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add method, correct comment

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30584 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-09-23 04:03:45 +00:00
parent f10c17f986
commit a71965b1ad
2 changed files with 17 additions and 6 deletions
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10
include/llvm/BasicBlock.h
View File

@ -109,11 +109,15 @@ public:
///
void eraseFromParent();
/// moveBefore - Unlink this instruction from its current function and
/// insert it into the function that MovePos lives in, right before
/// MovePos.
/// moveBefore - Unlink this basic block from its current function and
/// insert it into the function that MovePos lives in, right before MovePos.
void moveBefore(BasicBlock *MovePos);
/// moveAfter - Unlink this basic block from its current function and
/// insert it into the function that MovePos lives in, right after MovePos.
void moveAfter(BasicBlock *MovePos);
/// getSinglePredecessor - If this basic block has a single predecessor block,
/// return the block, otherwise return a null pointer.
BasicBlock *getSinglePredecessor();

13
lib/VMCore/BasicBlock.cpp
View File

@ -103,14 +103,21 @@ void BasicBlock::eraseFromParent() {
getParent()->getBasicBlockList().erase(this);
}
/// moveBefore - Unlink this instruction from its current function and
/// insert it into the function that MovePos lives in, right before
/// MovePos.
/// moveBefore - Unlink this basic block from its current function and
/// insert it into the function that MovePos lives in, right before MovePos.
void BasicBlock::moveBefore(BasicBlock *MovePos) {
MovePos->getParent()->getBasicBlockList().splice(MovePos,
getParent()->getBasicBlockList(), this);
}
/// moveAfter - Unlink this basic block from its current function and
/// insert it into the function that MovePos lives in, right after MovePos.
void BasicBlock::moveAfter(BasicBlock *MovePos) {
Function::iterator I = MovePos;
MovePos->getParent()->getBasicBlockList().splice(++I,
getParent()->getBasicBlockList(), this);
}
TerminatorInst *BasicBlock::getTerminator() {
if (InstList.empty()) return 0;