Re: [RFC] Observations on x86 process.c

[cutaway]

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" <jengelh@xxxxxxxxxxxxxxx>
>
> 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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