Chris Metcalf 9f1d62bed7 tile: fix bug where fls(0) was not returning 0 ...

This is because __builtin_clz(0) returns 64 for the "undefined" case
of 0, since the builtin just does a right-shift 32 and "clz" instruction.
So, use the alpha approach of casting to u32 and using __builtin_clzll().

Cc: stable@vger.kernel.org
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

2012-05-25 15:00:43 -04:00

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