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Add some constantness to GetSuccessorNumber().

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llvm-svn: 253733
This commit is contained in:
Rong Xu 2015-11-20 23:02:06 +00:00
parent 5946adf23c
commit c3cbbad5f2
2 changed files with 4 additions and 3 deletions
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2
include/llvm/Analysis/CFG.h
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@ -40,7 +40,7 @@ void FindFunctionBackedges(
/// Search for the specified successor of basic block BB and return its position
/// in the terminator instruction's list of successors. It is an error to call
/// this with a block that is not a successor.
unsigned GetSuccessorNumber(BasicBlock *BB, BasicBlock *Succ);
unsigned GetSuccessorNumber(const BasicBlock *BB, const BasicBlock *Succ);
/// Return true if the specified edge is a critical edge. Critical edges are
/// edges from a block with multiple successors to a block with multiple

5
lib/Analysis/CFG.cpp
View File

@ -69,8 +69,9 @@ void llvm::FindFunctionBackedges(const Function &F,
/// and return its position in the terminator instruction's list of
/// successors. It is an error to call this with a block that is not a
/// successor.
unsigned llvm::GetSuccessorNumber(BasicBlock *BB, BasicBlock *Succ) {
TerminatorInst *Term = BB->getTerminator();
unsigned llvm::GetSuccessorNumber(const BasicBlock *BB,
const BasicBlock *Succ) {
const TerminatorInst *Term = BB->getTerminator();
#ifndef NDEBUG
unsigned e = Term->getNumSuccessors();
#endif