| // Copyright 2023 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/lang/core/ir/transform/conversion_polyfill.h" |
| |
| #include <utility> |
| |
| #include "src/tint/lang/core/ir/transform/helper_test.h" |
| |
| namespace tint::core::ir::transform { |
| namespace { |
| |
| using namespace tint::core::fluent_types; // NOLINT |
| using namespace tint::core::number_suffixes; // NOLINT |
| |
| class IR_ConversionPolyfillTest : public TransformTest { |
| protected: |
| /// Helper to build a function that executes a convert instruction. |
| /// @param src_ty the type of the source |
| /// @param res_ty the type of the result |
| void Build(const core::type::Type* src_ty, const core::type::Type* res_ty) { |
| auto* func = b.Function("foo", res_ty); |
| auto* src = b.FunctionParam("src", src_ty); |
| func->SetParams({src}); |
| b.Append(func->Block(), [&] { |
| auto* result = b.Convert(res_ty, src); |
| b.Return(func, result); |
| mod.SetName(result, "result"); |
| }); |
| } |
| }; |
| |
| // No change expected in this direction. |
| TEST_F(IR_ConversionPolyfillTest, I32_to_F32) { |
| Build(ty.i32(), ty.f32()); |
| auto* src = R"( |
| %foo = func(%src:i32):f32 -> %b1 { |
| %b1 = block { |
| %result:f32 = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = src; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| // No change expected in this direction. |
| TEST_F(IR_ConversionPolyfillTest, U32_to_F32) { |
| Build(ty.u32(), ty.f32()); |
| auto* src = R"( |
| %foo = func(%src:u32):f32 -> %b1 { |
| %b1 = block { |
| %result:f32 = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = src; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| TEST_F(IR_ConversionPolyfillTest, F32_to_I32_NoPolyfill) { |
| Build(ty.f32(), ty.i32()); |
| auto* src = R"( |
| %foo = func(%src:f32):i32 -> %b1 { |
| %b1 = block { |
| %result:i32 = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = src; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = false; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| TEST_F(IR_ConversionPolyfillTest, F32_to_I32) { |
| Build(ty.f32(), ty.i32()); |
| auto* src = R"( |
| %foo = func(%src:f32):i32 -> %b1 { |
| %b1 = block { |
| %result:i32 = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = R"( |
| %foo = func(%src:f32):i32 -> %b1 { |
| %b1 = block { |
| %result:i32 = call %tint_f32_to_i32, %src |
| ret %result |
| } |
| } |
| %tint_f32_to_i32 = func(%value:f32):i32 -> %b2 { |
| %b2 = block { |
| %6:i32 = convert %value |
| %7:bool = gte %value, -2147483648.0f |
| %8:i32 = select -2147483648i, %6, %7 |
| %9:bool = lte %value, 2147483520.0f |
| %10:i32 = select 2147483647i, %8, %9 |
| ret %10 |
| } |
| } |
| )"; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| TEST_F(IR_ConversionPolyfillTest, F32_to_U32) { |
| Build(ty.f32(), ty.u32()); |
| auto* src = R"( |
| %foo = func(%src:f32):u32 -> %b1 { |
| %b1 = block { |
| %result:u32 = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = R"( |
| %foo = func(%src:f32):u32 -> %b1 { |
| %b1 = block { |
| %result:u32 = call %tint_f32_to_u32, %src |
| ret %result |
| } |
| } |
| %tint_f32_to_u32 = func(%value:f32):u32 -> %b2 { |
| %b2 = block { |
| %6:u32 = convert %value |
| %7:bool = gte %value, 0.0f |
| %8:u32 = select 0u, %6, %7 |
| %9:bool = lte %value, 4294967040.0f |
| %10:u32 = select 4294967295u, %8, %9 |
| ret %10 |
| } |
| } |
| )"; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| TEST_F(IR_ConversionPolyfillTest, F32_to_I32_Vec2) { |
| Build(ty.vec2<f32>(), ty.vec2<i32>()); |
| auto* src = R"( |
| %foo = func(%src:vec2<f32>):vec2<i32> -> %b1 { |
| %b1 = block { |
| %result:vec2<i32> = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = R"( |
| %foo = func(%src:vec2<f32>):vec2<i32> -> %b1 { |
| %b1 = block { |
| %result:vec2<i32> = call %tint_v2f32_to_v2i32, %src |
| ret %result |
| } |
| } |
| %tint_v2f32_to_v2i32 = func(%value:vec2<f32>):vec2<i32> -> %b2 { |
| %b2 = block { |
| %6:vec2<i32> = convert %value |
| %7:vec2<bool> = gte %value, vec2<f32>(-2147483648.0f) |
| %8:vec2<i32> = select vec2<i32>(-2147483648i), %6, %7 |
| %9:vec2<bool> = lte %value, vec2<f32>(2147483520.0f) |
| %10:vec2<i32> = select vec2<i32>(2147483647i), %8, %9 |
| ret %10 |
| } |
| } |
| )"; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| TEST_F(IR_ConversionPolyfillTest, F32_to_U32_Vec3) { |
| Build(ty.vec2<f32>(), ty.vec2<u32>()); |
| auto* src = R"( |
| %foo = func(%src:vec2<f32>):vec2<u32> -> %b1 { |
| %b1 = block { |
| %result:vec2<u32> = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = R"( |
| %foo = func(%src:vec2<f32>):vec2<u32> -> %b1 { |
| %b1 = block { |
| %result:vec2<u32> = call %tint_v2f32_to_v2u32, %src |
| ret %result |
| } |
| } |
| %tint_v2f32_to_v2u32 = func(%value:vec2<f32>):vec2<u32> -> %b2 { |
| %b2 = block { |
| %6:vec2<u32> = convert %value |
| %7:vec2<bool> = gte %value, vec2<f32>(0.0f) |
| %8:vec2<u32> = select vec2<u32>(0u), %6, %7 |
| %9:vec2<bool> = lte %value, vec2<f32>(4294967040.0f) |
| %10:vec2<u32> = select vec2<u32>(4294967295u), %8, %9 |
| ret %10 |
| } |
| } |
| )"; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| TEST_F(IR_ConversionPolyfillTest, F16_to_I32) { |
| Build(ty.f16(), ty.i32()); |
| auto* src = R"( |
| %foo = func(%src:f16):i32 -> %b1 { |
| %b1 = block { |
| %result:i32 = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = R"( |
| %foo = func(%src:f16):i32 -> %b1 { |
| %b1 = block { |
| %result:i32 = call %tint_f16_to_i32, %src |
| ret %result |
| } |
| } |
| %tint_f16_to_i32 = func(%value:f16):i32 -> %b2 { |
| %b2 = block { |
| %6:i32 = convert %value |
| %7:bool = gte %value, -65504.0h |
| %8:i32 = select -2147483648i, %6, %7 |
| %9:bool = lte %value, 65504.0h |
| %10:i32 = select 2147483647i, %8, %9 |
| ret %10 |
| } |
| } |
| )"; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| TEST_F(IR_ConversionPolyfillTest, F16_to_U32) { |
| Build(ty.f16(), ty.u32()); |
| auto* src = R"( |
| %foo = func(%src:f16):u32 -> %b1 { |
| %b1 = block { |
| %result:u32 = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = R"( |
| %foo = func(%src:f16):u32 -> %b1 { |
| %b1 = block { |
| %result:u32 = call %tint_f16_to_u32, %src |
| ret %result |
| } |
| } |
| %tint_f16_to_u32 = func(%value:f16):u32 -> %b2 { |
| %b2 = block { |
| %6:u32 = convert %value |
| %7:bool = gte %value, 0.0h |
| %8:u32 = select 0u, %6, %7 |
| %9:bool = lte %value, 65504.0h |
| %10:u32 = select 4294967295u, %8, %9 |
| ret %10 |
| } |
| } |
| )"; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| TEST_F(IR_ConversionPolyfillTest, F16_to_I32_Vec2) { |
| Build(ty.vec2<f16>(), ty.vec2<i32>()); |
| auto* src = R"( |
| %foo = func(%src:vec2<f16>):vec2<i32> -> %b1 { |
| %b1 = block { |
| %result:vec2<i32> = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = R"( |
| %foo = func(%src:vec2<f16>):vec2<i32> -> %b1 { |
| %b1 = block { |
| %result:vec2<i32> = call %tint_v2f16_to_v2i32, %src |
| ret %result |
| } |
| } |
| %tint_v2f16_to_v2i32 = func(%value:vec2<f16>):vec2<i32> -> %b2 { |
| %b2 = block { |
| %6:vec2<i32> = convert %value |
| %7:vec2<bool> = gte %value, vec2<f16>(-65504.0h) |
| %8:vec2<i32> = select vec2<i32>(-2147483648i), %6, %7 |
| %9:vec2<bool> = lte %value, vec2<f16>(65504.0h) |
| %10:vec2<i32> = select vec2<i32>(2147483647i), %8, %9 |
| ret %10 |
| } |
| } |
| )"; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| TEST_F(IR_ConversionPolyfillTest, F16_to_U32_Vec3) { |
| Build(ty.vec2<f16>(), ty.vec2<u32>()); |
| auto* src = R"( |
| %foo = func(%src:vec2<f16>):vec2<u32> -> %b1 { |
| %b1 = block { |
| %result:vec2<u32> = convert %src |
| ret %result |
| } |
| } |
| )"; |
| auto* expect = R"( |
| %foo = func(%src:vec2<f16>):vec2<u32> -> %b1 { |
| %b1 = block { |
| %result:vec2<u32> = call %tint_v2f16_to_v2u32, %src |
| ret %result |
| } |
| } |
| %tint_v2f16_to_v2u32 = func(%value:vec2<f16>):vec2<u32> -> %b2 { |
| %b2 = block { |
| %6:vec2<u32> = convert %value |
| %7:vec2<bool> = gte %value, vec2<f16>(0.0h) |
| %8:vec2<u32> = select vec2<u32>(0u), %6, %7 |
| %9:vec2<bool> = lte %value, vec2<f16>(65504.0h) |
| %10:vec2<u32> = select vec2<u32>(4294967295u), %8, %9 |
| ret %10 |
| } |
| } |
| )"; |
| |
| EXPECT_EQ(src, str()); |
| |
| ConversionPolyfillConfig config; |
| config.ftoi = true; |
| Run(ConversionPolyfill, config); |
| EXPECT_EQ(expect, str()); |
| } |
| |
| } // namespace |
| } // namespace tint::core::ir::transform |