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Add prototype for new CloneBasicBlock function

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5804 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-04-18 03:49:22 +00:00
parent 681cfb9ab4
commit a107e5f11c
1 changed files with 28 additions and 2 deletions
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30
include/llvm/Transforms/Utils/Cloning.h
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@ -8,8 +8,8 @@
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_UTIlS_CLONING_H
#define LLVM_TRANSFORMS_UTIlS_CLONING_H
#ifndef LLVM_TRANSFORMS_UTILS_CLONING_H
#define LLVM_TRANSFORMS_UTILS_CLONING_H
#include <vector>
#include <map>
@ -24,6 +24,32 @@ class ReturnInst;
///
Module *CloneModule(const Module *M);
/// CloneBasicBlock - Return a copy of the specified basic block, but without
/// embedding the block into a particular function. The block returned is an
/// exact copy of the specified basic block, without any remapping having been
/// performed. Because of this, this is only suitable for applications where
/// the basic block will be inserted into the same function that it was cloned
/// from (loop unrolling would use this, for example).
///
/// Also, note that this function makes a direct copy of the basic block, and
/// can thus produce illegal LLVM code. In particular, it will copy any PHI
/// nodes from the original block, even though there are no predecessors for the
/// newly cloned block (thus, phi nodes will have to be updated). Also, this
/// block will branch to the old successors of the original block: these
/// successors will have to have any PHI nodes updated to account for the new
/// incoming edges.
///
/// The correlation between instructions in the source and result basic blocks
/// is recorded in the ValueMap map.
///
/// If you have a particular suffix you'd like to use to add to any cloned
/// names, specify it as the optional second parameter.
///
BasicBlock *CloneBasicBlock(const BasicBlock *BB,
std::map<const Value*, Value*> &ValueMap,
const char *NameSuffix = "");
/// CloneFunction - Return a copy of the specified function, but without
/// embedding the function into another module. Also, any references specified
/// in the ValueMap are changed to refer to their mapped value instead of the