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Optimizations

Started by RelisH Dec 27, 2001 at 9:33 AM 0 replies 300+ views

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Dec 27, 2001 at 9:33 AM

What sorts of optimizations does the Visual C++ 6 compiler (enterprise version) do? The ones that about which I am most curious is whether it removes redundant brackets (i.e a = "(1+(6*9));") and if it doesn''t include any functions that aren''t used

SteveC

Dec 27, 2001 at 9:57 AM

parenthesis, eg. ''('' and '')'' don''t generate code themselves, they can control the order of the code generation.

So basically on that front you have nothing to worry about.

As far as removing functions that aren''t used from a binary image, that is the job of the linker.

''strip dead code'' or some other such optimizations for the linker will help reduce code size. but that has no direct impact on performance of the code - it may impact the performance of the application - if it fits in a smaller memory footprint there could be less swap file activity.

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