diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/CodeGen/MachineBasicBlock.h | 6 | ||||
| -rw-r--r-- | include/llvm/CodeGen/Passes.h | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h index 78662784eb..6b4c64055b 100644 --- a/include/llvm/CodeGen/MachineBasicBlock.h +++ b/include/llvm/CodeGen/MachineBasicBlock.h @@ -271,6 +271,12 @@ public: /// ends with an unconditional branch to some other block. bool isLayoutSuccessor(const MachineBasicBlock *MBB) const; + /// canFallThrough - Return true if the block can implicitly transfer + /// control to the block after it by falling off the end of it. This should + /// return false if it can reach the block after it, but it uses an explicit + /// branch to do so (e.g., a table jump). True is a conservative answer. + bool canFallThrough(); + /// getFirstTerminator - returns an iterator to the first terminator /// instruction of this basic block. If a terminator does not exist, /// it returns end() diff --git a/include/llvm/CodeGen/Passes.h b/include/llvm/CodeGen/Passes.h index 99444984b4..26167876ef 100644 --- a/include/llvm/CodeGen/Passes.h +++ b/include/llvm/CodeGen/Passes.h @@ -129,6 +129,10 @@ namespace llvm { /// branches. FunctionPass *createBranchFoldingPass(bool DefaultEnableTailMerge); + /// TailDuplication Pass - Duplicate blocks with unconditional branches + /// into tails of their predecessors. + FunctionPass *createTailDuplicationPass(); + /// IfConverter Pass - This pass performs machine code if conversion. FunctionPass *createIfConverterPass(); |