They are free to, but I've rarely(never?) seen GCC actually do it with the
default build setup. Don't trust me - look at a generated ASM listing and
convince yourself what I'm saying is true. GCC does a lot of massive
reordering within functions though.
Throw a "CFLAGS += -Wa,-al=$<.lst" at the top of the Makefile. That'll
generate a "process.c.lst" assembler listing file.
IAC, it would be harmless if one did, and goodness if one doesn't. That
sounds like a win to me :)
Tony
----- Original Message -----
From: "Jan Engelhardt" <[email protected]>
>
> C compilers are free to reorder functions (are they?), especially GCC when
it
> is passed -funit-at-a-time (which currently is not in CFLAGS).
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