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dawn-cmake/src/writer/msl/generator_impl_function_test.cc
Ben Clayton 321e5a9d7e ast: Remove Variable constructor that doesn't take a source 
set_source() will be removed, so sources will only be specifiable at construction time.

Bug: tint:390
Change-Id: I5c79efd3fa501ebd9308f7f93cfb77bc12198047
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/35009
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
2020-12-07 21:08:07 +00:00

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// Copyright 2020 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 "gtest/gtest.h"
#include "src/ast/assignment_statement.h"
#include "src/ast/binary_expression.h"
#include "src/ast/binding_decoration.h"
#include "src/ast/call_expression.h"
#include "src/ast/decorated_variable.h"
#include "src/ast/float_literal.h"
#include "src/ast/function.h"
#include "src/ast/identifier_expression.h"
#include "src/ast/if_statement.h"
#include "src/ast/location_decoration.h"
#include "src/ast/member_accessor_expression.h"
#include "src/ast/module.h"
#include "src/ast/pipeline_stage.h"
#include "src/ast/return_statement.h"
#include "src/ast/scalar_constructor_expression.h"
#include "src/ast/set_decoration.h"
#include "src/ast/sint_literal.h"
#include "src/ast/stage_decoration.h"
#include "src/ast/struct.h"
#include "src/ast/struct_block_decoration.h"
#include "src/ast/struct_member.h"
#include "src/ast/struct_member_decoration.h"
#include "src/ast/struct_member_offset_decoration.h"
#include "src/ast/type/access_control_type.h"
#include "src/ast/type/array_type.h"
#include "src/ast/type/f32_type.h"
#include "src/ast/type/i32_type.h"
#include "src/ast/type/struct_type.h"
#include "src/ast/type/vector_type.h"
#include "src/ast/type/void_type.h"
#include "src/ast/variable.h"
#include "src/ast/variable_decl_statement.h"
#include "src/type_determiner.h"
#include "src/writer/msl/generator_impl.h"
#include "src/writer/msl/test_helper.h"
namespace tint {
namespace writer {
namespace msl {
namespace {
using MslGeneratorImplTest = TestHelper;
TEST_F(MslGeneratorImplTest, Emit_Function) {
ast::type::Void void_type;
auto* body = create<ast::BlockStatement>();
body->append(create<ast::ReturnStatement>());
auto* func =
create<ast::Function>(Source{}, "my_func", ast::VariableList{},
&void_type, body, ast::FunctionDecorationList{});
mod.AddFunction(func);
gen.increment_indent();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
void my_func() {
return;
}
)");
}
TEST_F(MslGeneratorImplTest, Emit_Function_Name_Collision) {
ast::type::Void void_type;
auto* body = create<ast::BlockStatement>();
body->append(create<ast::ReturnStatement>());
auto* func =
create<ast::Function>(Source{}, "main", ast::VariableList{}, &void_type,
body, ast::FunctionDecorationList{});
mod.AddFunction(func);
gen.increment_indent();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
void main_tint_0() {
return;
}
)");
}
TEST_F(MslGeneratorImplTest, Emit_Function_WithParams) {
ast::type::F32 f32;
ast::type::I32 i32;
ast::VariableList params;
params.push_back(
create<ast::Variable>(Source{}, "a", ast::StorageClass::kNone, &f32));
params.push_back(
create<ast::Variable>(Source{}, "b", ast::StorageClass::kNone, &i32));
ast::type::Void void_type;
auto* body = create<ast::BlockStatement>();
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(Source{}, "my_func", params, &void_type,
body, ast::FunctionDecorationList{});
mod.AddFunction(func);
gen.increment_indent();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
void my_func(float a, int b) {
return;
}
)");
}
TEST_F(MslGeneratorImplTest, Emit_FunctionDecoration_EntryPoint_WithInOutVars) {
ast::type::Void void_type;
ast::type::F32 f32;
auto* foo_var = create<ast::DecoratedVariable>(
create<ast::Variable>(Source{}, "foo", ast::StorageClass::kInput, &f32));
foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
auto* bar_var = create<ast::DecoratedVariable>(
create<ast::Variable>(Source{}, "bar", ast::StorageClass::kOutput, &f32));
bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
td.RegisterVariableForTesting(foo_var);
td.RegisterVariableForTesting(bar_var);
mod.AddGlobalVariable(foo_var);
mod.AddGlobalVariable(bar_var);
ast::VariableList params;
auto* body = create<ast::BlockStatement>();
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("bar"),
create<ast::IdentifierExpression>("foo")));
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(
Source{}, "frag_main", params, &void_type, body,
ast::FunctionDecorationList{create<ast::StageDecoration>(
ast::PipelineStage::kFragment, Source{})});
mod.AddFunction(func);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct frag_main_in {
float foo [[user(locn0)]];
};
struct frag_main_out {
float bar [[color(1)]];
};
fragment frag_main_out frag_main(frag_main_in tint_in [[stage_in]]) {
frag_main_out tint_out = {};
tint_out.bar = tint_in.foo;
return tint_out;
}
)");
}
TEST_F(MslGeneratorImplTest,
Emit_FunctionDecoration_EntryPoint_WithInOut_Builtins) {
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::Vector vec4(&f32, 4);
auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "coord", ast::StorageClass::kInput, &vec4));
coord_var->set_decorations(
{create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{})});
auto* depth_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "depth", ast::StorageClass::kOutput, &f32));
depth_var->set_decorations(
{create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
td.RegisterVariableForTesting(coord_var);
td.RegisterVariableForTesting(depth_var);
mod.AddGlobalVariable(coord_var);
mod.AddGlobalVariable(depth_var);
ast::VariableList params;
auto* body = create<ast::BlockStatement>();
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("depth"),
create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("coord"),
create<ast::IdentifierExpression>("x"))));
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(
Source{}, "frag_main", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct frag_main_out {
float depth [[depth(any)]];
};
fragment frag_main_out frag_main(float4 coord [[position]]) {
frag_main_out tint_out = {};
tint_out.depth = coord.x;
return tint_out;
}
)");
}
TEST_F(MslGeneratorImplTest, Emit_FunctionDecoration_EntryPoint_With_Uniform) {
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::Vector vec4(&f32, 4);
auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "coord", ast::StorageClass::kUniform, &vec4));
ast::VariableDecorationList decos;
decos.push_back(create<ast::BindingDecoration>(0, Source{}));
decos.push_back(create<ast::SetDecoration>(1, Source{}));
coord_var->set_decorations(decos);
td.RegisterVariableForTesting(coord_var);
mod.AddGlobalVariable(coord_var);
ast::VariableList params;
auto* var =
create<ast::Variable>(Source{}, "v", ast::StorageClass::kFunction, &f32);
var->set_constructor(create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("coord"),
create<ast::IdentifierExpression>("x")));
auto* body = create<ast::BlockStatement>();
body->append(create<ast::VariableDeclStatement>(var));
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(
Source{}, "frag_main", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
fragment void frag_main(constant float4& coord [[buffer(0)]]) {
float v = coord.x;
return;
}
)");
}
TEST_F(MslGeneratorImplTest,
Emit_FunctionDecoration_EntryPoint_With_RW_StorageBuffer) {
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::I32 i32;
ast::StructMemberList members;
ast::StructMemberDecorationList a_deco;
a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
members.push_back(create<ast::StructMember>("a", &i32, a_deco));
ast::StructMemberDecorationList b_deco;
b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
members.push_back(create<ast::StructMember>("b", &f32, b_deco));
auto* str = create<ast::Struct>(members);
ast::type::Struct s("Data", str);
ast::type::AccessControl ac(ast::AccessControl::kReadWrite, &s);
mod.AddConstructedType(&s);
auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "coord", ast::StorageClass::kStorageBuffer, &ac));
ast::VariableDecorationList decos;
decos.push_back(create<ast::BindingDecoration>(0, Source{}));
decos.push_back(create<ast::SetDecoration>(1, Source{}));
coord_var->set_decorations(decos);
td.RegisterVariableForTesting(coord_var);
mod.AddGlobalVariable(coord_var);
ast::VariableList params;
auto* var =
create<ast::Variable>(Source{}, "v", ast::StorageClass::kFunction, &f32);
var->set_constructor(create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("coord"),
create<ast::IdentifierExpression>("b")));
auto* body = create<ast::BlockStatement>();
body->append(create<ast::VariableDeclStatement>(var));
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(
Source{}, "frag_main", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct Data {
int a;
float b;
};
fragment void frag_main(device Data& coord [[buffer(0)]]) {
float v = coord.b;
return;
}
)");
}
TEST_F(MslGeneratorImplTest,
Emit_FunctionDecoration_EntryPoint_With_RO_StorageBuffer) {
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::I32 i32;
ast::StructMemberList members;
ast::StructMemberDecorationList a_deco;
a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
members.push_back(create<ast::StructMember>("a", &i32, a_deco));
ast::StructMemberDecorationList b_deco;
b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
members.push_back(create<ast::StructMember>("b", &f32, b_deco));
auto* str = create<ast::Struct>(members);
ast::type::Struct s("Data", str);
ast::type::AccessControl ac(ast::AccessControl::kReadOnly, &s);
mod.AddConstructedType(&s);
auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "coord", ast::StorageClass::kStorageBuffer, &ac));
ast::VariableDecorationList decos;
decos.push_back(create<ast::BindingDecoration>(0, Source{}));
decos.push_back(create<ast::SetDecoration>(1, Source{}));
coord_var->set_decorations(decos);
td.RegisterVariableForTesting(coord_var);
mod.AddGlobalVariable(coord_var);
ast::VariableList params;
auto* var =
create<ast::Variable>(Source{}, "v", ast::StorageClass::kFunction, &f32);
var->set_constructor(create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("coord"),
create<ast::IdentifierExpression>("b")));
auto* body = create<ast::BlockStatement>();
body->append(create<ast::VariableDeclStatement>(var));
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(
Source{}, "frag_main", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct Data {
int a;
float b;
};
fragment void frag_main(const device Data& coord [[buffer(0)]]) {
float v = coord.b;
return;
}
)");
}
TEST_F(
MslGeneratorImplTest,
Emit_FunctionDecoration_Called_By_EntryPoints_WithLocationGlobals_And_Params) { // NOLINT
ast::type::Void void_type;
ast::type::F32 f32;
auto* foo_var = create<ast::DecoratedVariable>(
create<ast::Variable>(Source{}, "foo", ast::StorageClass::kInput, &f32));
foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
auto* bar_var = create<ast::DecoratedVariable>(
create<ast::Variable>(Source{}, "bar", ast::StorageClass::kOutput, &f32));
bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
auto* val_var = create<ast::DecoratedVariable>(
create<ast::Variable>(Source{}, "val", ast::StorageClass::kOutput, &f32));
val_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
td.RegisterVariableForTesting(foo_var);
td.RegisterVariableForTesting(bar_var);
td.RegisterVariableForTesting(val_var);
mod.AddGlobalVariable(foo_var);
mod.AddGlobalVariable(bar_var);
mod.AddGlobalVariable(val_var);
ast::VariableList params;
params.push_back(create<ast::Variable>(Source{}, "param",
ast::StorageClass::kFunction, &f32));
auto* body = create<ast::BlockStatement>();
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("bar"),
create<ast::IdentifierExpression>("foo")));
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("val"),
create<ast::IdentifierExpression>("param")));
body->append(
create<ast::ReturnStatement>(create<ast::IdentifierExpression>("foo")));
auto* sub_func = create<ast::Function>(Source{}, "sub_func", params, &f32,
body, ast::FunctionDecorationList{});
mod.AddFunction(sub_func);
ast::ExpressionList expr;
expr.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
body = create<ast::BlockStatement>();
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("bar"),
create<ast::CallExpression>(create<ast::IdentifierExpression>("sub_func"),
expr)));
body->append(create<ast::ReturnStatement>());
auto* func_1 = create<ast::Function>(
Source{}, "ep_1", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func_1);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct ep_1_in {
float foo [[user(locn0)]];
};
struct ep_1_out {
float bar [[color(1)]];
float val [[color(0)]];
};
float sub_func_ep_1(thread ep_1_in& tint_in, thread ep_1_out& tint_out, float param) {
tint_out.bar = tint_in.foo;
tint_out.val = param;
return tint_in.foo;
}
fragment ep_1_out ep_1(ep_1_in tint_in [[stage_in]]) {
ep_1_out tint_out = {};
tint_out.bar = sub_func_ep_1(tint_in, tint_out, 1.0f);
return tint_out;
}
)");
}
TEST_F(MslGeneratorImplTest,
Emit_FunctionDecoration_Called_By_EntryPoints_NoUsedGlobals) {
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::Vector vec4(&f32, 4);
auto* depth_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "depth", ast::StorageClass::kOutput, &f32));
ast::VariableDecorationList decos;
decos.push_back(
create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
depth_var->set_decorations(decos);
td.RegisterVariableForTesting(depth_var);
mod.AddGlobalVariable(depth_var);
ast::VariableList params;
params.push_back(create<ast::Variable>(Source{}, "param",
ast::StorageClass::kFunction, &f32));
auto* body = create<ast::BlockStatement>();
body->append(
create<ast::ReturnStatement>(create<ast::IdentifierExpression>("param")));
auto* sub_func = create<ast::Function>(Source{}, "sub_func", params, &f32,
body, ast::FunctionDecorationList{});
mod.AddFunction(sub_func);
ast::ExpressionList expr;
expr.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
body = create<ast::BlockStatement>();
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("depth"),
create<ast::CallExpression>(create<ast::IdentifierExpression>("sub_func"),
expr)));
body->append(create<ast::ReturnStatement>());
auto* func_1 = create<ast::Function>(
Source{}, "ep_1", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func_1);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct ep_1_out {
float depth [[depth(any)]];
};
float sub_func(float param) {
return param;
}
fragment ep_1_out ep_1() {
ep_1_out tint_out = {};
tint_out.depth = sub_func(1.0f);
return tint_out;
}
)");
}
TEST_F(
MslGeneratorImplTest,
Emit_FunctionDecoration_Called_By_EntryPoints_WithBuiltinGlobals_And_Params) { // NOLINT
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::Vector vec4(&f32, 4);
auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "coord", ast::StorageClass::kInput, &vec4));
coord_var->set_decorations(
{create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{})});
auto* depth_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "depth", ast::StorageClass::kOutput, &f32));
depth_var->set_decorations(
{create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
td.RegisterVariableForTesting(coord_var);
td.RegisterVariableForTesting(depth_var);
mod.AddGlobalVariable(coord_var);
mod.AddGlobalVariable(depth_var);
ast::VariableList params;
params.push_back(create<ast::Variable>(Source{}, "param",
ast::StorageClass::kFunction, &f32));
auto* body = create<ast::BlockStatement>();
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("depth"),
create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("coord"),
create<ast::IdentifierExpression>("x"))));
body->append(
create<ast::ReturnStatement>(create<ast::IdentifierExpression>("param")));
auto* sub_func = create<ast::Function>(Source{}, "sub_func", params, &f32,
body, ast::FunctionDecorationList{});
mod.AddFunction(sub_func);
ast::ExpressionList expr;
expr.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
body = create<ast::BlockStatement>();
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("depth"),
create<ast::CallExpression>(create<ast::IdentifierExpression>("sub_func"),
expr)));
body->append(create<ast::ReturnStatement>());
auto* func_1 = create<ast::Function>(
Source{}, "ep_1", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func_1);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct ep_1_out {
float depth [[depth(any)]];
};
float sub_func_ep_1(thread ep_1_out& tint_out, thread float4& coord, float param) {
tint_out.depth = coord.x;
return param;
}
fragment ep_1_out ep_1(float4 coord [[position]]) {
ep_1_out tint_out = {};
tint_out.depth = sub_func_ep_1(tint_out, coord, 1.0f);
return tint_out;
}
)");
}
TEST_F(MslGeneratorImplTest,
Emit_FunctionDecoration_Called_By_EntryPoint_With_Uniform) {
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::Vector vec4(&f32, 4);
auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "coord", ast::StorageClass::kUniform, &vec4));
ast::VariableDecorationList decos;
decos.push_back(create<ast::BindingDecoration>(0, Source{}));
decos.push_back(create<ast::SetDecoration>(1, Source{}));
coord_var->set_decorations(decos);
td.RegisterVariableForTesting(coord_var);
mod.AddGlobalVariable(coord_var);
ast::VariableList params;
params.push_back(create<ast::Variable>(Source{}, "param",
ast::StorageClass::kFunction, &f32));
auto* body = create<ast::BlockStatement>();
body->append(
create<ast::ReturnStatement>(create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("coord"),
create<ast::IdentifierExpression>("x"))));
auto* sub_func = create<ast::Function>(Source{}, "sub_func", params, &f32,
body, ast::FunctionDecorationList{});
mod.AddFunction(sub_func);
ast::ExpressionList expr;
expr.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
auto* var =
create<ast::Variable>(Source{}, "v", ast::StorageClass::kFunction, &f32);
var->set_constructor(create<ast::CallExpression>(
create<ast::IdentifierExpression>("sub_func"), expr));
body = create<ast::BlockStatement>();
body->append(create<ast::VariableDeclStatement>(var));
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(
Source{}, "frag_main", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
float sub_func(constant float4& coord, float param) {
return coord.x;
}
fragment void frag_main(constant float4& coord [[buffer(0)]]) {
float v = sub_func(coord, 1.0f);
return;
}
)");
}
TEST_F(MslGeneratorImplTest,
Emit_FunctionDecoration_Called_By_EntryPoint_With_RW_StorageBuffer) {
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::I32 i32;
ast::StructMemberList members;
ast::StructMemberDecorationList a_deco;
a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
members.push_back(create<ast::StructMember>("a", &i32, a_deco));
ast::StructMemberDecorationList b_deco;
b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
members.push_back(create<ast::StructMember>("b", &f32, b_deco));
auto* str = create<ast::Struct>(members);
ast::type::Struct s("Data", str);
ast::type::AccessControl ac(ast::AccessControl::kReadWrite, &s);
mod.AddConstructedType(&s);
auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "coord", ast::StorageClass::kStorageBuffer, &ac));
ast::VariableDecorationList decos;
decos.push_back(create<ast::BindingDecoration>(0, Source{}));
decos.push_back(create<ast::SetDecoration>(1, Source{}));
coord_var->set_decorations(decos);
td.RegisterVariableForTesting(coord_var);
mod.AddGlobalVariable(coord_var);
ast::VariableList params;
params.push_back(create<ast::Variable>(Source{}, "param",
ast::StorageClass::kFunction, &f32));
auto* body = create<ast::BlockStatement>();
body->append(
create<ast::ReturnStatement>(create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("coord"),
create<ast::IdentifierExpression>("b"))));
auto* sub_func = create<ast::Function>(Source{}, "sub_func", params, &f32,
body, ast::FunctionDecorationList{});
mod.AddFunction(sub_func);
ast::ExpressionList expr;
expr.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
auto* var =
create<ast::Variable>(Source{}, "v", ast::StorageClass::kFunction, &f32);
var->set_constructor(create<ast::CallExpression>(
create<ast::IdentifierExpression>("sub_func"), expr));
body = create<ast::BlockStatement>();
body->append(create<ast::VariableDeclStatement>(var));
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(
Source{}, "frag_main", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct Data {
int a;
float b;
};
float sub_func(device Data& coord, float param) {
return coord.b;
}
fragment void frag_main(device Data& coord [[buffer(0)]]) {
float v = sub_func(coord, 1.0f);
return;
}
)");
}
TEST_F(MslGeneratorImplTest,
Emit_FunctionDecoration_Called_By_EntryPoint_With_RO_StorageBuffer) {
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::I32 i32;
ast::StructMemberList members;
ast::StructMemberDecorationList a_deco;
a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
members.push_back(create<ast::StructMember>("a", &i32, a_deco));
ast::StructMemberDecorationList b_deco;
b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
members.push_back(create<ast::StructMember>("b", &f32, b_deco));
auto* str = create<ast::Struct>(members);
ast::type::Struct s("Data", str);
ast::type::AccessControl ac(ast::AccessControl::kReadOnly, &s);
mod.AddConstructedType(&s);
auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "coord", ast::StorageClass::kStorageBuffer, &ac));
ast::VariableDecorationList decos;
decos.push_back(create<ast::BindingDecoration>(0, Source{}));
decos.push_back(create<ast::SetDecoration>(1, Source{}));
coord_var->set_decorations(decos);
td.RegisterVariableForTesting(coord_var);
mod.AddGlobalVariable(coord_var);
ast::VariableList params;
params.push_back(create<ast::Variable>(Source{}, "param",
ast::StorageClass::kFunction, &f32));
auto* body = create<ast::BlockStatement>();
body->append(
create<ast::ReturnStatement>(create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("coord"),
create<ast::IdentifierExpression>("b"))));
auto* sub_func = create<ast::Function>(Source{}, "sub_func", params, &f32,
body, ast::FunctionDecorationList{});
mod.AddFunction(sub_func);
ast::ExpressionList expr;
expr.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
auto* var =
create<ast::Variable>(Source{}, "v", ast::StorageClass::kFunction, &f32);
var->set_constructor(create<ast::CallExpression>(
create<ast::IdentifierExpression>("sub_func"), expr));
body = create<ast::BlockStatement>();
body->append(create<ast::VariableDeclStatement>(var));
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(
Source{}, "frag_main", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct Data {
int a;
float b;
};
float sub_func(const device Data& coord, float param) {
return coord.b;
}
fragment void frag_main(const device Data& coord [[buffer(0)]]) {
float v = sub_func(coord, 1.0f);
return;
}
)");
}
TEST_F(MslGeneratorImplTest,
Emit_FunctionDecoration_EntryPoints_WithGlobal_Nested_Return) {
ast::type::Void void_type;
ast::type::F32 f32;
ast::type::I32 i32;
auto* bar_var = create<ast::DecoratedVariable>(
create<ast::Variable>(Source{}, "bar", ast::StorageClass::kOutput, &f32));
ast::VariableDecorationList decos;
decos.push_back(create<ast::LocationDecoration>(1, Source{}));
bar_var->set_decorations(decos);
td.RegisterVariableForTesting(bar_var);
mod.AddGlobalVariable(bar_var);
ast::VariableList params;
auto* body = create<ast::BlockStatement>();
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("bar"),
create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f))));
auto* list = create<ast::BlockStatement>();
list->append(create<ast::ReturnStatement>());
body->append(create<ast::IfStatement>(
Source{},
create<ast::BinaryExpression>(ast::BinaryOp::kEqual,
create<ast::ScalarConstructorExpression>(
create<ast::SintLiteral>(&i32, 1)),
create<ast::ScalarConstructorExpression>(
create<ast::SintLiteral>(&i32, 1))),
list, ast::ElseStatementList{}));
body->append(create<ast::ReturnStatement>());
auto* func_1 = create<ast::Function>(
Source{}, "ep_1", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}),
});
mod.AddFunction(func_1);
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct ep_1_out {
float bar [[color(1)]];
};
fragment ep_1_out ep_1() {
ep_1_out tint_out = {};
tint_out.bar = 1.0f;
if ((1 == 1)) {
return tint_out;
}
return tint_out;
}
)");
}
TEST_F(MslGeneratorImplTest,
Emit_FunctionDecoration_EntryPoint_WithNameCollision) {
ast::type::Void void_type;
auto* func = create<ast::Function>(
Source{}, "main", ast::VariableList{}, &void_type,
create<ast::BlockStatement>(),
ast::FunctionDecorationList{
create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}),
});
mod.AddFunction(func);
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
kernel void main_tint_0() {
}
)");
}
TEST_F(MslGeneratorImplTest, Emit_Function_WithArrayParams) {
ast::type::F32 f32;
ast::type::Array ary(&f32, 5);
ast::VariableList params;
params.push_back(
create<ast::Variable>(Source{}, "a", ast::StorageClass::kNone, &ary));
ast::type::Void void_type;
auto* body = create<ast::BlockStatement>();
body->append(create<ast::ReturnStatement>());
auto* func = create<ast::Function>(Source{}, "my_func", params, &void_type,
body, ast::FunctionDecorationList{});
mod.AddFunction(func);
gen.increment_indent();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
void my_func(float a[5]) {
return;
}
)");
}
// https://crbug.com/tint/297
TEST_F(MslGeneratorImplTest,
Emit_Function_Multiple_EntryPoint_With_Same_ModuleVar) {
// [[block]] struct Data {
// [[offset(0)]] d : f32;
// };
// [[binding(0), set(0)]] var<storage_buffer> data : Data;
//
// [[stage(compute)]]
// fn a() -> void {
// return;
// }
//
// [[stage(compute)]]
// fn b() -> void {
// return;
// }
ast::type::Void void_type;
ast::type::F32 f32;
ast::StructMemberList members;
ast::StructMemberDecorationList a_deco;
a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
members.push_back(create<ast::StructMember>("d", &f32, a_deco));
ast::StructDecorationList s_decos;
s_decos.push_back(create<ast::StructBlockDecoration>(Source{}));
auto* str = create<ast::Struct>(s_decos, members);
ast::type::Struct s("Data", str);
ast::type::AccessControl ac(ast::AccessControl::kReadWrite, &s);
auto* data_var = create<ast::DecoratedVariable>(create<ast::Variable>(
Source{}, "data", ast::StorageClass::kStorageBuffer, &ac));
ast::VariableDecorationList decos;
decos.push_back(create<ast::BindingDecoration>(0, Source{}));
decos.push_back(create<ast::SetDecoration>(0, Source{}));
data_var->set_decorations(decos);
mod.AddConstructedType(&s);
td.RegisterVariableForTesting(data_var);
mod.AddGlobalVariable(data_var);
{
ast::VariableList params;
auto* var = create<ast::Variable>(Source{}, "v",
ast::StorageClass::kFunction, &f32);
var->set_constructor(create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("data"),
create<ast::IdentifierExpression>("d")));
auto* body = create<ast::BlockStatement>();
body->append(create<ast::VariableDeclStatement>(var));
body->append(create<ast::ReturnStatement>());
auto* func =
create<ast::Function>(Source{}, "a", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(
ast::PipelineStage::kCompute, Source{}),
});
mod.AddFunction(func);
}
{
ast::VariableList params;
auto* var = create<ast::Variable>(Source{}, "v",
ast::StorageClass::kFunction, &f32);
var->set_constructor(create<ast::MemberAccessorExpression>(
create<ast::IdentifierExpression>("data"),
create<ast::IdentifierExpression>("d")));
auto* body = create<ast::BlockStatement>();
body->append(create<ast::VariableDeclStatement>(var));
body->append(create<ast::ReturnStatement>());
auto* func =
create<ast::Function>(Source{}, "b", params, &void_type, body,
ast::FunctionDecorationList{
create<ast::StageDecoration>(
ast::PipelineStage::kCompute, Source{}),
});
mod.AddFunction(func);
}
ASSERT_TRUE(td.Determine()) << td.error();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
struct Data {
float d;
};
kernel void a(device Data& data [[buffer(0)]]) {
float v = data.d;
return;
}
kernel void b(device Data& data [[buffer(0)]]) {
float v = data.d;
return;
}
)");
}
} // namespace
} // namespace msl
} // namespace writer
} // namespace tint
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