| // Copyright 2022 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. |
| |
| #include "src/tint/lang/wgsl/ast/transform/expand_compound_assignment.h" |
| |
| #include <utility> |
| |
| #include "src/tint/lang/wgsl/ast/transform/helper_test.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, LhsArrayOfVectorComponent_MemberAccessor_ViaArrayIndex) { |
| auto* src = R"( |
| fn main() { |
| var v : array<vec4<i32>, 3>; |
| v[0].y += 1; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : array<vec4<i32>, 3>; |
| let tint_symbol = &(v[0]); |
| (*(tint_symbol)).y = ((*(tint_symbol)).y + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsVectorComponent_MemberAccessor_ViaDerefPointerDot) { |
| auto* src = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &v; |
| (*p).y += 1; |
| } |
| )"; |
| |
| // TODO(crbug.com/tint/2115): we currently needlessly hoist pointer-deref to another pointer. |
| auto* expect = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &(v); |
| let tint_symbol = &(*(p)); |
| (*(tint_symbol)).y = ((*(tint_symbol)).y + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsVectorComponent_MemberAccessor_ViaPointerDot) { |
| auto* src = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &v; |
| p.y += 1; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &(v); |
| p.y = (p.y + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, LhsVectorComponent_MemberAccessor_ViaDerefPointerIndex) { |
| auto* src = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &v; |
| (*p)[0] += 1; |
| } |
| )"; |
| |
| // TODO(crbug.com/tint/2115): we currently needlessly hoist pointer-deref to another pointer. |
| auto* expect = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &(v); |
| let tint_symbol = &(*(p)); |
| let tint_symbol_1 = 0; |
| (*(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_ViaPointerIndex) { |
| auto* src = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &v; |
| p[0] += 1; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &(v); |
| let tint_symbol = p; |
| let tint_symbol_1 = 0; |
| (*(tint_symbol))[tint_symbol_1] = ((*(tint_symbol))[tint_symbol_1] + 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_ArrayAccessor_ViaDerefPointerIndex) { |
| auto* src = R"( |
| var<private> v : vec4<i32>; |
| |
| fn idx() -> i32 { |
| v.y = 42; |
| return 1; |
| } |
| |
| fn main() { |
| let p = &v; |
| (*p)[idx()]++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> v : vec4<i32>; |
| |
| fn idx() -> i32 { |
| v.y = 42; |
| return 1; |
| } |
| |
| fn main() { |
| let p = &(v); |
| let tint_symbol = &(*(p)); |
| 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_ArrayAccessor_ViaPointerIndex) { |
| auto* src = R"( |
| var<private> v : vec4<i32>; |
| |
| fn idx() -> i32 { |
| v.y = 42; |
| return 1; |
| } |
| |
| fn main() { |
| let p = &v; |
| p[idx()]++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> v : vec4<i32>; |
| |
| fn idx() -> i32 { |
| v.y = 42; |
| return 1; |
| } |
| |
| fn main() { |
| let p = &(v); |
| let tint_symbol = p; |
| 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_LhsVectorComponent_MemberAccessor_ViaDerefPointerDot) { |
| auto* src = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &v; |
| (*p).y++; |
| } |
| )"; |
| |
| // TODO(crbug.com/tint/2115): we currently needlessly hoist pointer-deref to another pointer. |
| auto* expect = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &(v); |
| let tint_symbol = &(*(p)); |
| (*(tint_symbol)).y = ((*(tint_symbol)).y + 1); |
| } |
| )"; |
| |
| auto got = Run<ExpandCompoundAssignment>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExpandCompoundAssignmentTest, Increment_LhsVectorComponent_MemberAccessor_ViaPointerDot) { |
| auto* src = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &v; |
| p.y++; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn main() { |
| var v : vec4<i32>; |
| let p = &(v); |
| p.y = (p.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 |