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tint/writer/hlsl: Support for F16 type, constructor, and convertor 

This patch make HLSL writer support emitting f16 types, f16 literals,
f16 constructor and convertor. Unittests are also implemented.

The HLSL writer will emit f16 literal as `float16_t(1.23h)`, making the
type explicit, and map f16 types as follow. The generated code require
DXC with SM6.0 or higher, and `-enable-16bit-types`.
WGSL type   -> HLSL type
f16         -> float16_t
vec2<f16>   -> vector<float16_t, 2>
vec3<f16>   -> vector<float16_t, 3>
vec4<f16>   -> vector<float16_t, 4>
mat2x2<f16> -> matrix<float16_t, 2, 2>
mat2x3<f16> -> matrix<float16_t, 2, 3>
mat2x4<f16> -> matrix<float16_t, 2, 4>
mat3x2<f16> -> matrix<float16_t, 3, 2>
mat3x3<f16> -> matrix<float16_t, 3, 3>
mat3x4<f16> -> matrix<float16_t, 3, 4>
mat4x2<f16> -> matrix<float16_t, 4, 2>
mat4x3<f16> -> matrix<float16_t, 4, 3>
mat4x4<f16> -> matrix<float16_t, 4, 4>

Bug: tint:1473, tint:1502
Change-Id: Iaf564f3ce29ace2984cef19d7df5a7dfb0fab2ef
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95685
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
This commit is contained in:
Zhaoming Jiang 2022-07-11 15:43:38 +00:00 committed by Dawn LUCI CQ
parent 94c6495ad2
commit a5988a3058
5 changed files with 357 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
src/tint/writer/hlsl/generator_impl.cc
View File

@ -122,6 +122,16 @@ void PrintF32(std::ostream& out, float value) {
}
}
bool PrintF16(std::ostream& out, float value) {
// Note: Currently inf and nan should not be constructable, don't emit them.
if (std::isinf(value) || std::isnan(value)) {
return false;
} else {
out << FloatToString(value) << "h";
return true;
}
}
// Helper for writing " : register(RX, spaceY)", where R is the register, X is
// the binding point binding value, and Y is the binding point group value.
struct RegisterAndSpace {
@ -3122,6 +3132,13 @@ bool GeneratorImpl::EmitConstant(std::ostream& out, const sem::Constant* constan
PrintF32(out, constant->As<float>());
return true;
},
[&](const sem::F16*) {
// emit a f16 scalar with explicit float16_t type declaration.
out << "float16_t(";
bool valid = PrintF16(out, constant->As<float>());
out << ")";
return valid;
},
[&](const sem::I32*) {
out << constant->As<AInt>();
return true;
@ -3218,6 +3235,13 @@ bool GeneratorImpl::EmitLiteral(std::ostream& out, const ast::LiteralExpression*
return true;
},
[&](const ast::FloatLiteralExpression* l) {
if (l->suffix == ast::FloatLiteralExpression::Suffix::kH) {
// Emit f16 literal with explicit float16_t type declaration.
out << "float16_t(";
bool valid = PrintF16(out, static_cast<float>(l->value));
out << ")";
return valid;
}
PrintF32(out, static_cast<float>(l->value));
return true;
},
@ -3251,6 +3275,10 @@ bool GeneratorImpl::EmitValue(std::ostream& out, const sem::Type* type, int valu
out << value << ".0f";
return true;
},
[&](const sem::F16*) {
out << "float16_t(" << value << ".0h)";
return true;
},
[&](const sem::I32*) {
out << value;
return true;
@ -3723,15 +3751,23 @@ bool GeneratorImpl::EmitType(std::ostream& out,
return true;
},
[&](const sem::F16*) {
diagnostics_.add_error(diag::System::Writer,
"Type f16 is not completely implemented yet.");
return false;
out << "float16_t";
return true;
},
[&](const sem::I32*) {
out << "int";
return true;
},
[&](const sem::Matrix* mat) {
if (mat->type()->Is<sem::F16>()) {
// Use matrix<type, N, M> for f16 matrix
out << "matrix<";
if (!EmitType(out, mat->type(), storage_class, access, "")) {
return false;
}
out << ", " << mat->columns() << ", " << mat->rows() << ">";
return true;
}
if (!EmitType(out, mat->type(), storage_class, access, "")) {
return false;
}
@ -3847,6 +3883,7 @@ bool GeneratorImpl::EmitType(std::ostream& out,
} else if (vec->type()->Is<sem::Bool>() && width >= 1 && width <= 4) {
out << "bool" << width;
} else {
// For example, use "vector<float16_t, N>" for f16 vector.
out << "vector<";
if (!EmitType(out, vec->type(), storage_class, access, "")) {
return false;

170
src/tint/writer/hlsl/generator_impl_constructor_test.cc
View File

@ -61,6 +61,18 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Float) {
EXPECT_THAT(gen.result(), HasSubstr("1073741824.0f"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_F16) {
Enable(ast::Extension::kF16);
// Use a number close to 1<<16 but whose decimal representation ends in 0.
WrapInFunction(Expr(f16((1 << 15) - 8)));
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(gen.result(), HasSubstr("float16_t(32752.0h)"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Float) {
WrapInFunction(Construct<f32>(-1.2e-5_f));
@ -70,6 +82,17 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Float) {
EXPECT_THAT(gen.result(), HasSubstr("-0.000012f"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_F16) {
Enable(ast::Extension::kF16);
WrapInFunction(Construct<f16>(-1.2e-3_h));
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(gen.result(), HasSubstr("float16_t(-0.00119972229h)"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Bool) {
WrapInFunction(Construct<bool>(true));
@ -97,7 +120,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Uint) {
EXPECT_THAT(gen.result(), HasSubstr("12345u"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec) {
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_F32) {
WrapInFunction(vec3<f32>(1_f, 2_f, 3_f));
GeneratorImpl& gen = Build();
@ -106,7 +129,20 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec) {
EXPECT_THAT(gen.result(), HasSubstr("float3(1.0f, 2.0f, 3.0f)"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_Empty) {
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_F16) {
Enable(ast::Extension::kF16);
WrapInFunction(vec3<f16>(1_h, 2_h, 3_h));
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(
gen.result(),
HasSubstr("vector<float16_t, 3>(float16_t(1.0h), float16_t(2.0h), float16_t(3.0h))"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_Empty_F32) {
WrapInFunction(vec3<f32>());
GeneratorImpl& gen = Build();
@ -115,7 +151,18 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_Empty) {
EXPECT_THAT(gen.result(), HasSubstr("0.0f).xxx"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_Float_Literal) {
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_Empty_F16) {
Enable(ast::Extension::kF16);
WrapInFunction(vec3<f16>());
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(gen.result(), HasSubstr("(float16_t(0.0h)).xxx"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_F32_Literal) {
WrapInFunction(vec3<f32>(2_f));
GeneratorImpl& gen = Build();
@ -124,7 +171,18 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_
EXPECT_THAT(gen.result(), HasSubstr("2.0f).xxx"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_Float_Var) {
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_F16_Literal) {
Enable(ast::Extension::kF16);
WrapInFunction(vec3<f16>(2_h));
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(gen.result(), HasSubstr("(float16_t(2.0h)).xxx"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_F32_Var) {
auto* var = Var("v", nullptr, Expr(2_f));
auto* cast = vec3<f32>(var);
WrapInFunction(var, cast);
@ -136,6 +194,20 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_
const float3 tint_symbol = float3((v).xxx);)"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_F16_Var) {
Enable(ast::Extension::kF16);
auto* var = Var("v", nullptr, Expr(2_h));
auto* cast = vec3<f16>(var);
WrapInFunction(var, cast);
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(gen.result(), HasSubstr(R"(float16_t v = float16_t(2.0h);
const vector<float16_t, 3> tint_symbol = vector<float16_t, 3>((v).xxx);)"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_Bool_Literal) {
WrapInFunction(vec3<bool>(true));
@ -175,7 +247,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_SingleScalar_
EXPECT_THAT(gen.result(), HasSubstr("2u).xxx"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat) {
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_F32) {
WrapInFunction(mat2x3<f32>(vec3<f32>(1_f, 2_f, 3_f), vec3<f32>(3_f, 4_f, 5_f)));
GeneratorImpl& gen = Build();
@ -186,7 +258,22 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat) {
HasSubstr("float2x3(float3(1.0f, 2.0f, 3.0f), float3(3.0f, 4.0f, 5.0f))"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Complex) {
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_F16) {
Enable(ast::Extension::kF16);
WrapInFunction(mat2x3<f16>(vec3<f16>(1_h, 2_h, 3_h), vec3<f16>(3_h, 4_h, 5_h)));
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(gen.result(),
HasSubstr("matrix<float16_t, 2, 3>(vector<float16_t, 3>(float16_t(1.0h), "
"float16_t(2.0h), float16_t(3.0h)), vector<float16_t, "
"3>(float16_t(3.0h), float16_t(4.0h), float16_t(5.0h)))"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Complex_F32) {
// mat4x4<f32>(
// vec4<f32>(2.0f, 3.0f, 4.0f, 8.0f),
// vec4<f32>(),
@ -213,7 +300,40 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Complex) {
"(7.0f).xxxx, float4(42.0f, 21.0f, 6.0f, -5.0f))"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Empty) {
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Complex_F16) {
// mat4x4<f16>(
// vec4<f16>(2.0h, 3.0h, 4.0h, 8.0h),
// vec4<f16>(),
// vec4<f16>(7.0h),
// vec4<f16>(vec4<f16>(42.0h, 21.0h, 6.0h, -5.0h)),
// );
Enable(ast::Extension::kF16);
auto* vector_literal =
vec4<f16>(Expr(f16(2.0)), Expr(f16(3.0)), Expr(f16(4.0)), Expr(f16(8.0)));
auto* vector_zero_ctor = vec4<f16>();
auto* vector_single_scalar_ctor = vec4<f16>(Expr(f16(7.0)));
auto* vector_identical_ctor =
vec4<f16>(vec4<f16>(Expr(f16(42.0)), Expr(f16(21.0)), Expr(f16(6.0)), Expr(f16(-5.0))));
auto* constructor = mat4x4<f16>(vector_literal, vector_zero_ctor, vector_single_scalar_ctor,
vector_identical_ctor);
WrapInFunction(constructor);
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(gen.result(), HasSubstr("matrix<float16_t, 4, 4>("
"vector<float16_t, 4>(float16_t(2.0h), float16_t(3.0h), "
"float16_t(4.0h), float16_t(8.0h)), "
"(float16_t(0.0h)).xxxx, (float16_t(7.0h)).xxxx, "
"vector<float16_t, 4>(float16_t(42.0h), float16_t(21.0h), "
"float16_t(6.0h), float16_t(-5.0h)))"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Empty_F32) {
WrapInFunction(mat2x3<f32>());
GeneratorImpl& gen = Build();
@ -223,7 +343,20 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Empty) {
EXPECT_THAT(gen.result(), HasSubstr("float2x3 tint_symbol = float2x3((0.0f).xxx, (0.0f).xxx)"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Identity) {
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Empty_F16) {
Enable(ast::Extension::kF16);
WrapInFunction(mat2x3<f16>());
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(gen.result(),
HasSubstr("matrix<float16_t, 2, 3>((float16_t(0.0h)).xxx, (float16_t(0.0h)).xxx)"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Identity_F32) {
// fn f() {
// var m_1: mat4x4<f32> = mat4x4<f32>();
// var m_2: mat4x4<f32> = mat4x4<f32>(m_1);
@ -241,6 +374,27 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Identity) {
EXPECT_THAT(gen.result(), HasSubstr("float4x4 m_2 = float4x4(m_1);"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat_Identity_F16) {
// fn f() {
// var m_1: mat4x4<f16> = mat4x4<f16>();
// var m_2: mat4x4<f16> = mat4x4<f16>(m_1);
// }
Enable(ast::Extension::kF16);
auto* m_1 = Var("m_1", ty.mat4x4(ty.f16()), mat4x4<f16>());
auto* m_2 = Var("m_2", ty.mat4x4(ty.f16()), mat4x4<f16>(m_1));
WrapInFunction(m_1, m_2);
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_THAT(gen.result(),
HasSubstr("matrix<float16_t, 4, 4> m_2 = matrix<float16_t, 4, 4>(m_1);"));
}
TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Array) {
WrapInFunction(Construct(ty.array(ty.vec3<f32>(), 3_u), vec3<f32>(1_f, 2_f, 3_f),
vec3<f32>(4_f, 5_f, 6_f), vec3<f32>(7_f, 8_f, 9_f)));

48
src/tint/writer/hlsl/generator_impl_module_constant_test.cc
View File

@ -92,6 +92,22 @@ TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_GlobalConst_f32) {
)");
}
TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_GlobalConst_f16) {
Enable(ast::Extension::kF16);
auto* var = GlobalConst("G", nullptr, Expr(1_h));
Func("f", {}, ty.void_(), {Decl(Let("l", nullptr, Expr(var)))});
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(void f() {
const float16_t l = float16_t(1.0h);
}
)");
}
TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_GlobalConst_vec3_AInt) {
auto* var = GlobalConst("G", nullptr, Construct(ty.vec3(nullptr), 1_a, 2_a, 3_a));
Func("f", {}, ty.void_(), {Decl(Let("l", nullptr, Expr(var)))});
@ -134,6 +150,22 @@ TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_GlobalConst_vec3_f32) {
)");
}
TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_GlobalConst_vec3_f16) {
Enable(ast::Extension::kF16);
auto* var = GlobalConst("G", nullptr, vec3<f16>(1_h, 2_h, 3_h));
Func("f", {}, ty.void_(), {Decl(Let("l", nullptr, Expr(var)))});
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(void f() {
const vector<float16_t, 3> l = vector<float16_t, 3>(float16_t(1.0h), float16_t(2.0h), float16_t(3.0h));
}
)");
}
TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_GlobalConst_mat2x3_AFloat) {
auto* var = GlobalConst("G", nullptr,
Construct(ty.mat(nullptr, 2, 3), 1._a, 2._a, 3._a, 4._a, 5._a, 6._a));
@ -163,6 +195,22 @@ TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_GlobalConst_mat2x3_f32) {
)");
}
TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_GlobalConst_mat2x3_f16) {
Enable(ast::Extension::kF16);
auto* var = GlobalConst("G", nullptr, mat2x3<f16>(1_h, 2_h, 3_h, 4_h, 5_h, 6_h));
Func("f", {}, ty.void_(), {Decl(Let("l", nullptr, Expr(var)))});
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(void f() {
const matrix<float16_t, 2, 3> l = matrix<float16_t, 2, 3>(vector<float16_t, 3>(float16_t(1.0h), float16_t(2.0h), float16_t(3.0h)), vector<float16_t, 3>(float16_t(4.0h), float16_t(5.0h), float16_t(6.0h)));
}
)");
}
TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_GlobalConst_arr_f32) {
auto* var = GlobalConst("G", nullptr, Construct(ty.array<f32, 3>(), 1_f, 2_f, 3_f));
Func("f", {}, ty.void_(), {Decl(Let("l", nullptr, Expr(var)))});

26
src/tint/writer/hlsl/generator_impl_type_test.cc
View File

@ -94,6 +94,17 @@ TEST_F(HlslGeneratorImplTest_Type, EmitType_Bool) {
EXPECT_EQ(out.str(), "bool");
}
TEST_F(HlslGeneratorImplTest_Type, EmitType_F16) {
auto* f16 = create<sem::F16>();
GeneratorImpl& gen = Build();
std::stringstream out;
ASSERT_TRUE(gen.EmitType(out, f16, ast::StorageClass::kNone, ast::Access::kReadWrite, ""))
<< gen.error();
EXPECT_EQ(out.str(), "float16_t");
}
TEST_F(HlslGeneratorImplTest_Type, EmitType_F32) {
auto* f32 = create<sem::F32>();
@ -116,7 +127,20 @@ TEST_F(HlslGeneratorImplTest_Type, EmitType_I32) {
EXPECT_EQ(out.str(), "int");
}
TEST_F(HlslGeneratorImplTest_Type, EmitType_Matrix) {
TEST_F(HlslGeneratorImplTest_Type, EmitType_Matrix_F16) {
auto* f16 = create<sem::F16>();
auto* vec3 = create<sem::Vector>(f16, 3u);
auto* mat2x3 = create<sem::Matrix>(vec3, 2u);
GeneratorImpl& gen = Build();
std::stringstream out;
ASSERT_TRUE(gen.EmitType(out, mat2x3, ast::StorageClass::kNone, ast::Access::kReadWrite, ""))
<< gen.error();
EXPECT_EQ(out.str(), "matrix<float16_t, 2, 3>");
}
TEST_F(HlslGeneratorImplTest_Type, EmitType_Matrix_F32) {
auto* f32 = create<sem::F32>();
auto* vec3 = create<sem::Vector>(f32, 3u);
auto* mat2x3 = create<sem::Matrix>(vec3, 2u);

84
src/tint/writer/hlsl/generator_impl_variable_decl_statement_test.cc
View File

@ -134,6 +134,22 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const_f32)
)");
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const_f16) {
Enable(ast::Extension::kF16);
auto* C = Const("C", nullptr, Expr(1_h));
Func("f", {}, ty.void_(), {Decl(C), Decl(Let("l", nullptr, Expr(C)))});
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(void f() {
const float16_t l = float16_t(1.0h);
}
)");
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const_vec3_AInt) {
auto* C = Const("C", nullptr, Construct(ty.vec3(nullptr), 1_a, 2_a, 3_a));
Func("f", {}, ty.void_(), {Decl(C), Decl(Let("l", nullptr, Expr(C)))});
@ -176,6 +192,22 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const_vec3
)");
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const_vec3_f16) {
Enable(ast::Extension::kF16);
auto* C = Const("C", nullptr, vec3<f16>(1_h, 2_h, 3_h));
Func("f", {}, ty.void_(), {Decl(C), Decl(Let("l", nullptr, Expr(C)))});
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(void f() {
const vector<float16_t, 3> l = vector<float16_t, 3>(float16_t(1.0h), float16_t(2.0h), float16_t(3.0h));
}
)");
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const_mat2x3_AFloat) {
auto* C =
Const("C", nullptr, Construct(ty.mat(nullptr, 2, 3), 1._a, 2._a, 3._a, 4._a, 5._a, 6._a));
@ -205,6 +237,22 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const_mat2
)");
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const_mat2x3_f16) {
Enable(ast::Extension::kF16);
auto* C = Const("C", nullptr, mat2x3<f16>(1_h, 2_h, 3_h, 4_h, 5_h, 6_h));
Func("f", {}, ty.void_(), {Decl(C), Decl(Let("l", nullptr, Expr(C)))});
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.Generate()) << gen.error();
EXPECT_EQ(gen.result(), R"(void f() {
const matrix<float16_t, 2, 3> l = matrix<float16_t, 2, 3>(vector<float16_t, 3>(float16_t(1.0h), float16_t(2.0h), float16_t(3.0h)), vector<float16_t, 3>(float16_t(4.0h), float16_t(5.0h), float16_t(6.0h)));
}
)");
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const_arr_f32) {
auto* C = Const("C", nullptr, Construct(ty.array<f32, 3>(), 1_f, 2_f, 3_f));
Func("f", {}, ty.void_(), {Decl(C), Decl(Let("l", nullptr, Expr(C)))});
@ -263,7 +311,7 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Private) {
EXPECT_THAT(gen.result(), HasSubstr(" static float a = 0.0f;\n"));
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Initializer_ZeroVec) {
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Initializer_ZeroVec_F32) {
auto* var = Var("a", ty.vec3<f32>(), ast::StorageClass::kNone, vec3<f32>());
auto* stmt = Decl(var);
@ -276,7 +324,22 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Initialize
)");
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Initializer_ZeroMat) {
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Initializer_ZeroVec_F16) {
Enable(ast::Extension::kF16);
auto* var = Var("a", ty.vec3<f16>(), ast::StorageClass::kNone, vec3<f16>());
auto* stmt = Decl(var);
WrapInFunction(stmt);
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.EmitStatement(stmt)) << gen.error();
EXPECT_EQ(gen.result(), R"(vector<float16_t, 3> a = (float16_t(0.0h)).xxx;
)");
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Initializer_ZeroMat_F32) {
auto* var = Var("a", ty.mat2x3<f32>(), ast::StorageClass::kNone, mat2x3<f32>());
auto* stmt = Decl(var);
@ -290,5 +353,22 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Initialize
)");
}
TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Initializer_ZeroMat_F16) {
Enable(ast::Extension::kF16);
auto* var = Var("a", ty.mat2x3<f16>(), ast::StorageClass::kNone, mat2x3<f16>());
auto* stmt = Decl(var);
WrapInFunction(stmt);
GeneratorImpl& gen = Build();
ASSERT_TRUE(gen.EmitStatement(stmt)) << gen.error();
EXPECT_EQ(
gen.result(),
R"(matrix<float16_t, 2, 3> a = matrix<float16_t, 2, 3>((float16_t(0.0h)).xxx, (float16_t(0.0h)).xxx);
)");
}
} // namespace
} // namespace tint::writer::hlsl