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https://github.com/KhronosGroup/SPIRV-Tools
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476cae6f7d
This is the first part of adding the IRContext. This class is meant to hold the extra data that is build on top of the module that it owns. The first part will simply create the IRContext class and get it passed to the passes in place of the module. For now it does not have any functionality of its own, but it acts more as a wrapper for the module. The functions that I added to the IRContext are those that either traverse the headers or add to them. I did this because we may decide to have other ways of dealing with these sections (for example adding a type pool, or use the decoration manager). I also added the function that add to the header because the IRContext needs to know when an instruction is added to update other data structures appropriately. Note that there is still lots of work that needs to be done. There are still many places that change the module, and do not inform the context. That will be the next step.
112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
// Copyright (c) 2016 Google 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 "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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// A pass turning all none debug line instructions into Nop.
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class NopifyPass : public opt::Pass {
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public:
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const char* name() const override { return "NopifyPass"; }
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Status Process(ir::IRContext* irContext) override {
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bool modified = false;
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irContext->module()->ForEachInst(
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[&modified](ir::Instruction* inst) {
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inst->ToNop();
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modified = true;
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},
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/* run_on_debug_line_insts = */ false);
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return modified ? Status::SuccessWithChange : Status::SuccessWithoutChange;
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}
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};
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using PassTestForLineDebugInfo = PassTest<::testing::Test>;
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// This test's purpose to show our implementation choice: line debug info is
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// preserved even if the following instruction is killed. It serves as a guard
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// of potential behavior changes.
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TEST_F(PassTestForLineDebugInfo, KeepLineDebugInfo) {
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// clang-format off
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const char* text =
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"OpCapability Shader "
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"%1 = OpExtInstImport \"GLSL.std.450\" "
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"OpMemoryModel Logical GLSL450 "
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"OpEntryPoint Vertex %2 \"main\" "
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"%3 = OpString \"minimal.vert\" "
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"OpNoLine "
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"OpLine %3 10 10 "
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"%void = OpTypeVoid "
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"OpLine %3 100 100 "
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"%5 = OpTypeFunction %void "
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"%2 = OpFunction %void None %5 "
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"OpLine %3 1 1 "
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"OpNoLine "
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"OpLine %3 2 2 "
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"OpLine %3 3 3 "
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"%6 = OpLabel "
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"OpLine %3 4 4 "
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"OpNoLine "
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"OpReturn "
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"OpLine %3 4 4 "
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"OpNoLine "
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"OpFunctionEnd ";
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// clang-format on
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const char* result_keep_nop =
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"OpNop\n"
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"OpNop\n"
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"OpNop\n"
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"OpNop\n"
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"OpNop\n"
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"OpNoLine\n"
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"OpLine %3 10 10\n"
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"OpNop\n"
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"OpLine %3 100 100\n"
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"OpNop\n"
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"OpNop\n"
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"OpLine %3 1 1\n"
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"OpNoLine\n"
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"OpLine %3 2 2\n"
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"OpLine %3 3 3\n"
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"OpNop\n"
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"OpLine %3 4 4\n"
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"OpNoLine\n"
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"OpNop\n"
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"OpLine %3 4 4\n"
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"OpNoLine\n"
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"OpNop\n";
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SinglePassRunAndCheck<NopifyPass>(text, result_keep_nop,
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/* skip_nop = */ false);
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const char* result_skip_nop =
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"OpNoLine\n"
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"OpLine %3 10 10\n"
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"OpLine %3 100 100\n"
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"OpLine %3 1 1\n"
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"OpNoLine\n"
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"OpLine %3 2 2\n"
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"OpLine %3 3 3\n"
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"OpLine %3 4 4\n"
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"OpNoLine\n"
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"OpLine %3 4 4\n"
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"OpNoLine\n";
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SinglePassRunAndCheck<NopifyPass>(text, result_skip_nop,
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/* skip_nop = */ true);
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}
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} // anonymous namespace
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