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[PM] Replace another Pass argument with specific analyses that are

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optionally updated by MergeBlockIntoPredecessors.

No functionality changed, just refactoring to clear the way for the new
pass manager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226392 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
2015-01-18 02:11:23 +00:00
parent d39e52bef7
commit 0389537c08
4 changed files with 27 additions and 28 deletions
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6
include/llvm/Transforms/Utils/BasicBlockUtils.h
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@ -25,6 +25,7 @@ namespace llvm {
class AliasAnalysis;
class MemoryDependenceAnalysis;
class DominatorTree;
class LoopInfo;
class Instruction;
class MDNode;
class Pass;
@ -52,7 +53,10 @@ bool DeleteDeadPHIs(BasicBlock *BB, const TargetLibraryInfo *TLI = nullptr);
/// MergeBlockIntoPredecessor - Attempts to merge a block into its predecessor,
/// if possible. The return value indicates success or failure.
bool MergeBlockIntoPredecessor(BasicBlock *BB, Pass *P = nullptr);
bool MergeBlockIntoPredecessor(BasicBlock *BB, DominatorTree *DT = nullptr,
LoopInfo *LI = nullptr,
AliasAnalysis *AA = nullptr,
MemoryDependenceAnalysis *MemDep = nullptr);
// ReplaceInstWithValue - Replace all uses of an instruction (specified by BI)
// with a value, then remove and delete the original instruction.