compiler-optimization

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Cost of small method calls in C# and optimization

I was wondering what the overhead of calling short methods were or if the code would get optimized either way and if it was different than the cost of getters?[详细]

2023-02-24 02:17 分类：问答
F# compiler questions

A couple questions about the F# compiler 1) what does --noframework do? I compiled with it but I still needed .Net 4.0(I thought maybe it allowed a port to an earlier version?) Does it remove an F# d[详细]

2023-02-22 10:59 分类：问答
How to see which flags -march=native will activate?

I\'m compiling my C++ app开发者_StackOverflow社区 using GCC 4.3. Instead of manually selecting the optimization flags I\'m using -march=native, which in theory should add all optimization flags applic[详细]

2023-02-20 16:47 分类：问答
Writing code to help the compiler to do optimizations

Does anyone know if there is a list of what a compiler do to op开发者_StackOverflowtimize a source code? I prefer GCC as example.[详细]

2023-02-20 05:21 分类：问答
Which variable should be optimize in following C code

If your compiler a开发者_如何转开发ctually optimizes access time of only two registers variables per function, which two variable in the following program are the best one to be made into register var[详细]

2023-02-17 08:21 分类：问答
How to find the address & length of a C++ function at runtime (MinGW)

As this is my first post to stackoverflow I want to thank you all for your valuable posts that helped me a lot in the past.[详细]

2023-02-17 03:08 分类：问答
Do redundant casts get optimized?

I am updating some old code, and have found several instances where the same object is being cast repeatedly each time one of its properties or methods needs to be called. Example:[详细]

2023-02-16 03:15 分类：问答
Are empty constructors always called in C++?

I have a general question, that may be a little compiler-specific. I\'m interested in the conditions under which a constructor will be called. Specifically, in release mode/builds optimised for speed,[详细]

2023-02-12 19:59 分类：问答
How to hint to Visual C++ compiler optimizer that a specific branch of an if-statement is unlikely to be executed?

We have a macro for error-checking that goes like this: #define CheckCondition( x ) \\ if( x ) { \\ //okay, do nothing开发者_StackOverflow \\[详细]

2023-02-12 18:53 分类：问答
GCC -O2 with -march / -ftree-vectorize

I am trying out several compiler switches against a program that performs sobel kernel convolution on two images( 2000Hx3000W and 6800Hx8500W ). There are some observations that I am not able to inter[详细]

2023-02-11 09:50 分类：问答