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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4763 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.5 KiB
C++
42 lines
1.5 KiB
C++
//===- Cloning.h - Clone various parts of LLVM programs ---------*- C++ -*-===//
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//
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// This file defines various functions that are used to clone chunks of LLVM
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// code for various purposes. This varies from copying whole modules into new
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// modules, to cloning functions with different arguments, to inlining
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// functions, to copying basic blocks to support loop unrolling or superblock
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// formation, etc.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_UTIlS_CLONING_H
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#define LLVM_TRANSFORMS_UTIlS_CLONING_H
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#include <vector>
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class Module;
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class Function;
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class BasicBlock;
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class Value;
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class CallInst;
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// Clone OldFunc into NewFunc, transforming the old arguments into references to
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// ArgMap values. Note that if NewFunc already has basic blocks, the ones
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// cloned into it will be added to the end of the function.
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//
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void CloneFunctionInto(Function *NewFunc, const Function *OldFunc,
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const std::vector<Value*> &ArgMap);
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// InlineFunction - This function forcibly inlines the called function into the
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// basic block of the caller. This returns true if it is not possible to inline
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// this call. The program is still in a well defined state if this occurs
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// though.
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//
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// Note that this only does one level of inlining. For example, if the
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// instruction 'call B' is inlined, and 'B' calls 'C', then the call to 'C' now
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// exists in the instruction stream. Similiarly this will inline a recursive
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// function by one level.
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//
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bool InlineFunction(CallInst *C);
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#endif
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