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// Copyright 2023 The Tint Authors.
//
// 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 "src/tint/ir/block.h"
#include "gtest/gtest-spi.h"
#include "src/tint/ir/ir_test_helper.h"
namespace tint::ir {
namespace {
using namespace tint::number_suffixes; // NOLINT
using IR_BlockTest = IRTestHelper;
TEST_F(IR_BlockTest, HasBranchTarget_Empty) {
auto* blk = b.Block();
EXPECT_FALSE(blk->HasBranchTarget());
}
TEST_F(IR_BlockTest, HasBranchTarget_NoBranch) {
auto* blk = b.Block();
blk->Append(b.Add(mod.Types().i32(), 1_u, 2_u));
EXPECT_FALSE(blk->HasBranchTarget());
}
TEST_F(IR_BlockTest, HasBranchTarget_BreakIf) {
auto* blk = b.Block();
auto* loop = b.Loop();
blk->Append(b.BreakIf(true, loop));
EXPECT_TRUE(blk->HasBranchTarget());
}
TEST_F(IR_BlockTest, HasBranchTarget_Continue) {
auto* blk = b.Block();
auto* loop = b.Loop();
blk->Append(b.Continue(loop));
EXPECT_TRUE(blk->HasBranchTarget());
}
TEST_F(IR_BlockTest, HasBranchTarget_ExitIf) {
auto* blk = b.Block();
auto* if_ = b.If(true);
blk->Append(b.ExitIf(if_));
EXPECT_TRUE(blk->HasBranchTarget());
}
TEST_F(IR_BlockTest, HasBranchTarget_ExitLoop) {
auto* blk = b.Block();
auto* loop = b.Loop();
blk->Append(b.ExitLoop(loop));
EXPECT_TRUE(blk->HasBranchTarget());
}
TEST_F(IR_BlockTest, HasBranchTarget_ExitSwitch) {
auto* blk = b.Block();
auto* s = b.Switch(1_u);
blk->Append(b.ExitSwitch(s));
EXPECT_TRUE(blk->HasBranchTarget());
}
TEST_F(IR_BlockTest, HasBranchTarget_NextIteration) {
auto* blk = b.Block();
auto* loop = b.Loop();
blk->Append(b.NextIteration(loop));
EXPECT_TRUE(blk->HasBranchTarget());
}
TEST_F(IR_BlockTest, HasBranchTarget_Return) {
auto* f = b.Function("myFunc", mod.Types().void_());
auto* blk = b.Block();
blk->Append(b.Return(f));
EXPECT_TRUE(blk->HasBranchTarget());
}
TEST_F(IR_BlockTest, Append) {
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* inst3 = b.Loop();
auto* blk = b.Block();
EXPECT_EQ(blk->Append(inst1), inst1);
EXPECT_EQ(blk->Append(inst2), inst2);
EXPECT_EQ(blk->Append(inst3), inst3);
ASSERT_EQ(inst1->Block(), blk);
ASSERT_EQ(inst2->Block(), blk);
ASSERT_EQ(inst3->Block(), blk);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(3u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
inst = inst->next;
ASSERT_EQ(inst, inst3);
ASSERT_EQ(inst->prev, inst2);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, Prepend) {
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* inst3 = b.Loop();
auto* blk = b.Block();
EXPECT_EQ(blk->Prepend(inst3), inst3);
EXPECT_EQ(blk->Prepend(inst2), inst2);
EXPECT_EQ(blk->Prepend(inst1), inst1);
ASSERT_EQ(inst1->Block(), blk);
ASSERT_EQ(inst2->Block(), blk);
ASSERT_EQ(inst3->Block(), blk);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(3u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
inst = inst->next;
ASSERT_EQ(inst, inst3);
ASSERT_EQ(inst->prev, inst2);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, InsertBefore_AtStart) {
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* blk = b.Block();
blk->Append(inst2);
blk->InsertBefore(inst2, inst1);
ASSERT_EQ(inst1->Block(), blk);
ASSERT_EQ(inst2->Block(), blk);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(2u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, InsertBefore_Middle) {
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* inst3 = b.Loop();
auto* blk = b.Block();
blk->Append(inst1);
blk->Append(inst3);
blk->InsertBefore(inst3, inst2);
ASSERT_EQ(inst1->Block(), blk);
ASSERT_EQ(inst2->Block(), blk);
ASSERT_EQ(inst3->Block(), blk);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(3u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
inst = inst->next;
ASSERT_EQ(inst, inst3);
ASSERT_EQ(inst->prev, inst2);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, InsertAfter_AtEnd) {
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* blk = b.Block();
blk->Append(inst1);
blk->InsertAfter(inst1, inst2);
ASSERT_EQ(inst1->Block(), blk);
ASSERT_EQ(inst2->Block(), blk);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(2u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, InsertAfter_Middle) {
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* inst3 = b.Loop();
auto* blk = b.Block();
blk->Append(inst1);
blk->Append(inst3);
blk->InsertAfter(inst1, inst2);
ASSERT_EQ(inst1->Block(), blk);
ASSERT_EQ(inst2->Block(), blk);
ASSERT_EQ(inst3->Block(), blk);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(3u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
inst = inst->next;
ASSERT_EQ(inst, inst3);
ASSERT_EQ(inst->prev, inst2);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, Replace_Middle) {
auto* blk = b.Block();
auto* inst1 = blk->Append(b.Loop());
auto* inst4 = blk->Append(b.Loop());
auto* inst3 = blk->Append(b.Loop());
auto* inst2 = b.Loop();
blk->Replace(inst4, inst2);
ASSERT_EQ(inst1->Block(), blk);
ASSERT_EQ(inst2->Block(), blk);
ASSERT_EQ(inst3->Block(), blk);
EXPECT_EQ(inst4->Block(), nullptr);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(3u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
inst = inst->next;
ASSERT_EQ(inst, inst3);
ASSERT_EQ(inst->prev, inst2);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, Replace_Start) {
auto* blk = b.Block();
auto* inst4 = blk->Append(b.Loop());
auto* inst2 = blk->Append(b.Loop());
auto* inst1 = b.Loop();
blk->Replace(inst4, inst1);
ASSERT_EQ(inst1->Block(), blk);
ASSERT_EQ(inst2->Block(), blk);
EXPECT_EQ(inst4->Block(), nullptr);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(2u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, Replace_End) {
auto* blk = b.Block();
auto* inst1 = blk->Append(b.Loop());
auto* inst4 = blk->Append(b.Loop());
auto* inst2 = b.Loop();
blk->Replace(inst4, inst2);
ASSERT_EQ(inst1->Block(), blk);
ASSERT_EQ(inst2->Block(), blk);
EXPECT_EQ(inst4->Block(), nullptr);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(2u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, Replace_OnlyNode) {
auto* blk = b.Block();
auto* inst4 = blk->Append(b.Loop());
auto* inst1 = b.Loop();
blk->Replace(inst4, inst1);
ASSERT_EQ(inst1->Block(), blk);
EXPECT_EQ(inst4->Block(), nullptr);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(1u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, Remove_Middle) {
auto* blk = b.Block();
auto* inst1 = blk->Append(b.Loop());
auto* inst4 = blk->Append(b.Loop());
auto* inst2 = blk->Append(b.Loop());
blk->Remove(inst4);
ASSERT_EQ(inst4->Block(), nullptr);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(2u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
inst = inst->next;
ASSERT_EQ(inst, inst2);
ASSERT_EQ(inst->prev, inst1);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, Remove_Start) {
auto* blk = b.Block();
auto* inst4 = blk->Append(b.Loop());
auto* inst1 = blk->Append(b.Loop());
blk->Remove(inst4);
ASSERT_EQ(inst4->Block(), nullptr);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(1u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, Remove_End) {
auto* blk = b.Block();
auto* inst1 = blk->Append(b.Loop());
auto* inst4 = blk->Append(b.Loop());
blk->Remove(inst4);
ASSERT_EQ(inst4->Block(), nullptr);
EXPECT_FALSE(blk->IsEmpty());
EXPECT_EQ(1u, blk->Length());
auto* inst = blk->Instructions();
ASSERT_EQ(inst, inst1);
ASSERT_EQ(inst->prev, nullptr);
ASSERT_EQ(inst->next, nullptr);
}
TEST_F(IR_BlockTest, Remove_OnlyNode) {
auto* blk = b.Block();
auto* inst4 = blk->Append(b.Loop());
blk->Remove(inst4);
ASSERT_EQ(inst4->Block(), nullptr);
EXPECT_TRUE(blk->IsEmpty());
EXPECT_EQ(0u, blk->Length());
}
TEST_F(IR_BlockTest, Fail_PrependNullptr) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* blk = b.Block();
blk->Prepend(nullptr);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_PrependAlreadyInserted) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* blk = b.Block();
blk->Prepend(inst1);
blk->Prepend(inst1);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_AppendNullptr) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* blk = b.Block();
blk->Append(nullptr);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_AppendAlreadyInserted) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* blk = b.Block();
blk->Append(inst1);
blk->Append(inst1);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_InsertBeforeNullptrInst) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* blk = b.Block();
blk->InsertBefore(nullptr, inst1);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_InsertBeforeInstNullptr) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* blk = b.Block();
blk->Append(inst1);
blk->InsertBefore(inst1, nullptr);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_InsertBeforeDifferentBlock) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* blk1 = b.Block();
auto* blk2 = b.Block();
blk2->Append(inst1);
blk1->InsertBefore(inst1, inst2);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_InsertBeforeAlreadyInserted) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* blk1 = b.Block();
blk1->Append(inst1);
blk1->Append(inst2);
blk1->InsertBefore(inst1, inst2);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_InsertAfterNullptrInst) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* blk = b.Block();
blk->InsertAfter(nullptr, inst1);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_InsertAfterInstNullptr) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* blk = b.Block();
blk->Append(inst1);
blk->InsertAfter(inst1, nullptr);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_InsertAfterDifferentBlock) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* blk1 = b.Block();
auto* blk2 = b.Block();
blk2->Append(inst1);
blk1->InsertAfter(inst1, inst2);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_InsertAfterAlreadyInserted) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* blk1 = b.Block();
blk1->Append(inst1);
blk1->Append(inst2);
blk1->InsertAfter(inst1, inst2);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_ReplaceNullptrInst) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* blk = b.Block();
blk->Replace(nullptr, inst1);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_ReplaceInstNullptr) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* blk = b.Block();
blk->Append(inst1);
blk->Replace(inst1, nullptr);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_ReplaceDifferentBlock) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* blk1 = b.Block();
auto* blk2 = b.Block();
blk2->Append(inst1);
blk1->Replace(inst1, inst2);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_ReplaceAlreadyInserted) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* inst2 = b.Loop();
auto* blk1 = b.Block();
blk1->Append(inst1);
blk1->Append(inst2);
blk1->Replace(inst1, inst2);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_RemoveNullptr) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* blk = b.Block();
blk->Remove(nullptr);
},
"internal compiler error");
}
TEST_F(IR_BlockTest, Fail_RemoveDifferentBlock) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* inst1 = b.Loop();
auto* blk1 = b.Block();
auto* blk2 = b.Block();
blk2->Append(inst1);
blk1->Remove(inst1);
},
"internal compiler error");
}
} // namespace
} // namespace tint::ir