mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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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::Module* module) override {
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bool modified = false;
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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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