mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-27 10:20:14 +00:00
2d2a512691
* Move ProcessFunction* function from pass to the context. There are a few functions that are used to traverse the call tree. They currently live in the Pass class, but they have nothing to do with a pass, and may be needed outside of a pass. They would be better in the ir context, or in a specific call tree class if we ever have a need for it. * Don't inline recursive functions. Inlining does not check if a function is recursive or not. This has been fine as long as the shader was a Vulkan shader, which forbid recursive functions. However, not all shaders are vulkan, so either we limit inlining to Vulkan shaders or we teach it to look for recursive functions. I prefer to keep the passes as general as is reasonable. The change does not require much new code in inlining and gives a reason to refactor some other code. The changes are to add a member function to the Function class that checks if that function is recursive or not. Then this is used in inlining to not inlining a function call if it calls a recursive function. * Add id to function analysis There are a few places that build a map from ids to Function whose result is that id. I decided to add an analysis to the context for this to reduce that code, and simplify some of the functions. * Add missing file.
174 lines
4.7 KiB
C++
174 lines
4.7 KiB
C++
// Copyright (c) 2018 Google LLC
|
|
//
|
|
// 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 <memory>
|
|
#include <sstream>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "function_utils.h"
|
|
#include "gmock/gmock.h"
|
|
#include "gtest/gtest.h"
|
|
#include "source/opt/build_module.h"
|
|
#include "source/opt/ir_context.h"
|
|
|
|
namespace spvtools {
|
|
namespace opt {
|
|
namespace {
|
|
|
|
using ::testing::Eq;
|
|
|
|
TEST(FunctionTest, IsNotRecursive) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main"
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
OpDecorate %2 DescriptorSet 439418829
|
|
%void = OpTypeVoid
|
|
%4 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_struct_6 = OpTypeStruct %float %float
|
|
%7 = OpTypeFunction %_struct_6
|
|
%1 = OpFunction %void Pure|Const %4
|
|
%8 = OpLabel
|
|
%2 = OpFunctionCall %_struct_6 %9
|
|
OpKill
|
|
OpFunctionEnd
|
|
%9 = OpFunction %_struct_6 None %7
|
|
%10 = OpLabel
|
|
%11 = OpFunctionCall %_struct_6 %12
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
%12 = OpFunction %_struct_6 None %7
|
|
%13 = OpLabel
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
std::unique_ptr<IRContext> ctx =
|
|
spvtools::BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
auto* func = spvtest::GetFunction(ctx->module(), 9);
|
|
EXPECT_FALSE(func->IsRecursive());
|
|
|
|
func = spvtest::GetFunction(ctx->module(), 12);
|
|
EXPECT_FALSE(func->IsRecursive());
|
|
}
|
|
|
|
TEST(FunctionTest, IsDirectlyRecursive) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main"
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
OpDecorate %2 DescriptorSet 439418829
|
|
%void = OpTypeVoid
|
|
%4 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_struct_6 = OpTypeStruct %float %float
|
|
%7 = OpTypeFunction %_struct_6
|
|
%1 = OpFunction %void Pure|Const %4
|
|
%8 = OpLabel
|
|
%2 = OpFunctionCall %_struct_6 %9
|
|
OpKill
|
|
OpFunctionEnd
|
|
%9 = OpFunction %_struct_6 None %7
|
|
%10 = OpLabel
|
|
%11 = OpFunctionCall %_struct_6 %9
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
std::unique_ptr<IRContext> ctx =
|
|
spvtools::BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
auto* func = spvtest::GetFunction(ctx->module(), 9);
|
|
EXPECT_TRUE(func->IsRecursive());
|
|
}
|
|
|
|
TEST(FunctionTest, IsIndirectlyRecursive) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main"
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
OpDecorate %2 DescriptorSet 439418829
|
|
%void = OpTypeVoid
|
|
%4 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_struct_6 = OpTypeStruct %float %float
|
|
%7 = OpTypeFunction %_struct_6
|
|
%1 = OpFunction %void Pure|Const %4
|
|
%8 = OpLabel
|
|
%2 = OpFunctionCall %_struct_6 %9
|
|
OpKill
|
|
OpFunctionEnd
|
|
%9 = OpFunction %_struct_6 None %7
|
|
%10 = OpLabel
|
|
%11 = OpFunctionCall %_struct_6 %12
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
%12 = OpFunction %_struct_6 None %7
|
|
%13 = OpLabel
|
|
%14 = OpFunctionCall %_struct_6 %9
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
std::unique_ptr<IRContext> ctx =
|
|
spvtools::BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
auto* func = spvtest::GetFunction(ctx->module(), 9);
|
|
EXPECT_TRUE(func->IsRecursive());
|
|
|
|
func = spvtest::GetFunction(ctx->module(), 12);
|
|
EXPECT_TRUE(func->IsRecursive());
|
|
}
|
|
|
|
TEST(FunctionTest, IsNotRecuriseCallingRecursive) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main"
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
OpDecorate %2 DescriptorSet 439418829
|
|
%void = OpTypeVoid
|
|
%4 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_struct_6 = OpTypeStruct %float %float
|
|
%7 = OpTypeFunction %_struct_6
|
|
%1 = OpFunction %void Pure|Const %4
|
|
%8 = OpLabel
|
|
%2 = OpFunctionCall %_struct_6 %9
|
|
OpKill
|
|
OpFunctionEnd
|
|
%9 = OpFunction %_struct_6 None %7
|
|
%10 = OpLabel
|
|
%11 = OpFunctionCall %_struct_6 %9
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
std::unique_ptr<IRContext> ctx =
|
|
spvtools::BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
auto* func = spvtest::GetFunction(ctx->module(), 1);
|
|
EXPECT_FALSE(func->IsRecursive());
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace opt
|
|
} // namespace spvtools
|