On Thu, 16 Dec 2004, Justin Mason wrote:
> In other words, with gcc optimisation, is the branch instruction used for
> the "if" case or the "else" case by default?
Does it matter? It comes down to:
<instructions to evaluate conditional>
<instructions for case1>
<instructions for case2>
<rest of programme>
The other case is exact same except with a branch-on-equal instead of
not-equal and the cases reversed. There's no difference really.
If either of the cases is anything more than a trivial amount of
code, put it in a function - that will help more than anything else
on modern CPUs.
Paul Jakma paul at clubi.iepaul at jakma.org Key ID: 64A2FF6A
If you had better tools, you could more effectively demonstrate your
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