SPIRV-Tools/test/opt/test_pass_manager.cpp
Lei Zhang 80c94a4fa8 Change the interfaces of in-memory representation to use pointers.
Previously we use vectors of objects and move semantics to handle
ownership. That approach has the flaw that inserting an object into
the middle of a vector, which may trigger a vector reallocation,
can invalidate some addresses taken from instructions.

Now the in-memory representation internally uses vector of unique
pointers to handle ownership. Since objects are explicitly heap-
allocated now, pointers to them won't be invalidated by vector
resizing anymore.
2016-08-10 12:11:33 -04:00

95 lines
3.4 KiB
C++

// Copyright (c) 2016 Google Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and/or associated documentation files (the
// "Materials"), to deal in the Materials without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
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// permit persons to whom the Materials are furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Materials.
//
// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
// https://www.khronos.org/registry/
//
// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
#include "pass_fixture.h"
namespace {
using namespace spvtools;
TEST(PassManager, Interface) {
opt::PassManager manager;
EXPECT_EQ(0u, manager.NumPasses());
manager.AddPass<opt::StripDebugInfoPass>();
EXPECT_EQ(1u, manager.NumPasses());
EXPECT_STREQ("strip-debug", manager.GetPass(0)->name());
manager.AddPass(std::unique_ptr<opt::NullPass>(new opt::NullPass));
EXPECT_EQ(2u, manager.NumPasses());
EXPECT_STREQ("strip-debug", manager.GetPass(0)->name());
EXPECT_STREQ("null", manager.GetPass(1)->name());
manager.AddPass<opt::StripDebugInfoPass>();
EXPECT_EQ(3u, manager.NumPasses());
EXPECT_STREQ("strip-debug", manager.GetPass(0)->name());
EXPECT_STREQ("null", manager.GetPass(1)->name());
EXPECT_STREQ("strip-debug", manager.GetPass(2)->name());
}
// A pass that appends an OpNop instruction to the debug section.
class AppendOpNopPass : public opt::Pass {
const char* name() const override { return "AppendOpNop"; }
bool Process(ir::Module* module) override {
std::unique_ptr<ir::Instruction> inst(new ir::Instruction());
module->AddDebugInst(std::move(inst));
return true;
}
};
// A pass that duplicates the last instruction in the debug section.
class DuplicateInstPass : public opt::Pass {
const char* name() const override { return "DuplicateInst"; }
bool Process(ir::Module* module) override {
std::unique_ptr<ir::Instruction> inst(
new ir::Instruction(*module->debugs().back()));
module->AddDebugInst(std::move(inst));
return true;
}
};
using PassManagerTest = PassTest<::testing::Test>;
TEST_F(PassManagerTest, Run) {
const std::string text = "OpMemoryModel Logical GLSL450\nOpSource ESSL 310\n";
AddPass<AppendOpNopPass>();
AddPass<AppendOpNopPass>();
RunAndCheck(text.c_str(), (text + "OpNop\nOpNop\n").c_str());
RenewPassManger();
AddPass<AppendOpNopPass>();
AddPass<DuplicateInstPass>();
RunAndCheck(text.c_str(), (text + "OpNop\nOpNop\n").c_str());
RenewPassManger();
AddPass<DuplicateInstPass>();
AddPass<AppendOpNopPass>();
RunAndCheck(text.c_str(), (text + "OpSource ESSL 310\nOpNop\n").c_str());
}
} // anonymous namespace