Re: [PATCH 2/7] PowerPC: add unlikely() to BUG_ON()

"David Laight" [off-list ref] writes:

Also, as (I think) in some of the generated code quoted,
use of __builtin_expect() with a boolean expression can
force some versions of gcc to generate the integer
value of the expression

That's more likely a side effect of the definition of likely/unlikely:
they expand to !!(x).

Andreas.

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Andreas Schwab, schwab@redhat.com
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