TheRock/rocm-libraries/shared/stinkytofu/tests/unit/asm/BasicBlockTest.cpp

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#include <gtest/gtest.h>

#include <sstream>

#include "TestHelpers.hpp"
#include "stinkytofu/core/BasicBlock.hpp"
#include "stinkytofu/core/Function.hpp"
#include "stinkytofu/hardware/ArchHelper.hpp"
#include "stinkytofu/ir/asm/StinkyAsmIR.hpp"

using namespace stinkytofu;
using namespace stinkytofu::test;

class BasicBlockTest : public ::testing::Test {
   protected:
    void SetUp() override {
        func = std::make_unique<Function>("test_func");
        setFunctionArch(*func, GfxArchID::Gfx1250);
    }

    std::unique_ptr<Function> func;
};

TEST_F(BasicBlockTest, GetParentFuncReturnsOwningFunction) {
    BasicBlock* bb = func->createBasicBlock("entry");
    EXPECT_EQ(bb->getParentFunc(), func.get());
}

TEST_F(BasicBlockTest, RemoveDetachesFromFunction) {
    BasicBlock* bb = func->createBasicBlock("entry");
    ASSERT_EQ(func->size(), 1u);
    bb->remove();
    EXPECT_EQ(func->size(), 0u);
    delete bb;
}

TEST_F(BasicBlockTest, EraseRemovesAndDeletesBlock) {
    func->createBasicBlock("bb0");
    BasicBlock* bb1 = func->createBasicBlock("bb1");
    ASSERT_EQ(func->size(), 2u);
    bb1->erase();
    EXPECT_EQ(func->size(), 1u);
}

TEST_F(BasicBlockTest, DumpLabeledBlockDoesNotCrash) {
    BasicBlock* bb = func->createBasicBlock("my_label");
    AsmIRBuilder builder(*bb, GfxArchID::Gfx1250);
    builder.create(getMCIDByUOp(GFX::s_nop, GfxArchID::Gfx1250));

    std::streambuf* old = std::cerr.rdbuf(nullptr);
    bb->dump();
    std::cerr.rdbuf(old);
}

TEST_F(BasicBlockTest, DumpUnlabeledBlockDoesNotCrash) {
    BasicBlock* bb = func->createBasicBlock("");
    std::streambuf* old = std::cerr.rdbuf(nullptr);
    bb->dump();
    std::cerr.rdbuf(old);
}

TEST_F(BasicBlockTest, DumpBlockWithSuccessorDoesNotCrash) {
    BasicBlock* bb0 = func->createBasicBlock("bb0");
    BasicBlock* bb1 = func->createBasicBlock("bb1");
    bb0->addSuccessor(bb1);

    std::streambuf* old = std::cerr.rdbuf(nullptr);
    bb0->dump();
    std::cerr.rdbuf(old);
}