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📄 AMDGPUEmitPrintf.h(864 B)
📄 ASanStackFrameLayout.h(3.51 KB)
📄 AddDiscriminators.h(1.04 KB)
📄 AssumeBundleBuilder.h(2.29 KB)
📄 BasicBlockUtils.h(20.81 KB)
📄 BreakCriticalEdges.h(1.16 KB)
📄 BuildLibCalls.h(9.67 KB)
📄 BypassSlowDivision.h(2.55 KB)
📄 CallGraphUpdater.h(3.84 KB)
📄 CallPromotionUtils.h(3.41 KB)
📄 CanonicalizeAliases.h(998 B)
📄 CanonicalizeFreezeInLoops.h(1.15 KB)
📄 Cloning.h(12.34 KB)
📄 CodeExtractor.h(9.58 KB)
📄 CodeMoverUtils.h(2.85 KB)
📄 CtorUtils.h(1021 B)
📄 Debugify.h(3.36 KB)
📄 EntryExitInstrumenter.h(1.16 KB)
📄 EscapeEnumerator.h(1.56 KB)
📄 Evaluator.h(4.69 KB)
📄 FunctionComparator.h(17.12 KB)
📄 FunctionImportUtils.h(5.73 KB)
📄 GlobalStatus.h(2.97 KB)
📄 GuardUtils.h(1.92 KB)
📄 ImportedFunctionsInliningStatistics.h(4.35 KB)
📄 InjectTLIMappings.h(1.27 KB)
📄 IntegerDivision.h(2.88 KB)
📄 LCSSA.h(1.56 KB)
📄 LibCallsShrinkWrap.h(908 B)
📄 Local.h(24.77 KB)
📄 LoopRotationUtils.h(1.54 KB)
📄 LoopSimplify.h(2.85 KB)
📄 LoopUtils.h(21.25 KB)
📄 LoopVersioning.h(5.87 KB)
📄 LowerInvoke.h(1.08 KB)
📄 LowerMemIntrinsics.h(2.14 KB)
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📄 ModuleUtils.h(5.04 KB)
📄 NameAnonGlobals.h(1.03 KB)
📄 PredicateInfo.h(7.76 KB)
📄 PromoteMemToReg.h(1.57 KB)
📄 SSAUpdater.h(6.12 KB)
📄 SSAUpdaterBulk.h(3.18 KB)
📄 SSAUpdaterImpl.h(15.75 KB)
📄 SanitizerStats.h(1.53 KB)
📄 ScalarEvolutionExpander.h(17.87 KB)
📄 SimplifyIndVar.h(2.12 KB)
📄 SimplifyLibCalls.h(10.85 KB)
📄 SizeOpts.h(4.84 KB)
📄 SplitModule.h(1.53 KB)
📄 SymbolRewriter.h(5.02 KB)
📄 UnifyFunctionExitNodes.h(1.83 KB)
📄 UniqueInternalLinkageNames.h(1.07 KB)
📄 UnrollLoop.h(6.05 KB)
📄 VNCoercion.h(4.99 KB)
📄 ValueMapper.h(11.67 KB)

Editing: LCSSA.h

//===- LCSSA.h - Loop-closed SSA transform Pass -----------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This pass transforms loops by placing phi nodes at the end of the loops for
// all values that are live across the loop boundary.  For example, it turns
// the left into the right code:
//
// for (...)                for (...)
//   if (c)                   if (c)
//     X1 = ...                 X1 = ...
//   else                     else
//     X2 = ...                 X2 = ...
//   X3 = phi(X1, X2)         X3 = phi(X1, X2)
// ... = X3 + 4             X4 = phi(X3)
//                          ... = X4 + 4
//
// This is still valid LLVM; the extra phi nodes are purely redundant, and will
// be trivially eliminated by InstCombine.  The major benefit of this
// transformation is that it makes many other loop optimizations, such as
// LoopUnswitching, simpler.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_TRANSFORMS_UTILS_LCSSA_H
#define LLVM_TRANSFORMS_UTILS_LCSSA_H

#include "llvm/IR/PassManager.h"

namespace llvm {

/// Converts loops into loop-closed SSA form.
class LCSSAPass : public PassInfoMixin<LCSSAPass> {
public:
  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
};
} // end namespace llvm

#endif // LLVM_TRANSFORMS_UTILS_LCSSA_H

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