Visual C++ Compiler Options
/GA (Optimize for Windows Application)
Results in more efficient code for an .exe file for accessing thread-local storage (TLS) variables.
/GA
Remarks
/GA speeds access to data declared with __declspec(thread) in a Windows-based program. When this option is set, the __tls_index macro is assumed to be 0.
Using /GA for a DLL can result in bad code generation.
To set this compiler option in the Visual Studio development environment
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Open the project's Property Pages dialog box. For details, see How to: Open Project Property Pages.
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Click the C/C++ folder.
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Click the Command Line property page.
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Type the compiler option in the Additional Options box.
To set this compiler option programmatically
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See AdditionalOptions.
See Also