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Optimizing the compiler for iPhone apps

The "Build" section of project info in XCode offers lots of compiler settings.开发者_JAVA百科 I'm seeing good improvements in performance (up to about 20%) when I choose the LLVM GCC 4.2 compiler with the "FASTEST-O3" setting.

Are there other settings that also improve performance when compiling for the iPhone?


If your are using lots of floating-point operations, it may be help to turn off compile for Thumb for the ARMv6 architecture.

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