[llvm-commits] [llvm] r114681 - /llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

Fri Sep 24 11:49:05 PDT 2010

On Sep 24, 2010, at 10:48 AM, Evan Cheng wrote:

> There is definitely a codegen bug downstream. A unconditional branch to a fallthrough block is correct the last time I checked. If someone has some time to look into this, I would appreciate a test case.

It looks like MachineBasicBlock::canFallThrough affects codegen which could trigger this bug, and MachineBasicBlock::updateTerminator looks like it is going to undo it anyway by removing the unconditional branch.

Is any code assuming the presence of an unconditional branch?

/jakob