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-rw-r--r--include/llvm/CodeGen/MachineBasicBlock.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h
index dcbcb25..3cfc47a 100644
--- a/include/llvm/CodeGen/MachineBasicBlock.h
+++ b/include/llvm/CodeGen/MachineBasicBlock.h
@@ -282,6 +282,13 @@ public:
/// branch to do so (e.g., a table jump). True is a conservative answer.
bool canFallThrough();
+ /// Returns a pointer to the first instructon in this block that is not a
+ /// PHINode instruction. When adding instruction to the beginning of the
+ /// basic block, they should be added before the returned value, not before
+ /// the first instruction, which might be PHI.
+ /// Returns end() is there's no non-PHI instruction.
+ iterator getFirstNonPHI();
+
/// getFirstTerminator - returns an iterator to the first terminator
/// instruction of this basic block. If a terminator does not exist,
/// it returns end()