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https://github.com/KhronosGroup/SPIRV-Tools
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11a867f412
Add --flatten-decorations to spirv-opt Flattens decoration groups. That is, replace OpDecorationGroup and its uses in OpGroupDecorate and OpGroupMemberDecorate with ordinary OpDecorate and OpMemberDecorate instructions. Fixes https://github.com/KhronosGroup/SPIRV-Tools/issues/602
235 lines
11 KiB
C++
235 lines
11 KiB
C++
// Copyright (c) 2017 Valve Corporation
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// Copyright (c) 2017 LunarG Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <gmock/gmock.h>
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#include "pass_fixture.h"
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#include "pass_utils.h"
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namespace {
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using namespace spvtools;
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// Returns the initial part of the assembly text for a valid
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// SPIR-V module, including instructions prior to decorations.
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std::string PreambleAssembly() {
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return
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R"(OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main" %hue %saturation %value
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OpName %main "main"
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OpName %void_fn "void_fn"
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OpName %hue "hue"
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OpName %saturation "saturation"
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OpName %value "value"
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OpName %entry "entry"
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OpName %Point "Point"
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OpName %Camera "Camera"
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)";
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}
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// Retuns types
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std::string TypesAndFunctionsAssembly() {
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return
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R"(%void = OpTypeVoid
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%void_fn = OpTypeFunction %void
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%float = OpTypeFloat 32
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%Point = OpTypeStruct %float %float %float
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%Camera = OpTypeStruct %float %float
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%_ptr_Input_float = OpTypePointer Input %float
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%hue = OpVariable %_ptr_Input_float Input
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%saturation = OpVariable %_ptr_Input_float Input
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%value = OpVariable %_ptr_Input_float Input
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%main = OpFunction %void None %void_fn
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%entry = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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}
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struct FlattenDecorationCase {
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// Names and decorations before the pass.
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std::string input;
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// Names and decorations after the pass.
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std::string expected;
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};
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using FlattenDecorationTest =
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PassTest<::testing::TestWithParam<FlattenDecorationCase>>;
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TEST_P(FlattenDecorationTest, TransformsDecorations) {
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const auto before =
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PreambleAssembly() + GetParam().input + TypesAndFunctionsAssembly();
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const auto after =
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PreambleAssembly() + GetParam().expected + TypesAndFunctionsAssembly();
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SinglePassRunAndCheck<opt::FlattenDecorationPass>(before, after, false, true);
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}
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INSTANTIATE_TEST_CASE_P(NoUses, FlattenDecorationTest,
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::testing::ValuesIn(std::vector<FlattenDecorationCase>{
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// No OpDecorationGroup
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{"", ""},
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// OpDecorationGroup without any uses, and
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// no OpName.
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{"%group = OpDecorationGroup\n", ""},
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// OpDecorationGroup without any uses, and
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// with OpName targeting it. Proves you must
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// remove the names as well.
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{"OpName %group \"group\"\n"
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"%group = OpDecorationGroup\n",
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""},
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// OpDecorationGroup with decorations that
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// target it, but no uses in OpGroupDecorate
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// or OpGroupMemberDecorate instructions.
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{"OpDecorate %group Flat\n"
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"OpDecorate %group NoPerspective\n"
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"%group = OpDecorationGroup\n",
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""},
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}), );
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INSTANTIATE_TEST_CASE_P(OpGroupDecorate, FlattenDecorationTest,
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::testing::ValuesIn(std::vector<FlattenDecorationCase>{
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// One OpGroupDecorate
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{"OpName %group \"group\"\n"
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"OpDecorate %group Flat\n"
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"OpDecorate %group NoPerspective\n"
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"%group = OpDecorationGroup\n"
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"OpGroupDecorate %group %hue %saturation\n",
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"OpDecorate %hue Flat\n"
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"OpDecorate %saturation Flat\n"
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"OpDecorate %hue NoPerspective\n"
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"OpDecorate %saturation NoPerspective\n"},
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// Multiple OpGroupDecorate
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{"OpName %group \"group\"\n"
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"OpDecorate %group Flat\n"
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"OpDecorate %group NoPerspective\n"
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"%group = OpDecorationGroup\n"
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"OpGroupDecorate %group %hue %value\n"
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"OpGroupDecorate %group %saturation\n",
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"OpDecorate %hue Flat\n"
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"OpDecorate %value Flat\n"
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"OpDecorate %saturation Flat\n"
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"OpDecorate %hue NoPerspective\n"
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"OpDecorate %value NoPerspective\n"
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"OpDecorate %saturation NoPerspective\n"},
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// Two group decorations, interleaved
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{"OpName %group0 \"group0\"\n"
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"OpName %group1 \"group1\"\n"
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"OpDecorate %group0 Flat\n"
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"OpDecorate %group1 NoPerspective\n"
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"%group0 = OpDecorationGroup\n"
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"%group1 = OpDecorationGroup\n"
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"OpGroupDecorate %group0 %hue %value\n"
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"OpGroupDecorate %group1 %saturation\n",
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"OpDecorate %hue Flat\n"
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"OpDecorate %value Flat\n"
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"OpDecorate %saturation NoPerspective\n"},
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// Decoration with operands
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{"OpName %group \"group\"\n"
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"OpDecorate %group Location 42\n"
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"%group = OpDecorationGroup\n"
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"OpGroupDecorate %group %hue %saturation\n",
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"OpDecorate %hue Location 42\n"
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"OpDecorate %saturation Location 42\n"},
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}), );
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INSTANTIATE_TEST_CASE_P(OpGroupMemberDecorate, FlattenDecorationTest,
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::testing::ValuesIn(std::vector<FlattenDecorationCase>{
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// One OpGroupMemberDecorate
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{"OpName %group \"group\"\n"
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"OpDecorate %group Flat\n"
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"OpDecorate %group Offset 16\n"
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"%group = OpDecorationGroup\n"
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"OpGroupMemberDecorate %group %Point 1\n",
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"OpMemberDecorate %Point 1 Flat\n"
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"OpMemberDecorate %Point 1 Offset 16\n"},
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// Multiple OpGroupMemberDecorate using the same
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// decoration group.
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{"OpName %group \"group\"\n"
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"OpDecorate %group Flat\n"
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"OpDecorate %group NoPerspective\n"
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"OpDecorate %group Offset 8\n"
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"%group = OpDecorationGroup\n"
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"OpGroupMemberDecorate %group %Point 2\n"
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"OpGroupMemberDecorate %group %Camera 1\n",
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"OpMemberDecorate %Point 2 Flat\n"
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"OpMemberDecorate %Camera 1 Flat\n"
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"OpMemberDecorate %Point 2 NoPerspective\n"
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"OpMemberDecorate %Camera 1 NoPerspective\n"
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"OpMemberDecorate %Point 2 Offset 8\n"
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"OpMemberDecorate %Camera 1 Offset 8\n"},
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// Two groups of member decorations, interleaved.
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// Decoration is with and without operands.
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{"OpName %group0 \"group0\"\n"
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"OpName %group1 \"group1\"\n"
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"OpDecorate %group0 Flat\n"
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"OpDecorate %group0 Offset 8\n"
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"OpDecorate %group1 NoPerspective\n"
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"OpDecorate %group1 Offset 16\n"
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"%group0 = OpDecorationGroup\n"
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"%group1 = OpDecorationGroup\n"
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"OpGroupMemberDecorate %group0 %Point 0\n"
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"OpGroupMemberDecorate %group1 %Point 2\n",
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"OpMemberDecorate %Point 0 Flat\n"
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"OpMemberDecorate %Point 0 Offset 8\n"
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"OpMemberDecorate %Point 2 NoPerspective\n"
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"OpMemberDecorate %Point 2 Offset 16\n"},
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}), );
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INSTANTIATE_TEST_CASE_P(UnrelatedDecorations, FlattenDecorationTest,
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::testing::ValuesIn(std::vector<FlattenDecorationCase>{
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// A non-group non-member decoration is untouched.
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{"OpDecorate %hue Centroid\n"
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"OpDecorate %saturation Flat\n",
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"OpDecorate %hue Centroid\n"
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"OpDecorate %saturation Flat\n"},
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// A non-group member decoration is untouched.
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{"OpMemberDecorate %Point 0 Offset 0\n"
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"OpMemberDecorate %Point 1 Offset 4\n"
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"OpMemberDecorate %Point 1 Flat\n",
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"OpMemberDecorate %Point 0 Offset 0\n"
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"OpMemberDecorate %Point 1 Offset 4\n"
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"OpMemberDecorate %Point 1 Flat\n"},
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// A non-group non-member decoration survives any
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// replacement of group decorations.
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{"OpName %group \"group\"\n"
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"OpDecorate %group Flat\n"
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"OpDecorate %hue Centroid\n"
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"OpDecorate %group NoPerspective\n"
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"%group = OpDecorationGroup\n"
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"OpGroupDecorate %group %hue %saturation\n",
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"OpDecorate %hue Flat\n"
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"OpDecorate %saturation Flat\n"
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"OpDecorate %hue Centroid\n"
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"OpDecorate %hue NoPerspective\n"
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"OpDecorate %saturation NoPerspective\n"},
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// A non-group member decoration survives any
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// replacement of group decorations.
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{"OpDecorate %group Offset 0\n"
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"OpDecorate %group Flat\n"
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"OpMemberDecorate %Point 1 Offset 4\n"
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"%group = OpDecorationGroup\n"
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"OpGroupMemberDecorate %group %Point 0\n",
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"OpMemberDecorate %Point 0 Offset 0\n"
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"OpMemberDecorate %Point 0 Flat\n"
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"OpMemberDecorate %Point 1 Offset 4\n"},
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}), );
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} // anonymous namespace
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