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Revision 9761ad75

ID9761ad757182be663fa31af99abad959ac63b17f

Added by Alexander Graf almost 12 years ago

PPC: Introduce an alias cache for faster lookups

When running QEMU with "-cpu ?" we walk through every alias for every
target CPU we know about. This takes several seconds on my very fast
host system.

Let's introduce a class object cache in the alias table. Using that we
don't have to go through the tedious work of finding our target class.
Instead, we can just go directly from the alias name to the target class
pointer.

This patch brings -cpu "?" to reasonable times again.

Before:
real 0m4.716s

After:
real 0m0.025s

Signed-off-by: Alexander Graf <>

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