mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
f7deab5277
When two symbols import the same thing, only one import should be emitted in the Wasm file. Fixes https://bugs.llvm.org/show_bug.cgi?id=50938 Reverted in: 16aac493e59519377071e900d119ba2e7e5b525d. Reviewed By: sbc100 Differential Revision: https://reviews.llvm.org/D105519
112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
//===- WasmTraits.h - DenseMap traits for the Wasm structures ---*- 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 file provides llvm::DenseMapInfo traits for the Wasm structures.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_BINARYFORMAT_WASMTRAITS_H
|
|
#define LLVM_BINARYFORMAT_WASMTRAITS_H
|
|
|
|
#include "llvm/ADT/Hashing.h"
|
|
#include "llvm/BinaryFormat/Wasm.h"
|
|
|
|
namespace llvm {
|
|
|
|
template <typename T> struct DenseMapInfo;
|
|
|
|
// Traits for using WasmSignature in a DenseMap.
|
|
template <> struct DenseMapInfo<wasm::WasmSignature> {
|
|
static wasm::WasmSignature getEmptyKey() {
|
|
wasm::WasmSignature Sig;
|
|
Sig.State = wasm::WasmSignature::Empty;
|
|
return Sig;
|
|
}
|
|
static wasm::WasmSignature getTombstoneKey() {
|
|
wasm::WasmSignature Sig;
|
|
Sig.State = wasm::WasmSignature::Tombstone;
|
|
return Sig;
|
|
}
|
|
static unsigned getHashValue(const wasm::WasmSignature &Sig) {
|
|
uintptr_t H = hash_value(Sig.State);
|
|
for (auto Ret : Sig.Returns)
|
|
H = hash_combine(H, Ret);
|
|
for (auto Param : Sig.Params)
|
|
H = hash_combine(H, Param);
|
|
return H;
|
|
}
|
|
static bool isEqual(const wasm::WasmSignature &LHS,
|
|
const wasm::WasmSignature &RHS) {
|
|
return LHS == RHS;
|
|
}
|
|
};
|
|
|
|
// Traits for using WasmGlobalType in a DenseMap
|
|
template <> struct DenseMapInfo<wasm::WasmGlobalType> {
|
|
static wasm::WasmGlobalType getEmptyKey() {
|
|
return wasm::WasmGlobalType{1, true};
|
|
}
|
|
static wasm::WasmGlobalType getTombstoneKey() {
|
|
return wasm::WasmGlobalType{2, true};
|
|
}
|
|
static unsigned getHashValue(const wasm::WasmGlobalType &GlobalType) {
|
|
return hash_combine(GlobalType.Type, GlobalType.Mutable);
|
|
}
|
|
static bool isEqual(const wasm::WasmGlobalType &LHS,
|
|
const wasm::WasmGlobalType &RHS) {
|
|
return LHS == RHS;
|
|
}
|
|
};
|
|
|
|
// Traits for using WasmLimits in a DenseMap
|
|
template <> struct DenseMapInfo<wasm::WasmLimits> {
|
|
static wasm::WasmLimits getEmptyKey() {
|
|
return wasm::WasmLimits{0xff, 0xff, 0xff};
|
|
}
|
|
static wasm::WasmLimits getTombstoneKey() {
|
|
return wasm::WasmLimits{0xee, 0xee, 0xee};
|
|
}
|
|
static unsigned getHashValue(const wasm::WasmLimits &Limits) {
|
|
unsigned Hash = hash_value(Limits.Flags);
|
|
Hash = hash_combine(Hash, Limits.Minimum);
|
|
if (Limits.Flags & llvm::wasm::WASM_LIMITS_FLAG_HAS_MAX) {
|
|
Hash = hash_combine(Hash, Limits.Maximum);
|
|
}
|
|
return Hash;
|
|
}
|
|
static bool isEqual(const wasm::WasmLimits &LHS,
|
|
const wasm::WasmLimits &RHS) {
|
|
return LHS == RHS;
|
|
}
|
|
};
|
|
|
|
// Traits for using WasmTableType in a DenseMap
|
|
template <> struct DenseMapInfo<wasm::WasmTableType> {
|
|
static wasm::WasmTableType getEmptyKey() {
|
|
return wasm::WasmTableType{0,
|
|
DenseMapInfo<wasm::WasmLimits>::getEmptyKey()};
|
|
}
|
|
static wasm::WasmTableType getTombstoneKey() {
|
|
return wasm::WasmTableType{
|
|
1, DenseMapInfo<wasm::WasmLimits>::getTombstoneKey()};
|
|
}
|
|
static unsigned getHashValue(const wasm::WasmTableType &TableType) {
|
|
return hash_combine(
|
|
TableType.ElemType,
|
|
DenseMapInfo<wasm::WasmLimits>::getHashValue(TableType.Limits));
|
|
}
|
|
static bool isEqual(const wasm::WasmTableType &LHS,
|
|
const wasm::WasmTableType &RHS) {
|
|
return LHS == RHS;
|
|
}
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_BINARYFORMAT_WASMTRAITS_H
|