如何在发布模式下查看 Visual Studio 中的代码？

Question

When I change from debug to release mode in Visual Studio and the code is being optimized after debugging in Release Mode, can I see what the optimized code looks like? Or it is already a binary code that is optimized so Visual Studio itself doesn't optimize the code by rewriting it in C++, so there is no any C++ code that is my code but already rewritten for optimalization.

Answer 1

The following works for both Debug and Release builds:

1. Set a breakpoint on the line(s) of interest.

2. Launch your program under the debugger (F5).

3. When your program breaks, right-click and select 'Go To Disassembly'.

But just to say, the code generated by the compiler in Release mode is not always easy to follow so be prepared for some surprises.

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[Edit] As per @paddy's comment above, make sure that you compile your project with debugging information included, otherwise none of this will work properly:

Project properties -> C/C++ -> General -> Debug Information Format = Program Database (/Zi)