mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-23 20:20:06 +00:00
b891845b53
* Fix the behavior when analyzing an individual instruction: * exisiting instruction: Clear the original records and re-analyze it as a new instruction. * new instruction with exisiting result id: Clear the original records of the exisiting result id. This means the records of the analyzed result-id-defining instruction will be overwritten by the record of the new instruction with the same result id. * new instruction with new result id or without result id: Just update the internal records to incorperate the new instruction. * Add tests for analyzing individual instruction w/o an exisiting module. * Refactor ClearInst() implementation * Remove ClearDef() function. * Fixed a bug in DefUseManager::ReplaceAllUsesWith() that OpName instruction may trigger the assertion incorrectly. * update the blurbs for EraseUseRecordsOfOperandIds()
1418 lines
42 KiB
C++
1418 lines
42 KiB
C++
// Copyright (c) 2016 Google Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and/or associated documentation files (the
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// "Materials"), to deal in the Materials without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Materials, and to
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// permit persons to whom the Materials are furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Materials.
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//
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// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
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// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
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// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
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// https://www.khronos.org/registry/
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//
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// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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#include <memory>
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#include <unordered_set>
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include "opt/def_use_manager.h"
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#include "opt/libspirv.hpp"
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#include "pass_utils.h"
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namespace {
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using ::testing::ElementsAre;
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using namespace spvtools;
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using spvtools::opt::analysis::DefUseManager;
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// Disassembles the given |inst| and returns the disassembly.
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std::string DisassembleInst(ir::Instruction* inst) {
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SpvTools tools(SPV_ENV_UNIVERSAL_1_1);
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std::vector<uint32_t> binary;
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// We need this to generate the necessary header in the binary.
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tools.Assemble("", &binary);
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inst->ToBinary(&binary, /* skip_nop = */ false);
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std::string text;
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// We'll need to check the underlying id numbers.
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// So turn off friendly names for ids.
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tools.Disassemble(binary, &text, SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
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while (!text.empty() && text.back() == '\n') text.pop_back();
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return text;
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}
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// A struct for holding expected id defs and uses.
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struct InstDefUse {
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using IdInstPair = std::pair<uint32_t, const char*>;
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using IdInstsPair = std::pair<uint32_t, std::vector<const char*>>;
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// Ids and their corresponding def instructions.
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std::vector<IdInstPair> defs;
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// Ids and their corresponding use instructions.
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std::vector<IdInstsPair> uses;
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};
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// Checks that the |actual_defs| and |actual_uses| are in accord with
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// |expected_defs_uses|.
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void CheckDef(const InstDefUse& expected_defs_uses,
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const DefUseManager::IdToDefMap& actual_defs) {
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// Check defs.
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ASSERT_EQ(expected_defs_uses.defs.size(), actual_defs.size());
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for (uint32_t i = 0; i < expected_defs_uses.defs.size(); ++i) {
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const auto id = expected_defs_uses.defs[i].first;
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const auto expected_def = expected_defs_uses.defs[i].second;
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ASSERT_EQ(1u, actual_defs.count(id)) << "expected to def id [" << id << "]";
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EXPECT_EQ(expected_def, DisassembleInst(actual_defs.at(id)));
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}
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}
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void CheckUse(const InstDefUse& expected_defs_uses,
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const DefUseManager::IdToUsesMap& actual_uses) {
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// Check uses.
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ASSERT_EQ(expected_defs_uses.uses.size(), actual_uses.size());
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for (uint32_t i = 0; i < expected_defs_uses.uses.size(); ++i) {
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const auto id = expected_defs_uses.uses[i].first;
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const auto& expected_uses = expected_defs_uses.uses[i].second;
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ASSERT_EQ(1u, actual_uses.count(id)) << "expected to use id [" << id << "]";
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const auto& uses = actual_uses.at(id);
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ASSERT_EQ(expected_uses.size(), uses.size())
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<< "id [" << id << "] # uses: expected: " << expected_uses.size()
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<< " actual: " << uses.size();
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auto it = uses.cbegin();
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for (const auto expected_use : expected_uses) {
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EXPECT_EQ(expected_use, DisassembleInst(it->inst))
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<< "id [" << id << "] use instruction mismatch";
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++it;
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}
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}
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}
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// The following test case mimics how LLVM handles induction variables.
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// But, yeah, it's not very readable. However, we only care about the id
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// defs and uses. So, no need to make sure this is valid OpPhi construct.
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const char kOpPhiTestFunction[] =
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" %2 = OpFunction %1 None %3 "
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" %4 = OpLabel "
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" OpBranch %5 "
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" %5 = OpLabel "
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" %7 = OpPhi %6 %8 %4 %9 %5 "
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"%11 = OpPhi %10 %12 %4 %13 %5 "
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" %9 = OpIAdd %6 %7 %14 "
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"%13 = OpFAdd %10 %11 %15 "
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"%17 = OpSLessThan %16 %7 %18 "
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" OpLoopMerge %19 %5 None "
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" OpBranchConditional %17 %5 %19 "
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"%19 = OpLabel "
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" OpReturn "
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" OpFunctionEnd";
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struct ParseDefUseCase {
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const char* text;
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InstDefUse du;
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};
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using ParseDefUseTest = ::testing::TestWithParam<ParseDefUseCase>;
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TEST_P(ParseDefUseTest, Case) {
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const auto& tc = GetParam();
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// Build module.
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const std::vector<const char*> text = {tc.text};
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std::unique_ptr<ir::Module> module =
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SpvTools(SPV_ENV_UNIVERSAL_1_1).BuildModule(JoinAllInsts(text));
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ASSERT_NE(nullptr, module);
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// Analyze def and use.
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opt::analysis::DefUseManager manager(module.get());
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CheckDef(tc.du, manager.id_to_defs());
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CheckUse(tc.du, manager.id_to_uses());
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}
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// clang-format off
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INSTANTIATE_TEST_CASE_P(
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TestCase, ParseDefUseTest,
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::testing::ValuesIn(std::vector<ParseDefUseCase>{
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{"", {{}, {}}}, // no instruction
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{"OpMemoryModel Logical GLSL450", {{}, {}}}, // no def and use
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{ // single def, no use
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"%1 = OpString \"wow\"",
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{
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{{1, "%1 = OpString \"wow\""}}, // defs
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{} // uses
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}
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},
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{ // multiple def, no use
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"%1 = OpString \"hello\" "
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"%2 = OpString \"world\" "
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"%3 = OpTypeVoid",
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{
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{ // defs
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{1, "%1 = OpString \"hello\""},
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{2, "%2 = OpString \"world\""},
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{3, "%3 = OpTypeVoid"},
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},
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{} // uses
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}
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},
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{ // single use, no def
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"OpTypeForwardPointer %1 Input",
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{
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{}, // defs
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{ // uses
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{1, {"OpTypeForwardPointer %1 Input"}},
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}
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}
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},
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{ // multiple use, no def
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"OpEntryPoint Fragment %1 \"main\" "
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"OpTypeForwardPointer %2 Input "
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"OpTypeForwardPointer %3 Output",
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{
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{}, // defs
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{ // uses
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{1, {"OpEntryPoint Fragment %1 \"main\""}},
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{2, {"OpTypeForwardPointer %2 Input"}},
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{3, {"OpTypeForwardPointer %3 Output"}},
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}
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}
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},
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{ // multiple def, multiple use
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"%1 = OpTypeBool "
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"%2 = OpTypeVector %1 3 "
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"%3 = OpTypeMatrix %2 3",
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{
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{ // defs
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{1, "%1 = OpTypeBool"},
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{2, "%2 = OpTypeVector %1 3"},
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{3, "%3 = OpTypeMatrix %2 3"},
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},
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{ // uses
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{1, {"%2 = OpTypeVector %1 3"}},
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{2, {"%3 = OpTypeMatrix %2 3"}},
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}
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}
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},
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{ // multiple use of the same id
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"%1 = OpTypeBool "
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"%2 = OpTypeVector %1 2 "
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"%3 = OpTypeVector %1 3 "
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"%4 = OpTypeVector %1 4",
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{
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{ // defs
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{1, "%1 = OpTypeBool"},
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{2, "%2 = OpTypeVector %1 2"},
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{3, "%3 = OpTypeVector %1 3"},
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{4, "%4 = OpTypeVector %1 4"},
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},
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{ // uses
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{1,
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{
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"%2 = OpTypeVector %1 2",
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"%3 = OpTypeVector %1 3",
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"%4 = OpTypeVector %1 4",
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}
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},
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}
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}
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},
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{ // labels
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"%2 = OpFunction %1 None %3 "
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"%4 = OpLabel "
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"OpBranchConditional %5 %6 %7 "
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"%6 = OpLabel "
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"OpBranch %7 "
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"%7 = OpLabel "
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"OpReturn "
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"OpFunctionEnd",
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{
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{ // defs
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{2, "%2 = OpFunction %1 None %3"},
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{4, "%4 = OpLabel"},
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{6, "%6 = OpLabel"},
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{7, "%7 = OpLabel"},
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},
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{ // uses
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{1, {"%2 = OpFunction %1 None %3"}},
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{3, {"%2 = OpFunction %1 None %3"}},
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{5, {"OpBranchConditional %5 %6 %7"}},
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{6, {"OpBranchConditional %5 %6 %7"}},
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{7,
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{
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"OpBranchConditional %5 %6 %7",
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"OpBranch %7",
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}
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},
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}
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}
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},
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{ // cross function
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"%1 = OpTypeBool "
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"%2 = OpFunction %1 None %3 "
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"%4 = OpLabel "
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"%5 = OpVariable %1 Function "
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"%6 = OpFunctionCall %1 %2 %5 "
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"OpReturnValue %6 "
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"OpFunctionEnd",
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{
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{ // defs
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{1, "%1 = OpTypeBool"},
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{2, "%2 = OpFunction %1 None %3"},
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{4, "%4 = OpLabel"},
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{5, "%5 = OpVariable %1 Function"},
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{6, "%6 = OpFunctionCall %1 %2 %5"},
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},
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{ // uses
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{1,
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{
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"%2 = OpFunction %1 None %3",
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"%5 = OpVariable %1 Function",
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"%6 = OpFunctionCall %1 %2 %5",
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}
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},
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{2, {"%6 = OpFunctionCall %1 %2 %5"}},
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{5, {"%6 = OpFunctionCall %1 %2 %5"}},
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{3, {"%2 = OpFunction %1 None %3"}},
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{6, {"OpReturnValue %6"}},
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}
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}
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},
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{ // selection merge and loop merge
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"%2 = OpFunction %1 None %3 "
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"%4 = OpLabel "
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"OpLoopMerge %5 %4 None "
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"OpBranch %6 "
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"%5 = OpLabel "
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"OpReturn "
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"%6 = OpLabel "
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"OpSelectionMerge %7 None "
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"OpBranchConditional %8 %9 %7 "
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"%7 = OpLabel "
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"OpReturn "
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"%9 = OpLabel "
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"OpReturn "
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"OpFunctionEnd",
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{
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{ // defs
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{2, "%2 = OpFunction %1 None %3"},
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{4, "%4 = OpLabel"},
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{5, "%5 = OpLabel"},
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{6, "%6 = OpLabel"},
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{7, "%7 = OpLabel"},
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{9, "%9 = OpLabel"},
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},
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{ // uses
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{1, {"%2 = OpFunction %1 None %3"}},
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{3, {"%2 = OpFunction %1 None %3"}},
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{4, {"OpLoopMerge %5 %4 None"}},
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{5, {"OpLoopMerge %5 %4 None"}},
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{6, {"OpBranch %6"}},
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{7,
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{
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"OpSelectionMerge %7 None",
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"OpBranchConditional %8 %9 %7",
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}
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},
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{8, {"OpBranchConditional %8 %9 %7"}},
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{9, {"OpBranchConditional %8 %9 %7"}},
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}
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}
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},
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{ // Forward reference
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"OpDecorate %1 Block "
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"OpTypeForwardPointer %2 Input "
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"%3 = OpTypeInt 32 0 "
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"%1 = OpTypeStruct %3 "
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"%2 = OpTypePointer Input %3",
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{
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{ // defs
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{1, "%1 = OpTypeStruct %3"},
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{2, "%2 = OpTypePointer Input %3"},
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{3, "%3 = OpTypeInt 32 0"},
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},
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{ // uses
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{1, {"OpDecorate %1 Block"}},
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{2, {"OpTypeForwardPointer %2 Input"}},
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{3,
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{
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"%1 = OpTypeStruct %3",
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"%2 = OpTypePointer Input %3",
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}
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}
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},
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},
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},
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{ // OpPhi
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kOpPhiTestFunction,
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{
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{ // defs
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{2, "%2 = OpFunction %1 None %3"},
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{4, "%4 = OpLabel"},
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{5, "%5 = OpLabel"},
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{7, "%7 = OpPhi %6 %8 %4 %9 %5"},
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{9, "%9 = OpIAdd %6 %7 %14"},
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{11, "%11 = OpPhi %10 %12 %4 %13 %5"},
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{13, "%13 = OpFAdd %10 %11 %15"},
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{17, "%17 = OpSLessThan %16 %7 %18"},
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{19, "%19 = OpLabel"},
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},
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{ // uses
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{1, {"%2 = OpFunction %1 None %3"}},
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{3, {"%2 = OpFunction %1 None %3"}},
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{4,
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{
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"%7 = OpPhi %6 %8 %4 %9 %5",
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"%11 = OpPhi %10 %12 %4 %13 %5",
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}
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},
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{5,
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{
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"OpBranch %5",
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"%7 = OpPhi %6 %8 %4 %9 %5",
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"%11 = OpPhi %10 %12 %4 %13 %5",
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"OpLoopMerge %19 %5 None",
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"OpBranchConditional %17 %5 %19",
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}
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},
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{6,
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{
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"%7 = OpPhi %6 %8 %4 %9 %5",
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"%9 = OpIAdd %6 %7 %14",
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}
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},
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{7,
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{
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"%9 = OpIAdd %6 %7 %14",
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"%17 = OpSLessThan %16 %7 %18",
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}
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},
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{8, {"%7 = OpPhi %6 %8 %4 %9 %5"}},
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{9, {"%7 = OpPhi %6 %8 %4 %9 %5"}},
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{10,
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{
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"%11 = OpPhi %10 %12 %4 %13 %5",
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"%13 = OpFAdd %10 %11 %15",
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}
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},
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{11, {"%13 = OpFAdd %10 %11 %15"}},
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{12, {"%11 = OpPhi %10 %12 %4 %13 %5"}},
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{13, {"%11 = OpPhi %10 %12 %4 %13 %5"}},
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{14, {"%9 = OpIAdd %6 %7 %14"}},
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{15, {"%13 = OpFAdd %10 %11 %15"}},
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{16, {"%17 = OpSLessThan %16 %7 %18"}},
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{17, {"OpBranchConditional %17 %5 %19"}},
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{18, {"%17 = OpSLessThan %16 %7 %18"}},
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{19,
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{
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"OpLoopMerge %19 %5 None",
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"OpBranchConditional %17 %5 %19",
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}
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},
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},
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},
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},
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{ // OpPhi defining and referencing the same id.
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"%1 = OpTypeBool "
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"%2 = OpConstantTrue %1 "
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"%4 = OpFunction %3 None %5 "
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"%6 = OpLabel "
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" OpBranch %7 "
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"%7 = OpLabel "
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"%8 = OpPhi %1 %8 %7 %2 %6 " // both defines and uses %8
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" OpBranch %7 "
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" OpFunctionEnd",
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{
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{ // defs
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{1, "%1 = OpTypeBool"},
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{2, "%2 = OpConstantTrue %1"},
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{4, "%4 = OpFunction %3 None %5"},
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{6, "%6 = OpLabel"},
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{7, "%7 = OpLabel"},
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{8, "%8 = OpPhi %1 %8 %7 %2 %6"},
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},
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{ // uses
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{1,
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{
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"%2 = OpConstantTrue %1",
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"%8 = OpPhi %1 %8 %7 %2 %6",
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}
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},
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{2, {"%8 = OpPhi %1 %8 %7 %2 %6"}},
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{3, {"%4 = OpFunction %3 None %5"}},
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{5, {"%4 = OpFunction %3 None %5"}},
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{6, {"%8 = OpPhi %1 %8 %7 %2 %6"}},
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{7,
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{
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"OpBranch %7",
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"%8 = OpPhi %1 %8 %7 %2 %6",
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"OpBranch %7",
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}
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},
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{8, {"%8 = OpPhi %1 %8 %7 %2 %6"}},
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},
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},
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},
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})
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);
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// clang-format on
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|
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struct ReplaceUseCase {
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const char* before;
|
|
std::vector<std::pair<uint32_t, uint32_t>> candidates;
|
|
const char* after;
|
|
InstDefUse du;
|
|
};
|
|
|
|
using ReplaceUseTest = ::testing::TestWithParam<ReplaceUseCase>;
|
|
|
|
// Disassembles the given |module| and returns the disassembly.
|
|
std::string DisassembleModule(ir::Module* module) {
|
|
SpvTools tools(SPV_ENV_UNIVERSAL_1_1);
|
|
|
|
std::vector<uint32_t> binary;
|
|
module->ToBinary(&binary, /* skip_nop = */ false);
|
|
|
|
std::string text;
|
|
// We'll need to check the underlying id numbers.
|
|
// So turn off friendly names for ids.
|
|
tools.Disassemble(binary, &text, SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
|
|
while (!text.empty() && text.back() == '\n') text.pop_back();
|
|
return text;
|
|
}
|
|
|
|
TEST_P(ReplaceUseTest, Case) {
|
|
const auto& tc = GetParam();
|
|
|
|
// Build module.
|
|
const std::vector<const char*> text = {tc.before};
|
|
std::unique_ptr<ir::Module> module =
|
|
SpvTools(SPV_ENV_UNIVERSAL_1_1).BuildModule(JoinAllInsts(text));
|
|
ASSERT_NE(nullptr, module);
|
|
|
|
// Analyze def and use.
|
|
opt::analysis::DefUseManager manager(module.get());
|
|
|
|
// Do the substitution.
|
|
for (const auto& candiate : tc.candidates) {
|
|
manager.ReplaceAllUsesWith(candiate.first, candiate.second);
|
|
}
|
|
|
|
EXPECT_EQ(tc.after, DisassembleModule(module.get()));
|
|
CheckDef(tc.du, manager.id_to_defs());
|
|
CheckUse(tc.du, manager.id_to_uses());
|
|
}
|
|
|
|
// clang-format off
|
|
INSTANTIATE_TEST_CASE_P(
|
|
TestCase, ReplaceUseTest,
|
|
::testing::ValuesIn(std::vector<ReplaceUseCase>{
|
|
{ // no use, no replace request
|
|
"", {}, "", {},
|
|
},
|
|
{ // no use, some replace requests
|
|
"OpMemoryModel Logical GLSL450",
|
|
{{1, 2}, {3, 4}, {7, 8}, {7, 9}, {7, 10}, {2, 10}, {3, 10}},
|
|
"OpMemoryModel Logical GLSL450",
|
|
{},
|
|
},
|
|
{ // replace one use
|
|
"%1 = OpTypeBool "
|
|
"%2 = OpTypeVector %1 3",
|
|
{{1, 3}},
|
|
"%1 = OpTypeBool\n"
|
|
"%2 = OpTypeVector %3 3",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeBool"},
|
|
{2, "%2 = OpTypeVector %3 3"},
|
|
},
|
|
{ // uses
|
|
{3, {"%2 = OpTypeVector %3 3"}},
|
|
},
|
|
},
|
|
},
|
|
{ // replace and then replace back
|
|
"%1 = OpTypeBool "
|
|
"%2 = OpTypeVector %1 3",
|
|
{{1, 3}, {3, 1}},
|
|
"%1 = OpTypeBool\n"
|
|
"%2 = OpTypeVector %1 3",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeBool"},
|
|
{2, "%2 = OpTypeVector %1 3"},
|
|
},
|
|
{ // uses
|
|
{1, {"%2 = OpTypeVector %1 3"}},
|
|
},
|
|
},
|
|
},
|
|
{ // replace with the same id
|
|
"%1 = OpTypeBool "
|
|
"%2 = OpTypeVector %1 3",
|
|
{{1, 1}, {2, 2}, {3, 3}},
|
|
"%1 = OpTypeBool\n"
|
|
"%2 = OpTypeVector %1 3",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeBool"},
|
|
{2, "%2 = OpTypeVector %1 3"},
|
|
},
|
|
{ // uses
|
|
{1, {"%2 = OpTypeVector %1 3"}},
|
|
},
|
|
},
|
|
},
|
|
{ // replace in sequence
|
|
"%1 = OpTypeBool "
|
|
"%2 = OpTypeVector %1 3",
|
|
{{1, 3}, {3, 4}, {4, 5}, {5, 100}},
|
|
"%1 = OpTypeBool\n"
|
|
"%2 = OpTypeVector %100 3",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeBool"},
|
|
{2, "%2 = OpTypeVector %100 3"},
|
|
},
|
|
{ // uses
|
|
{100, {"%2 = OpTypeVector %100 3"}},
|
|
},
|
|
},
|
|
},
|
|
{ // replace multiple uses
|
|
"%1 = OpTypeBool "
|
|
"%2 = OpTypeVector %1 2 "
|
|
"%3 = OpTypeVector %1 3 "
|
|
"%4 = OpTypeVector %1 4 "
|
|
"%5 = OpTypeMatrix %2 2 "
|
|
"%6 = OpTypeMatrix %3 3 "
|
|
"%7 = OpTypeMatrix %4 4",
|
|
{{1, 10}, {2, 20}, {4, 40}},
|
|
"%1 = OpTypeBool\n"
|
|
"%2 = OpTypeVector %10 2\n"
|
|
"%3 = OpTypeVector %10 3\n"
|
|
"%4 = OpTypeVector %10 4\n"
|
|
"%5 = OpTypeMatrix %20 2\n"
|
|
"%6 = OpTypeMatrix %3 3\n"
|
|
"%7 = OpTypeMatrix %40 4",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeBool"},
|
|
{2, "%2 = OpTypeVector %10 2"},
|
|
{3, "%3 = OpTypeVector %10 3"},
|
|
{4, "%4 = OpTypeVector %10 4"},
|
|
{5, "%5 = OpTypeMatrix %20 2"},
|
|
{6, "%6 = OpTypeMatrix %3 3"},
|
|
{7, "%7 = OpTypeMatrix %40 4"},
|
|
},
|
|
{ // uses
|
|
{10,
|
|
{
|
|
"%2 = OpTypeVector %10 2",
|
|
"%3 = OpTypeVector %10 3",
|
|
"%4 = OpTypeVector %10 4",
|
|
}
|
|
},
|
|
{20, {"%5 = OpTypeMatrix %20 2"}},
|
|
{3, {"%6 = OpTypeMatrix %3 3"}},
|
|
{40, {"%7 = OpTypeMatrix %40 4"}},
|
|
},
|
|
},
|
|
},
|
|
{ // OpPhi.
|
|
kOpPhiTestFunction,
|
|
// replace one id used by OpPhi, replace one id generated by OpPhi
|
|
{{9, 9000}, {11, 9}},
|
|
"%2 = OpFunction %1 None %3\n"
|
|
"%4 = OpLabel\n"
|
|
"OpBranch %5\n"
|
|
|
|
"%5 = OpLabel\n"
|
|
"%7 = OpPhi %6 %8 %4 %9000 %5\n" // %9 -> %9000
|
|
"%11 = OpPhi %10 %12 %4 %13 %5\n"
|
|
"%9 = OpIAdd %6 %7 %14\n"
|
|
"%13 = OpFAdd %10 %9 %15\n" // %11 -> %9
|
|
"%17 = OpSLessThan %16 %7 %18\n"
|
|
"OpLoopMerge %19 %5 None\n"
|
|
"OpBranchConditional %17 %5 %19\n"
|
|
|
|
"%19 = OpLabel\n"
|
|
"OpReturn\n"
|
|
"OpFunctionEnd",
|
|
{
|
|
{ // defs.
|
|
{2, "%2 = OpFunction %1 None %3"},
|
|
{4, "%4 = OpLabel"},
|
|
{5, "%5 = OpLabel"},
|
|
{7, "%7 = OpPhi %6 %8 %4 %9000 %5"},
|
|
{9, "%9 = OpIAdd %6 %7 %14"},
|
|
{11, "%11 = OpPhi %10 %12 %4 %13 %5"},
|
|
{13, "%13 = OpFAdd %10 %9 %15"},
|
|
{17, "%17 = OpSLessThan %16 %7 %18"},
|
|
{19, "%19 = OpLabel"},
|
|
},
|
|
{ // uses
|
|
{1, {"%2 = OpFunction %1 None %3"}},
|
|
{3, {"%2 = OpFunction %1 None %3"}},
|
|
{4,
|
|
{
|
|
"%7 = OpPhi %6 %8 %4 %9000 %5",
|
|
"%11 = OpPhi %10 %12 %4 %13 %5",
|
|
}
|
|
},
|
|
{5,
|
|
{
|
|
"OpBranch %5",
|
|
"%7 = OpPhi %6 %8 %4 %9000 %5",
|
|
"%11 = OpPhi %10 %12 %4 %13 %5",
|
|
"OpLoopMerge %19 %5 None",
|
|
"OpBranchConditional %17 %5 %19",
|
|
}
|
|
},
|
|
{6,
|
|
{
|
|
"%7 = OpPhi %6 %8 %4 %9000 %5",
|
|
"%9 = OpIAdd %6 %7 %14",
|
|
}
|
|
},
|
|
{7,
|
|
{
|
|
"%9 = OpIAdd %6 %7 %14",
|
|
"%17 = OpSLessThan %16 %7 %18",
|
|
}
|
|
},
|
|
{8, {"%7 = OpPhi %6 %8 %4 %9000 %5"}},
|
|
{9, {"%13 = OpFAdd %10 %9 %15"}}, // uses of %9 changed from %7 to %13
|
|
{10,
|
|
{
|
|
"%11 = OpPhi %10 %12 %4 %13 %5",
|
|
"%13 = OpFAdd %10 %9 %15",
|
|
}
|
|
},
|
|
// no more uses of %11
|
|
{12, {"%11 = OpPhi %10 %12 %4 %13 %5"}},
|
|
{13, {"%11 = OpPhi %10 %12 %4 %13 %5"}},
|
|
{14, {"%9 = OpIAdd %6 %7 %14"}},
|
|
{15, {"%13 = OpFAdd %10 %9 %15"}},
|
|
{16, {"%17 = OpSLessThan %16 %7 %18"}},
|
|
{17, {"OpBranchConditional %17 %5 %19"}},
|
|
{18, {"%17 = OpSLessThan %16 %7 %18"}},
|
|
{19,
|
|
{
|
|
"OpLoopMerge %19 %5 None",
|
|
"OpBranchConditional %17 %5 %19",
|
|
}
|
|
},
|
|
// new uses of %9000
|
|
{9000, {"%7 = OpPhi %6 %8 %4 %9000 %5"}},
|
|
},
|
|
},
|
|
},
|
|
{ // OpPhi defining and referencing the same id.
|
|
"%1 = OpTypeBool "
|
|
"%2 = OpConstantTrue %1 "
|
|
|
|
"%4 = OpFunction %3 None %5 "
|
|
"%6 = OpLabel "
|
|
" OpBranch %7 "
|
|
"%7 = OpLabel "
|
|
"%8 = OpPhi %1 %8 %7 %2 %6 " // both defines and uses %8
|
|
" OpBranch %7 "
|
|
" OpFunctionEnd",
|
|
{{8, 2}},
|
|
"%1 = OpTypeBool\n"
|
|
"%2 = OpConstantTrue %1\n"
|
|
|
|
"%4 = OpFunction %3 None %5\n"
|
|
"%6 = OpLabel\n"
|
|
"OpBranch %7\n"
|
|
"%7 = OpLabel\n"
|
|
"%8 = OpPhi %1 %2 %7 %2 %6\n" // use of %8 changed to %2
|
|
"OpBranch %7\n"
|
|
"OpFunctionEnd",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeBool"},
|
|
{2, "%2 = OpConstantTrue %1"},
|
|
{4, "%4 = OpFunction %3 None %5"},
|
|
{6, "%6 = OpLabel"},
|
|
{7, "%7 = OpLabel"},
|
|
{8, "%8 = OpPhi %1 %2 %7 %2 %6"},
|
|
},
|
|
{ // uses
|
|
{1,
|
|
{
|
|
"%2 = OpConstantTrue %1",
|
|
"%8 = OpPhi %1 %2 %7 %2 %6",
|
|
}
|
|
},
|
|
{2,
|
|
{
|
|
// TODO(antiagainst): address this.
|
|
// We have duplication here because we didn't check existence
|
|
// before inserting uses.
|
|
"%8 = OpPhi %1 %2 %7 %2 %6",
|
|
"%8 = OpPhi %1 %2 %7 %2 %6",
|
|
}
|
|
},
|
|
{3, {"%4 = OpFunction %3 None %5"}},
|
|
{5, {"%4 = OpFunction %3 None %5"}},
|
|
{6, {"%8 = OpPhi %1 %2 %7 %2 %6"}},
|
|
{7,
|
|
{
|
|
"OpBranch %7",
|
|
"%8 = OpPhi %1 %2 %7 %2 %6",
|
|
"OpBranch %7",
|
|
}
|
|
},
|
|
// {8, {"%8 = OpPhi %1 %8 %7 %2 %6"}},
|
|
},
|
|
},
|
|
},
|
|
})
|
|
);
|
|
// clang-format on
|
|
|
|
struct KillDefCase {
|
|
const char* before;
|
|
std::vector<uint32_t> ids_to_kill;
|
|
const char* after;
|
|
InstDefUse du;
|
|
};
|
|
|
|
using KillDefTest = ::testing::TestWithParam<KillDefCase>;
|
|
|
|
TEST_P(KillDefTest, Case) {
|
|
const auto& tc = GetParam();
|
|
|
|
// Build module.
|
|
const std::vector<const char*> text = {tc.before};
|
|
std::unique_ptr<ir::Module> module =
|
|
SpvTools(SPV_ENV_UNIVERSAL_1_1).BuildModule(JoinAllInsts(text));
|
|
ASSERT_NE(nullptr, module);
|
|
|
|
// Analyze def and use.
|
|
opt::analysis::DefUseManager manager(module.get());
|
|
|
|
// Do the substitution.
|
|
for (const auto id : tc.ids_to_kill) manager.KillDef(id);
|
|
|
|
EXPECT_EQ(tc.after, DisassembleModule(module.get()));
|
|
CheckDef(tc.du, manager.id_to_defs());
|
|
CheckUse(tc.du, manager.id_to_uses());
|
|
}
|
|
|
|
// clang-format off
|
|
INSTANTIATE_TEST_CASE_P(
|
|
TestCase, KillDefTest,
|
|
::testing::ValuesIn(std::vector<KillDefCase>{
|
|
{ // no def, no use, no kill
|
|
"", {}, "", {}
|
|
},
|
|
{ // kill nothing
|
|
"%1 = OpTypeBool "
|
|
"%2 = OpTypeVector %1 2 "
|
|
"%3 = OpTypeVector %1 3 ",
|
|
{},
|
|
"%1 = OpTypeBool\n"
|
|
"%2 = OpTypeVector %1 2\n"
|
|
"%3 = OpTypeVector %1 3",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeBool"},
|
|
{2, "%2 = OpTypeVector %1 2"},
|
|
{3, "%3 = OpTypeVector %1 3"},
|
|
},
|
|
{ // uses
|
|
{1,
|
|
{
|
|
"%2 = OpTypeVector %1 2",
|
|
"%3 = OpTypeVector %1 3",
|
|
}
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{ // kill id used, kill id not used, kill id not defined
|
|
"%1 = OpTypeBool "
|
|
"%2 = OpTypeVector %1 2 "
|
|
"%3 = OpTypeVector %1 3 "
|
|
"%4 = OpTypeVector %1 4 "
|
|
"%5 = OpTypeMatrix %3 3 "
|
|
"%6 = OpTypeMatrix %2 3",
|
|
{1, 3, 5, 10}, // ids to kill
|
|
"OpNop\n"
|
|
"%2 = OpTypeVector %1 2\n"
|
|
"OpNop\n"
|
|
"%4 = OpTypeVector %1 4\n"
|
|
"OpNop\n"
|
|
"%6 = OpTypeMatrix %2 3",
|
|
{
|
|
{ // defs
|
|
{2, "%2 = OpTypeVector %1 2"},
|
|
{4, "%4 = OpTypeVector %1 4"},
|
|
{6, "%6 = OpTypeMatrix %2 3"},
|
|
},
|
|
{ // uses. %1 and %3 are both killed, so no uses
|
|
// recorded for them anymore.
|
|
{2, {"%6 = OpTypeMatrix %2 3"}},
|
|
}
|
|
},
|
|
},
|
|
{ // OpPhi.
|
|
kOpPhiTestFunction,
|
|
{9, 11}, // kill one id used by OpPhi, kill one id generated by OpPhi
|
|
"%2 = OpFunction %1 None %3\n"
|
|
"%4 = OpLabel\n"
|
|
"OpBranch %5\n"
|
|
|
|
"%5 = OpLabel\n"
|
|
"%7 = OpPhi %6 %8 %4 %9 %5\n"
|
|
"OpNop\n"
|
|
"OpNop\n"
|
|
"%13 = OpFAdd %10 %11 %15\n"
|
|
"%17 = OpSLessThan %16 %7 %18\n"
|
|
"OpLoopMerge %19 %5 None\n"
|
|
"OpBranchConditional %17 %5 %19\n"
|
|
|
|
"%19 = OpLabel\n"
|
|
"OpReturn\n"
|
|
"OpFunctionEnd",
|
|
{
|
|
{ // defs. %9 & %11 are killed.
|
|
{2, "%2 = OpFunction %1 None %3"},
|
|
{4, "%4 = OpLabel"},
|
|
{5, "%5 = OpLabel"},
|
|
{7, "%7 = OpPhi %6 %8 %4 %9 %5"},
|
|
{13, "%13 = OpFAdd %10 %11 %15"},
|
|
{17, "%17 = OpSLessThan %16 %7 %18"},
|
|
{19, "%19 = OpLabel"},
|
|
},
|
|
{ // uses
|
|
{1, {"%2 = OpFunction %1 None %3"}},
|
|
{3, {"%2 = OpFunction %1 None %3"}},
|
|
{4,
|
|
{
|
|
"%7 = OpPhi %6 %8 %4 %9 %5",
|
|
// "%11 = OpPhi %10 %12 %4 %13 %5",
|
|
}
|
|
},
|
|
{5,
|
|
{
|
|
"OpBranch %5",
|
|
"%7 = OpPhi %6 %8 %4 %9 %5",
|
|
// "%11 = OpPhi %10 %12 %4 %13 %5",
|
|
"OpLoopMerge %19 %5 None",
|
|
"OpBranchConditional %17 %5 %19",
|
|
}
|
|
},
|
|
{6,
|
|
{
|
|
"%7 = OpPhi %6 %8 %4 %9 %5",
|
|
// "%9 = OpIAdd %6 %7 %14",
|
|
}
|
|
},
|
|
{7,
|
|
{
|
|
// "%9 = OpIAdd %6 %7 %14",
|
|
"%17 = OpSLessThan %16 %7 %18",
|
|
}
|
|
},
|
|
{8, {"%7 = OpPhi %6 %8 %4 %9 %5"}},
|
|
// {9, {"%7 = OpPhi %6 %8 %4 %9 %5"}},
|
|
{10,
|
|
{
|
|
// "%11 = OpPhi %10 %12 %4 %13 %5",
|
|
"%13 = OpFAdd %10 %11 %15",
|
|
}
|
|
},
|
|
// {11, {"%13 = OpFAdd %10 %11 %15"}},
|
|
// {12, {"%11 = OpPhi %10 %12 %4 %13 %5"}},
|
|
// {13, {"%11 = OpPhi %10 %12 %4 %13 %5"}},
|
|
// {14, {"%9 = OpIAdd %6 %7 %14"}},
|
|
{15, {"%13 = OpFAdd %10 %11 %15"}},
|
|
{16, {"%17 = OpSLessThan %16 %7 %18"}},
|
|
{17, {"OpBranchConditional %17 %5 %19"}},
|
|
{18, {"%17 = OpSLessThan %16 %7 %18"}},
|
|
{19,
|
|
{
|
|
"OpLoopMerge %19 %5 None",
|
|
"OpBranchConditional %17 %5 %19",
|
|
}
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{ // OpPhi defining and referencing the same id.
|
|
"%1 = OpTypeBool "
|
|
"%2 = OpConstantTrue %1 "
|
|
|
|
"%4 = OpFunction %3 None %5 "
|
|
"%6 = OpLabel "
|
|
" OpBranch %7 "
|
|
"%7 = OpLabel "
|
|
"%8 = OpPhi %1 %8 %7 %2 %6 " // both defines and uses %8
|
|
" OpBranch %7 "
|
|
" OpFunctionEnd",
|
|
{8},
|
|
"%1 = OpTypeBool\n"
|
|
"%2 = OpConstantTrue %1\n"
|
|
|
|
"%4 = OpFunction %3 None %5\n"
|
|
"%6 = OpLabel\n"
|
|
"OpBranch %7\n"
|
|
"%7 = OpLabel\n"
|
|
"OpNop\n"
|
|
"OpBranch %7\n"
|
|
"OpFunctionEnd",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeBool"},
|
|
{2, "%2 = OpConstantTrue %1"},
|
|
{4, "%4 = OpFunction %3 None %5"},
|
|
{6, "%6 = OpLabel"},
|
|
{7, "%7 = OpLabel"},
|
|
// {8, "%8 = OpPhi %1 %8 %7 %2 %6"},
|
|
},
|
|
{ // uses
|
|
{1,
|
|
{
|
|
"%2 = OpConstantTrue %1",
|
|
// "%8 = OpPhi %1 %8 %7 %2 %6",
|
|
}
|
|
},
|
|
// {2, {"%8 = OpPhi %1 %8 %7 %2 %6"}},
|
|
{3, {"%4 = OpFunction %3 None %5"}},
|
|
{5, {"%4 = OpFunction %3 None %5"}},
|
|
// {6, {"%8 = OpPhi %1 %8 %7 %2 %6"}},
|
|
{7,
|
|
{
|
|
"OpBranch %7",
|
|
// "%8 = OpPhi %1 %8 %7 %2 %6",
|
|
"OpBranch %7",
|
|
}
|
|
},
|
|
// {8, {"%8 = OpPhi %1 %8 %7 %2 %6"}},
|
|
},
|
|
},
|
|
},
|
|
})
|
|
);
|
|
// clang-format on
|
|
//
|
|
TEST(DefUseTest, OpSwitch) {
|
|
// Because disassembler has basic type check for OpSwitch's selector, we
|
|
// cannot use the DisassembleInst() in the above. Thus, this special spotcheck
|
|
// test case.
|
|
|
|
const char original_text[] =
|
|
// int64 f(int64 v) {
|
|
// switch (v) {
|
|
// case 1: break;
|
|
// case -4294967296: break;
|
|
// case 9223372036854775807: break;
|
|
// default: break;
|
|
// }
|
|
// return v;
|
|
// }
|
|
" %1 = OpTypeInt 64 1 "
|
|
" %2 = OpFunction %1 None %3 " // %3 is int64(int64)*
|
|
" %4 = OpFunctionParameter %1 "
|
|
" %5 = OpLabel "
|
|
" %6 = OpLoad %1 %4 " // selector value
|
|
" OpSelectionMerge %7 None "
|
|
" OpSwitch %6 %8 "
|
|
" 1 %9 " // 1
|
|
" -4294967296 %10 " // -2^32
|
|
" 9223372036854775807 %11 " // 2^63-1
|
|
" %8 = OpLabel " // default
|
|
" OpBranch %7 "
|
|
" %9 = OpLabel "
|
|
" OpBranch %7 "
|
|
"%10 = OpLabel "
|
|
" OpBranch %7 "
|
|
"%11 = OpLabel "
|
|
" OpBranch %7 "
|
|
" %7 = OpLabel "
|
|
" OpReturnValue %6 "
|
|
" OpFunctionEnd";
|
|
|
|
std::unique_ptr<ir::Module> module =
|
|
SpvTools(SPV_ENV_UNIVERSAL_1_1).BuildModule(original_text);
|
|
ASSERT_NE(nullptr, module);
|
|
|
|
// Analyze def and use.
|
|
opt::analysis::DefUseManager manager(module.get());
|
|
|
|
// Do a bunch replacements.
|
|
manager.ReplaceAllUsesWith(9, 900); // to unused id
|
|
manager.ReplaceAllUsesWith(10, 1000); // to unused id
|
|
manager.ReplaceAllUsesWith(11, 7); // to existing id
|
|
|
|
// clang-format off
|
|
const char modified_text[] =
|
|
"%1 = OpTypeInt 64 1\n"
|
|
"%2 = OpFunction %1 None %3\n" // %3 is int64(int64)*
|
|
"%4 = OpFunctionParameter %1\n"
|
|
"%5 = OpLabel\n"
|
|
"%6 = OpLoad %1 %4\n" // selector value
|
|
"OpSelectionMerge %7 None\n"
|
|
"OpSwitch %6 %8 1 %900 -4294967296 %1000 9223372036854775807 %7\n" // changed!
|
|
"%8 = OpLabel\n" // default
|
|
"OpBranch %7\n"
|
|
"%9 = OpLabel\n"
|
|
"OpBranch %7\n"
|
|
"%10 = OpLabel\n"
|
|
"OpBranch %7\n"
|
|
"%11 = OpLabel\n"
|
|
"OpBranch %7\n"
|
|
"%7 = OpLabel\n"
|
|
"OpReturnValue %6\n"
|
|
"OpFunctionEnd";
|
|
// clang-format on
|
|
|
|
EXPECT_EQ(modified_text, DisassembleModule(module.get()));
|
|
|
|
InstDefUse def_uses = {};
|
|
def_uses.defs = {
|
|
{1, "%1 = OpTypeInt 64 1"},
|
|
{2, "%2 = OpFunction %1 None %3"},
|
|
{4, "%4 = OpFunctionParameter %1"},
|
|
{5, "%5 = OpLabel"},
|
|
{6, "%6 = OpLoad %1 %4"},
|
|
{7, "%7 = OpLabel"},
|
|
{8, "%8 = OpLabel"},
|
|
{9, "%9 = OpLabel"},
|
|
{10, "%10 = OpLabel"},
|
|
{11, "%11 = OpLabel"},
|
|
};
|
|
CheckDef(def_uses, manager.id_to_defs());
|
|
|
|
{
|
|
auto* use_list = manager.GetUses(6);
|
|
ASSERT_NE(nullptr, use_list);
|
|
EXPECT_EQ(2u, use_list->size());
|
|
EXPECT_EQ(SpvOpSwitch, use_list->front().inst->opcode());
|
|
EXPECT_EQ(SpvOpReturnValue, use_list->back().inst->opcode());
|
|
}
|
|
{
|
|
auto* use_list = manager.GetUses(7);
|
|
ASSERT_NE(nullptr, use_list);
|
|
EXPECT_EQ(6u, use_list->size());
|
|
std::vector<SpvOp> opcodes;
|
|
for (const auto& use : *use_list) {
|
|
opcodes.push_back(use.inst->opcode());
|
|
}
|
|
// OpSwitch is now a user of %7.
|
|
EXPECT_THAT(opcodes,
|
|
ElementsAre(SpvOpSelectionMerge, SpvOpBranch, SpvOpBranch,
|
|
SpvOpBranch, SpvOpBranch, SpvOpSwitch));
|
|
}
|
|
// Check all ids only used by OpSwitch after replacement.
|
|
for (const auto id : {8, 900, 1000}) {
|
|
auto* use_list = manager.GetUses(id);
|
|
ASSERT_NE(nullptr, use_list);
|
|
EXPECT_EQ(1u, use_list->size());
|
|
EXPECT_EQ(SpvOpSwitch, use_list->front().inst->opcode());
|
|
}
|
|
}
|
|
|
|
// Creates an |result_id| = OpTypeInt 32 1 instruction.
|
|
ir::Instruction Int32TypeInstruction(uint32_t result_id) {
|
|
return ir::Instruction(SpvOp::SpvOpTypeInt, 0, result_id,
|
|
{ir::Operand(SPV_OPERAND_TYPE_LITERAL_INTEGER, {32}),
|
|
ir::Operand(SPV_OPERAND_TYPE_LITERAL_INTEGER, {1})});
|
|
}
|
|
|
|
// Creates an |result_id| = OpConstantTrue/Flase |type_id| instruction.
|
|
ir::Instruction ConstantBoolInstruction(bool value, uint32_t type_id,
|
|
uint32_t result_id) {
|
|
return ir::Instruction(
|
|
value ? SpvOp::SpvOpConstantTrue : SpvOp::SpvOpConstantFalse, type_id,
|
|
result_id, {});
|
|
}
|
|
|
|
// Creates an |result_id| = OpLabel instruction.
|
|
ir::Instruction LabelInstruction(uint32_t result_id) {
|
|
return ir::Instruction(SpvOp::SpvOpLabel, 0, result_id, {});
|
|
}
|
|
|
|
// Creates an OpBranch |target_id| instruction.
|
|
ir::Instruction BranchInstruction(uint32_t target_id) {
|
|
return ir::Instruction(SpvOp::SpvOpBranch, 0, 0,
|
|
{
|
|
ir::Operand(SPV_OPERAND_TYPE_ID, {target_id}),
|
|
});
|
|
}
|
|
|
|
// Test case for analyzing individual instructions.
|
|
struct AnalyzeInstDefUseTestCase {
|
|
std::vector<ir::Instruction> insts; // instrutions to be analyzed in order.
|
|
const char* module_text;
|
|
InstDefUse expected_define_use;
|
|
};
|
|
|
|
using AnalyzeInstDefUseTest =
|
|
::testing::TestWithParam<AnalyzeInstDefUseTestCase>;
|
|
|
|
// Test the analyzing result for individual instructions.
|
|
TEST_P(AnalyzeInstDefUseTest, Case) {
|
|
auto tc = GetParam();
|
|
|
|
// Build module.
|
|
std::unique_ptr<ir::Module> module =
|
|
SpvTools(SPV_ENV_UNIVERSAL_1_1).BuildModule(tc.module_text);
|
|
ASSERT_NE(nullptr, module);
|
|
|
|
// Analyze the instructions.
|
|
opt::analysis::DefUseManager manager(module.get());
|
|
for (ir::Instruction& inst : tc.insts) {
|
|
manager.AnalyzeInstDefUse(&inst);
|
|
}
|
|
|
|
CheckDef(tc.expected_define_use, manager.id_to_defs());
|
|
CheckUse(tc.expected_define_use, manager.id_to_uses());
|
|
}
|
|
|
|
// clang-format off
|
|
INSTANTIATE_TEST_CASE_P(
|
|
TestCase, AnalyzeInstDefUseTest,
|
|
::testing::ValuesIn(std::vector<AnalyzeInstDefUseTestCase>{
|
|
{ // A type declaring instruction.
|
|
{Int32TypeInstruction(1)},
|
|
"",
|
|
{
|
|
// defs
|
|
{{1, "%1 = OpTypeInt 32 1"}},
|
|
{}, // no uses
|
|
},
|
|
},
|
|
{ // A type declaring instruction and a constant value.
|
|
{
|
|
Int32TypeInstruction(1),
|
|
ConstantBoolInstruction(true, 1, 2),
|
|
},
|
|
"",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeInt 32 1"},
|
|
{2, "%2 = OpConstantTrue %1"}, // It is fine the SPIR-V code here is invalid.
|
|
},
|
|
{ // uses
|
|
{1, {"%2 = OpConstantTrue %1"}},
|
|
},
|
|
},
|
|
},
|
|
{ // Analyze two instrutions that have same result id. The def use info
|
|
// of the result id from the first instruction should be overwritten by
|
|
// the second instruction.
|
|
{
|
|
ConstantBoolInstruction(true, 1, 2),
|
|
// The def-use info of the following instruction should overwrite the
|
|
// records of the above one.
|
|
ConstantBoolInstruction(false, 3, 2),
|
|
},
|
|
"",
|
|
{
|
|
// defs
|
|
{{2, "%2 = OpConstantFalse %3"}},
|
|
// uses
|
|
{{3, {"%2 = OpConstantFalse %3"}}}
|
|
}
|
|
},
|
|
{ // Analyze forward reference instruction, also instruction that does
|
|
// not have result id.
|
|
{
|
|
BranchInstruction(2),
|
|
LabelInstruction(2),
|
|
},
|
|
"",
|
|
{
|
|
// defs
|
|
{{2, "%2 = OpLabel"}},
|
|
// uses
|
|
{{2, {"OpBranch %2"}}},
|
|
}
|
|
},
|
|
{ // Analyzing an additional instruction with new result id to an
|
|
// existing module.
|
|
{
|
|
ConstantBoolInstruction(true, 1, 2),
|
|
},
|
|
"%1 = OpTypeInt 32 1 ",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeInt 32 1"},
|
|
{2, "%2 = OpConstantTrue %1"},
|
|
},
|
|
{ // uses
|
|
{1, {"%2 = OpConstantTrue %1"}},
|
|
},
|
|
}
|
|
},
|
|
{ // Analyzing an additional instruction with existing result id to an
|
|
// existing module.
|
|
{
|
|
ConstantBoolInstruction(true, 1, 2),
|
|
},
|
|
"%1 = OpTypeInt 32 1 "
|
|
"%2 = OpTypeBool ",
|
|
{
|
|
{ // defs
|
|
{1, "%1 = OpTypeInt 32 1"},
|
|
{2, "%2 = OpConstantTrue %1"},
|
|
},
|
|
{ // uses
|
|
{1, {"%2 = OpConstantTrue %1"}},
|
|
},
|
|
}
|
|
},
|
|
}));
|
|
// clang-format on
|
|
|
|
struct KillInstTestCase {
|
|
const char* before;
|
|
std::unordered_set<uint32_t> indices_for_inst_to_kill;
|
|
const char* after;
|
|
InstDefUse expected_define_use;
|
|
};
|
|
|
|
using KillInstTest = ::testing::TestWithParam<KillInstTestCase>;
|
|
|
|
TEST_P(KillInstTest, Case) {
|
|
auto tc = GetParam();
|
|
|
|
// Build module.
|
|
std::unique_ptr<ir::Module> module =
|
|
SpvTools(SPV_ENV_UNIVERSAL_1_1).BuildModule(tc.before);
|
|
ASSERT_NE(nullptr, module);
|
|
|
|
// KillInst
|
|
uint32_t index = 0;
|
|
opt::analysis::DefUseManager manager(module.get());
|
|
module->ForEachInst([&index, &tc, &manager](ir::Instruction* inst) {
|
|
if (tc.indices_for_inst_to_kill.count(index) != 0) {
|
|
manager.KillInst(inst);
|
|
}
|
|
index++;
|
|
});
|
|
|
|
EXPECT_EQ(tc.after, DisassembleModule(module.get()));
|
|
CheckDef(tc.expected_define_use, manager.id_to_defs());
|
|
CheckUse(tc.expected_define_use, manager.id_to_uses());
|
|
}
|
|
|
|
// clang-format off
|
|
INSTANTIATE_TEST_CASE_P(
|
|
TestCase, KillInstTest,
|
|
::testing::ValuesIn(std::vector<KillInstTestCase>{
|
|
// Kill id defining instructions.
|
|
{
|
|
"%2 = OpFunction %1 None %3 "
|
|
"%4 = OpLabel "
|
|
" OpBranch %5 "
|
|
"%5 = OpLabel "
|
|
" OpBranch %6 "
|
|
"%6 = OpLabel "
|
|
" OpBranch %4 "
|
|
"%7 = OpLabel "
|
|
" OpReturn "
|
|
" OpFunctionEnd",
|
|
{0, 3, 5, 7},
|
|
"OpNop\n"
|
|
"%4 = OpLabel\n"
|
|
"OpBranch %5\n"
|
|
"OpNop\n"
|
|
"OpBranch %6\n"
|
|
"OpNop\n"
|
|
"OpBranch %4\n"
|
|
"OpNop\n"
|
|
"OpReturn\n"
|
|
"OpFunctionEnd",
|
|
{
|
|
// defs
|
|
{{4, "%4 = OpLabel"}},
|
|
// uses
|
|
{{4, {"OpBranch %4"}}}
|
|
}
|
|
},
|
|
// Kill instructions that do not have result ids.
|
|
{
|
|
"%2 = OpFunction %1 None %3 "
|
|
"%4 = OpLabel "
|
|
" OpBranch %5 "
|
|
"%5 = OpLabel "
|
|
" OpBranch %6 "
|
|
"%6 = OpLabel "
|
|
" OpBranch %4 "
|
|
"%7 = OpLabel "
|
|
" OpReturn "
|
|
" OpFunctionEnd",
|
|
{2, 4},
|
|
"%2 = OpFunction %1 None %3\n"
|
|
"%4 = OpLabel\n"
|
|
"OpNop\n"
|
|
"%5 = OpLabel\n"
|
|
"OpNop\n"
|
|
"%6 = OpLabel\n"
|
|
"OpBranch %4\n"
|
|
"%7 = OpLabel\n"
|
|
"OpReturn\n"
|
|
"OpFunctionEnd",
|
|
{
|
|
// defs
|
|
{
|
|
{2, "%2 = OpFunction %1 None %3"},
|
|
{4, "%4 = OpLabel"},
|
|
{5, "%5 = OpLabel"},
|
|
{6, "%6 = OpLabel"},
|
|
{7, "%7 = OpLabel"},
|
|
},
|
|
// uses
|
|
{
|
|
{1, {"%2 = OpFunction %1 None %3"}},
|
|
{3, {"%2 = OpFunction %1 None %3"}},
|
|
{4, {"OpBranch %4"}},
|
|
}
|
|
}
|
|
},
|
|
}));
|
|
// clang-format on
|
|
|
|
} // anonymous namespace
|