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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,
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// 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 "gmock/gmock.h"
using namespace tint::core::number_suffixes; // NOLINT
namespace tint::resolver {
namespace {
using ResolverSubgroupsExtensionTest = ResolverTest;
// Using a subgroup_size builtin attribute without chromium_experimental_subgroups enabled should
// fail.
TEST_F(ResolverSubgroupsExtensionTest, UseSubgroupSizeAttribWithoutExtensionError) {
Structure("Inputs",
Vector{
Member("a", ty.u32(), Vector{Builtin(core::BuiltinValue::kSubgroupSize)}),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(error: use of @builtin(subgroup_size) attribute requires enabling extension 'chromium_experimental_subgroups')");
}
// Using a subgroup_invocation_id builtin attribute without chromium_experimental_subgroups enabled
// should fail.
TEST_F(ResolverSubgroupsExtensionTest, UseSubgroupInvocationIdAttribWithoutExtensionError) {
Structure("Inputs",
Vector{
Member("a", ty.u32(), Vector{Builtin(core::BuiltinValue::kSubgroupInvocationId)}),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(error: use of @builtin(subgroup_invocation_id) attribute requires enabling extension 'chromium_experimental_subgroups')");
}
// Using an i32 for a subgroup_size builtin input should fail.
TEST_F(ResolverSubgroupsExtensionTest, SubgroupSizeI32Error) {
Enable(wgsl::Extension::kChromiumExperimentalSubgroups);
Structure("Inputs",
Vector{
Member("a", ty.i32(), Vector{Builtin(core::BuiltinValue::kSubgroupSize)}),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "error: store type of @builtin(subgroup_size) must be 'u32'");
}
// Using an i32 for a subgroup_invocation_id builtin input should fail.
TEST_F(ResolverSubgroupsExtensionTest, SubgroupInvocationIdI32Error) {
Enable(wgsl::Extension::kChromiumExperimentalSubgroups);
Structure("Inputs",
Vector{
Member("a", ty.i32(), Vector{Builtin(core::BuiltinValue::kSubgroupInvocationId)}),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "error: store type of @builtin(subgroup_invocation_id) must be 'u32'");
}
// Using builtin(subgroup_size) for anything other than a compute shader input should fail.
TEST_F(ResolverSubgroupsExtensionTest, SubgroupSizeFragmentShader) {
Enable(wgsl::Extension::kChromiumExperimentalSubgroups);
Func("main",
Vector{Param("size", ty.u32(), Vector{Builtin(core::BuiltinValue::kSubgroupSize)})},
ty.void_(), Empty, Vector{Stage(ast::PipelineStage::kFragment)});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"error: @builtin(subgroup_size) is only valid as a compute shader input");
}
// Using builtin(subgroup_invocation_id) for anything other than a compute shader input should fail.
TEST_F(ResolverSubgroupsExtensionTest, SubgroupInvocationIdFragmentShader) {
Enable(wgsl::Extension::kChromiumExperimentalSubgroups);
Func("main",
Vector{Param("id", ty.u32(), Vector{Builtin(core::BuiltinValue::kSubgroupInvocationId)})},
ty.void_(), Empty, Vector{Stage(ast::PipelineStage::kFragment)});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"error: @builtin(subgroup_invocation_id) is only valid as a compute shader input");
}
} // namespace
} // namespace tint::resolver