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Rename loop preheaders pass to loop simplify

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9061 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-10-12 21:52:28 +00:00
parent d59128ad36
commit 98bf436e2e
5 changed files with 13 additions and 11 deletions
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12
include/llvm/Transforms/Scalar.h
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@ -232,14 +232,14 @@ void SplitCriticalEdge(TerminatorInst *TI, unsigned SuccNum, Pass *P = 0);
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// //
// LoopPreheaders pass - Insert Pre-header blocks into the CFG for every // LoopSimplify pass - Insert Pre-header blocks into the CFG for every function
// function in the module. This pass updates dominator information, loop // in the module. This pass updates dominator information, loop information,
// information, and does not add critical edges to the CFG. // and does not add critical edges to the CFG.
// //
// AU.addRequiredID(LoopPreheadersID); // AU.addRequiredID(LoopSimplifyID);
// //
Pass *createLoopPreheaderInsertionPass(); Pass *createLoopSimplifyPass();
extern const PassInfo *LoopPreheadersID; extern const PassInfo *LoopSimplifyID;
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// //

2
lib/Transforms/Scalar/IndVarSimplify.cpp
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@ -199,7 +199,7 @@ namespace {
virtual void getAnalysisUsage(AnalysisUsage &AU) const { virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<LoopInfo>(); AU.addRequired<LoopInfo>();
AU.addRequiredID(LoopPreheadersID); AU.addRequiredID(LoopSimplifyID);
AU.setPreservesCFG(); AU.setPreservesCFG();
} }
}; };

2
lib/Transforms/Scalar/LICM.cpp
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@ -53,7 +53,7 @@ namespace {
/// ///
virtual void getAnalysisUsage(AnalysisUsage &AU) const { virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesCFG(); AU.setPreservesCFG();
AU.addRequiredID(LoopPreheadersID); AU.addRequiredID(LoopSimplifyID);
AU.addRequired<LoopInfo>(); AU.addRequired<LoopInfo>();
AU.addRequired<DominatorTree>(); AU.addRequired<DominatorTree>();
AU.addRequired<DominanceFrontier>(); // For scalar promotion (mem2reg) AU.addRequired<DominanceFrontier>(); // For scalar promotion (mem2reg)

4
lib/Transforms/Utils/BreakCriticalEdges.cpp
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@ -27,7 +27,9 @@ namespace {
AU.addPreserved<ImmediateDominators>(); AU.addPreserved<ImmediateDominators>();
AU.addPreserved<DominatorTree>(); AU.addPreserved<DominatorTree>();
AU.addPreserved<DominanceFrontier>(); AU.addPreserved<DominanceFrontier>();
AU.addPreservedID(LoopPreheadersID); // No preheaders deleted.
// No loop canonicalization guarantees are broken by this pass.
AU.addPreservedID(LoopSimplifyID);
} }
}; };

4
lib/Transforms/Utils/LoopSimplify.cpp
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@ -66,8 +66,8 @@ namespace {
} }
// Publically exposed interface to pass... // Publically exposed interface to pass...
const PassInfo *LoopPreheadersID = X.getPassInfo(); const PassInfo *LoopSimplifyID = X.getPassInfo();
Pass *createLoopPreheaderInsertionPass() { return new LoopSimplify(); } Pass *createLoopSimplifyPass() { return new LoopSimplify(); }
/// runOnFunction - Run down all loops in the CFG (recursively, but we could do /// runOnFunction - Run down all loops in the CFG (recursively, but we could do