/GA (Optimize for Windows Application)

Results in more efficient code for an .exe file for accessing thread-local storage (TLS) variables.

Syntax

/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

1. Open the project's Property Pages dialog box. For details, see Set C++ compiler and build properties in Visual Studio.

2. Select the Configuration Properties > C/C++ > Command Line property page.

3. Enter the compiler option in the Additional Options box.

To set this compiler option programmatically

• See AdditionalOptions.

See also

MSVC Compiler Options
MSVC Compiler Command-Line Syntax