| // Copyright 2022 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/ast/transform/expand_compound_assignment.h" |
| |
| #include <utility> |
| |
| #include "src/tint/ast/transform/test_helper.h" |
| |
| namespace tint::ast::transform { |
| namespace { |
| |
| using ExpandCompoundAssignmentTest = TransformTest; |
| |
| TEST_F(ExpandCompoundAssignmentTest, ShouldRunEmptyModule) { |
| auto* src = R"()"; |
| |
| EXPECT_FALSE(ShouldRun<ExpandCompoundAssignment>(src)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, ShouldRunHasCompoundAssignment) { |
| auto* src = R"( |
| fn foo() { |
| var v : i32; |
| v += 1; |
| } |
| )"; |
| |
| EXPECT_TRUE(ShouldRun<ExpandCompoundAssignment>(src)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, ShouldRunHasIncrementDecrement) { |
| auto* src = R"( |
| fn foo() { |
| var v : i32; |
| v++; |
| } |
| )"; |
| |
| EXPECT_TRUE(ShouldRun<ExpandCompoundAssignment>(src)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Basic) { |
| auto* src = R"( |
| fn main() { |
| var v : i32; |
| v += 1; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : i32; |
| v = (v + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsPointer) { |
| auto* src = R"( |
| fn main() { |
| var v : i32; |
| let p = &v; |
| *p += 1; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : i32; |
| let p = &(v); |
| let tint_symbol = &(*(p)); |
| *(tint_symbol) = (*(tint_symbol) + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsStructMember) { |
| auto* src = R"( |
| struct S { |
| m : f32, |
| } |
| |
| fn main() { |
| var s : S; |
| s.m += 1.0; |
| } |
| )"; |
| |
| auto* expect = R"( |
| struct S { |
| m : f32, |
| } |
| |
| fn main() { |
| var s : S; |
| s.m = (s.m + 1.0); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsArrayElement) { |
| auto* src = R"( |
| var<private> a : array<i32, 4>; |
| |
| fn idx() -> i32 { |
| a[1] = 42; |
| return 1; |
| } |
| |
| fn main() { |
| a[idx()] += 1; |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> a : array<i32, 4>; |
| |
| fn idx() -> i32 { |
| a[1] = 42; |
| return 1; |
| } |
| |
| fn main() { |
| let tint_symbol = &(a[idx()]); |
| *(tint_symbol) = (*(tint_symbol) + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsVectorComponent_ArrayAccessor) { |
| auto* src = R"( |
| var<private> v : vec4<i32>; |
| |
| fn idx() -> i32 { |
| v.y = 42; |
| return 1; |
| } |
| |
| fn main() { |
| v[idx()] += 1; |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> v : vec4<i32>; |
| |
| fn idx() -> i32 { |
| v.y = 42; |
| return 1; |
| } |
| |
| fn main() { |
| let tint_symbol = &(v); |
| let tint_symbol_1 = idx(); |
| (*(tint_symbol))[tint_symbol_1] = ((*(tint_symbol))[tint_symbol_1] + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsVectorComponent_MemberAccessor) { |
| auto* src = R"( |
| fn main() { |
| var v : vec4<i32>; |
| v.y += 1; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : vec4<i32>; |
| v.y = (v.y + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsMatrixColumn) { |
| auto* src = R"( |
| var<private> m : mat4x4<f32>; |
| |
| fn idx() -> i32 { |
| m[0].y = 42.0; |
| return 1; |
| } |
| |
| fn main() { |
| m[idx()] += 1.0; |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> m : mat4x4<f32>; |
| |
| fn idx() -> i32 { |
| m[0].y = 42.0; |
| return 1; |
| } |
| |
| fn main() { |
| let tint_symbol = &(m[idx()]); |
| *(tint_symbol) = (*(tint_symbol) + 1.0); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsMatrixElement) { |
| auto* src = R"( |
| var<private> m : mat4x4<f32>; |
| |
| fn idx1() -> i32 { |
| m[0].y = 42.0; |
| return 1; |
| } |
| |
| fn idx2() -> i32 { |
| m[1].z = 42.0; |
| return 1; |
| } |
| |
| fn main() { |
| m[idx1()][idx2()] += 1.0; |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> m : mat4x4<f32>; |
| |
| fn idx1() -> i32 { |
| m[0].y = 42.0; |
| return 1; |
| } |
| |
| fn idx2() -> i32 { |
| m[1].z = 42.0; |
| return 1; |
| } |
| |
| fn main() { |
| let tint_symbol = &(m[idx1()]); |
| let tint_symbol_1 = idx2(); |
| (*(tint_symbol))[tint_symbol_1] = ((*(tint_symbol))[tint_symbol_1] + 1.0); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsMultipleSideEffects) { |
| auto* src = R"( |
| struct S { |
| a : array<vec4<f32>, 3>, |
| } |
| |
| @group(0) @binding(0) var<storage, read_write> buffer : array<S>; |
| |
| var<private> p : i32; |
| |
| fn idx1() -> i32 { |
| p += 1; |
| return 3; |
| } |
| |
| fn idx2() -> i32 { |
| p *= 3; |
| return 2; |
| } |
| |
| fn idx3() -> i32 { |
| p -= 2; |
| return 1; |
| } |
| |
| fn main() { |
| buffer[idx1()].a[idx2()][idx3()] += 1.0; |
| } |
| )"; |
| |
| auto* expect = R"( |
| struct S { |
| a : array<vec4<f32>, 3>, |
| } |
| |
| @group(0) @binding(0) var<storage, read_write> buffer : array<S>; |
| |
| var<private> p : i32; |
| |
| fn idx1() -> i32 { |
| p = (p + 1); |
| return 3; |
| } |
| |
| fn idx2() -> i32 { |
| p = (p * 3); |
| return 2; |
| } |
| |
| fn idx3() -> i32 { |
| p = (p - 2); |
| return 1; |
| } |
| |
| fn main() { |
| let tint_symbol = &(buffer[idx1()].a[idx2()]); |
| let tint_symbol_1 = idx3(); |
| (*(tint_symbol))[tint_symbol_1] = ((*(tint_symbol))[tint_symbol_1] + 1.0); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, ForLoopInit) { |
| auto* src = R"( |
| var<private> a : array<vec4<i32>, 4>; |
| |
| var<private> p : i32; |
| |
| fn idx1() -> i32 { |
| p = (p + 1); |
| return 3; |
| } |
| |
| fn idx2() -> i32 { |
| p = (p * 3); |
| return 2; |
| } |
| |
| fn main() { |
| for (a[idx1()][idx2()] += 1; ; ) { |
| break; |
| } |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> a : array<vec4<i32>, 4>; |
| |
| var<private> p : i32; |
| |
| fn idx1() -> i32 { |
| p = (p + 1); |
| return 3; |
| } |
| |
| fn idx2() -> i32 { |
| p = (p * 3); |
| return 2; |
| } |
| |
| fn main() { |
| { |
| let tint_symbol = &(a[idx1()]); |
| let tint_symbol_1 = idx2(); |
| (*(tint_symbol))[tint_symbol_1] = ((*(tint_symbol))[tint_symbol_1] + 1); |
| loop { |
| { |
| break; |
| } |
| } |
| } |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, ForLoopCont) { |
| auto* src = R"( |
| var<private> a : array<vec4<i32>, 4>; |
| |
| var<private> p : i32; |
| |
| fn idx1() -> i32 { |
| p = (p + 1); |
| return 3; |
| } |
| |
| fn idx2() -> i32 { |
| p = (p * 3); |
| return 2; |
| } |
| |
| fn main() { |
| for (; ; a[idx1()][idx2()] += 1) { |
| break; |
| } |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> a : array<vec4<i32>, 4>; |
| |
| var<private> p : i32; |
| |
| fn idx1() -> i32 { |
| p = (p + 1); |
| return 3; |
| } |
| |
| fn idx2() -> i32 { |
| p = (p * 3); |
| return 2; |
| } |
| |
| fn main() { |
| loop { |
| { |
| break; |
| } |
| |
| continuing { |
| let tint_symbol = &(a[idx1()]); |
| let tint_symbol_1 = idx2(); |
| (*(tint_symbol))[tint_symbol_1] = ((*(tint_symbol))[tint_symbol_1] + 1); |
| } |
| } |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Increment_I32) { |
| auto* src = R"( |
| fn main() { |
| var v : i32; |
| v++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : i32; |
| v = (v + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Increment_U32) { |
| auto* src = R"( |
| fn main() { |
| var v : u32; |
| v++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : u32; |
| v = (v + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Decrement_I32) { |
| auto* src = R"( |
| fn main() { |
| var v : i32; |
| v--; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : i32; |
| v = (v - 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Decrement_U32) { |
| auto* src = R"( |
| fn main() { |
| var v : u32; |
| v--; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : u32; |
| v = (v - 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Increment_LhsPointer) { |
| auto* src = R"( |
| fn main() { |
| var v : i32; |
| let p = &v; |
| *p++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : i32; |
| let p = &(v); |
| let tint_symbol = &(*(p)); |
| *(tint_symbol) = (*(tint_symbol) + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Increment_LhsStructMember) { |
| auto* src = R"( |
| struct S { |
| m : i32, |
| } |
| |
| fn main() { |
| var s : S; |
| s.m++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| struct S { |
| m : i32, |
| } |
| |
| fn main() { |
| var s : S; |
| s.m = (s.m + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Increment_LhsArrayElement) { |
| auto* src = R"( |
| var<private> a : array<i32, 4>; |
| |
| fn idx() -> i32 { |
| a[1] = 42; |
| return 1; |
| } |
| |
| fn main() { |
| a[idx()]++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> a : array<i32, 4>; |
| |
| fn idx() -> i32 { |
| a[1] = 42; |
| return 1; |
| } |
| |
| fn main() { |
| let tint_symbol = &(a[idx()]); |
| *(tint_symbol) = (*(tint_symbol) + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Increment_LhsVectorComponent_ArrayAccessor) { |
| auto* src = R"( |
| var<private> v : vec4<i32>; |
| |
| fn idx() -> i32 { |
| v.y = 42; |
| return 1; |
| } |
| |
| fn main() { |
| v[idx()]++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> v : vec4<i32>; |
| |
| fn idx() -> i32 { |
| v.y = 42; |
| return 1; |
| } |
| |
| fn main() { |
| let tint_symbol = &(v); |
| let tint_symbol_1 = idx(); |
| (*(tint_symbol))[tint_symbol_1] = ((*(tint_symbol))[tint_symbol_1] + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Increment_LhsVectorComponent_MemberAccessor) { |
| auto* src = R"( |
| fn main() { |
| var v : vec4<i32>; |
| v.y++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : vec4<i32>; |
| v.y = (v.y + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Increment_ForLoopCont) { |
| auto* src = R"( |
| var<private> a : array<vec4<i32>, 4>; |
| |
| var<private> p : i32; |
| |
| fn idx1() -> i32 { |
| p = (p + 1); |
| return 3; |
| } |
| |
| fn idx2() -> i32 { |
| p = (p * 3); |
| return 2; |
| } |
| |
| fn main() { |
| for (; ; a[idx1()][idx2()]++) { |
| break; |
| } |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> a : array<vec4<i32>, 4>; |
| |
| var<private> p : i32; |
| |
| fn idx1() -> i32 { |
| p = (p + 1); |
| return 3; |
| } |
| |
| fn idx2() -> i32 { |
| p = (p * 3); |
| return 2; |
| } |
| |
| fn main() { |
| loop { |
| { |
| break; |
| } |
| |
| continuing { |
| let tint_symbol = &(a[idx1()]); |
| let tint_symbol_1 = idx2(); |
| (*(tint_symbol))[tint_symbol_1] = ((*(tint_symbol))[tint_symbol_1] + 1); |
| } |
| } |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| } // namespace |
| } // namespace tint::ast::transform |