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third_party_spirv-tools/test/opt/ir_context_test.cpp
Jaebaek Seo df4198e50e
Add DebugValue for DebugDecl invisible to value assignment (#3973) 
For some cases, we have DebugDecl invisible to a value assignment, but
the value assignment information is important i.e., debugger cannot inspect
the variable without the information. For example, a parameter of an inlined
function must have its value assignment i.e., argument passing out of its
function scope. If we simply remove DebugDecl because it is invisible to the
argument passing, we cannot inspec the variable.

This PR
- Adds DebugValue for DebugDecl invisible to a value assignment. We use
the value of the variable in the basic block that contains DebugDecl, which is
found by ssa-rewrite. If the value instruction does not dominate DebugDecl,
we use the value of the variable in the immediate dominator of the basic block.
- Checks the visibility of DebugDecl for Phi value assignment based on the
all value operands of the Phi. Since Phi just references multiple values from
multiple basic blocks, scopes of value operands must be regarded as the scope
of the Phi.
2020-10-27 15:10:08 -04:00

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// Copyright (c) 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "source/opt/ir_context.h"
#include <algorithm>
#include <memory>
#include <string>
#include <utility>
#include "OpenCLDebugInfo100.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "source/opt/pass.h"
#include "test/opt/pass_fixture.h"
#include "test/opt/pass_utils.h"
static const uint32_t kDebugDeclareOperandVariableIndex = 5;
static const uint32_t kDebugValueOperandValueIndex = 5;
namespace spvtools {
namespace opt {
namespace {
using Analysis = IRContext::Analysis;
using ::testing::Each;
using ::testing::UnorderedElementsAre;
class NoopPassPreservesNothing : public Pass {
public:
NoopPassPreservesNothing(Status s) : Pass(), status_to_return_(s) {}
const char* name() const override { return "noop-pass"; }
Status Process() override { return status_to_return_; }
private:
Status status_to_return_;
};
class NoopPassPreservesAll : public Pass {
public:
NoopPassPreservesAll(Status s) : Pass(), status_to_return_(s) {}
const char* name() const override { return "noop-pass"; }
Status Process() override { return status_to_return_; }
Analysis GetPreservedAnalyses() override {
return Analysis(IRContext::kAnalysisEnd - 1);
}
private:
Status status_to_return_;
};
class NoopPassPreservesFirst : public Pass {
public:
NoopPassPreservesFirst(Status s) : Pass(), status_to_return_(s) {}
const char* name() const override { return "noop-pass"; }
Status Process() override { return status_to_return_; }
Analysis GetPreservedAnalyses() override { return IRContext::kAnalysisBegin; }
private:
Status status_to_return_;
};
using IRContextTest = PassTest<::testing::Test>;
TEST_F(IRContextTest, IndividualValidAfterBuild) {
std::unique_ptr<Module> module(new Module());
IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
spvtools::MessageConsumer());
for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
i <<= 1) {
localContext.BuildInvalidAnalyses(i);
EXPECT_TRUE(localContext.AreAnalysesValid(i));
}
}
TEST_F(IRContextTest, AllValidAfterBuild) {
std::unique_ptr<Module> module = MakeUnique<Module>();
IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
spvtools::MessageConsumer());
Analysis built_analyses = IRContext::kAnalysisNone;
for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
i <<= 1) {
localContext.BuildInvalidAnalyses(i);
built_analyses |= i;
}
EXPECT_TRUE(localContext.AreAnalysesValid(built_analyses));
}
TEST_F(IRContextTest, AllValidAfterPassNoChange) {
std::unique_ptr<Module> module = MakeUnique<Module>();
IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
spvtools::MessageConsumer());
Analysis built_analyses = IRContext::kAnalysisNone;
for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
i <<= 1) {
localContext.BuildInvalidAnalyses(i);
built_analyses |= i;
}
NoopPassPreservesNothing pass(Pass::Status::SuccessWithoutChange);
Pass::Status s = pass.Run(&localContext);
EXPECT_EQ(s, Pass::Status::SuccessWithoutChange);
EXPECT_TRUE(localContext.AreAnalysesValid(built_analyses));
}
TEST_F(IRContextTest, NoneValidAfterPassWithChange) {
std::unique_ptr<Module> module = MakeUnique<Module>();
IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
spvtools::MessageConsumer());
for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
i <<= 1) {
localContext.BuildInvalidAnalyses(i);
}
NoopPassPreservesNothing pass(Pass::Status::SuccessWithChange);
Pass::Status s = pass.Run(&localContext);
EXPECT_EQ(s, Pass::Status::SuccessWithChange);
for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
i <<= 1) {
EXPECT_FALSE(localContext.AreAnalysesValid(i));
}
}
TEST_F(IRContextTest, AllPreservedAfterPassWithChange) {
std::unique_ptr<Module> module = MakeUnique<Module>();
IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
spvtools::MessageConsumer());
for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
i <<= 1) {
localContext.BuildInvalidAnalyses(i);
}
NoopPassPreservesAll pass(Pass::Status::SuccessWithChange);
Pass::Status s = pass.Run(&localContext);
EXPECT_EQ(s, Pass::Status::SuccessWithChange);
for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
i <<= 1) {
EXPECT_TRUE(localContext.AreAnalysesValid(i));
}
}
TEST_F(IRContextTest, PreserveFirstOnlyAfterPassWithChange) {
std::unique_ptr<Module> module = MakeUnique<Module>();
IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
spvtools::MessageConsumer());
for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
i <<= 1) {
localContext.BuildInvalidAnalyses(i);
}
NoopPassPreservesFirst pass(Pass::Status::SuccessWithChange);
Pass::Status s = pass.Run(&localContext);
EXPECT_EQ(s, Pass::Status::SuccessWithChange);
EXPECT_TRUE(localContext.AreAnalysesValid(IRContext::kAnalysisBegin));
for (Analysis i = IRContext::kAnalysisBegin << 1; i < IRContext::kAnalysisEnd;
i <<= 1) {
EXPECT_FALSE(localContext.AreAnalysesValid(i));
}
}
TEST_F(IRContextTest, KillMemberName) {
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main"
OpExecutionMode %2 OriginUpperLeft
OpSource GLSL 430
OpName %3 "stuff"
OpMemberName %3 0 "refZ"
OpMemberDecorate %3 0 Offset 0
OpDecorate %3 Block
%4 = OpTypeFloat 32
%3 = OpTypeStruct %4
%5 = OpTypeVoid
%6 = OpTypeFunction %5
%2 = OpFunction %5 None %6
%7 = OpLabel
OpReturn
OpFunctionEnd
)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
// Build the decoration manager.
context->get_decoration_mgr();
// Delete the OpTypeStruct. Should delete the OpName, OpMemberName, and
// OpMemberDecorate associated with it.
context->KillDef(3);
// Make sure all of the name are removed.
for (auto& inst : context->debugs2()) {
EXPECT_EQ(inst.opcode(), SpvOpNop);
}
// Make sure all of the decorations are removed.
for (auto& inst : context->annotations()) {
EXPECT_EQ(inst.opcode(), SpvOpNop);
}
}
TEST_F(IRContextTest, KillGroupDecoration) {
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main"
OpExecutionMode %2 OriginUpperLeft
OpSource GLSL 430
OpDecorate %3 Restrict
%3 = OpDecorationGroup
OpGroupDecorate %3 %4 %5
%6 = OpTypeFloat 32
%7 = OpTypePointer Function %6
%8 = OpTypeStruct %6
%9 = OpTypeVoid
%10 = OpTypeFunction %9
%2 = OpFunction %9 None %10
%11 = OpLabel
%4 = OpVariable %7 Function
%5 = OpVariable %7 Function
OpReturn
OpFunctionEnd
)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
// Build the decoration manager.
context->get_decoration_mgr();
// Delete the second variable.
context->KillDef(5);
// The three decorations instructions should still be there. The first two
// should be the same, but the third should have %5 removed.
// Check the OpDecorate instruction
auto inst = context->annotation_begin();
EXPECT_EQ(inst->opcode(), SpvOpDecorate);
EXPECT_EQ(inst->GetSingleWordInOperand(0), 3);
// Check the OpDecorationGroup Instruction
++inst;
EXPECT_EQ(inst->opcode(), SpvOpDecorationGroup);
EXPECT_EQ(inst->result_id(), 3);
// Check that %5 is no longer part of the group.
++inst;
EXPECT_EQ(inst->opcode(), SpvOpGroupDecorate);
EXPECT_EQ(inst->NumInOperands(), 2);
EXPECT_EQ(inst->GetSingleWordInOperand(0), 3);
EXPECT_EQ(inst->GetSingleWordInOperand(1), 4);
// Check that we are at the end.
++inst;
EXPECT_EQ(inst, context->annotation_end());
}
TEST_F(IRContextTest, TakeNextUniqueIdIncrementing) {
const uint32_t NUM_TESTS = 1000;
IRContext localContext(SPV_ENV_UNIVERSAL_1_2, nullptr);
for (uint32_t i = 1; i < NUM_TESTS; ++i)
EXPECT_EQ(i, localContext.TakeNextUniqueId());
}
TEST_F(IRContextTest, KillGroupDecorationWitNoDecorations) {
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main"
OpExecutionMode %2 OriginUpperLeft
OpSource GLSL 430
%3 = OpDecorationGroup
OpGroupDecorate %3 %4 %5
%6 = OpTypeFloat 32
%7 = OpTypePointer Function %6
%8 = OpTypeStruct %6
%9 = OpTypeVoid
%10 = OpTypeFunction %9
%2 = OpFunction %9 None %10
%11 = OpLabel
%4 = OpVariable %7 Function
%5 = OpVariable %7 Function
OpReturn
OpFunctionEnd
)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
// Build the decoration manager.
context->get_decoration_mgr();
// Delete the second variable.
context->KillDef(5);
// The two decoration instructions should still be there. The first one
// should be the same, but the second should have %5 removed.
// Check the OpDecorationGroup Instruction
auto inst = context->annotation_begin();
EXPECT_EQ(inst->opcode(), SpvOpDecorationGroup);
EXPECT_EQ(inst->result_id(), 3);
// Check that %5 is no longer part of the group.
++inst;
EXPECT_EQ(inst->opcode(), SpvOpGroupDecorate);
EXPECT_EQ(inst->NumInOperands(), 2);
EXPECT_EQ(inst->GetSingleWordInOperand(0), 3);
EXPECT_EQ(inst->GetSingleWordInOperand(1), 4);
// Check that we are at the end.
++inst;
EXPECT_EQ(inst, context->annotation_end());
}
TEST_F(IRContextTest, KillDecorationGroup) {
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main"
OpExecutionMode %2 OriginUpperLeft
OpSource GLSL 430
%3 = OpDecorationGroup
OpGroupDecorate %3 %4 %5
%6 = OpTypeFloat 32
%7 = OpTypePointer Function %6
%8 = OpTypeStruct %6
%9 = OpTypeVoid
%10 = OpTypeFunction %9
%2 = OpFunction %9 None %10
%11 = OpLabel
%4 = OpVariable %7 Function
%5 = OpVariable %7 Function
OpReturn
OpFunctionEnd
)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
// Build the decoration manager.
context->get_decoration_mgr();
// Delete the second variable.
context->KillDef(3);
// Check the OpDecorationGroup Instruction is still there.
EXPECT_TRUE(context->annotations().empty());
}
TEST_F(IRContextTest, KillFunctionFromDebugFunction) {
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "OpenCL.DebugInfo.100"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main"
OpExecutionMode %2 OriginUpperLeft
%3 = OpString "ps.hlsl"
%4 = OpString "foo"
OpSource HLSL 600
%void = OpTypeVoid
%6 = OpTypeFunction %void
%7 = OpExtInst %void %1 DebugSource %3
%8 = OpExtInst %void %1 DebugCompilationUnit 1 4 %7 HLSL
%9 = OpExtInst %void %1 DebugTypeFunction FlagIsProtected|FlagIsPrivate %void
%10 = OpExtInst %void %1 DebugFunction %4 %9 %7 1 1 %8 %4 FlagIsProtected|FlagIsPrivate 1 %11
%2 = OpFunction %void None %6
%12 = OpLabel
OpReturn
OpFunctionEnd
%11 = OpFunction %void None %6
%13 = OpLabel
OpReturn
OpFunctionEnd
)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
// Delete the second variable.
context->KillDef(11);
// Get DebugInfoNone id.
uint32_t debug_info_none_id = 0;
for (auto it = context->ext_inst_debuginfo_begin();
it != context->ext_inst_debuginfo_end(); ++it) {
if (it->GetOpenCL100DebugOpcode() == OpenCLDebugInfo100DebugInfoNone) {
debug_info_none_id = it->result_id();
}
}
EXPECT_NE(0, debug_info_none_id);
// Check the Function operand of DebugFunction is DebugInfoNone.
const uint32_t kDebugFunctionOperandFunctionIndex = 13;
bool checked = false;
for (auto it = context->ext_inst_debuginfo_begin();
it != context->ext_inst_debuginfo_end(); ++it) {
if (it->GetOpenCL100DebugOpcode() == OpenCLDebugInfo100DebugFunction) {
EXPECT_FALSE(checked);
EXPECT_EQ(it->GetOperand(kDebugFunctionOperandFunctionIndex).words[0],
debug_info_none_id);
checked = true;
}
}
EXPECT_TRUE(checked);
}
TEST_F(IRContextTest, KillVariableFromDebugGlobalVariable) {
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "OpenCL.DebugInfo.100"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main"
OpExecutionMode %2 OriginUpperLeft
%3 = OpString "ps.hlsl"
%4 = OpString "foo"
%5 = OpString "int"
OpSource HLSL 600
%uint = OpTypeInt 32 0
%uint_32 = OpConstant %uint 32
%_ptr_Private_uint = OpTypePointer Private %uint
%void = OpTypeVoid
%10 = OpTypeFunction %void
%11 = OpVariable %_ptr_Private_uint Private
%12 = OpExtInst %void %1 DebugSource %3
%13 = OpExtInst %void %1 DebugCompilationUnit 1 4 %12 HLSL
%14 = OpExtInst %void %1 DebugTypeBasic %5 %uint_32 Signed
%15 = OpExtInst %void %1 DebugGlobalVariable %4 %14 %12 1 12 %13 %4 %11 FlagIsDefinition
%2 = OpFunction %void None %10
%16 = OpLabel
OpReturn
OpFunctionEnd
)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
// Delete the second variable.
context->KillDef(11);
// Get DebugInfoNone id.
uint32_t debug_info_none_id = 0;
for (auto it = context->ext_inst_debuginfo_begin();
it != context->ext_inst_debuginfo_end(); ++it) {
if (it->GetOpenCL100DebugOpcode() == OpenCLDebugInfo100DebugInfoNone) {
debug_info_none_id = it->result_id();
}
}
EXPECT_NE(0, debug_info_none_id);
// Check the Function operand of DebugFunction is DebugInfoNone.
const uint32_t kDebugGlobalVariableOperandVariableIndex = 11;
bool checked = false;
for (auto it = context->ext_inst_debuginfo_begin();
it != context->ext_inst_debuginfo_end(); ++it) {
if (it->GetOpenCL100DebugOpcode() ==
OpenCLDebugInfo100DebugGlobalVariable) {
EXPECT_FALSE(checked);
EXPECT_EQ(
it->GetOperand(kDebugGlobalVariableOperandVariableIndex).words[0],
debug_info_none_id);
checked = true;
}
}
EXPECT_TRUE(checked);
}
TEST_F(IRContextTest, BasicVisitFromEntryPoint) {
// Make sure we visit the entry point, and the function it calls.
// Do not visit Dead or Exported.
const std::string text = R"(
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %10 "main"
OpName %10 "main"
OpName %Dead "Dead"
OpName %11 "Constant"
OpName %ExportedFunc "ExportedFunc"
OpDecorate %ExportedFunc LinkageAttributes "ExportedFunc" Export
%void = OpTypeVoid
%6 = OpTypeFunction %void
%10 = OpFunction %void None %6
%14 = OpLabel
%15 = OpFunctionCall %void %11
%16 = OpFunctionCall %void %11
OpReturn
OpFunctionEnd
%11 = OpFunction %void None %6
%18 = OpLabel
OpReturn
OpFunctionEnd
%Dead = OpFunction %void None %6
%19 = OpLabel
OpReturn
OpFunctionEnd
%ExportedFunc = OpFunction %void None %7
%20 = OpLabel
%21 = OpFunctionCall %void %11
OpReturn
OpFunctionEnd
)";
// clang-format on
std::unique_ptr<IRContext> localContext =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
EXPECT_NE(nullptr, localContext) << "Assembling failed for shader:\n"
<< text << std::endl;
std::vector<uint32_t> processed;
Pass::ProcessFunction mark_visited = [&processed](Function* fp) {
processed.push_back(fp->result_id());
return false;
};
localContext->ProcessEntryPointCallTree(mark_visited);
EXPECT_THAT(processed, UnorderedElementsAre(10, 11));
}
TEST_F(IRContextTest, BasicVisitReachable) {
// Make sure we visit the entry point, exported function, and the function
// they call. Do not visit Dead.
const std::string text = R"(
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %10 "main"
OpName %10 "main"
OpName %Dead "Dead"
OpName %11 "Constant"
OpName %12 "ExportedFunc"
OpName %13 "Constant2"
OpDecorate %12 LinkageAttributes "ExportedFunc" Export
%void = OpTypeVoid
%6 = OpTypeFunction %void
%10 = OpFunction %void None %6
%14 = OpLabel
%15 = OpFunctionCall %void %11
%16 = OpFunctionCall %void %11
OpReturn
OpFunctionEnd
%11 = OpFunction %void None %6
%18 = OpLabel
OpReturn
OpFunctionEnd
%Dead = OpFunction %void None %6
%19 = OpLabel
OpReturn
OpFunctionEnd
%12 = OpFunction %void None %6
%20 = OpLabel
%21 = OpFunctionCall %void %13
OpReturn
OpFunctionEnd
%13 = OpFunction %void None %6
%22 = OpLabel
OpReturn
OpFunctionEnd
)";
// clang-format on
std::unique_ptr<IRContext> localContext =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
EXPECT_NE(nullptr, localContext) << "Assembling failed for shader:\n"
<< text << std::endl;
std::vector<uint32_t> processed;
Pass::ProcessFunction mark_visited = [&processed](Function* fp) {
processed.push_back(fp->result_id());
return false;
};
localContext->ProcessReachableCallTree(mark_visited);
EXPECT_THAT(processed, UnorderedElementsAre(10, 11, 12, 13));
}
TEST_F(IRContextTest, BasicVisitOnlyOnce) {
// Make sure we visit %12 only once, even if it is called from two different
// functions.
const std::string text = R"(
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %10 "main"
OpName %10 "main"
OpName %Dead "Dead"
OpName %11 "Constant"
OpName %12 "ExportedFunc"
OpDecorate %12 LinkageAttributes "ExportedFunc" Export
%void = OpTypeVoid
%6 = OpTypeFunction %void
%10 = OpFunction %void None %6
%14 = OpLabel
%15 = OpFunctionCall %void %11
%16 = OpFunctionCall %void %12
OpReturn
OpFunctionEnd
%11 = OpFunction %void None %6
%18 = OpLabel
%19 = OpFunctionCall %void %12
OpReturn
OpFunctionEnd
%Dead = OpFunction %void None %6
%20 = OpLabel
OpReturn
OpFunctionEnd
%12 = OpFunction %void None %6
%21 = OpLabel
OpReturn
OpFunctionEnd
)";
// clang-format on
std::unique_ptr<IRContext> localContext =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
EXPECT_NE(nullptr, localContext) << "Assembling failed for shader:\n"
<< text << std::endl;
std::vector<uint32_t> processed;
Pass::ProcessFunction mark_visited = [&processed](Function* fp) {
processed.push_back(fp->result_id());
return false;
};
localContext->ProcessReachableCallTree(mark_visited);
EXPECT_THAT(processed, UnorderedElementsAre(10, 11, 12));
}
TEST_F(IRContextTest, BasicDontVisitExportedVariable) {
// Make sure we only visit functions and not exported variables.
const std::string text = R"(
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %10 "main"
OpExecutionMode %10 OriginUpperLeft
OpSource GLSL 150
OpName %10 "main"
OpName %12 "export_var"
OpDecorate %12 LinkageAttributes "export_var" Export
%void = OpTypeVoid
%6 = OpTypeFunction %void
%float = OpTypeFloat 32
%float_1 = OpConstant %float 1
%12 = OpVariable %float Output
%10 = OpFunction %void None %6
%14 = OpLabel
OpStore %12 %float_1
OpReturn
OpFunctionEnd
)";
// clang-format on
std::unique_ptr<IRContext> localContext =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
EXPECT_NE(nullptr, localContext) << "Assembling failed for shader:\n"
<< text << std::endl;
std::vector<uint32_t> processed;
Pass::ProcessFunction mark_visited = [&processed](Function* fp) {
processed.push_back(fp->result_id());
return false;
};
localContext->ProcessReachableCallTree(mark_visited);
EXPECT_THAT(processed, UnorderedElementsAre(10));
}
TEST_F(IRContextTest, IdBoundTestAtLimit) {
const std::string text = R"(
OpCapability Shader
OpCapability Linkage
OpMemoryModel Logical GLSL450
%1 = OpTypeVoid
%2 = OpTypeFunction %1
%3 = OpFunction %1 None %2
%4 = OpLabel
OpReturn
OpFunctionEnd)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
uint32_t current_bound = context->module()->id_bound();
context->set_max_id_bound(current_bound);
uint32_t next_id_bound = context->TakeNextId();
EXPECT_EQ(next_id_bound, 0);
EXPECT_EQ(current_bound, context->module()->id_bound());
next_id_bound = context->TakeNextId();
EXPECT_EQ(next_id_bound, 0);
}
TEST_F(IRContextTest, IdBoundTestBelowLimit) {
const std::string text = R"(
OpCapability Shader
OpCapability Linkage
OpMemoryModel Logical GLSL450
%1 = OpTypeVoid
%2 = OpTypeFunction %1
%3 = OpFunction %1 None %2
%4 = OpLabel
OpReturn
OpFunctionEnd)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
uint32_t current_bound = context->module()->id_bound();
context->set_max_id_bound(current_bound + 100);
uint32_t next_id_bound = context->TakeNextId();
EXPECT_EQ(next_id_bound, current_bound);
EXPECT_EQ(current_bound + 1, context->module()->id_bound());
next_id_bound = context->TakeNextId();
EXPECT_EQ(next_id_bound, current_bound + 1);
}
TEST_F(IRContextTest, IdBoundTestNearLimit) {
const std::string text = R"(
OpCapability Shader
OpCapability Linkage
OpMemoryModel Logical GLSL450
%1 = OpTypeVoid
%2 = OpTypeFunction %1
%3 = OpFunction %1 None %2
%4 = OpLabel
OpReturn
OpFunctionEnd)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
uint32_t current_bound = context->module()->id_bound();
context->set_max_id_bound(current_bound + 1);
uint32_t next_id_bound = context->TakeNextId();
EXPECT_EQ(next_id_bound, current_bound);
EXPECT_EQ(current_bound + 1, context->module()->id_bound());
next_id_bound = context->TakeNextId();
EXPECT_EQ(next_id_bound, 0);
}
TEST_F(IRContextTest, IdBoundTestUIntMax) {
const std::string text = R"(
OpCapability Shader
OpCapability Linkage
OpMemoryModel Logical GLSL450
%1 = OpTypeVoid
%2 = OpTypeFunction %1
%3 = OpFunction %1 None %2
%4294967294 = OpLabel ; ID is UINT_MAX-1
OpReturn
OpFunctionEnd)";
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
uint32_t current_bound = context->module()->id_bound();
// Expecting |BuildModule| to preserve the numeric ids.
EXPECT_EQ(current_bound, std::numeric_limits<uint32_t>::max());
context->set_max_id_bound(current_bound);
uint32_t next_id_bound = context->TakeNextId();
EXPECT_EQ(next_id_bound, 0);
EXPECT_EQ(current_bound, context->module()->id_bound());
}
TEST_F(IRContextTest, CfgAndDomAnalysis) {
const std::string text = R"(
OpCapability Shader
OpCapability Linkage
OpMemoryModel Logical GLSL450
%1 = OpTypeVoid
%2 = OpTypeFunction %1
%3 = OpFunction %1 None %2
%4 = OpLabel
OpReturn
OpFunctionEnd)";
std::unique_ptr<IRContext> ctx =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
// Building the dominator analysis should build the CFG.
ASSERT_TRUE(ctx->module()->begin() != ctx->module()->end());
ctx->GetDominatorAnalysis(&*ctx->module()->begin());
EXPECT_TRUE(ctx->AreAnalysesValid(IRContext::kAnalysisCFG));
EXPECT_TRUE(ctx->AreAnalysesValid(IRContext::kAnalysisDominatorAnalysis));
// Invalidating the CFG analysis should invalidate the dominator analysis.
ctx->InvalidateAnalyses(IRContext::kAnalysisCFG);
EXPECT_FALSE(ctx->AreAnalysesValid(IRContext::kAnalysisCFG));
EXPECT_FALSE(ctx->AreAnalysesValid(IRContext::kAnalysisDominatorAnalysis));
}
TEST_F(IRContextTest, AsanErrorTest) {
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main"
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpName %4 "main"
OpName %8 "x"
OpName %10 "y"
OpDecorate %8 RelaxedPrecision
OpDecorate %10 RelaxedPrecision
OpDecorate %11 RelaxedPrecision
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpConstant %6 1
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
OpStore %8 %9
%11 = OpLoad %6 %8
OpBranch %20
%20 = OpLabel
%21 = OpPhi %6 %11 %5
OpStore %10 %21
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(
env, consumer, shader, SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
opt::Function* fun =
context->cfg()->block(5)->GetParent(); // Computes the CFG analysis
opt::DominatorAnalysis* dom = nullptr;
dom = context->GetDominatorAnalysis(fun); // Computes the dominator analysis,
// which depends on the CFG
// analysis
context->InvalidateAnalysesExceptFor(
opt::IRContext::Analysis::kAnalysisDominatorAnalysis); // Invalidates the
// CFG analysis
dom = context->GetDominatorAnalysis(
fun); // Recompute the CFG analysis because the Dominator tree uses it.
auto bb = dom->ImmediateDominator(5);
std::cout
<< bb->id(); // Make sure asan does not complain about use after free.
}
TEST_F(IRContextTest, DebugInstructionReplaceSingleUse) {
const std::string text = R"(
OpCapability Shader
OpCapability Linkage
%1 = OpExtInstImport "OpenCL.DebugInfo.100"
OpMemoryModel Logical GLSL450
%2 = OpString "test"
%3 = OpTypeVoid
%4 = OpTypeFunction %3
%5 = OpTypeFloat 32
%6 = OpTypePointer Function %5
%7 = OpConstant %5 0
%8 = OpTypeInt 32 0
%9 = OpConstant %8 32
%10 = OpExtInst %3 %1 DebugExpression
%11 = OpExtInst %3 %1 DebugSource %2
%12 = OpExtInst %3 %1 DebugCompilationUnit 1 4 %11 HLSL
%13 = OpExtInst %3 %1 DebugTypeFunction FlagIsProtected|FlagIsPrivate %3
%14 = OpExtInst %3 %1 DebugFunction %2 %13 %11 0 0 %12 %2 FlagIsProtected|FlagIsPrivate 0 %17
%15 = OpExtInst %3 %1 DebugTypeBasic %2 %9 Float
%16 = OpExtInst %3 %1 DebugLocalVariable %2 %15 %11 0 0 %14 FlagIsLocal
%17 = OpFunction %3 None %4
%18 = OpLabel
%19 = OpExtInst %3 %1 DebugScope %14
%20 = OpVariable %6 Function
%26 = OpVariable %6 Function
OpBranch %21
%21 = OpLabel
%22 = OpPhi %5 %7 %18
OpBranch %23
%23 = OpLabel
OpLine %2 0 0
OpStore %20 %7
%24 = OpExtInst %3 %1 DebugValue %16 %22 %10
%25 = OpExtInst %3 %1 DebugDeclare %16 %26 %10
OpReturn
OpFunctionEnd)";
std::unique_ptr<IRContext> ctx =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
ctx->BuildInvalidAnalyses(IRContext::kAnalysisDebugInfo);
NoopPassPreservesAll pass(Pass::Status::SuccessWithChange);
pass.Run(ctx.get());
EXPECT_TRUE(ctx->AreAnalysesValid(IRContext::kAnalysisDebugInfo));
auto* dbg_value = ctx->get_def_use_mgr()->GetDef(24);
EXPECT_TRUE(dbg_value->GetSingleWordOperand(kDebugValueOperandValueIndex) ==
22);
EXPECT_TRUE(ctx->ReplaceAllUsesWith(22, 7));
dbg_value = ctx->get_def_use_mgr()->GetDef(24);
EXPECT_TRUE(dbg_value->GetSingleWordOperand(kDebugValueOperandValueIndex) ==
7);
auto* dbg_decl = ctx->get_def_use_mgr()->GetDef(25);
EXPECT_TRUE(
dbg_decl->GetSingleWordOperand(kDebugDeclareOperandVariableIndex) == 26);
EXPECT_TRUE(ctx->ReplaceAllUsesWith(26, 20));
dbg_decl = ctx->get_def_use_mgr()->GetDef(25);
EXPECT_TRUE(
dbg_decl->GetSingleWordOperand(kDebugDeclareOperandVariableIndex) == 20);
}
TEST_F(IRContextTest, DebugInstructionReplaceAllUses) {
const std::string text = R"(
OpCapability Shader
OpCapability Linkage
%1 = OpExtInstImport "OpenCL.DebugInfo.100"
OpMemoryModel Logical GLSL450
%2 = OpString "test"
%3 = OpTypeVoid
%4 = OpTypeFunction %3
%5 = OpTypeFloat 32
%6 = OpTypePointer Function %5
%7 = OpConstant %5 0
%8 = OpTypeInt 32 0
%9 = OpConstant %8 32
%10 = OpExtInst %3 %1 DebugExpression
%11 = OpExtInst %3 %1 DebugSource %2
%12 = OpExtInst %3 %1 DebugCompilationUnit 1 4 %11 HLSL
%13 = OpExtInst %3 %1 DebugTypeFunction FlagIsProtected|FlagIsPrivate %3
%14 = OpExtInst %3 %1 DebugFunction %2 %13 %11 0 0 %12 %2 FlagIsProtected|FlagIsPrivate 0 %17
%15 = OpExtInst %3 %1 DebugTypeBasic %2 %9 Float
%16 = OpExtInst %3 %1 DebugLocalVariable %2 %15 %11 0 0 %14 FlagIsLocal
%27 = OpExtInst %3 %1 DebugLocalVariable %2 %15 %11 1 0 %14 FlagIsLocal
%17 = OpFunction %3 None %4
%18 = OpLabel
%19 = OpExtInst %3 %1 DebugScope %14
%20 = OpVariable %6 Function
%26 = OpVariable %6 Function
OpBranch %21
%21 = OpLabel
%22 = OpPhi %5 %7 %18
OpBranch %23
%23 = OpLabel
OpLine %2 0 0
OpStore %20 %7
%24 = OpExtInst %3 %1 DebugValue %16 %22 %10
%25 = OpExtInst %3 %1 DebugDeclare %16 %26 %10
%28 = OpExtInst %3 %1 DebugValue %27 %22 %10
%29 = OpExtInst %3 %1 DebugDeclare %27 %26 %10
OpReturn
OpFunctionEnd)";
std::unique_ptr<IRContext> ctx =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
ctx->BuildInvalidAnalyses(IRContext::kAnalysisDebugInfo);
NoopPassPreservesAll pass(Pass::Status::SuccessWithChange);
pass.Run(ctx.get());
EXPECT_TRUE(ctx->AreAnalysesValid(IRContext::kAnalysisDebugInfo));
auto* dbg_value0 = ctx->get_def_use_mgr()->GetDef(24);
auto* dbg_value1 = ctx->get_def_use_mgr()->GetDef(28);
EXPECT_TRUE(dbg_value0->GetSingleWordOperand(kDebugValueOperandValueIndex) ==
22);
EXPECT_TRUE(dbg_value1->GetSingleWordOperand(kDebugValueOperandValueIndex) ==
22);
EXPECT_TRUE(ctx->ReplaceAllUsesWith(22, 7));
dbg_value0 = ctx->get_def_use_mgr()->GetDef(24);
dbg_value1 = ctx->get_def_use_mgr()->GetDef(28);
EXPECT_TRUE(dbg_value0->GetSingleWordOperand(kDebugValueOperandValueIndex) ==
7);
EXPECT_TRUE(dbg_value1->GetSingleWordOperand(kDebugValueOperandValueIndex) ==
7);
auto* dbg_decl0 = ctx->get_def_use_mgr()->GetDef(25);
auto* dbg_decl1 = ctx->get_def_use_mgr()->GetDef(29);
EXPECT_TRUE(
dbg_decl0->GetSingleWordOperand(kDebugDeclareOperandVariableIndex) == 26);
EXPECT_TRUE(
dbg_decl1->GetSingleWordOperand(kDebugDeclareOperandVariableIndex) == 26);
EXPECT_TRUE(ctx->ReplaceAllUsesWith(26, 20));
dbg_decl0 = ctx->get_def_use_mgr()->GetDef(25);
dbg_decl1 = ctx->get_def_use_mgr()->GetDef(29);
EXPECT_TRUE(
dbg_decl0->GetSingleWordOperand(kDebugDeclareOperandVariableIndex) == 20);
EXPECT_TRUE(
dbg_decl1->GetSingleWordOperand(kDebugDeclareOperandVariableIndex) == 20);
}
TEST_F(IRContextTest, DebugInstructionReplaceDebugScopeAndDebugInlinedAt) {
const std::string text = R"(
OpCapability Shader
OpCapability Linkage
%1 = OpExtInstImport "OpenCL.DebugInfo.100"
OpMemoryModel Logical GLSL450
%2 = OpString "test"
%3 = OpTypeVoid
%4 = OpTypeFunction %3
%5 = OpTypeFloat 32
%6 = OpTypePointer Function %5
%7 = OpConstant %5 0
%8 = OpTypeInt 32 0
%9 = OpConstant %8 32
%10 = OpExtInst %3 %1 DebugExpression
%11 = OpExtInst %3 %1 DebugSource %2
%12 = OpExtInst %3 %1 DebugCompilationUnit 1 4 %11 HLSL
%13 = OpExtInst %3 %1 DebugTypeFunction FlagIsProtected|FlagIsPrivate %3
%14 = OpExtInst %3 %1 DebugFunction %2 %13 %11 0 0 %12 %2 FlagIsProtected|FlagIsPrivate 0 %17
%15 = OpExtInst %3 %1 DebugInfoNone
%16 = OpExtInst %3 %1 DebugFunction %2 %13 %11 10 10 %12 %2 FlagIsProtected|FlagIsPrivate 0 %15
%25 = OpExtInst %3 %1 DebugInlinedAt 0 %14
%26 = OpExtInst %3 %1 DebugInlinedAt 2 %14
%17 = OpFunction %3 None %4
%18 = OpLabel
%19 = OpExtInst %3 %1 DebugScope %14
%20 = OpVariable %6 Function
OpBranch %21
%21 = OpLabel
%24 = OpExtInst %3 %1 DebugScope %16
%22 = OpPhi %5 %7 %18
OpBranch %23
%23 = OpLabel
%27 = OpExtInst %3 %1 DebugScope %16 %25
OpLine %2 0 0
%28 = OpFAdd %5 %7 %7
OpStore %20 %28
OpReturn
OpFunctionEnd)";
std::unique_ptr<IRContext> ctx =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
ctx->BuildInvalidAnalyses(IRContext::kAnalysisDebugInfo);
NoopPassPreservesAll pass(Pass::Status::SuccessWithChange);
pass.Run(ctx.get());
EXPECT_TRUE(ctx->AreAnalysesValid(IRContext::kAnalysisDebugInfo));
auto* inst0 = ctx->get_def_use_mgr()->GetDef(20);
auto* inst1 = ctx->get_def_use_mgr()->GetDef(22);
auto* inst2 = ctx->get_def_use_mgr()->GetDef(28);
EXPECT_EQ(inst0->GetDebugScope().GetLexicalScope(), 14);
EXPECT_EQ(inst1->GetDebugScope().GetLexicalScope(), 16);
EXPECT_EQ(inst2->GetDebugScope().GetLexicalScope(), 16);
EXPECT_EQ(inst2->GetDebugInlinedAt(), 25);
EXPECT_TRUE(ctx->ReplaceAllUsesWith(14, 12));
EXPECT_TRUE(ctx->ReplaceAllUsesWith(16, 14));
EXPECT_TRUE(ctx->ReplaceAllUsesWith(25, 26));
EXPECT_EQ(inst0->GetDebugScope().GetLexicalScope(), 12);
EXPECT_EQ(inst1->GetDebugScope().GetLexicalScope(), 14);
EXPECT_EQ(inst2->GetDebugScope().GetLexicalScope(), 14);
EXPECT_EQ(inst2->GetDebugInlinedAt(), 26);
}
TEST_F(IRContextTest, AddDebugValueAfterReplaceUse) {
const std::string text = R"(
OpCapability Shader
OpCapability Linkage
%1 = OpExtInstImport "OpenCL.DebugInfo.100"
OpMemoryModel Logical GLSL450
%2 = OpString "test"
%3 = OpTypeVoid
%4 = OpTypeFunction %3
%5 = OpTypeFloat 32
%6 = OpTypePointer Function %5
%7 = OpConstant %5 0
%8 = OpTypeInt 32 0
%9 = OpConstant %8 32
%10 = OpExtInst %3 %1 DebugExpression
%11 = OpExtInst %3 %1 DebugSource %2
%12 = OpExtInst %3 %1 DebugCompilationUnit 1 4 %11 HLSL
%13 = OpExtInst %3 %1 DebugTypeFunction FlagIsProtected|FlagIsPrivate %3
%14 = OpExtInst %3 %1 DebugFunction %2 %13 %11 0 0 %12 %2 FlagIsProtected|FlagIsPrivate 0 %17
%15 = OpExtInst %3 %1 DebugTypeBasic %2 %9 Float
%16 = OpExtInst %3 %1 DebugLocalVariable %2 %15 %11 0 0 %14 FlagIsLocal
%17 = OpFunction %3 None %4
%18 = OpLabel
%19 = OpExtInst %3 %1 DebugScope %14
%20 = OpVariable %6 Function
%26 = OpVariable %6 Function
OpBranch %21
%21 = OpLabel
%27 = OpExtInst %3 %1 DebugScope %14
%22 = OpPhi %5 %7 %18
OpBranch %23
%23 = OpLabel
%28 = OpExtInst %3 %1 DebugScope %14
OpLine %2 0 0
OpStore %20 %7
%24 = OpExtInst %3 %1 DebugValue %16 %22 %10
%25 = OpExtInst %3 %1 DebugDeclare %16 %26 %10
OpReturn
OpFunctionEnd)";
std::unique_ptr<IRContext> ctx =
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
ctx->BuildInvalidAnalyses(IRContext::kAnalysisDebugInfo);
NoopPassPreservesAll pass(Pass::Status::SuccessWithChange);
pass.Run(ctx.get());
EXPECT_TRUE(ctx->AreAnalysesValid(IRContext::kAnalysisDebugInfo));
// Replace all uses of result it '26' with '20'
auto* dbg_decl = ctx->get_def_use_mgr()->GetDef(25);
EXPECT_EQ(dbg_decl->GetSingleWordOperand(kDebugDeclareOperandVariableIndex),
26);
EXPECT_TRUE(ctx->ReplaceAllUsesWith(26, 20));
dbg_decl = ctx->get_def_use_mgr()->GetDef(25);
EXPECT_EQ(dbg_decl->GetSingleWordOperand(kDebugDeclareOperandVariableIndex),
20);
// No DebugValue should be added because result id '26' is not used for
// DebugDeclare.
ctx->get_debug_info_mgr()->AddDebugValueIfVarDeclIsVisible(dbg_decl, 26, 22,
dbg_decl, nullptr);
EXPECT_EQ(dbg_decl->NextNode()->opcode(), SpvOpReturn);
// DebugValue should be added because result id '20' is used for DebugDeclare.
ctx->get_debug_info_mgr()->AddDebugValueIfVarDeclIsVisible(dbg_decl, 20, 22,
dbg_decl, nullptr);
EXPECT_EQ(dbg_decl->NextNode()->GetOpenCL100DebugOpcode(),
OpenCLDebugInfo100DebugValue);
// Replace all uses of result it '20' with '26'
EXPECT_EQ(dbg_decl->GetSingleWordOperand(kDebugDeclareOperandVariableIndex),
20);
EXPECT_TRUE(ctx->ReplaceAllUsesWith(20, 26));
EXPECT_EQ(dbg_decl->GetSingleWordOperand(kDebugDeclareOperandVariableIndex),
26);
// No DebugValue should be added because result id '20' is not used for
// DebugDeclare.
ctx->get_debug_info_mgr()->AddDebugValueIfVarDeclIsVisible(dbg_decl, 20, 7,
dbg_decl, nullptr);
Instruction* dbg_value = dbg_decl->NextNode();
EXPECT_EQ(dbg_value->GetOpenCL100DebugOpcode(), OpenCLDebugInfo100DebugValue);
EXPECT_EQ(dbg_value->GetSingleWordOperand(kDebugValueOperandValueIndex), 22);
// DebugValue should be added because result id '26' is used for DebugDeclare.
ctx->get_debug_info_mgr()->AddDebugValueIfVarDeclIsVisible(dbg_decl, 26, 7,
dbg_decl, nullptr);
dbg_value = dbg_decl->NextNode();
EXPECT_EQ(dbg_value->GetOpenCL100DebugOpcode(), OpenCLDebugInfo100DebugValue);
EXPECT_EQ(dbg_value->GetSingleWordOperand(kDebugValueOperandValueIndex), 7);
}
} // namespace
} // namespace opt
} // namespace spvtools
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