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by Analysis and Transformation passes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24038 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.3 KiB
C++
37 lines
1.3 KiB
C++
//===-- ConstantFolding.h - Analyze constant folding possibilities --------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This family of functions determines the possibility of performing constant
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// folding.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Constants.h"
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#include "llvm/Function.h"
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using namespace llvm;
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namespace llvm {
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/// canConstantFoldCallTo - Return true if its even possible to fold a call to
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/// the specified function.
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extern
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bool canConstantFoldCallTo(Function *F);
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/// ConstantFoldFP - Given a function that evaluates the constant, return an
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/// LLVM Constant that represents the evaluated constant
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extern Constant *
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ConstantFoldFP(double (*NativeFP)(double), double V, const Type *Ty);
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/// ConstantFoldCall - Attempt to constant fold a call to the specified function
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/// with the specified arguments, returning null if unsuccessful.
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extern Constant *
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ConstantFoldCall(Function *F, const std::vector<Constant*> &Operands);
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}
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