summaryrefslogtreecommitdiff
path: root/contrib/llvm/lib/Bitcode/Reader/ValueList.h
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/llvm/lib/Bitcode/Reader/ValueList.h')
-rw-r--r--contrib/llvm/lib/Bitcode/Reader/ValueList.h110
1 files changed, 0 insertions, 110 deletions
diff --git a/contrib/llvm/lib/Bitcode/Reader/ValueList.h b/contrib/llvm/lib/Bitcode/Reader/ValueList.h
deleted file mode 100644
index 49900498c294..000000000000
--- a/contrib/llvm/lib/Bitcode/Reader/ValueList.h
+++ /dev/null
@@ -1,110 +0,0 @@
-//===-- Bitcode/Reader/ValueList.h - Number values --------------*- 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 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;
-
- /// Struct containing fully-specified copies of the type of each
- /// value. When pointers are opaque, this will be contain non-opaque
- /// variants so that restructuring instructions can determine their
- /// type correctly even if being loaded from old bitcode where some
- /// types are implicit.
- std::vector<Type *> FullTypes;
-
- /// 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;
-
- /// Maximum number of valid references. Forward references exceeding the
- /// maximum must be invalid.
- unsigned RefsUpperBound;
-
-public:
- BitcodeReaderValueList(LLVMContext &C, size_t RefsUpperBound)
- : Context(C),
- RefsUpperBound(std::min((size_t)std::numeric_limits<unsigned>::max(),
- RefsUpperBound)) {}
-
- ~BitcodeReaderValueList() {
- assert(ResolveConstants.empty() && "Constants not resolved?");
- }
-
- // vector compatibility methods
- unsigned size() const { return ValuePtrs.size(); }
- void resize(unsigned N) {
- ValuePtrs.resize(N);
- FullTypes.resize(N);
- }
- void push_back(Value *V, Type *Ty) {
- ValuePtrs.emplace_back(V);
- FullTypes.emplace_back(Ty);
- }
-
- void clear() {
- assert(ResolveConstants.empty() && "Constants not resolved?");
- ValuePtrs.clear();
- FullTypes.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();
- FullTypes.pop_back();
- }
- bool empty() const { return ValuePtrs.empty(); }
-
- void shrinkTo(unsigned N) {
- assert(N <= size() && "Invalid shrinkTo request!");
- ValuePtrs.resize(N);
- FullTypes.resize(N);
- }
-
- Constant *getConstantFwdRef(unsigned Idx, Type *Ty);
- Value *getValueFwdRef(unsigned Idx, Type *Ty, Type **FullTy = nullptr);
-
- void assignValue(Value *V, unsigned Idx, Type *FullTy);
-
- /// Once all constants are read, this method bulk resolves any forward
- /// references.
- void resolveConstantForwardRefs();
-};
-
-} // end namespace llvm
-
-#endif // LLVM_LIB_BITCODE_READER_VALUELIST_H