| description | title | ms.date | helpviewer_keywords | ms.assetid | |||||
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Learn more about: Optimizing Inline Assembly |
Optimizing Inline Assembly |
08/30/2018 |
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52a7ec83-9782-4d96-94c1-53bb2ac9e8c8 |
Microsoft Specific
The presence of an __asm block in a function affects optimization in several ways. First, the compiler doesn't try to optimize the __asm block itself. What you write in assembly language is exactly what you get. Second, the presence of an __asm block affects register variable storage. The compiler avoids enregistering variables across an __asm block if the register's contents would be changed by the __asm block. Finally, some other function-wide optimizations will be affected by the inclusion of assembly language in a function.
END Microsoft Specific