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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,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// GEN_BUILD:CONDITION(tint_build_wgsl_writer)
#include <string>
#include "src/tint/lang/core/ir/disassembler.h"
#include "src/tint/lang/core/type/array.h"
#include "src/tint/lang/core/type/matrix.h"
#include "src/tint/lang/wgsl/writer/ir_to_program/ir_to_program.h"
#include "src/tint/lang/wgsl/writer/ir_to_program/ir_to_program_test.h"
#include "src/tint/lang/wgsl/writer/writer.h"
#include "src/tint/utils/text/string.h"
namespace tint::wgsl::writer {
namespace {
using namespace tint::core::number_suffixes; // NOLINT
using namespace tint::core::fluent_types; // NOLINT
using IRToProgramInliningTest = IRToProgramTest;
////////////////////////////////////////////////////////////////////////////////
// Load / Store
////////////////////////////////////////////////////////////////////////////////
TEST_F(IRToProgramInliningTest, LoadVar_ThenStoreVar_ThenUseLoad) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
b.Store(var, 2_i);
b.Return(fn, load);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
v = 1i;
let v_1 = v;
v = 2i;
return v_1;
}
)");
}
////////////////////////////////////////////////////////////////////////////////
// Binary op
////////////////////////////////////////////////////////////////////////////////
TEST_F(IRToProgramInliningTest, BinaryOpUnsequencedLHSThenUnsequencedRHS) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] {
auto* lhs = b.Add(ty.i32(), 1_i, 2_i);
auto* rhs = b.Add(ty.i32(), 3_i, 4_i);
auto* bin = b.Add(ty.i32(), lhs, rhs);
b.Return(fn_b, bin);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b() -> i32 {
return ((1i + 2i) + (3i + 4i));
}
)");
}
TEST_F(IRToProgramInliningTest, BinaryOpSequencedLHSThenUnsequencedRHS) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] {
auto* lhs = b.Call(ty.i32(), fn_a, 1_i);
auto* rhs = b.Add(ty.i32(), 2_i, 3_i);
auto* bin = b.Add(ty.i32(), lhs, rhs);
b.Return(fn_b, bin);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b() -> i32 {
return (a(1i) + (2i + 3i));
}
)");
}
TEST_F(IRToProgramInliningTest, BinaryOpUnsequencedLHSThenSequencedRHS) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] {
auto* lhs = b.Add(ty.i32(), 1_i, 2_i);
auto* rhs = b.Call(ty.i32(), fn_a, 3_i);
auto* bin = b.Add(ty.i32(), lhs, rhs);
b.Return(fn_b, bin);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b() -> i32 {
return ((1i + 2i) + a(3i));
}
)");
}
TEST_F(IRToProgramInliningTest, BinaryOpSequencedLHSThenSequencedRHS) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] {
auto* lhs = b.Call(ty.i32(), fn_a, 1_i);
auto* rhs = b.Call(ty.i32(), fn_a, 2_i);
auto* bin = b.Add(ty.i32(), lhs, rhs);
b.Return(fn_b, bin);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b() -> i32 {
return (a(1i) + a(2i));
}
)");
}
TEST_F(IRToProgramInliningTest, BinaryOpUnsequencedRHSThenUnsequencedLHS) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] {
auto* rhs = b.Add(ty.i32(), 3_i, 4_i);
auto* lhs = b.Add(ty.i32(), 1_i, 2_i);
auto* bin = b.Add(ty.i32(), lhs, rhs);
b.Return(fn_b, bin);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b() -> i32 {
return ((1i + 2i) + (3i + 4i));
}
)");
}
TEST_F(IRToProgramInliningTest, BinaryOpUnsequencedRHSThenSequencedLHS) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] {
auto* rhs = b.Add(ty.i32(), 2_i, 3_i);
auto* lhs = b.Call(ty.i32(), fn_a, 1_i);
auto* bin = b.Add(ty.i32(), lhs, rhs);
b.Return(fn_b, bin);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b() -> i32 {
return (a(1i) + (2i + 3i));
}
)");
}
TEST_F(IRToProgramInliningTest, BinaryOpSequencedRHSThenUnsequencedLHS) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] {
auto* rhs = b.Call(ty.i32(), fn_a, 3_i);
auto* lhs = b.Add(ty.i32(), 1_i, 2_i);
auto* bin = b.Add(ty.i32(), lhs, rhs);
b.Return(fn_b, bin);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b() -> i32 {
return ((1i + 2i) + a(3i));
}
)");
}
TEST_F(IRToProgramInliningTest, BinaryOpSequencedRHSThenSequencedLHS) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] {
auto* rhs = b.Call(ty.i32(), fn_a, 2_i);
auto* lhs = b.Call(ty.i32(), fn_a, 1_i);
auto* bin = b.Add(ty.i32(), lhs, rhs);
b.Return(fn_b, bin);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b() -> i32 {
let v_1 = a(2i);
return (a(1i) + v_1);
}
)");
}
////////////////////////////////////////////////////////////////////////////////
// Call
////////////////////////////////////////////////////////////////////////////////
TEST_F(IRToProgramInliningTest, CallSequencedXYZ) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] { b.Return(fn_b, 0_i); });
fn_b->SetParams(
{b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32())});
auto* fn_c = b.Function("c", ty.i32());
b.Append(fn_c->Block(), [&] {
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* call = b.Call(ty.i32(), fn_b, x, y, z);
b.Return(fn_c, call);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b(v_1 : i32, v_2 : i32, v_3 : i32) -> i32 {
return 0i;
}
fn c() -> i32 {
return b(a(1i), a(2i), a(3i));
}
)");
}
TEST_F(IRToProgramInliningTest, CallSequencedYXZ) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] { b.Return(fn_b, 0_i); });
fn_b->SetParams(
{b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32())});
auto* fn_c = b.Function("c", ty.i32());
b.Append(fn_c->Block(), [&] {
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* call = b.Call(ty.i32(), fn_b, x, y, z);
b.Return(fn_c, call);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b(v_1 : i32, v_2 : i32, v_3 : i32) -> i32 {
return 0i;
}
fn c() -> i32 {
let v_4 = a(2i);
return b(a(1i), v_4, a(3i));
}
)");
}
TEST_F(IRToProgramInliningTest, CallSequencedXZY) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] { b.Return(fn_b, 0_i); });
fn_b->SetParams(
{b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32())});
auto* fn_c = b.Function("c", ty.i32());
b.Append(fn_c->Block(), [&] {
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* call = b.Call(ty.i32(), fn_b, x, y, z);
b.Return(fn_c, call);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b(v_1 : i32, v_2 : i32, v_3 : i32) -> i32 {
return 0i;
}
fn c() -> i32 {
let v_4 = a(1i);
let v_5 = a(3i);
return b(v_4, a(2i), v_5);
}
)");
}
TEST_F(IRToProgramInliningTest, CallSequencedZXY) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] { b.Return(fn_b, 0_i); });
fn_b->SetParams(
{b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32())});
auto* fn_c = b.Function("c", ty.i32());
b.Append(fn_c->Block(), [&] {
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* call = b.Call(ty.i32(), fn_b, x, y, z);
b.Return(fn_c, call);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b(v_1 : i32, v_2 : i32, v_3 : i32) -> i32 {
return 0i;
}
fn c() -> i32 {
let v_4 = a(3i);
return b(a(1i), a(2i), v_4);
}
)");
}
TEST_F(IRToProgramInliningTest, CallSequencedYZX) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] { b.Return(fn_b, 0_i); });
fn_b->SetParams(
{b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32())});
auto* fn_c = b.Function("c", ty.i32());
b.Append(fn_c->Block(), [&] {
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* call = b.Call(ty.i32(), fn_b, x, y, z);
b.Return(fn_c, call);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b(v_1 : i32, v_2 : i32, v_3 : i32) -> i32 {
return 0i;
}
fn c() -> i32 {
let v_4 = a(2i);
let v_5 = a(3i);
return b(a(1i), v_4, v_5);
}
)");
}
TEST_F(IRToProgramInliningTest, CallSequencedZYX) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 0_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn_b = b.Function("b", ty.i32());
b.Append(fn_b->Block(), [&] { b.Return(fn_b, 0_i); });
fn_b->SetParams(
{b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32()), b.FunctionParam(ty.i32())});
auto* fn_c = b.Function("c", ty.i32());
b.Append(fn_c->Block(), [&] {
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* call = b.Call(ty.i32(), fn_b, x, y, z);
b.Return(fn_c, call);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 0i;
}
fn b(v_1 : i32, v_2 : i32, v_3 : i32) -> i32 {
return 0i;
}
fn c() -> i32 {
let v_4 = a(3i);
let v_5 = a(2i);
return b(a(1i), v_5, v_4);
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVar_ThenCallVoidFn_ThenUseLoad) {
auto* fn_a = b.Function("a", ty.void_());
b.Append(fn_a->Block(), [&] { b.Return(fn_a); });
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
b.Call(ty.void_(), fn_a);
b.Return(fn, load);
});
EXPECT_WGSL(R"(
fn a() {
}
fn f() -> i32 {
var v : i32;
v = 1i;
let v_1 = v;
a();
return v_1;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVar_ThenCallUnusedi32Fn_ThenUseLoad) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
b.Call(ty.i32(), fn_a);
b.Return(fn, load);
});
EXPECT_WGSL(R"(
fn a() -> i32 {
return 1i;
}
fn f() -> i32 {
var v : i32;
v = 1i;
let v_1 = v;
a();
return v_1;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVar_ThenCalli32Fn_ThenUseLoadBeforeCall) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
auto* call = b.Call(ty.i32(), fn_a);
b.Return(fn, b.Add(ty.i32(), load, call));
});
EXPECT_WGSL(R"(
fn a() -> i32 {
return 1i;
}
fn f() -> i32 {
var v : i32;
v = 1i;
return (v + a());
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVar_ThenCalli32Fn_ThenUseCallBeforeLoad) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
auto* call = b.Call(ty.i32(), fn_a);
b.Return(fn, b.Add(ty.i32(), call, load));
});
EXPECT_WGSL(R"(
fn a() -> i32 {
return 1i;
}
fn f() -> i32 {
var v : i32;
v = 1i;
let v_1 = v;
return (a() + v_1);
}
)");
}
////////////////////////////////////////////////////////////////////////////////
// Access
////////////////////////////////////////////////////////////////////////////////
TEST_F(IRToProgramInliningTest, Access_ArrayOfArrayOfArray_XYZ) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* arr = b.Var(ty.ptr<function, array<array<array<i32, 3>, 4>, 5>>());
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* access = b.Access(ty.ptr<function, i32>(), arr, x, y, z);
b.Return(fn, b.Load(access));
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 1i;
}
fn f() -> i32 {
var v_1 : array<array<array<i32, 3u>, 4u>, 5u>;
return v_1[a(1i)][a(2i)][a(3i)];
}
)");
}
TEST_F(IRToProgramInliningTest, Access_ArrayOfArrayOfArray_YXZ) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* arr = b.Var(ty.ptr<function, array<array<array<i32, 3>, 4>, 5>>());
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* access = b.Access(ty.ptr<function, i32>(), arr, x, y, z);
b.Return(fn, b.Load(access));
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 1i;
}
fn f() -> i32 {
var v_1 : array<array<array<i32, 3u>, 4u>, 5u>;
let v_2 = a(2i);
return v_1[a(1i)][v_2][a(3i)];
}
)");
}
TEST_F(IRToProgramInliningTest, Access_ArrayOfArrayOfArray_ZXY) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* arr = b.Var(ty.ptr<function, array<array<array<i32, 3>, 4>, 5>>());
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* access = b.Access(ty.ptr<function, i32>(), arr, x, y, z);
b.Return(fn, b.Load(access));
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 1i;
}
fn f() -> i32 {
var v_1 : array<array<array<i32, 3u>, 4u>, 5u>;
let v_2 = a(3i);
return v_1[a(1i)][a(2i)][v_2];
}
)");
}
TEST_F(IRToProgramInliningTest, Access_ArrayOfArrayOfArray_ZYX) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* arr = b.Var(ty.ptr<function, array<array<array<i32, 3>, 4>, 5>>());
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* access = b.Access(ty.ptr<function, i32>(), arr, x, y, z);
b.Return(fn, b.Load(access));
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 1i;
}
fn f() -> i32 {
var v_1 : array<array<array<i32, 3u>, 4u>, 5u>;
let v_2 = a(3i);
let v_3 = a(2i);
return v_1[a(1i)][v_3][v_2];
}
)");
}
TEST_F(IRToProgramInliningTest, Access_ArrayOfMat3x4f_XYZ) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn = b.Function("f", ty.f32());
b.Append(fn->Block(), [&] {
auto* arr = b.Construct(ty.array<mat3x4<f32>, 5>());
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* access = b.Access(ty.f32(), arr, x, y, z);
b.Return(fn, access);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 1i;
}
fn f() -> f32 {
return array<mat3x4<f32>, 5u>()[a(1i)][a(2i)][a(3i)];
}
)");
}
TEST_F(IRToProgramInliningTest, Access_ArrayOfMat3x4f_YXZ) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn = b.Function("f", ty.f32());
b.Append(fn->Block(), [&] {
auto* arr = b.Construct(ty.array<mat3x4<f32>, 5>());
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* access = b.Access(ty.f32(), arr, x, y, z);
b.Return(fn, access);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 1i;
}
fn f() -> f32 {
let v_1 = a(2i);
return array<mat3x4<f32>, 5u>()[a(1i)][v_1][a(3i)];
}
)");
}
TEST_F(IRToProgramInliningTest, Access_ArrayOfMat3x4f_ZXY) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn = b.Function("f", ty.f32());
b.Append(fn->Block(), [&] {
auto* arr = b.Construct(ty.array<mat3x4<f32>, 5>());
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* access = b.Access(ty.f32(), arr, x, y, z);
b.Return(fn, access);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 1i;
}
fn f() -> f32 {
let v_1 = a(3i);
return array<mat3x4<f32>, 5u>()[a(1i)][a(2i)][v_1];
}
)");
}
TEST_F(IRToProgramInliningTest, Access_ArrayOfMat3x4f_ZYX) {
auto* fn_a = b.Function("a", ty.i32());
b.Append(fn_a->Block(), [&] { b.Return(fn_a, 1_i); });
fn_a->SetParams({b.FunctionParam(ty.i32())});
auto* fn = b.Function("f", ty.f32());
b.Append(fn->Block(), [&] {
auto* arr = b.Construct(ty.array<mat3x4<f32>, 5>());
auto* z = b.Call(ty.i32(), fn_a, 3_i);
auto* y = b.Call(ty.i32(), fn_a, 2_i);
auto* x = b.Call(ty.i32(), fn_a, 1_i);
auto* access = b.Access(ty.f32(), arr, x, y, z);
b.Return(fn, access);
});
EXPECT_WGSL(R"(
fn a(v : i32) -> i32 {
return 1i;
}
fn f() -> f32 {
let v_1 = a(3i);
let v_2 = a(2i);
return array<mat3x4<f32>, 5u>()[a(1i)][v_2][v_1];
}
)");
}
////////////////////////////////////////////////////////////////////////////////
// If
////////////////////////////////////////////////////////////////////////////////
TEST_F(IRToProgramInliningTest, UnsequencedOutsideIf) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* v = b.Add(ty.i32(), 1_i, 2_i);
auto* if_ = b.If(true);
b.Append(if_->True(), [&] { b.Return(fn, v); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
if (true) {
return (1i + 2i);
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, SequencedOutsideIf) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
var->SetInitializer(b.Constant(1_i));
auto* v_1 = b.Load(var);
auto* v_2 = b.Add(ty.i32(), v_1, 2_i);
auto* if_ = b.If(true);
b.Append(if_->True(), [&] { b.Return(fn, v_2); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32 = 1i;
let v_1 = (v + 2i);
if (true) {
return v_1;
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, UnsequencedUsedByIfCondition) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* v = b.Equal(ty.bool_(), 1_i, 2_i);
auto* if_ = b.If(v);
b.Append(if_->True(), [&] { b.Return(fn, 3_i); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
if ((1i == 2i)) {
return 3i;
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, SequencedUsedByIfCondition) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
var->SetInitializer(b.Constant(1_i));
auto* v_1 = b.Load(var);
auto* v_2 = b.Equal(ty.bool_(), v_1, 2_i);
auto* if_ = b.If(v_2);
b.Append(if_->True(), [&] { b.Return(fn, 3_i); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32 = 1i;
if ((v == 2i)) {
return 3i;
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVar_ThenWriteToVarInIf_ThenUseLoad) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
auto* if_ = b.If(true);
b.Append(if_->True(), [&] {
b.Store(var, 2_i);
b.ExitIf(if_);
});
b.Return(fn, load);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
v = 1i;
let v_1 = v;
if (true) {
v = 2i;
}
return v_1;
}
)");
}
////////////////////////////////////////////////////////////////////////////////
// Switch
////////////////////////////////////////////////////////////////////////////////
TEST_F(IRToProgramInliningTest, UnsequencedOutsideSwitch) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* v = b.Add(ty.i32(), 1_i, 2_i);
auto* switch_ = b.Switch(3_i);
auto* case_ = b.DefaultCase(switch_);
b.Append(case_, [&] { b.Return(fn, v); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
switch(3i) {
default: {
return (1i + 2i);
}
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, SequencedOutsideSwitch) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
var->SetInitializer(b.Constant(1_i));
auto* v_1 = b.Load(var);
auto* v_2 = b.Add(ty.i32(), v_1, 2_i);
auto* switch_ = b.Switch(3_i);
auto* case_ = b.DefaultCase(switch_);
b.Append(case_, [&] { b.Return(fn, v_2); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32 = 1i;
let v_1 = (v + 2i);
switch(3i) {
default: {
return v_1;
}
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, UnsequencedUsedBySwitchCondition) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* v = b.Add(ty.i32(), 1_i, 2_i);
auto* switch_ = b.Switch(v);
auto* case_ = b.DefaultCase(switch_);
b.Append(case_, [&] { b.Return(fn, 3_i); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
switch((1i + 2i)) {
default: {
return 3i;
}
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, SequencedUsedBySwitchCondition) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
var->SetInitializer(b.Constant(1_i));
auto* v_1 = b.Load(var);
auto* switch_ = b.Switch(v_1);
auto* case_ = b.DefaultCase(switch_);
b.Append(case_, [&] { b.Return(fn, 3_i); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32 = 1i;
switch(v) {
default: {
return 3i;
}
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVar_ThenWriteToVarInSwitch_ThenUseLoad) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
auto* switch_ = b.Switch(1_i);
auto* case_ = b.DefaultCase(switch_);
b.Append(case_, [&] {
b.Store(var, 2_i);
b.ExitSwitch(switch_);
});
b.Return(fn, load);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
v = 1i;
let v_1 = v;
switch(1i) {
default: {
v = 2i;
}
}
return v_1;
}
)");
}
////////////////////////////////////////////////////////////////////////////////
// Loop
////////////////////////////////////////////////////////////////////////////////
TEST_F(IRToProgramInliningTest, UnsequencedOutsideLoopInitializer) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
auto* v = b.Add(ty.i32(), 1_i, 2_i);
auto* loop = b.Loop();
b.Append(loop->Initializer(), [&] {
b.Store(var, v);
b.NextIteration(loop);
});
b.Append(loop->Body(), [&] { b.ExitLoop(loop); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
{
v = (1i + 2i);
loop {
break;
}
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, SequencedOutsideLoopInitializer) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
auto* v_1 = b.Load(var);
auto* v_2 = b.Add(ty.i32(), v_1, 2_i);
auto* loop = b.Loop();
b.Append(loop->Initializer(), [&] {
b.Store(var, v_2);
b.NextIteration(loop);
});
b.Append(loop->Body(), [&] { b.ExitLoop(loop); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
let v_1 = (v + 2i);
{
v = v_1;
loop {
break;
}
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVar_ThenWriteToVarInLoopInitializer_ThenUseLoad) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
auto* loop = b.Loop();
b.Append(loop->Initializer(), [&] {
b.Store(var, 2_i);
b.NextIteration(loop);
});
b.Append(loop->Body(), [&] { b.ExitLoop(loop); });
b.Return(fn, load);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
v = 1i;
let v_1 = v;
{
v = 2i;
loop {
break;
}
}
return v_1;
}
)");
}
TEST_F(IRToProgramInliningTest, UnsequencedOutsideLoopBody) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* v = b.Add(ty.i32(), 1_i, 2_i);
auto* loop = b.Loop();
b.Append(loop->Body(), [&] { b.Return(fn, v); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
loop {
return (1i + 2i);
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, SequencedOutsideLoopBody) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
auto* v_1 = b.Load(var);
auto* v_2 = b.Add(ty.i32(), v_1, 2_i);
auto* loop = b.Loop();
b.Append(loop->Body(), [&] { b.Return(fn, v_2); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
let v_1 = (v + 2i);
loop {
return v_1;
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVar_ThenWriteToVarInLoopBody_ThenUseLoad) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
auto* loop = b.Loop();
b.Append(loop->Body(), [&] {
b.Store(var, 2_i);
b.ExitLoop(loop);
});
b.Return(fn, load);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
v = 1i;
let v_1 = v;
loop {
v = 2i;
break;
}
return v_1;
}
)");
}
TEST_F(IRToProgramInliningTest, UnsequencedOutsideLoopContinuing) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* v = b.Add(ty.i32(), 1_i, 2_i);
auto* loop = b.Loop();
b.Append(loop->Body(), [&] { b.Continue(loop); });
b.Append(loop->Continuing(), [&] { b.BreakIf(loop, b.Equal(ty.bool_(), v, 3_i)); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
loop {
continuing {
break if ((1i + 2i) == 3i);
}
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, SequencedOutsideLoopContinuing) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
auto* v_1 = b.Load(var);
auto* v_2 = b.Add(ty.i32(), v_1, 2_i);
auto* loop = b.Loop();
b.Append(loop->Body(), [&] { b.Continue(loop); });
b.Append(loop->Continuing(), [&] { b.BreakIf(loop, b.Equal(ty.bool_(), v_2, 3_i)); });
b.Return(fn, 0_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
let v_1 = (v + 2i);
loop {
continuing {
break if (v_1 == 3i);
}
}
return 0i;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVar_ThenWriteToVarInLoopContinuing_ThenUseLoad) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* load = b.Load(var);
auto* loop = b.Loop();
b.Append(loop->Body(), [&] { b.Continue(loop); });
b.Append(loop->Continuing(), [&] {
b.Store(var, 2_i);
b.BreakIf(loop, true);
});
b.Return(fn, load);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
v = 1i;
let v_1 = v;
loop {
continuing {
v = 2i;
break if true;
}
}
return v_1;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVarInLoopInitializer_ThenReadAndWriteToVarInLoopBody) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* loop = b.Loop();
b.Append(loop->Initializer(), [&] {
auto* load = b.Load(var);
b.NextIteration(loop);
b.Append(loop->Body(), [&] {
b.Store(var, b.Add(ty.i32(), load, 1_i));
b.ExitLoop(loop);
});
});
b.Return(fn, 3_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
v = 1i;
{
let v_1 = v;
loop {
v = (v_1 + 1i);
break;
}
}
return 3i;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVarInLoopInitializer_ThenReadAndWriteToVarInLoopContinuing) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* loop = b.Loop();
b.Append(loop->Initializer(), [&] {
auto* load = b.Load(var);
b.NextIteration(loop);
b.Append(loop->Body(), [&] { b.Continue(loop); });
b.Append(loop->Continuing(), [&] {
b.Store(var, b.Add(ty.i32(), load, 1_i));
b.BreakIf(loop, true);
});
});
b.Return(fn, 3_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
v = 1i;
{
let v_1 = v;
loop {
continuing {
v = (v_1 + 1i);
break if true;
}
}
}
return 3i;
}
)");
}
TEST_F(IRToProgramInliningTest, LoadVarInLoopBody_ThenReadAndWriteToVarInLoopContinuing) {
auto* fn = b.Function("f", ty.i32());
b.Append(fn->Block(), [&] {
auto* var = b.Var(ty.ptr<function, i32>());
b.Store(var, 1_i);
auto* loop = b.Loop();
b.Append(loop->Body(), [&] {
auto* load = b.Load(var);
b.Continue(loop);
b.Append(loop->Continuing(), [&] {
b.Store(var, b.Add(ty.i32(), load, 1_i));
b.BreakIf(loop, true);
});
});
b.Return(fn, 3_i);
});
EXPECT_WGSL(R"(
fn f() -> i32 {
var v : i32;
v = 1i;
loop {
let v_1 = v;
continuing {
v = (v_1 + 1i);
break if true;
}
}
return 3i;
}
)");
}
} // namespace
} // namespace tint::wgsl::writer