeezed out decreases.
随着优化级别的提高，编译源代码所用的编译时间和系统资源增加，而性能的提升幅度下降。
The SQL compiler USES query optimization to select the best performing access path for any given SQL statement (within a reasonable amount of time, of course).
SQL编译器使用查询优化来为任何给定的sql语句选择表现最好的访问路径(当然，这要在合理的时间内)。
The use of switch/case also enables compiler optimization by using a jump table implementation.
使用switch/case也可以通过使用跳转表实现进行编译器优化。
What happens if the compiler makes such an optimization, and later a class is loaded that extends Foo?
如果编译器进行了这样的优化，然后装入了一个扩展了Foo的类，会发生什么？
A note on Pthreads scheduling and compiler optimization.
关于Pthread调度和编译器优化的几点说明。
If you want to disable the usage of the constraints by the SQL compiler, you can use the disable QUERY OPTIMIZATION clause. For example.
如果您想通过编译器禁用约束，那么可以使用DISABLEQUERYoptimization子句。
C99 introduced a qualifier, restrict, which can give a compiler optimization hints about Pointers.
C99引入了一个限定词restrict，它可以向编译器给出关于指针的优化提示。
Automated optimization is the most widely used technique, as this type of optimization is often performed by the compiler. The most common techniques are.
自动优化是使用最广泛的技术，因为这种优化常常由编译器执行。
The compiler can now perform analysis and optimization across multiple source files.
现在编译器可以跨多个源文件执行分析和优化。
The compiler is free to reorder certain instructions as an optimization when it would not change the semantics of the program.
当编译器不会改变程序的语义时，作为一种优化它可以随意地重新排序某些指令。
But in general, the compiler is faster in some optimization modes and provides many new enhancements, including new target support.
但是，通常情况下编译器在某些优化模式下会更快，并提供很多新的增强，包括新的目标支持。
The compiler will also now allow you to define an optimization level at the function level (instead of at the file level, which was the previous default).
编译器现在还允许在函数级(而不是在之前默认的文件级)定义一个优化级别。
A standard optimization is loop unrolling; the compiler will unroll the loops to reduce the number of branches.
标准的优化是循环展开；编译器将展开循环，以减少分支的数量。
This uses the compiler flags -O, -O2, -O3, where each level of optimization applies higher levels of optimization techniques to squeeze more and more performance.
这使用编译器标志-O、-O2、-O3（优化级别依次增高）来进一步挖掘性能潜力。
LLVM compiler optimization bug or what?
LLVM编译器优化的错误或什么？
Instruction scheduling is a very important technology during the procedure of compiler optimization.
指令调度是编译优化过程中的重要技术。
This paper inquires into a new method to be used to optimize handwork with assemble code created by C-compiler which needs optimization theory and assemble knowledge.
探讨了一种对C语言编译程序所生成的汇编代码进行人工干扰、手工优化的新方法。
This type system not only provides information for compiler optimization but also preserves the system flexibility resulting from dynamic binding.
这个类型系统不仅提供了编译优化信息，还保持了动态约束带来的系统灵活性。
How to make closure compiler to remove all dead code with advanced optimization in larger projects?
如何关闭编译器用在较大的项目中先进的优化删除死代码？
This paper proposes a low power optimization framework based on retargetable compiler, which aims at the shortcomings of traditional low power optimization in generalization.
文章针对传统功耗优化缺乏通用性的缺点，提出一个基于可重定向编译器的功耗优化框架。
Speculation is a very effective way to improve instruction level parallelism as an advance compiler optimization technique.
投机优化技术作为一种先进的现代编译技术，有效地提高了指令执行的并行性。
Compiler optimization used manual tuning technique in the past several decades.
过去几十年编译器的优化主要使用的是人工调优的方法。
In this case the compiler could have full knowledge of all callers, so I suppose it could make the optimization.
在这种情况下，编译器可能具有所有调用者的所有知识，所以我想它可以进行优化。
Feedback directed data prefetching optimization has become one of the advanced compiler optimization techniques. it can do well in linked data prefetching.
反馈式数据预取优化技术是当前高性能计算技术中前沿的一种编译优化手段，可以很好地解决链式结构的预取问题。
In an optimizing compiler, the optimization can be divided into two categories: machine-independent optimization and machine-dependent optimization.
在一个优化编译器中，优化可分为机器无关优化和机器相关优化。
In an optimizing compiler, the optimization can be divided into two categories: machine-independent optimization and machine-dependent optimization.
在一个优化编译器中，优化可分为机器无关优化和机器相关优化。
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