mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-18 19:20:05 +00:00
1ed847f438
* Fix endianness of string literals To get correct and consistent encoding and decoding of string literals on big-endian platforms, use spvtools::utils::MakeString and MakeVector (or wrapper functions) consistently for handling string literals. - add variant of MakeVector that encodes a string literal into an existing vector of words - add variants of MakeString - add a wrapper spvDecodeLiteralStringOperand in source/ - fix wrapper Operand::AsString to use MakeString (source/opt) - remove Operand::AsCString as broken and unused - add a variant of GetOperandAs for string literals (source/val) ... and apply those wrappers throughout the code. Fixes #149 * Extend round trip test for StringLiterals to flip word order In the encoding/decoding roundtrip tests for string literals, include a case that flips byte order in words after encoding and then checks for successful decoding. That is, on a little-endian host flip to big-endian byte order and then decode, and vice versa. * BinaryParseTest.InstructionWithStringOperand: also flip byte order Test binary parsing of string operands both with the host's and with the reversed byte order.
120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
// Copyright (c) 2017 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "source/opt/feature_manager.h"
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#include <queue>
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#include <stack>
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#include <string>
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#include "source/enum_string_mapping.h"
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namespace spvtools {
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namespace opt {
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void FeatureManager::Analyze(Module* module) {
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AddExtensions(module);
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AddCapabilities(module);
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AddExtInstImportIds(module);
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}
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void FeatureManager::AddExtensions(Module* module) {
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for (auto ext : module->extensions()) {
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AddExtension(&ext);
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}
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}
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void FeatureManager::AddExtension(Instruction* ext) {
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assert(ext->opcode() == SpvOpExtension &&
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"Expecting an extension instruction.");
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const std::string name = ext->GetInOperand(0u).AsString();
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Extension extension;
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if (GetExtensionFromString(name.c_str(), &extension)) {
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extensions_.Add(extension);
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}
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}
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void FeatureManager::RemoveExtension(Extension ext) {
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if (!extensions_.Contains(ext)) return;
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extensions_.Remove(ext);
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}
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void FeatureManager::AddCapability(SpvCapability cap) {
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if (capabilities_.Contains(cap)) return;
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capabilities_.Add(cap);
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spv_operand_desc desc = {};
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if (SPV_SUCCESS ==
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grammar_.lookupOperand(SPV_OPERAND_TYPE_CAPABILITY, cap, &desc)) {
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CapabilitySet(desc->numCapabilities, desc->capabilities)
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.ForEach([this](SpvCapability c) { AddCapability(c); });
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}
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}
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void FeatureManager::RemoveCapability(SpvCapability cap) {
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if (!capabilities_.Contains(cap)) return;
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capabilities_.Remove(cap);
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}
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void FeatureManager::AddCapabilities(Module* module) {
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for (Instruction& inst : module->capabilities()) {
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AddCapability(static_cast<SpvCapability>(inst.GetSingleWordInOperand(0)));
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}
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}
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void FeatureManager::AddExtInstImportIds(Module* module) {
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extinst_importid_GLSLstd450_ = module->GetExtInstImportId("GLSL.std.450");
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extinst_importid_OpenCL100DebugInfo_ =
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module->GetExtInstImportId("OpenCL.DebugInfo.100");
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extinst_importid_Shader100DebugInfo_ =
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module->GetExtInstImportId("NonSemantic.Shader.DebugInfo.100");
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}
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bool operator==(const FeatureManager& a, const FeatureManager& b) {
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// We check that the addresses of the grammars are the same because they
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// are large objects, and this is faster. It can be changed if needed as a
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// later time.
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if (&a.grammar_ != &b.grammar_) {
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return false;
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}
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if (a.capabilities_ != b.capabilities_) {
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return false;
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}
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if (a.extensions_ != b.extensions_) {
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return false;
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}
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if (a.extinst_importid_GLSLstd450_ != b.extinst_importid_GLSLstd450_) {
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return false;
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}
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if (a.extinst_importid_OpenCL100DebugInfo_ !=
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b.extinst_importid_OpenCL100DebugInfo_) {
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return false;
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}
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if (a.extinst_importid_Shader100DebugInfo_ !=
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b.extinst_importid_Shader100DebugInfo_) {
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return false;
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}
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return true;
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}
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} // namespace opt
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} // namespace spvtools
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