From 6ade6f55a836129af634074e96f660ff23f59a30 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Thu, 2 Oct 2008 22:09:09 +0000 Subject: Add a new MachineBasicBlock utility function, isLayoutSuccessor, that can be used when deciding if a block can transfer control to another via a fall-through instead of a branch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56968 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/MachineBasicBlock.cpp | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'lib/CodeGen/MachineBasicBlock.cpp') diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp index 0320affa3a..bac0a6cc71 100644 --- a/lib/CodeGen/MachineBasicBlock.cpp +++ b/lib/CodeGen/MachineBasicBlock.cpp @@ -254,6 +254,11 @@ bool MachineBasicBlock::isSuccessor(MachineBasicBlock *MBB) const { return I != Successors.end(); } +bool MachineBasicBlock::isLayoutSuccessor(MachineBasicBlock *MBB) const { + MachineFunction::const_iterator I(this); + return next(I) == MachineFunction::const_iterator(MBB); +} + /// removeFromParent - This method unlinks 'this' from the containing function, /// and returns it, but does not delete it. MachineBasicBlock *MachineBasicBlock::removeFromParent() { -- cgit v1.2.3-18-g5258