| // 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 |
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| // 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/resolver/resolver.h" |
| #include "src/tint/lang/wgsl/resolver/resolver_helper_test.h" |
| #include "src/tint/utils/text/string_stream.h" |
| |
| #include "gmock/gmock.h" |
| |
| namespace tint::resolver { |
| namespace { |
| |
| using namespace tint::core::fluent_types; // NOLINT |
| using namespace tint::core::number_suffixes; // NOLINT |
| |
| struct ResolverAliasAnalysisTest : public resolver::TestHelper, public testing::Test {}; |
| |
| // Base test harness for tests that pass two pointers to a function. |
| // |
| // fn target(p1 : ptr<function, i32>, p2 : ptr<function, i32>) { |
| // <test statements> |
| // } |
| // fn caller() { |
| // var v1 : i32; |
| // var v2 : i32; |
| // target(&v1, aliased ? &v1 : &v2); |
| // } |
| struct TwoPointerConfig { |
| const core::AddressSpace address_space; // The address space for the pointers. |
| const bool aliased; // Whether the pointers alias or not. |
| }; |
| class TwoPointers : public ResolverTestWithParam<TwoPointerConfig> { |
| protected: |
| void SetUp() override { |
| Vector<const ast::Statement*, 4> body; |
| if (GetParam().address_space == core::AddressSpace::kFunction) { |
| body.Push(Decl(Var("v1", ty.i32()))); |
| body.Push(Decl(Var("v2", ty.i32()))); |
| } else { |
| GlobalVar("v1", core::AddressSpace::kPrivate, ty.i32()); |
| GlobalVar("v2", core::AddressSpace::kPrivate, ty.i32()); |
| } |
| body.Push(CallStmt(Call("target", AddressOf(Source{{12, 34}}, "v1"), |
| AddressOf(Source{{56, 78}}, GetParam().aliased ? "v1" : "v2")))); |
| Func("caller", tint::Empty, ty.void_(), body); |
| } |
| |
| void Run(Vector<const ast::Statement*, 4>&& body, const char* err = nullptr) { |
| auto addrspace = GetParam().address_space; |
| Func("target", |
| Vector{ |
| Param("p1", ty.ptr<i32>(addrspace)), |
| Param("p2", ty.ptr<i32>(addrspace)), |
| }, |
| ty.void_(), std::move(body)); |
| if (GetParam().aliased && err) { |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), err); |
| } else { |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| } |
| }; |
| |
| TEST_P(TwoPointers, ReadRead) { |
| // _ = *p1; |
| // _ = *p2; |
| Run({ |
| Assign(Phony(), Deref("p1")), |
| Assign(Phony(), Deref("p2")), |
| }); |
| } |
| |
| TEST_P(TwoPointers, ReadWrite) { |
| // _ = *p1; |
| // *p2 = 42; |
| Run( |
| { |
| Assign(Phony(), Deref("p1")), |
| Assign(Deref("p2"), 42_a), |
| }, |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(TwoPointers, WriteRead) { |
| // *p1 = 42; |
| // _ = *p2; |
| Run( |
| { |
| Assign(Deref("p1"), 42_a), |
| Assign(Phony(), Deref("p2")), |
| }, |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(TwoPointers, WriteWrite) { |
| // *p1 = 42; |
| // *p2 = 42; |
| Run( |
| { |
| Assign(Deref("p1"), 42_a), |
| Assign(Deref("p2"), 42_a), |
| }, |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(TwoPointers, ReadWriteThroughChain) { |
| // fn f2(p1 : ptr<function, i32>, p2 : ptr<function, i32>) { |
| // _ = *p1; |
| // *p2 = 42; |
| // } |
| // fn f1(p1 : ptr<function, i32>, p2 : ptr<function, i32>) { |
| // f2(p1, p2); |
| // } |
| // |
| // f1(p1, p2); |
| Func("f2", |
| Vector{ |
| Param("p1", ty.ptr<i32>(GetParam().address_space)), |
| Param("p2", ty.ptr<i32>(GetParam().address_space)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Phony(), Deref("p1")), |
| Assign(Deref("p2"), 42_a), |
| }); |
| Func("f1", |
| Vector{ |
| Param("p1", ty.ptr<i32>(GetParam().address_space)), |
| Param("p2", ty.ptr<i32>(GetParam().address_space)), |
| }, |
| ty.void_(), |
| Vector{ |
| CallStmt(Call("f2", "p1", "p2")), |
| }); |
| Run( |
| { |
| CallStmt(Call("f1", "p1", "p2")), |
| }, |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(TwoPointers, ReadWriteAcrossDifferentFunctions) { |
| // fn f1(p1 : ptr<function, i32>) { |
| // _ = *p1; |
| // } |
| // fn f2(p2 : ptr<function, i32>) { |
| // *p2 = 42; |
| // } |
| // |
| // f1(p1); |
| // f2(p2); |
| Func("f1", |
| Vector{ |
| Param("p1", ty.ptr<i32>(GetParam().address_space)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Phony(), Deref("p1")), |
| }); |
| Func("f2", |
| Vector{ |
| Param("p2", ty.ptr<i32>(GetParam().address_space)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Deref("p2"), 42_a), |
| }); |
| Run( |
| { |
| CallStmt(Call("f1", "p1")), |
| CallStmt(Call("f2", "p2")), |
| }, |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(ResolverAliasAnalysisTest, |
| TwoPointers, |
| ::testing::Values(TwoPointerConfig{core::AddressSpace::kFunction, false}, |
| TwoPointerConfig{core::AddressSpace::kFunction, true}, |
| TwoPointerConfig{core::AddressSpace::kPrivate, false}, |
| TwoPointerConfig{core::AddressSpace::kPrivate, true}), |
| [](const ::testing::TestParamInfo<TwoPointers::ParamType>& p) { |
| StringStream ss; |
| ss << (p.param.aliased ? "Aliased" : "Unaliased") << "_" |
| << p.param.address_space; |
| return ss.str(); |
| }); |
| |
| // Base test harness for tests that pass a pointer to a function that references a module-scope var. |
| // |
| // var<private> global_1 : i32; |
| // var<private> global_2 : i32; |
| // fn target(p1 : ptr<private, i32>) { |
| // <test statements> |
| // } |
| // fn caller() { |
| // target(aliased ? &global_1 : &global_2); |
| // } |
| class OnePointerOneModuleScope : public ResolverTestWithParam<bool> { |
| protected: |
| void SetUp() override { |
| GlobalVar("global_1", core::AddressSpace::kPrivate, ty.i32()); |
| GlobalVar("global_2", core::AddressSpace::kPrivate, ty.i32()); |
| Func("caller", tint::Empty, ty.void_(), |
| Vector{ |
| CallStmt(Call("target", |
| AddressOf(Source{{12, 34}}, GetParam() ? "global_1" : "global_2"))), |
| }); |
| } |
| |
| void Run(Vector<const ast::Statement*, 4>&& body, const char* err = nullptr) { |
| Func("target", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), std::move(body)); |
| if (GetParam() && err) { |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), err); |
| } else { |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| } |
| }; |
| |
| TEST_P(OnePointerOneModuleScope, ReadRead) { |
| // _ = *p1; |
| // _ = global_1; |
| Run({ |
| Assign(Phony(), Deref("p1")), |
| Assign(Phony(), "global_1"), |
| }); |
| } |
| |
| TEST_P(OnePointerOneModuleScope, ReadWrite) { |
| // _ = *p1; |
| // global_1 = 42; |
| Run( |
| { |
| Assign(Phony(), Deref("p1")), |
| Assign(Expr(Source{{56, 78}}, "global_1"), 42_a), |
| }, |
| R"(12:34 error: invalid aliased pointer argument |
| 56:78 note: aliases with module-scope variable write in 'target')"); |
| } |
| |
| TEST_P(OnePointerOneModuleScope, WriteRead) { |
| // *p1 = 42; |
| // _ = global_1; |
| Run( |
| { |
| Assign(Deref("p1"), 42_a), |
| Assign(Phony(), Expr(Source{{56, 78}}, "global_1")), |
| }, |
| R"(12:34 error: invalid aliased pointer argument |
| 56:78 note: aliases with module-scope variable read in 'target')"); |
| } |
| |
| TEST_P(OnePointerOneModuleScope, WriteWrite) { |
| // *p1 = 42; |
| // global_1 = 42; |
| Run( |
| { |
| Assign(Deref("p1"), 42_a), |
| Assign(Expr(Source{{56, 78}}, "global_1"), 42_a), |
| }, |
| R"(12:34 error: invalid aliased pointer argument |
| 56:78 note: aliases with module-scope variable write in 'target')"); |
| } |
| |
| TEST_P(OnePointerOneModuleScope, ReadWriteThroughChain_GlobalViaArg) { |
| // fn f2(p1 : ptr<private, i32>) { |
| // *p1 = 42; |
| // } |
| // fn f1(p1 : ptr<private, i32>) { |
| // _ = *p1; |
| // f2(&global_1); |
| // } |
| // |
| // f1(p1); |
| Func("f2", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Deref("p1"), 42_a), |
| }); |
| Func("f1", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Phony(), Deref("p1")), |
| CallStmt(Call("f2", AddressOf(Source{{56, 78}}, "global_1"))), |
| }); |
| Run( |
| { |
| CallStmt(Call("f1", "p1")), |
| }, |
| R"(12:34 error: invalid aliased pointer argument |
| 56:78 note: aliases with module-scope variable write in 'f1')"); |
| } |
| |
| TEST_P(OnePointerOneModuleScope, ReadWriteThroughChain_Both) { |
| // fn f2(p1 : ptr<private, i32>) { |
| // _ = *p1; |
| // global_1 = 42; |
| // } |
| // fn f1(p1 : ptr<private, i32>) { |
| // f2(p1); |
| // } |
| // |
| // f1(p1); |
| Func("f2", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Phony(), Deref("p1")), |
| Assign(Expr(Source{{56, 78}}, "global_1"), 42_a), |
| }); |
| Func("f1", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), |
| Vector{ |
| CallStmt(Call("f2", "p1")), |
| }); |
| Run( |
| { |
| CallStmt(Call("f1", "p1")), |
| }, |
| R"(12:34 error: invalid aliased pointer argument |
| 56:78 note: aliases with module-scope variable write in 'f2')"); |
| } |
| |
| TEST_P(OnePointerOneModuleScope, WriteReadThroughChain_GlobalViaArg) { |
| // fn f2(p1 : ptr<private, i32>) { |
| // _ = *p1; |
| // } |
| // fn f1(p1 : ptr<private, i32>) { |
| // *p1 = 42; |
| // f2(&global_1); |
| // } |
| // |
| // f1(p1); |
| Func("f2", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Phony(), Deref("p1")), |
| }); |
| Func("f1", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Deref("p1"), 42_a), |
| CallStmt(Call("f2", AddressOf(Source{{56, 78}}, "global_1"))), |
| }); |
| Run( |
| { |
| CallStmt(Call("f1", "p1")), |
| }, |
| R"(12:34 error: invalid aliased pointer argument |
| 56:78 note: aliases with module-scope variable read in 'f1')"); |
| } |
| |
| TEST_P(OnePointerOneModuleScope, WriteReadThroughChain_Both) { |
| // fn f2(p1 : ptr<private, i32>) { |
| // *p1 = 42; |
| // _ = global_1; |
| // } |
| // fn f1(p1 : ptr<private, i32>) { |
| // f2(p1); |
| // } |
| // |
| // f1(p1); |
| Func("f2", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Deref("p1"), 42_a), |
| Assign(Phony(), Expr(Source{{56, 78}}, "global_1")), |
| }); |
| Func("f1", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), |
| Vector{ |
| CallStmt(Call("f2", "p1")), |
| }); |
| Run( |
| { |
| CallStmt(Call("f1", "p1")), |
| }, |
| R"(12:34 error: invalid aliased pointer argument |
| 56:78 note: aliases with module-scope variable read in 'f2')"); |
| } |
| |
| TEST_P(OnePointerOneModuleScope, ReadWriteAcrossDifferentFunctions) { |
| // fn f1(p1 : ptr<private, i32>) { |
| // _ = *p1; |
| // } |
| // fn f2() { |
| // global_1 = 42; |
| // } |
| // |
| // f1(p1); |
| // f2(); |
| Func("f1", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kPrivate)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Phony(), Deref("p1")), |
| }); |
| Func("f2", tint::Empty, ty.void_(), |
| Vector{ |
| Assign(Expr(Source{{56, 78}}, "global_1"), 42_a), |
| }); |
| Run( |
| { |
| CallStmt(Call("f1", "p1")), |
| CallStmt(Call("f2")), |
| }, |
| R"(12:34 error: invalid aliased pointer argument |
| 56:78 note: aliases with module-scope variable write in 'f2')"); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(ResolverAliasAnalysisTest, |
| OnePointerOneModuleScope, |
| ::testing::Values(false, true), |
| [](const ::testing::TestParamInfo<bool>& p) { |
| return p.param ? "Aliased" : "Unaliased"; |
| }); |
| |
| // Base test harness for tests that use a potentially aliased pointer in a variety of expressions. |
| // |
| // fn target(p1 : ptr<function, i32>, p2 : ptr<function, i32>) { |
| // *p1 = 42; |
| // <test statements> |
| // } |
| // fn caller() { |
| // var v1 : i32; |
| // var v2 : i32; |
| // target(&v1, aliased ? &v1 : &v2); |
| // } |
| class Use : public ResolverTestWithParam<bool> { |
| protected: |
| void SetUp() override { |
| Func("caller", tint::Empty, ty.void_(), |
| Vector{ |
| Decl(Var("v1", ty.i32())), |
| Decl(Var("v2", ty.i32())), |
| CallStmt(Call("target", AddressOf(Source{{12, 34}}, "v1"), |
| AddressOf(Source{{56, 78}}, GetParam() ? "v1" : "v2"))), |
| }); |
| } |
| |
| void Run(const ast::Statement* stmt, const char* err = nullptr) { |
| Func("target", |
| Vector{ |
| Param("p1", ty.ptr<i32>(core::AddressSpace::kFunction)), |
| Param("p2", ty.ptr<i32>(core::AddressSpace::kFunction)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Deref("p1"), 42_a), |
| stmt, |
| }); |
| if (GetParam() && err) { |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), err); |
| } else { |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| } |
| }; |
| |
| TEST_P(Use, NoAccess) { |
| // Expect no errors even when aliasing occurs. |
| Run(Assign(Phony(), 42_a)); |
| } |
| |
| TEST_P(Use, Write_Increment) { |
| // (*p2)++; |
| Run(Increment(Deref("p2")), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Write_Decrement) { |
| // (*p2)--; |
| Run(Decrement(Deref("p2")), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Write_CompoundAssignment_LHS) { |
| // *p2 += 42; |
| Run(CompoundAssign(Deref("p2"), 42_a, core::BinaryOp::kAdd), |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_CompoundAssignment_RHS) { |
| // var<private> global : i32; |
| // global += *p2; |
| GlobalVar("global", core::AddressSpace::kPrivate, ty.i32()); |
| Run(CompoundAssign("global", Deref("p2"), core::BinaryOp::kAdd), |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_BinaryOp_LHS) { |
| // _ = (*p2) + 1; |
| Run(Assign(Phony(), Add(Deref("p2"), 1_a)), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_BinaryOp_RHS) { |
| // _ = 1 + (*p2); |
| Run(Assign(Phony(), Add(1_a, Deref("p2"))), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_UnaryMinus) { |
| // _ = -(*p2); |
| Run(Assign(Phony(), Negation(Deref("p2"))), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_FunctionCallArg) { |
| // abs(*p2); |
| Run(Assign(Phony(), Call("abs", Deref("p2"))), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_Bitcast) { |
| // _ = bitcast<f32>(*p2); |
| Run(Assign(Phony(), Bitcast<f32>(Deref("p2"))), |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_Convert) { |
| // _ = f32(*p2); |
| Run(Assign(Phony(), Call<f32>(Deref("p2"))), |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_IndexAccessor) { |
| // var<private> data : array<f32, 4>; |
| // _ = data[*p2]; |
| GlobalVar("data", core::AddressSpace::kPrivate, ty.array<f32, 4>()); |
| Run(Assign(Phony(), IndexAccessor("data", Deref("p2"))), |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_LetInitializer) { |
| // let x = *p2; |
| Run(Decl(Let("x", Deref("p2"))), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_VarInitializer) { |
| // var x = *p2; |
| Run(Decl(Var("x", core::AddressSpace::kFunction, Deref("p2"))), |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_ReturnValue) { |
| // fn foo(p : ptr<function, i32>) -> i32 { return *p; } |
| // foo(p2); |
| Func("foo", |
| Vector{ |
| Param("p", ty.ptr<i32>(core::AddressSpace::kFunction)), |
| }, |
| ty.i32(), |
| Vector{ |
| Return(Deref("p")), |
| }); |
| Run(Assign(Phony(), Call("foo", "p2")), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, Read_Switch) { |
| // Switch (*p2) { default {} } |
| Run(Switch(Deref("p2"), Vector{DefaultCase(Block())}), |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(Use, NoAccess_AddressOf_Deref) { |
| // Should not invoke the load-rule, and therefore expect no errors even when aliasing occurs. |
| // let newp = &(*p2); |
| Run(Decl(Let("newp", AddressOf(Deref("p2"))))); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(ResolverAliasAnalysisTest, |
| Use, |
| ::testing::Values(false, true), |
| [](const ::testing::TestParamInfo<bool>& p) { |
| return p.param ? "Aliased" : "Unaliased"; |
| }); |
| |
| // Base test harness for tests that use a potentially aliased pointer in a variety of expressions. |
| // As above, but using the bool type to test expressions that invoke that load-rule for booleans. |
| // |
| // fn target(p1 : ptr<function, bool>, p2 : ptr<function, bool>) { |
| // *p1 = true; |
| // <test statements> |
| // } |
| // fn caller() { |
| // var v1 : bool; |
| // var v2 : bool; |
| // target(&v1, aliased ? &v1 : &v2); |
| // } |
| class UseBool : public ResolverTestWithParam<bool> { |
| protected: |
| void SetUp() override { |
| Func("caller", tint::Empty, ty.void_(), |
| Vector{ |
| Decl(Var("v1", ty.bool_())), |
| Decl(Var("v2", ty.bool_())), |
| CallStmt(Call("target", AddressOf(Source{{12, 34}}, "v1"), |
| AddressOf(Source{{56, 78}}, GetParam() ? "v1" : "v2"))), |
| }); |
| } |
| |
| void Run(const ast::Statement* stmt, const char* err = nullptr) { |
| Func("target", |
| Vector{ |
| Param("p1", ty.ptr<bool>(core::AddressSpace::kFunction)), |
| Param("p2", ty.ptr<bool>(core::AddressSpace::kFunction)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Deref("p1"), true), |
| stmt, |
| }); |
| if (GetParam() && err) { |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), err); |
| } else { |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| } |
| }; |
| |
| TEST_P(UseBool, Read_IfCond) { |
| // if (*p2) {} |
| Run(If(Deref("p2"), Block()), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(UseBool, Read_WhileCond) { |
| // while (*p2) {} |
| Run(While(Deref("p2"), Block()), R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(UseBool, Read_ForCond) { |
| // for (; *p2; ) {} |
| Run(For(nullptr, Deref("p2"), nullptr, Block()), |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(UseBool, Read_BreakIf) { |
| // loop { continuing { break if (*p2); } } |
| Run(Loop(Block(), Block(BreakIf(Deref("p2")))), |
| R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(ResolverAliasAnalysisTest, |
| UseBool, |
| ::testing::Values(false, true), |
| [](const ::testing::TestParamInfo<bool>& p) { |
| return p.param ? "Aliased" : "Unaliased"; |
| }); |
| |
| TEST_F(ResolverAliasAnalysisTest, NoAccess_MemberAccessor) { |
| // Should not invoke the load-rule, and therefore expect no errors even when aliasing occurs. |
| // |
| // struct S { a : i32 } |
| // fn f2(p1 : ptr<function, S>, p2 : ptr<function, S>) { |
| // let newp = &((*p2).a); |
| // (*p1).a = 42; |
| // } |
| // fn f1() { |
| // var v : S; |
| // f2(&v, &v); |
| // } |
| Structure("S", Vector{Member("a", ty.i32())}); |
| Func("f2", |
| Vector{ |
| Param("p1", ty.ptr<function>(ty("S"))), |
| Param("p2", ty.ptr<function>(ty("S"))), |
| }, |
| ty.void_(), |
| Vector{ |
| Decl(Let("newp", AddressOf(MemberAccessor(Deref("p2"), "a")))), |
| Assign(MemberAccessor(Deref("p1"), "a"), 42_a), |
| }); |
| Func("f1", tint::Empty, ty.void_(), |
| Vector{ |
| Decl(Var("v", ty("S"))), |
| CallStmt(Call("f2", AddressOf("v"), AddressOf("v"))), |
| }); |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverAliasAnalysisTest, Read_MemberAccessor) { |
| // struct S { a : i32 } |
| // fn f2(p1 : ptr<function, S>, p2 : ptr<function, S>) { |
| // _ = (*p2).a; |
| // *p1 = S(); |
| // } |
| // fn f1() { |
| // var v : S; |
| // f2(&v, &v); |
| // } |
| Structure("S", Vector{Member("a", ty.i32())}); |
| Func("f2", |
| Vector{ |
| Param("p1", ty.ptr<function>(ty("S"))), |
| Param("p2", ty.ptr<function>(ty("S"))), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Phony(), MemberAccessor(Deref("p2"), "a")), |
| Assign(Deref("p1"), Call("S")), |
| }); |
| Func("f1", tint::Empty, ty.void_(), |
| Vector{ |
| Decl(Var("v", ty("S"))), |
| CallStmt( |
| Call("f2", AddressOf(Source{{12, 34}}, "v"), AddressOf(Source{{56, 76}}, "v"))), |
| }); |
| EXPECT_FALSE(r()->Resolve()) << r()->error(); |
| EXPECT_EQ(r()->error(), R"(56:76 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_F(ResolverAliasAnalysisTest, Write_MemberAccessor) { |
| // struct S { a : i32 } |
| // fn f2(p1 : ptr<function, S>, p2 : ptr<function, S>) { |
| // _ = *p2; |
| // (*p1).a = 42; |
| // } |
| // fn f1() { |
| // var v : S; |
| // f2(&v, &v); |
| // } |
| Structure("S", Vector{Member("a", ty.i32())}); |
| Func("f2", |
| Vector{ |
| Param("p1", ty.ptr<function>(ty("S"))), |
| Param("p2", ty.ptr<function>(ty("S"))), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Phony(), Deref("p2")), |
| Assign(MemberAccessor(Deref("p1"), "a"), 42_a), |
| }); |
| Func("f1", tint::Empty, ty.void_(), |
| Vector{ |
| Decl(Var("v", ty("S"))), |
| CallStmt( |
| Call("f2", AddressOf(Source{{12, 34}}, "v"), AddressOf(Source{{56, 76}}, "v"))), |
| }); |
| EXPECT_FALSE(r()->Resolve()) << r()->error(); |
| EXPECT_EQ(r()->error(), R"(56:76 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_F(ResolverAliasAnalysisTest, Read_MultiComponentSwizzle) { |
| // fn f2(p1 : ptr<function, vec4<f32>, p2 : ptr<function, vec4<f32>) { |
| // _ = (*p2).zy; |
| // *p1 = vec4<f32>(); |
| // } |
| // fn f1() { |
| // var v : vec4<f32>; |
| // f2(&v, &v); |
| // } |
| Structure("S", Vector{Member("a", ty.i32())}); |
| Func("f2", |
| Vector{ |
| Param("p1", ty.ptr<function, vec4<f32>>()), |
| Param("p2", ty.ptr<function, vec4<f32>>()), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Phony(), MemberAccessor(Deref("p2"), "zy")), |
| Assign(Deref("p1"), Call<vec4<f32>>()), |
| }); |
| Func("f1", tint::Empty, ty.void_(), |
| Vector{ |
| Decl(Var("v", ty.vec4<f32>())), |
| CallStmt( |
| Call("f2", AddressOf(Source{{12, 34}}, "v"), AddressOf(Source{{56, 76}}, "v"))), |
| }); |
| EXPECT_FALSE(r()->Resolve()) << r()->error(); |
| EXPECT_EQ(r()->error(), R"(56:76 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_F(ResolverAliasAnalysisTest, SinglePointerReadWrite) { |
| // Test that we can both read and write from a single pointer parameter. |
| // |
| // fn f1(p : ptr<function, i32>) { |
| // _ = *p; |
| // *p = 42; |
| // } |
| // fn f2() { |
| // var v : i32; |
| // f1(&v); |
| // } |
| Func("f1", |
| Vector{ |
| Param("p", ty.ptr<i32>(core::AddressSpace::kFunction)), |
| }, |
| ty.void_(), |
| Vector{ |
| Decl(Var("v", ty.i32())), |
| Assign(Phony(), Deref("p")), |
| Assign(Deref("p"), 42_a), |
| }); |
| Func("f2", tint::Empty, ty.void_(), |
| Vector{ |
| Decl(Var("v", ty.i32())), |
| CallStmt(Call("f1", AddressOf("v"))), |
| }); |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverAliasAnalysisTest, AliasingInsideFunction) { |
| // Test that we can use two aliased pointers inside the same function they are created in. |
| // |
| // fn f1() { |
| // var v : i32; |
| // let p1 = &v; |
| // let p2 = &v; |
| // *p1 = 42; |
| // *p2 = 42; |
| // } |
| Func("f1", tint::Empty, ty.void_(), |
| Vector{ |
| Decl(Var("v", ty.i32())), |
| Decl(Let("p1", AddressOf("v"))), |
| Decl(Let("p2", AddressOf("v"))), |
| Assign(Deref("p1"), 42_a), |
| Assign(Deref("p2"), 42_a), |
| }); |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverAliasAnalysisTest, NonOverlappingCalls) { |
| // Test that we pass the same pointer to multiple non-overlapping function calls. |
| // |
| // fn f2(p : ptr<function, i32>) { |
| // *p = 42; |
| // } |
| // fn f3(p : ptr<function, i32>) { |
| // *p = 42; |
| // } |
| // fn f1() { |
| // var v : i32; |
| // f2(&v); |
| // f3(&v); |
| // } |
| Func("f2", |
| Vector{ |
| Param("p", ty.ptr<i32>(core::AddressSpace::kFunction)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Deref("p"), 42_a), |
| }); |
| Func("f3", |
| Vector{ |
| Param("p", ty.ptr<i32>(core::AddressSpace::kFunction)), |
| }, |
| ty.void_(), |
| Vector{ |
| Assign(Deref("p"), 42_a), |
| }); |
| Func("f1", tint::Empty, ty.void_(), |
| Vector{ |
| Decl(Var("v", ty.i32())), |
| CallStmt(Call("f2", AddressOf("v"))), |
| CallStmt(Call("f3", AddressOf("v"))), |
| }); |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Atomics |
| //////////////////////////////////////////////////////////////////////////////// |
| class AtomicPointers |
| : public ResolverTestWithParam< |
| std::tuple<wgsl::BuiltinFn, wgsl::BuiltinFn, core::AddressSpace, bool /* aliased */>> { |
| protected: |
| static constexpr std::string_view kPass = "<PASS>"; |
| |
| ast::Type Ptr() { |
| auto address_space = std::get<2>(GetParam()); |
| if (address_space == storage) { |
| return ty.ptr<storage, atomic<i32>, read_write>(); |
| } else { |
| return ty.ptr<atomic<i32>>(address_space); |
| } |
| } |
| |
| void SetUp() override { |
| auto address_space = std::get<2>(GetParam()); |
| if (address_space == storage) { |
| GlobalVar("v1", address_space, read_write, ty.Of<atomic<i32>>(), // |
| Binding(0_a), Group(0_a)); |
| GlobalVar("v2", address_space, read_write, ty.Of<atomic<i32>>(), // |
| Binding(1_a), Group(0_a)); |
| } else { |
| GlobalVar("v1", address_space, ty.Of<atomic<i32>>()); |
| GlobalVar("v2", address_space, ty.Of<atomic<i32>>()); |
| } |
| } |
| |
| bool IsWrite(wgsl::BuiltinFn fn) const { |
| switch (fn) { |
| case wgsl::BuiltinFn::kAtomicStore: |
| case wgsl::BuiltinFn::kAtomicAdd: |
| case wgsl::BuiltinFn::kAtomicSub: |
| case wgsl::BuiltinFn::kAtomicMax: |
| case wgsl::BuiltinFn::kAtomicMin: |
| case wgsl::BuiltinFn::kAtomicAnd: |
| case wgsl::BuiltinFn::kAtomicOr: |
| case wgsl::BuiltinFn::kAtomicXor: |
| case wgsl::BuiltinFn::kAtomicExchange: |
| case wgsl::BuiltinFn::kAtomicCompareExchangeWeak: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| bool ShouldPass() const { |
| auto [builtin_a, builtin_b, space, aliased] = GetParam(); |
| bool fail = aliased && (IsWrite(builtin_a) || IsWrite(builtin_b)); |
| return !fail; |
| } |
| |
| const ast::Statement* CallBuiltin(wgsl::BuiltinFn fn, std::string_view ptr) { |
| switch (fn) { |
| case wgsl::BuiltinFn::kAtomicLoad: |
| return CallStmt(Call(fn, ptr)); |
| case wgsl::BuiltinFn::kAtomicStore: |
| case wgsl::BuiltinFn::kAtomicAdd: |
| case wgsl::BuiltinFn::kAtomicSub: |
| case wgsl::BuiltinFn::kAtomicMax: |
| case wgsl::BuiltinFn::kAtomicMin: |
| case wgsl::BuiltinFn::kAtomicAnd: |
| case wgsl::BuiltinFn::kAtomicOr: |
| case wgsl::BuiltinFn::kAtomicXor: |
| case wgsl::BuiltinFn::kAtomicExchange: |
| return CallStmt(Call(fn, ptr, 42_a)); |
| case wgsl::BuiltinFn::kAtomicCompareExchangeWeak: |
| return CallStmt(Call(fn, ptr, 10_a, 42_a)); |
| default: |
| TINT_UNIMPLEMENTED() << fn; |
| } |
| } |
| |
| std::string Run() { |
| if (r()->Resolve()) { |
| return std::string(kPass); |
| } |
| return r()->error(); |
| } |
| }; |
| |
| TEST_P(AtomicPointers, CallDirect) { |
| // var<ADDRESS_SPACE> v1 : atomic<i32>; |
| // var<ADDRESS_SPACE> v2 : atomic<i32>; |
| // |
| // fn caller() { |
| // callee(&v1, aliased ? &v1 : &v2); |
| // } |
| // |
| // fn callee(p1 : PTR, p2 : PTR) { |
| // <builtin-a>(p1); |
| // <builtin-b>(p2); |
| // } |
| auto [builtin_a, builtin_b, space, aliased] = GetParam(); |
| |
| Func("caller", tint::Empty, ty.void_(), |
| Vector{ |
| CallStmt(Call("callee", // |
| AddressOf(Source{{12, 34}}, "v1"), |
| AddressOf(Source{{56, 78}}, aliased ? "v1" : "v2"))), |
| }); |
| |
| Func("callee", Vector{Param("p1", Ptr()), Param("p2", Ptr())}, ty.void_(), |
| Vector{ |
| CallBuiltin(builtin_a, "p1"), |
| CallBuiltin(builtin_b, "p2"), |
| }); |
| |
| EXPECT_EQ(Run(), ShouldPass() ? kPass : R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(AtomicPointers, CallThroughChain) { |
| // var<ADDRESS_SPACE> v1 : atomic<i32>; |
| // var<ADDRESS_SPACE> v2 : atomic<i32>; |
| // |
| // fn caller() { |
| // callee(&v1, aliased ? &v1 : &v2); |
| // } |
| // |
| // fn f2(p1 : PTR, p2 : PTR) { |
| // f1(p1, p2); |
| // } |
| // |
| // fn f1(p1 : PTR, p2 : PTR) { |
| // callee(p1, p2); |
| // } |
| // |
| // fn callee(p1 : PTR, p2 : PTR) { |
| // <builtin-a>(p1); |
| // <builtin-b>(p2); |
| // } |
| auto [builtin_a, builtin_b, space, aliased] = GetParam(); |
| |
| Func("caller", tint::Empty, ty.void_(), |
| Vector{ |
| CallStmt(Call("callee", // |
| AddressOf(Source{{12, 34}}, "v1"), |
| AddressOf(Source{{56, 78}}, aliased ? "v1" : "v2"))), |
| }); |
| |
| Func("f2", Vector{Param("p1", Ptr()), Param("p2", Ptr())}, ty.void_(), |
| Vector{ |
| CallStmt(Call("f1", "p1", "p2")), |
| }); |
| |
| Func("f1", Vector{Param("p1", Ptr()), Param("p2", Ptr())}, ty.void_(), |
| Vector{ |
| CallStmt(Call("callee", "p1", "p2")), |
| }); |
| |
| Func("callee", Vector{Param("p1", Ptr()), Param("p2", Ptr())}, ty.void_(), |
| Vector{ |
| CallBuiltin(builtin_a, "p1"), |
| CallBuiltin(builtin_b, "p2"), |
| }); |
| |
| EXPECT_EQ(Run(), ShouldPass() ? kPass : R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(AtomicPointers, ReadWriteAcrossDifferentFunctions) { |
| // var<ADDRESS_SPACE> v1 : atomic<i32>; |
| // var<ADDRESS_SPACE> v2 : atomic<i32>; |
| // |
| // fn caller() { |
| // f(&v1, aliased ? &v1 : &v2); |
| // } |
| // |
| // fn f(p1 : PTR, p2 : PTR) { |
| // f1(p1); |
| // f2(p2); |
| // } |
| // |
| // fn f1(p : PTR) { |
| // <builtin-a>(p); |
| // } |
| // |
| // fn f2(p : PTR) { |
| // <builtin-b>(p); |
| // } |
| auto [builtin_a, builtin_b, space, aliased] = GetParam(); |
| |
| Func("caller", tint::Empty, ty.void_(), |
| Vector{ |
| CallStmt(Call("f", // |
| AddressOf(Source{{12, 34}}, "v1"), |
| AddressOf(Source{{56, 78}}, aliased ? "v1" : "v2"))), |
| }); |
| |
| Func("f", Vector{Param("p1", Ptr()), Param("p2", Ptr())}, ty.void_(), |
| Vector{ |
| CallStmt(Call("f1", "p1")), |
| CallStmt(Call("f2", "p2")), |
| }); |
| |
| Func("f1", Vector{Param("p", Ptr())}, ty.void_(), |
| Vector{ |
| CallBuiltin(builtin_a, "p"), |
| }); |
| |
| Func("f2", Vector{Param("p", Ptr())}, ty.void_(), |
| Vector{ |
| CallBuiltin(builtin_b, "p"), |
| }); |
| |
| EXPECT_EQ(Run(), ShouldPass() ? kPass : R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| std::array kAtomicFns{ |
| wgsl::BuiltinFn::kAtomicLoad, |
| wgsl::BuiltinFn::kAtomicStore, |
| wgsl::BuiltinFn::kAtomicAdd, |
| wgsl::BuiltinFn::kAtomicSub, |
| wgsl::BuiltinFn::kAtomicMax, |
| wgsl::BuiltinFn::kAtomicMin, |
| wgsl::BuiltinFn::kAtomicAnd, |
| wgsl::BuiltinFn::kAtomicOr, |
| wgsl::BuiltinFn::kAtomicXor, |
| wgsl::BuiltinFn::kAtomicExchange, |
| wgsl::BuiltinFn::kAtomicCompareExchangeWeak, |
| }; |
| |
| INSTANTIATE_TEST_SUITE_P(ResolverAliasAnalysisTest, |
| AtomicPointers, |
| ::testing::Combine(::testing::ValuesIn(kAtomicFns), |
| ::testing::ValuesIn(kAtomicFns), |
| ::testing::Values(core::AddressSpace::kWorkgroup, |
| core::AddressSpace::kStorage), |
| ::testing::Values(true, false))); |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // WorkgroupUniformLoad |
| //////////////////////////////////////////////////////////////////////////////// |
| enum class WorkgroupUniformLoadAction { |
| kRead, |
| kWrite, |
| kWorkgroupUniformLoad, |
| }; |
| |
| std::array kWorkgroupUniformLoadActions{ |
| WorkgroupUniformLoadAction::kRead, |
| WorkgroupUniformLoadAction::kWrite, |
| WorkgroupUniformLoadAction::kWorkgroupUniformLoad, |
| }; |
| |
| class WorkgroupUniformLoad |
| : public ResolverTestWithParam< |
| std::tuple<WorkgroupUniformLoadAction, WorkgroupUniformLoadAction, bool>> { |
| protected: |
| static constexpr std::string_view kPass = "<PASS>"; |
| |
| void SetUp() override { |
| GlobalVar("v1", workgroup, ty.i32()); |
| GlobalVar("v2", workgroup, ty.i32()); |
| } |
| |
| const ast::Statement* Do(WorkgroupUniformLoadAction action, std::string_view ptr) { |
| switch (action) { |
| case WorkgroupUniformLoadAction::kRead: |
| return Assign(Phony(), Deref(ptr)); |
| case WorkgroupUniformLoadAction::kWrite: |
| return Assign(Deref(ptr), 42_a); |
| case WorkgroupUniformLoadAction::kWorkgroupUniformLoad: |
| return Assign(Phony(), Call(wgsl::BuiltinFn::kWorkgroupUniformLoad, ptr)); |
| } |
| return nullptr; |
| } |
| |
| bool IsWrite(WorkgroupUniformLoadAction action) const { |
| return action == WorkgroupUniformLoadAction::kWrite; |
| } |
| |
| bool ShouldPass() const { |
| auto [action_a, action_b, aliased] = GetParam(); |
| bool fail = aliased && (IsWrite(action_a) || IsWrite(action_b)); |
| return !fail; |
| } |
| |
| std::string Run() { |
| if (r()->Resolve()) { |
| return std::string(kPass); |
| } |
| return r()->error(); |
| } |
| }; |
| |
| TEST_P(WorkgroupUniformLoad, CallDirect) { |
| // var<workgroup> v1 : i32; |
| // var<workgroup> v2 : i32; |
| // |
| // fn caller() { |
| // callee(&v1, aliased ? &v1 : &v2); |
| // } |
| // |
| // fn callee(p1 : PTR, p2 : PTR) { |
| // <action-a>(p1); |
| // <action-b>(p2); |
| // } |
| auto [action_a, action_b, aliased] = GetParam(); |
| |
| Func("caller", tint::Empty, ty.void_(), |
| Vector{ |
| CallStmt(Call("callee", // |
| AddressOf(Source{{12, 34}}, "v1"), |
| AddressOf(Source{{56, 78}}, aliased ? "v1" : "v2"))), |
| }); |
| |
| Func("callee", |
| Vector{Param("p1", ty.ptr<workgroup, i32>()), Param("p2", ty.ptr<workgroup, i32>())}, |
| ty.void_(), |
| Vector{ |
| Do(action_a, "p1"), |
| Do(action_b, "p2"), |
| }); |
| |
| EXPECT_EQ(Run(), ShouldPass() ? kPass : R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(WorkgroupUniformLoad, CallThroughChain) { |
| // var<workgroup> v1 : i32; |
| // var<workgroup> v2 : i32; |
| // |
| // fn caller() { |
| // callee(&v1, aliased ? &v1 : &v2); |
| // } |
| // |
| // fn f2(p1 : PTR, p2 : PTR) { |
| // f1(p1, p2); |
| // } |
| // |
| // fn f1(p1 : PTR, p2 : PTR) { |
| // callee(p1, p2); |
| // } |
| // |
| // fn callee(p1 : PTR, p2 : PTR) { |
| // <action-a>(p1); |
| // <action-b>(p2); |
| // } |
| auto [action_a, action_b, aliased] = GetParam(); |
| |
| Func("caller", tint::Empty, ty.void_(), |
| Vector{ |
| CallStmt(Call("callee", // |
| AddressOf(Source{{12, 34}}, "v1"), |
| AddressOf(Source{{56, 78}}, aliased ? "v1" : "v2"))), |
| }); |
| |
| Func("f2", Vector{Param("p1", ty.ptr<workgroup, i32>()), Param("p2", ty.ptr<workgroup, i32>())}, |
| ty.void_(), |
| Vector{ |
| CallStmt(Call("f1", "p1", "p2")), |
| }); |
| |
| Func("f1", Vector{Param("p1", ty.ptr<workgroup, i32>()), Param("p2", ty.ptr<workgroup, i32>())}, |
| ty.void_(), |
| Vector{ |
| CallStmt(Call("callee", "p1", "p2")), |
| }); |
| |
| Func("callee", |
| Vector{Param("p1", ty.ptr<workgroup, i32>()), Param("p2", ty.ptr<workgroup, i32>())}, |
| ty.void_(), |
| Vector{ |
| Do(action_a, "p1"), |
| Do(action_b, "p2"), |
| }); |
| |
| EXPECT_EQ(Run(), ShouldPass() ? kPass : R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| TEST_P(WorkgroupUniformLoad, ReadWriteAcrossDifferentFunctions) { |
| // var<workgroup> v1 : i32; |
| // var<workgroup> v2 : i32; |
| // |
| // fn caller() { |
| // f(&v1, aliased ? &v1 : &v2); |
| // } |
| // |
| // fn f(p1 : PTR, p2 : PTR) { |
| // f1(p1); |
| // f2(p2); |
| // } |
| // |
| // fn f1(p : PTR) { |
| // <action-a>(p); |
| // } |
| // |
| // fn f2(p : PTR) { |
| // <action-b>(p); |
| // } |
| auto [action_a, action_b, aliased] = GetParam(); |
| |
| Func("caller", tint::Empty, ty.void_(), |
| Vector{ |
| CallStmt(Call("f", // |
| AddressOf(Source{{12, 34}}, "v1"), |
| AddressOf(Source{{56, 78}}, aliased ? "v1" : "v2"))), |
| }); |
| |
| Func("f", Vector{Param("p1", ty.ptr<workgroup, i32>()), Param("p2", ty.ptr<workgroup, i32>())}, |
| ty.void_(), |
| Vector{ |
| CallStmt(Call("f1", "p1")), |
| CallStmt(Call("f2", "p2")), |
| }); |
| |
| Func("f1", Vector{Param("p", ty.ptr<workgroup, i32>())}, ty.void_(), Vector{Do(action_a, "p")}); |
| |
| Func("f2", Vector{Param("p", ty.ptr<workgroup, i32>())}, ty.void_(), Vector{Do(action_b, "p")}); |
| |
| EXPECT_EQ(Run(), ShouldPass() ? kPass : R"(56:78 error: invalid aliased pointer argument |
| 12:34 note: aliases with another argument passed here)"); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(ResolverAliasAnalysisTest, |
| WorkgroupUniformLoad, |
| ::testing::Combine(::testing::ValuesIn(kWorkgroupUniformLoadActions), |
| ::testing::ValuesIn(kWorkgroupUniformLoadActions), |
| ::testing::Values(true, false))); |
| |
| } // namespace |
| } // namespace tint::resolver |
