[llvm-commits] [patch] Add a pass for duplicating indirectbr at the IL level

[Rafael Ávila de Espíndola]

>> The current taildup approach is
>> very naive.  It cannot handle important cases like duplicating past
>> conditional branches,

While this is an interesting problem and I am still interested in what
is the algorithm you have in mind, it doesn't look very common in practice.

In the WekKit interpreter, my pass is able to duplicate indirectgoto bb
into every predecessor. The IL before the pass is in

http://people.mozilla.com/~respindola/test-webkit.ll.xz

Cheers,
Rafael