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// Copyright 2021 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/builtin_texture_helper_test.h"
#include "src/tint/resolver/resolver_test_helper.h"
using namespace tint::number_suffixes; // NOLINT
namespace tint::resolver {
namespace {
using ResolverBuiltinValidationTest = ResolverTest;
TEST_F(ResolverBuiltinValidationTest, FunctionTypeMustMatchReturnStatementType_void_fail) {
// fn func { return workgroupBarrier(); }
Func("func", {}, ty.void_(),
{
Return(Call(Source{Source::Location{12, 34}}, "workgroupBarrier")),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: builtin 'workgroupBarrier' does not return a value");
}
TEST_F(ResolverBuiltinValidationTest, InvalidPipelineStageDirect) {
// @stage(compute) @workgroup_size(1) fn func { return dpdx(1.0); }
auto* dpdx =
create<ast::CallExpression>(Source{{3, 4}}, Expr("dpdx"), ast::ExpressionList{Expr(1_f)});
Func(Source{{1, 2}}, "func", ast::VariableList{}, ty.void_(), {CallStmt(dpdx)},
{Stage(ast::PipelineStage::kCompute), WorkgroupSize(1_i)});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "3:4 error: built-in cannot be used by compute pipeline stage");
}
TEST_F(ResolverBuiltinValidationTest, InvalidPipelineStageIndirect) {
// fn f0 { return dpdx(1.0); }
// fn f1 { f0(); }
// fn f2 { f1(); }
// @stage(compute) @workgroup_size(1) fn main { return f2(); }
auto* dpdx =
create<ast::CallExpression>(Source{{3, 4}}, Expr("dpdx"), ast::ExpressionList{Expr(1_f)});
Func(Source{{1, 2}}, "f0", {}, ty.void_(), {CallStmt(dpdx)});
Func(Source{{3, 4}}, "f1", {}, ty.void_(), {CallStmt(Call("f0"))});
Func(Source{{5, 6}}, "f2", {}, ty.void_(), {CallStmt(Call("f1"))});
Func(Source{{7, 8}}, "main", {}, ty.void_(), {CallStmt(Call("f2"))},
{Stage(ast::PipelineStage::kCompute), WorkgroupSize(1_i)});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(3:4 error: built-in cannot be used by compute pipeline stage
1:2 note: called by function 'f0'
3:4 note: called by function 'f1'
5:6 note: called by function 'f2'
7:8 note: called by entry point 'main')");
}
TEST_F(ResolverBuiltinValidationTest, BuiltinRedeclaredAsFunction) {
Func(Source{{12, 34}}, "mix", {}, ty.i32(), {});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: 'mix' is a builtin and cannot be redeclared as a function)");
}
TEST_F(ResolverBuiltinValidationTest, BuiltinRedeclaredAsGlobalLet) {
GlobalConst(Source{{12, 34}}, "mix", ty.i32(), Expr(1_i));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: 'mix' is a builtin and cannot be redeclared as a module-scope let)");
}
TEST_F(ResolverBuiltinValidationTest, BuiltinRedeclaredAsGlobalVar) {
Global(Source{{12, 34}}, "mix", ty.i32(), Expr(1_i), ast::StorageClass::kPrivate);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: 'mix' is a builtin and cannot be redeclared as a module-scope var)");
}
TEST_F(ResolverBuiltinValidationTest, BuiltinRedeclaredAsAlias) {
Alias(Source{{12, 34}}, "mix", ty.i32());
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: 'mix' is a builtin and cannot be redeclared as an alias)");
}
TEST_F(ResolverBuiltinValidationTest, BuiltinRedeclaredAsStruct) {
Structure(Source{{12, 34}}, "mix", {Member("m", ty.i32())});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: 'mix' is a builtin and cannot be redeclared as a struct)");
}
namespace texture_constexpr_args {
using TextureOverloadCase = ast::builtin::test::TextureOverloadCase;
using ValidTextureOverload = ast::builtin::test::ValidTextureOverload;
using TextureKind = ast::builtin::test::TextureKind;
using TextureDataType = ast::builtin::test::TextureDataType;
static std::vector<TextureOverloadCase> TextureCases(
std::unordered_set<ValidTextureOverload> overloads) {
std::vector<TextureOverloadCase> cases;
for (auto c : TextureOverloadCase::ValidCases()) {
if (overloads.count(c.overload)) {
cases.push_back(c);
}
}
return cases;
}
enum class Position {
kFirst,
kLast,
};
struct Parameter {
const char* const name;
const Position position;
int min;
int max;
};
class Constexpr {
public:
enum class Kind {
kScalar,
kVec2,
kVec3,
kVec3_Scalar_Vec2,
kVec3_Vec2_Scalar,
kEmptyVec2,
kEmptyVec3,
};
Constexpr(int32_t invalid_idx, Kind k, int32_t x = 0, int32_t y = 0, int32_t z = 0)
: invalid_index(invalid_idx), kind(k), values{x, y, z} {}
const ast::Expression* operator()(Source src, ProgramBuilder& b) {
switch (kind) {
case Kind::kScalar:
return b.Expr(src, i32(values[0]));
case Kind::kVec2:
return b.Construct(src, b.ty.vec2<i32>(), i32(values[0]), i32(values[1]));
case Kind::kVec3:
return b.Construct(src, b.ty.vec3<i32>(), i32(values[0]), i32(values[1]),
i32(values[2]));
case Kind::kVec3_Scalar_Vec2:
return b.Construct(src, b.ty.vec3<i32>(), i32(values[0]),
b.vec2<i32>(i32(values[1]), i32(values[2])));
case Kind::kVec3_Vec2_Scalar:
return b.Construct(src, b.ty.vec3<i32>(),
b.vec2<i32>(i32(values[0]), i32(values[1])), i32(values[2]));
case Kind::kEmptyVec2:
return b.Construct(src, b.ty.vec2<i32>());
case Kind::kEmptyVec3:
return b.Construct(src, b.ty.vec3<i32>());
}
return nullptr;
}
static const constexpr int32_t kValid = -1;
const int32_t invalid_index; // Expected error value, or kValid
const Kind kind;
const std::array<int32_t, 3> values;
};
static std::ostream& operator<<(std::ostream& out, Parameter param) {
return out << param.name;
}
static std::ostream& operator<<(std::ostream& out, Constexpr expr) {
switch (expr.kind) {
case Constexpr::Kind::kScalar:
return out << expr.values[0];
case Constexpr::Kind::kVec2:
return out << "vec2(" << expr.values[0] << ", " << expr.values[1] << ")";
case Constexpr::Kind::kVec3:
return out << "vec3(" << expr.values[0] << ", " << expr.values[1] << ", "
<< expr.values[2] << ")";
case Constexpr::Kind::kVec3_Scalar_Vec2:
return out << "vec3(" << expr.values[0] << ", vec2(" << expr.values[1] << ", "
<< expr.values[2] << "))";
case Constexpr::Kind::kVec3_Vec2_Scalar:
return out << "vec3(vec2(" << expr.values[0] << ", " << expr.values[1] << "), "
<< expr.values[2] << ")";
case Constexpr::Kind::kEmptyVec2:
return out << "vec2()";
case Constexpr::Kind::kEmptyVec3:
return out << "vec3()";
}
return out;
}
using BuiltinTextureConstExprArgValidationTest =
ResolverTestWithParam<std::tuple<TextureOverloadCase, Parameter, Constexpr>>;
TEST_P(BuiltinTextureConstExprArgValidationTest, Immediate) {
auto& p = GetParam();
auto overload = std::get<0>(p);
auto param = std::get<1>(p);
auto expr = std::get<2>(p);
overload.BuildTextureVariable(this);
overload.BuildSamplerVariable(this);
auto args = overload.args(this);
auto*& arg_to_replace = (param.position == Position::kFirst) ? args.front() : args.back();
// BuildTextureVariable() uses a Literal for scalars, and a CallExpression for
// a vector constructor.
bool is_vector = arg_to_replace->Is<ast::CallExpression>();
// Make the expression to be replaced, reachable. This keeps the resolver
// happy.
WrapInFunction(arg_to_replace);
arg_to_replace = expr(Source{{12, 34}}, *this);
// Call the builtin with the constexpr argument replaced
Func("func", {}, ty.void_(), {CallStmt(Call(overload.function, args))},
{Stage(ast::PipelineStage::kFragment)});
if (expr.invalid_index == Constexpr::kValid) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
std::stringstream err;
if (is_vector) {
err << "12:34 error: each component of the " << param.name
<< " argument must be at least " << param.min << " and at most " << param.max
<< ". " << param.name << " component " << expr.invalid_index << " is "
<< std::to_string(expr.values[expr.invalid_index]);
} else {
err << "12:34 error: the " << param.name << " argument must be at least " << param.min
<< " and at most " << param.max << ". " << param.name << " is "
<< std::to_string(expr.values[expr.invalid_index]);
}
EXPECT_EQ(r()->error(), err.str());
}
}
TEST_P(BuiltinTextureConstExprArgValidationTest, GlobalConst) {
auto& p = GetParam();
auto overload = std::get<0>(p);
auto param = std::get<1>(p);
auto expr = std::get<2>(p);
// Build the global texture and sampler variables
overload.BuildTextureVariable(this);
overload.BuildSamplerVariable(this);
// Build the module-scope let 'G' with the offset value
GlobalConst("G", nullptr, expr({}, *this));
auto args = overload.args(this);
auto*& arg_to_replace = (param.position == Position::kFirst) ? args.front() : args.back();
// Make the expression to be replaced, reachable. This keeps the resolver
// happy.
WrapInFunction(arg_to_replace);
arg_to_replace = Expr(Source{{12, 34}}, "G");
// Call the builtin with the constexpr argument replaced
Func("func", {}, ty.void_(), {CallStmt(Call(overload.function, args))},
{Stage(ast::PipelineStage::kFragment)});
EXPECT_FALSE(r()->Resolve());
std::stringstream err;
err << "12:34 error: the " << param.name << " argument must be a const_expression";
EXPECT_EQ(r()->error(), err.str());
}
INSTANTIATE_TEST_SUITE_P(
Offset2D,
BuiltinTextureConstExprArgValidationTest,
testing::Combine(testing::ValuesIn(TextureCases({
ValidTextureOverload::kSample2dOffsetF32,
ValidTextureOverload::kSample2dArrayOffsetF32,
ValidTextureOverload::kSampleDepth2dOffsetF32,
ValidTextureOverload::kSampleDepth2dArrayOffsetF32,
ValidTextureOverload::kSampleBias2dOffsetF32,
ValidTextureOverload::kSampleBias2dArrayOffsetF32,
ValidTextureOverload::kSampleLevel2dOffsetF32,
ValidTextureOverload::kSampleLevel2dArrayOffsetF32,
ValidTextureOverload::kSampleLevelDepth2dOffsetF32,
ValidTextureOverload::kSampleLevelDepth2dArrayOffsetF32,
ValidTextureOverload::kSampleGrad2dOffsetF32,
ValidTextureOverload::kSampleGrad2dArrayOffsetF32,
ValidTextureOverload::kSampleCompareDepth2dOffsetF32,
ValidTextureOverload::kSampleCompareDepth2dArrayOffsetF32,
ValidTextureOverload::kSampleCompareLevelDepth2dOffsetF32,
ValidTextureOverload::kSampleCompareLevelDepth2dArrayOffsetF32,
})),
testing::Values(Parameter{"offset", Position::kLast, -8, 7}),
testing::Values(Constexpr{Constexpr::kValid, Constexpr::Kind::kEmptyVec2},
Constexpr{Constexpr::kValid, Constexpr::Kind::kVec2, -1, 1},
Constexpr{Constexpr::kValid, Constexpr::Kind::kVec2, 7, -8},
Constexpr{0, Constexpr::Kind::kVec2, 8, 0},
Constexpr{1, Constexpr::Kind::kVec2, 0, 8},
Constexpr{0, Constexpr::Kind::kVec2, -9, 0},
Constexpr{1, Constexpr::Kind::kVec2, 0, -9},
Constexpr{0, Constexpr::Kind::kVec2, 8, 8},
Constexpr{0, Constexpr::Kind::kVec2, -9, -9})));
INSTANTIATE_TEST_SUITE_P(
Offset3D,
BuiltinTextureConstExprArgValidationTest,
testing::Combine(testing::ValuesIn(TextureCases({
ValidTextureOverload::kSample3dOffsetF32,
ValidTextureOverload::kSampleBias3dOffsetF32,
ValidTextureOverload::kSampleLevel3dOffsetF32,
ValidTextureOverload::kSampleGrad3dOffsetF32,
})),
testing::Values(Parameter{"offset", Position::kLast, -8, 7}),
testing::Values(Constexpr{Constexpr::kValid, Constexpr::Kind::kEmptyVec3},
Constexpr{Constexpr::kValid, Constexpr::Kind::kVec3, 0, 0, 0},
Constexpr{Constexpr::kValid, Constexpr::Kind::kVec3, 7, -8, 7},
Constexpr{0, Constexpr::Kind::kVec3, 10, 0, 0},
Constexpr{1, Constexpr::Kind::kVec3, 0, 10, 0},
Constexpr{2, Constexpr::Kind::kVec3, 0, 0, 10},
Constexpr{0, Constexpr::Kind::kVec3, 10, 11, 12},
Constexpr{0, Constexpr::Kind::kVec3_Scalar_Vec2, 10, 0, 0},
Constexpr{1, Constexpr::Kind::kVec3_Scalar_Vec2, 0, 10, 0},
Constexpr{2, Constexpr::Kind::kVec3_Scalar_Vec2, 0, 0, 10},
Constexpr{0, Constexpr::Kind::kVec3_Scalar_Vec2, 10, 11, 12},
Constexpr{0, Constexpr::Kind::kVec3_Vec2_Scalar, 10, 0, 0},
Constexpr{1, Constexpr::Kind::kVec3_Vec2_Scalar, 0, 10, 0},
Constexpr{2, Constexpr::Kind::kVec3_Vec2_Scalar, 0, 0, 10},
Constexpr{0, Constexpr::Kind::kVec3_Vec2_Scalar, 10, 11,
12})));
INSTANTIATE_TEST_SUITE_P(
Component,
BuiltinTextureConstExprArgValidationTest,
testing::Combine(testing::ValuesIn(TextureCases({ValidTextureOverload::kGather2dF32,
ValidTextureOverload::kGather2dOffsetF32,
ValidTextureOverload::kGather2dArrayF32,
ValidTextureOverload::kGather2dArrayOffsetF32,
ValidTextureOverload::kGatherCubeF32,
ValidTextureOverload::kGatherCubeArrayF32})),
testing::Values(Parameter{"component", Position::kFirst, 0, 3}),
testing::Values(Constexpr{Constexpr::kValid, Constexpr::Kind::kScalar, 0},
Constexpr{Constexpr::kValid, Constexpr::Kind::kScalar, 1},
Constexpr{Constexpr::kValid, Constexpr::Kind::kScalar, 2},
Constexpr{Constexpr::kValid, Constexpr::Kind::kScalar, 3},
Constexpr{0, Constexpr::Kind::kScalar, 4},
Constexpr{0, Constexpr::Kind::kScalar, 123},
Constexpr{0, Constexpr::Kind::kScalar, -1})));
} // namespace texture_constexpr_args
// TODO(crbug.com/tint/1497): Update or remove ResolverDP4aExtensionValidationTest when the
// experimental extension chromium_experimental_dp4a is not needed.
using ResolverDP4aExtensionValidationTest = ResolverTest;
TEST_F(ResolverDP4aExtensionValidationTest, Dot4I8PackedWithExtension) {
// enable chromium_experimental_dp4a;
// fn func { return dot4I8Packed(1u, 2u); }
Enable(ast::Extension::kChromiumExperimentalDP4a);
Func("func", {}, ty.i32(),
{
Return(Call(Source{Source::Location{12, 34}}, "dot4I8Packed",
ast::ExpressionList{Expr(1_u), Expr(2_u)})),
});
EXPECT_TRUE(r()->Resolve());
}
TEST_F(ResolverDP4aExtensionValidationTest, Dot4I8PackedWithoutExtension) {
// fn func { return dot4I8Packed(1u, 2u); }
Func("func", {}, ty.i32(),
{
Return(Call(Source{Source::Location{12, 34}}, "dot4I8Packed",
ast::ExpressionList{Expr(1_u), Expr(2_u)})),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(12:34 error: cannot call built-in function 'dot4I8Packed' without extension chromium_experimental_dp4a)");
}
TEST_F(ResolverDP4aExtensionValidationTest, Dot4U8PackedWithExtension) {
// enable chromium_experimental_dp4a;
// fn func { return dot4U8Packed(1u, 2u); }
Enable(ast::Extension::kChromiumExperimentalDP4a);
Func("func", {}, ty.u32(),
{
Return(Call(Source{Source::Location{12, 34}}, "dot4U8Packed",
ast::ExpressionList{Expr(1_u), Expr(2_u)})),
});
EXPECT_TRUE(r()->Resolve());
}
TEST_F(ResolverDP4aExtensionValidationTest, Dot4U8PackedWithoutExtension) {
// fn func { return dot4U8Packed(1u, 2u); }
Func("func", {}, ty.u32(),
{
Return(Call(Source{Source::Location{12, 34}}, "dot4U8Packed",
ast::ExpressionList{Expr(1_u), Expr(2_u)})),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(12:34 error: cannot call built-in function 'dot4U8Packed' without extension chromium_experimental_dp4a)");
}
} // namespace
} // namespace tint::resolver