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arch/tile: work around a hardware issue with the return-address stack
authorChris Metcalf <cmetcalf@tilera.com>
Thu, 29 Mar 2012 18:52:00 +0000 (14:52 -0400)
committerChris Metcalf <cmetcalf@tilera.com>
Mon, 2 Apr 2012 16:12:48 +0000 (12:12 -0400)
In certain circumstances we need to do a bunch of jump-and-link
instructions to fill the hardware return-address stack with nonzero values.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

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