diff options
Diffstat (limited to 'include/llvm/Instructions.h')
| -rw-r--r-- | include/llvm/Instructions.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/llvm/Instructions.h b/include/llvm/Instructions.h index 06d0490..a27ce2b 100644 --- a/include/llvm/Instructions.h +++ b/include/llvm/Instructions.h @@ -467,7 +467,8 @@ public: //===----------------------------------------------------------------------===// /// CallInst - This class represents a function call, abstracting a target -/// machine's calling convention. +/// machine's calling convention. This class uses the SubClassData field to +/// indicate whether or not this is a tail call. /// class CallInst : public Instruction { CallInst(const CallInst &CI); @@ -501,6 +502,9 @@ public: virtual CallInst *clone() const; bool mayWriteToMemory() const { return true; } + bool isTailCall() const { return SubclassData; } + void setTailCall(bool isTailCall) { SubclassData = isTailCall; } + /// getCalledFunction - Return the function being called by this instruction /// if it is a direct call. If it is a call through a function pointer, /// return null. |