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diff --git a/llvm/tools/llvm-diff/lib/DiffConsumer.h b/llvm/tools/llvm-diff/lib/DiffConsumer.h
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-//===-- DiffConsumer.h - Difference Consumer --------------------*- 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 header defines the interface to the LLVM difference Consumer
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_TOOLS_LLVM_DIFF_DIFFCONSUMER_H
-#define LLVM_TOOLS_LLVM_DIFF_DIFFCONSUMER_H
-
-#include "DiffLog.h"
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/IR/Value.h"
-#include "llvm/Support/Casting.h"
-#include "llvm/Support/raw_ostream.h"
-
-namespace llvm {
-class StringRef;
- class Module;
- class Value;
- class Function;
-
- /// The interface for consumers of difference data.
- class Consumer {
- virtual void anchor();
- public:
- /// Record that a local context has been entered. Left and
- /// Right are IR "containers" of some sort which are being
- /// considered for structural equivalence: global variables,
- /// functions, blocks, instructions, etc.
- virtual void enterContext(const Value *Left, const Value *Right) = 0;
-
- /// Record that a local context has been exited.
- virtual void exitContext() = 0;
-
- /// Record a difference within the current context.
- virtual void log(StringRef Text) = 0;
-
- /// Record a formatted difference within the current context.
- virtual void logf(const LogBuilder &Log) = 0;
-
- /// Record a line-by-line instruction diff.
- virtual void logd(const DiffLogBuilder &Log) = 0;
-
- protected:
- virtual ~Consumer() {}
- };
-
- class DiffConsumer : public Consumer {
- private:
- struct DiffContext {
- DiffContext(const Value *L, const Value *R)
- : L(L), R(R), Differences(false), IsFunction(isa<Function>(L)) {}
- const Value *L;
- const Value *R;
- bool Differences;
- bool IsFunction;
- DenseMap<const Value *, unsigned> LNumbering;
- DenseMap<const Value *, unsigned> RNumbering;
- };
-
- raw_ostream &out;
- SmallVector<DiffContext, 5> contexts;
- bool Differences;
- unsigned Indent;
-
- void printValue(const Value *V, bool isL);
- void header();
- void indent();
-
- public:
- DiffConsumer()
- : out(errs()), Differences(false), Indent(0) {}
-
- bool hadDifferences() const;
- void enterContext(const Value *L, const Value *R) override;
- void exitContext() override;
- void log(StringRef text) override;
- void logf(const LogBuilder &Log) override;
- void logd(const DiffLogBuilder &Log) override;
- };
-}
-
-#endif