| //===-- ConstantFolding.h - Analyze constant folding possibilities --------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by the LLVM research group and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This family of functions determines the possibility of performing constant |
| // folding. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/Constants.h" |
| #include "llvm/Function.h" |
| using namespace llvm; |
| |
| namespace llvm { |
| |
| /// canConstantFoldCallTo - Return true if its even possible to fold a call to |
| /// the specified function. |
| extern |
| bool canConstantFoldCallTo(Function *F); |
| |
| /// ConstantFoldFP - Given a function that evaluates the constant, return an |
| /// LLVM Constant that represents the evaluated constant |
| extern Constant * |
| ConstantFoldFP(double (*NativeFP)(double), double V, const Type *Ty); |
| |
| /// ConstantFoldCall - Attempt to constant fold a call to the specified function |
| /// with the specified arguments, returning null if unsuccessful. |
| extern Constant * |
| ConstantFoldCall(Function *F, const std::vector<Constant*> &Operands); |
| } |
| |