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-rw-r--r--gnu/llvm/lib/Bitcode/Reader/ValueList.h86
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diff --git a/gnu/llvm/lib/Bitcode/Reader/ValueList.h b/gnu/llvm/lib/Bitcode/Reader/ValueList.h
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--- a/gnu/llvm/lib/Bitcode/Reader/ValueList.h
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-//===-- Bitcode/Reader/ValueList.h - Number values --------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This class gives values and types Unique ID's.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_BITCODE_READER_VALUELIST_H
-#define LLVM_LIB_BITCODE_READER_VALUELIST_H
-
-#include "llvm/IR/ValueHandle.h"
-#include <cassert>
-#include <utility>
-#include <vector>
-
-namespace llvm {
-
-class Constant;
-class LLVMContext;
-class Type;
-class Value;
-
-class BitcodeReaderValueList {
- std::vector<WeakTrackingVH> ValuePtrs;
-
- /// As we resolve forward-referenced constants, we add information about them
- /// to this vector. This allows us to resolve them in bulk instead of
- /// resolving each reference at a time. See the code in
- /// ResolveConstantForwardRefs for more information about this.
- ///
- /// The key of this vector is the placeholder constant, the value is the slot
- /// number that holds the resolved value.
- using ResolveConstantsTy = std::vector<std::pair<Constant *, unsigned>>;
- ResolveConstantsTy ResolveConstants;
- LLVMContext &Context;
-
-public:
- BitcodeReaderValueList(LLVMContext &C) : Context(C) {}
-
- ~BitcodeReaderValueList() {
- assert(ResolveConstants.empty() && "Constants not resolved?");
- }
-
- // vector compatibility methods
- unsigned size() const { return ValuePtrs.size(); }
- void resize(unsigned N) { ValuePtrs.resize(N); }
- void push_back(Value *V) { ValuePtrs.emplace_back(V); }
-
- void clear() {
- assert(ResolveConstants.empty() && "Constants not resolved?");
- ValuePtrs.clear();
- }
-
- Value *operator[](unsigned i) const {
- assert(i < ValuePtrs.size());
- return ValuePtrs[i];
- }
-
- Value *back() const { return ValuePtrs.back(); }
- void pop_back() { ValuePtrs.pop_back(); }
- bool empty() const { return ValuePtrs.empty(); }
-
- void shrinkTo(unsigned N) {
- assert(N <= size() && "Invalid shrinkTo request!");
- ValuePtrs.resize(N);
- }
-
- Constant *getConstantFwdRef(unsigned Idx, Type *Ty);
- Value *getValueFwdRef(unsigned Idx, Type *Ty);
-
- void assignValue(Value *V, unsigned Idx);
-
- /// Once all constants are read, this method bulk resolves any forward
- /// references.
- void resolveConstantForwardRefs();
-};
-
-} // end namespace llvm
-
-#endif // LLVM_LIB_BITCODE_READER_VALUELIST_H