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// Copyright (c) 2017 Google Inc.
//
// 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 <sstream>
#include <string>
#include "gmock/gmock.h"
#include "test/unit_spirv.h"
#include "test/val/val_fixtures.h"
namespace spvtools {
namespace val {
namespace {
using ::testing::HasSubstr;
using ::testing::Not;
using ValidateDerivatives = spvtest::ValidateBase<bool>;
std::string GenerateShaderCode(
const std::string& body,
const std::string& capabilities_and_extensions = "",
const std::string& execution_model = "Fragment") {
std::stringstream ss;
ss << R"(
OpCapability Shader
OpCapability DerivativeControl
)";
ss << capabilities_and_extensions;
ss << "OpMemoryModel Logical GLSL450\n";
ss << "OpEntryPoint " << execution_model << " %main \"main\""
<< " %f32_var_input"
<< " %f32vec4_var_input"
<< "\n";
if (execution_model == "Fragment") {
ss << "OpExecutionMode %main OriginUpperLeft\n";
}
ss << R"(
%void = OpTypeVoid
%func = OpTypeFunction %void
%bool = OpTypeBool
%f32 = OpTypeFloat 32
%u32 = OpTypeInt 32 0
%s32 = OpTypeInt 32 1
%f32vec4 = OpTypeVector %f32 4
%f32_ptr_input = OpTypePointer Input %f32
%f32_var_input = OpVariable %f32_ptr_input Input
%f32vec4_ptr_input = OpTypePointer Input %f32vec4
%f32vec4_var_input = OpVariable %f32vec4_ptr_input Input
)";
if (capabilities_and_extensions.find("OpCapability Float16") !=
std::string::npos) {
ss << "%f16 = OpTypeFloat 16\n"
<< "%f16vec4 = OpTypeVector %f16 4\n"
<< "%f16_0 = OpConstantNull %f16\n"
<< "%f16vec4_0 = OpConstantNull %f16vec4\n";
}
ss << R"(
%main = OpFunction %void None %func
%main_entry = OpLabel
)";
ss << body;
ss << R"(
OpReturn
OpFunctionEnd)";
return ss.str();
}
TEST_F(ValidateDerivatives, ScalarSuccess) {
const std::string body = R"(
%f32_var = OpLoad %f32 %f32_var_input
%val1 = OpDPdx %f32 %f32_var
%val2 = OpDPdy %f32 %f32_var
%val3 = OpFwidth %f32 %f32_var
%val4 = OpDPdxFine %f32 %f32_var
%val5 = OpDPdyFine %f32 %f32_var
%val6 = OpFwidthFine %f32 %f32_var
%val7 = OpDPdxCoarse %f32 %f32_var
%val8 = OpDPdyCoarse %f32 %f32_var
%val9 = OpFwidthCoarse %f32 %f32_var
)";
CompileSuccessfully(GenerateShaderCode(body).c_str());
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
}
TEST_F(ValidateDerivatives, VectorSuccess) {
const std::string body = R"(
%f32vec4_var = OpLoad %f32vec4 %f32vec4_var_input
%val1 = OpDPdx %f32vec4 %f32vec4_var
%val2 = OpDPdy %f32vec4 %f32vec4_var
%val3 = OpFwidth %f32vec4 %f32vec4_var
%val4 = OpDPdxFine %f32vec4 %f32vec4_var
%val5 = OpDPdyFine %f32vec4 %f32vec4_var
%val6 = OpFwidthFine %f32vec4 %f32vec4_var
%val7 = OpDPdxCoarse %f32vec4 %f32vec4_var
%val8 = OpDPdyCoarse %f32vec4 %f32vec4_var
%val9 = OpFwidthCoarse %f32vec4 %f32vec4_var
)";
CompileSuccessfully(GenerateShaderCode(body).c_str());
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
}
TEST_F(ValidateDerivatives, OpDPdxWrongResultType) {
const std::string body = R"(
%f32_var = OpLoad %f32 %f32_var_input
%val1 = OpDPdx %u32 %f32vec4
)";
CompileSuccessfully(GenerateShaderCode(body).c_str());
ASSERT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
EXPECT_THAT(getDiagnosticString(), HasSubstr("Operand '10[%v4float]' cannot "
"be a type"));
}
TEST_F(ValidateDerivatives, OpDPdxWrongPType) {
const std::string body = R"(
%f32vec4_var = OpLoad %f32vec4 %f32vec4_var_input
%val1 = OpDPdx %f32 %f32vec4_var
)";
CompileSuccessfully(GenerateShaderCode(body).c_str());
ASSERT_EQ(SPV_ERROR_INVALID_DATA, ValidateInstructions());
EXPECT_THAT(getDiagnosticString(),
HasSubstr("Expected P type and Result Type to be the same: "
"DPdx"));
}
TEST_F(ValidateDerivatives, OpDPdxWrongExecutionModel) {
const std::string body = R"(
%f32vec4_var = OpLoad %f32vec4 %f32vec4_var_input
%val1 = OpDPdx %f32vec4 %f32vec4_var
)";
CompileSuccessfully(GenerateShaderCode(body, "", "Vertex").c_str());
ASSERT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
EXPECT_THAT(getDiagnosticString(),
HasSubstr("Derivative instructions require Fragment, GLCompute, "
"MeshEXT or TaskEXT execution model: DPdx"));
}
TEST_F(ValidateDerivatives, NoExecutionModeGLCompute) {
const std::string spirv = R"(
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %main "main"
%void = OpTypeVoid
%float = OpTypeFloat 32
%float4 = OpTypeVector %float 4
%undef = OpUndef %float4
%void_fn = OpTypeFunction %void
%main = OpFunction %void None %void_fn
%entry = OpLabel
%derivative = OpDPdy %float4 %undef
OpReturn
OpFunctionEnd
)";
CompileSuccessfully(spirv);
EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
EXPECT_THAT(getDiagnosticString(),
HasSubstr("Derivative instructions require "
"DerivativeGroupQuadsKHR or DerivativeGroupLinearKHR "
"execution mode for GLCompute, MeshEXT or TaskEXT "
"execution model"));
}
using ValidateHalfDerivatives = spvtest::ValidateBase<std::string>;
TEST_P(ValidateHalfDerivatives, ScalarFailure) {
const std::string op = GetParam();
const std::string body = "%val = " + op + " %f16 %f16_0\n";
CompileSuccessfully(
GenerateShaderCode(body, "OpCapability Float16\n").c_str());
ASSERT_EQ(SPV_ERROR_INVALID_DATA, ValidateInstructions());
EXPECT_THAT(getDiagnosticString(),
HasSubstr("Result type component width must be 32 bits"));
}
TEST_P(ValidateHalfDerivatives, VectorFailure) {
const std::string op = GetParam();
const std::string body = "%val = " + op + " %f16vec4 %f16vec4_0\n";
CompileSuccessfully(
GenerateShaderCode(body, "OpCapability Float16\n").c_str());
ASSERT_EQ(SPV_ERROR_INVALID_DATA, ValidateInstructions());
EXPECT_THAT(getDiagnosticString(),
HasSubstr("Result type component width must be 32 bits"));
}
INSTANTIATE_TEST_SUITE_P(HalfDerivatives, ValidateHalfDerivatives,
::testing::Values("OpDPdx", "OpDPdy", "OpFwidth",
"OpDPdxFine", "OpDPdyFine",
"OpFwidthFine", "OpDPdxCoarse",
"OpDPdyCoarse", "OpFwidthCoarse"));
} // namespace
} // namespace val
} // namespace spvtools
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