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Set up IRBuilder for use during simplification.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131545 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2011-05-18 18:01:27 +00:00
parent 1eca76a611
commit 3e410c6607
1 changed files with 3 additions and 0 deletions
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3
lib/Transforms/Utils/SimplifyCFG.cpp
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@ -32,6 +32,7 @@
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ConstantRange.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/IRBuilder.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <set>
@ -2638,6 +2639,8 @@ bool SimplifyCFGOpt::run(BasicBlock *BB) {
if (MergeBlockIntoPredecessor(BB))
return true;
IRBuilder<> Builder(BB);
// If there is a trivial two-entry PHI node in this basic block, and we can
// eliminate it, do so now.
if (PHINode *PN = dyn_cast<PHINode>(BB->begin()))