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// Copyright 2023 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "src/tint/lang/core/ir/block.h"
#include "src/tint/lang/core/ir/ir_helper_test.h"
namespace tint::core::ir {
namespace {
using namespace tint::core::number_suffixes; // NOLINT
using IR_BlockTest = IRTestHelper;
TEST_F(IR_BlockTest, Terminator_Empty) {
auto* blk = b.Block();
EXPECT_EQ(blk->Terminator(), nullptr);
}
TEST_F(IR_BlockTest, Terminator_None) {
auto* blk = b.Block();
blk->Append(b.Add(mod.Types().i32(), 1_u, 2_u));
EXPECT_EQ(blk->Terminator(), nullptr);
}
TEST_F(IR_BlockTest, Terminator_BreakIf) {
auto* blk = b.Block();
auto* loop = b.Loop();
blk->Append(b.BreakIf(loop, true));
EXPECT_NE(blk->Terminator(), nullptr);
}
TEST_F(IR_BlockTest, Terminator_Continue) {
auto* blk = b.Block();
auto* loop = b.Loop();
blk->Append(b.Continue(loop));
EXPECT_NE(blk->Terminator(), nullptr);
}
TEST_F(IR_BlockTest, Terminator_ExitIf) {
auto* blk = b.Block();
auto* if_ = b.If(true);
blk->Append(b.ExitIf(if_));
EXPECT_NE(blk->Terminator(), nullptr);
}
TEST_F(IR_BlockTest, Terminator_ExitLoop) {
auto* blk = b.Block();
auto* loop = b.Loop();
blk->Append(b.ExitLoop(loop));
EXPECT_NE(blk->Terminator(), nullptr);
}
TEST_F(IR_BlockTest, Terminator_ExitSwitch) {
auto* blk = b.Block();
auto* s = b.Switch(1_u);
blk->Append(b.ExitSwitch(s));
EXPECT_NE(blk->Terminator(), nullptr);
}
TEST_F(IR_BlockTest, Terminator_NextIteration) {
auto* blk = b.Block();
auto* loop = b.Loop();
blk->Append(b.NextIteration(loop));
EXPECT_NE(blk->Terminator(), nullptr);
}
TEST_F(IR_BlockTest, Terminator_Return) {
auto* f = b.Function("myFunc", mod.Types().void_());
auto* blk = b.Block();
blk->Append(b.Return(f));
EXPECT_NE(blk->Terminator(), nullptr);
}
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());
}
} // namespace
} // namespace tint::core::ir