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Implement a new RemoveSuccessor function

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3130 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-07-29 22:32:06 +00:00
parent 011de07117
commit 229a3770f6
1 changed files with 11 additions and 4 deletions
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15
include/llvm/Transforms/Utils/BasicBlockUtils.h
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@ -13,7 +13,6 @@
#include "llvm/BasicBlock.h"
class Instruction;
// ReplaceInstWithValue - Replace all uses of an instruction (specified by BI)
// with a value, then remove and delete the original instruction.
//
@ -28,10 +27,18 @@ void ReplaceInstWithInst(BasicBlock::InstListType &BIL,
BasicBlock::iterator &BI, Instruction *I);
// ReplaceInstWithInst - Replace the instruction specified by From with the
// instruction specified by To. Note that this is slower than providing an
// iterator directly, because the basic block containing From must be searched
// for the instruction.
// instruction specified by To.
//
void ReplaceInstWithInst(Instruction *From, Instruction *To);
// RemoveSuccessor - Change the specified terminator instruction such that its
// successor #SuccNum no longer exists. Because this reduces the outgoing
// degree of the current basic block, the actual terminator instruction itself
// may have to be changed. In the case where the last successor of the block is
// deleted, a return instruction is inserted in its place which can cause a
// suprising change in program behavior if it is not expected.
//
void RemoveSuccessor(TerminatorInst *TI, unsigned SuccNum);
#endif