Question about compiler flags

Question about compiler flags

Can anybody tell methe compiler flags that Ishouldinsert in my make fileto use built-in function in gcc like __builtin_prefetch.
Thanks in advance.

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Hi,

GCC includes built-in versions of many of the functions in the standard C library (including __builtin_prefetch).
Examples can be found in gcc doc: http://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html
As I understood there's no special flag you need to add in order to use __builtin_prefetch?
It works fine for me with an example makefile.

Thanks, It is a really nice link

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