mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-24 04:20:13 +00:00
eda2cfbe12
This Cl cleans up the include paths to be relative to the top level directory. Various include-what-you-use fixes have been added.
1100 lines
34 KiB
C++
1100 lines
34 KiB
C++
// Copyright (c) 2018 Google LLC.
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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 <string>
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#include <utility>
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#include <vector>
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#include "gmock/gmock.h"
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#include "source/opt/ir_builder.h"
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#include "source/opt/loop_descriptor.h"
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#include "source/opt/loop_peeling.h"
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#include "test/opt/pass_fixture.h"
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namespace spvtools {
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namespace opt {
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namespace {
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class PeelingPassTest : public PassTest<::testing::Test> {
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public:
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// Generic routine to run the loop peeling pass and check
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LoopPeelingPass::LoopPeelingStats AssembleAndRunPeelingTest(
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const std::string& text_head, const std::string& text_tail, SpvOp opcode,
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const std::string& res_id, const std::string& op1,
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const std::string& op2) {
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std::string opcode_str;
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switch (opcode) {
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case SpvOpSLessThan:
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opcode_str = "OpSLessThan";
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break;
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case SpvOpSGreaterThan:
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opcode_str = "OpSGreaterThan";
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break;
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case SpvOpSLessThanEqual:
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opcode_str = "OpSLessThanEqual";
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break;
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case SpvOpSGreaterThanEqual:
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opcode_str = "OpSGreaterThanEqual";
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break;
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case SpvOpIEqual:
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opcode_str = "OpIEqual";
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break;
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case SpvOpINotEqual:
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opcode_str = "OpINotEqual";
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break;
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default:
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assert(false && "Unhandled");
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break;
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}
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std::string test_cond =
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res_id + " = " + opcode_str + " %bool " + op1 + " " + op2 + "\n";
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LoopPeelingPass::LoopPeelingStats stats;
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SinglePassRunAndDisassemble<LoopPeelingPass>(
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text_head + test_cond + text_tail, true, true, &stats);
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return stats;
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}
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// Generic routine to run the loop peeling pass and check
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LoopPeelingPass::LoopPeelingStats RunPeelingTest(
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const std::string& text_head, const std::string& text_tail, SpvOp opcode,
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const std::string& res_id, const std::string& op1, const std::string& op2,
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size_t nb_of_loops) {
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LoopPeelingPass::LoopPeelingStats stats = AssembleAndRunPeelingTest(
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text_head, text_tail, opcode, res_id, op1, op2);
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Function& f = *context()->module()->begin();
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LoopDescriptor& ld = *context()->GetLoopDescriptor(&f);
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EXPECT_EQ(ld.NumLoops(), nb_of_loops);
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return stats;
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}
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using PeelTraceType =
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std::vector<std::pair<LoopPeelingPass::PeelDirection, uint32_t>>;
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void BuildAndCheckTrace(const std::string& text_head,
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const std::string& text_tail, SpvOp opcode,
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const std::string& res_id, const std::string& op1,
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const std::string& op2,
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const PeelTraceType& expected_peel_trace,
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size_t expected_nb_of_loops) {
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auto stats = RunPeelingTest(text_head, text_tail, opcode, res_id, op1, op2,
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expected_nb_of_loops);
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EXPECT_EQ(stats.peeled_loops_.size(), expected_peel_trace.size());
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if (stats.peeled_loops_.size() != expected_peel_trace.size()) {
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return;
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}
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PeelTraceType::const_iterator expected_trace_it =
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expected_peel_trace.begin();
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decltype(stats.peeled_loops_)::const_iterator stats_it =
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stats.peeled_loops_.begin();
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while (expected_trace_it != expected_peel_trace.end()) {
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EXPECT_EQ(expected_trace_it->first, std::get<1>(*stats_it));
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EXPECT_EQ(expected_trace_it->second, std::get<2>(*stats_it));
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++expected_trace_it;
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++stats_it;
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}
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}
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};
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/*
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Test are derivation of the following generated test from the following GLSL +
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--eliminate-local-multi-store
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#version 330 core
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void main() {
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int a = 0;
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for(int i = 1; i < 10; i += 2) {
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if (i < 3) {
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a += 2;
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}
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}
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}
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The condition is interchanged to test < > <= >= == and peel before/after
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opportunities.
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*/
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TEST_F(PeelingPassTest, PeelingPassBasic) {
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const std::string text_head = R"(
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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 Fragment %main "main"
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OpExecutionMode %main OriginLowerLeft
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OpSource GLSL 330
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OpName %main "main"
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OpName %a "a"
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OpName %i "i"
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%void = OpTypeVoid
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%3 = OpTypeFunction %void
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%int = OpTypeInt 32 1
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%_ptr_Function_int = OpTypePointer Function %int
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%bool = OpTypeBool
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%int_20 = OpConstant %int 20
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%int_19 = OpConstant %int 19
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%int_18 = OpConstant %int 18
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%int_17 = OpConstant %int 17
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%int_16 = OpConstant %int 16
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%int_15 = OpConstant %int 15
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%int_14 = OpConstant %int 14
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%int_13 = OpConstant %int 13
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%int_12 = OpConstant %int 12
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%int_11 = OpConstant %int 11
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%int_10 = OpConstant %int 10
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%int_9 = OpConstant %int 9
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%int_8 = OpConstant %int 8
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%int_7 = OpConstant %int 7
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%int_6 = OpConstant %int 6
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%int_5 = OpConstant %int 5
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%int_4 = OpConstant %int 4
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%int_3 = OpConstant %int 3
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%int_2 = OpConstant %int 2
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%int_1 = OpConstant %int 1
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%int_0 = OpConstant %int 0
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%main = OpFunction %void None %3
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%5 = OpLabel
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%a = OpVariable %_ptr_Function_int Function
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%i = OpVariable %_ptr_Function_int Function
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OpStore %a %int_0
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OpStore %i %int_0
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OpBranch %11
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%11 = OpLabel
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%31 = OpPhi %int %int_0 %5 %33 %14
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%32 = OpPhi %int %int_1 %5 %30 %14
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OpLoopMerge %13 %14 None
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OpBranch %15
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%15 = OpLabel
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%19 = OpSLessThan %bool %32 %int_20
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OpBranchConditional %19 %12 %13
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%12 = OpLabel
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)";
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const std::string text_tail = R"(
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OpSelectionMerge %24 None
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OpBranchConditional %22 %23 %24
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%23 = OpLabel
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%27 = OpIAdd %int %31 %int_2
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OpStore %a %27
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OpBranch %24
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%24 = OpLabel
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%33 = OpPhi %int %31 %12 %27 %23
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OpBranch %14
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%14 = OpLabel
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%30 = OpIAdd %int %32 %int_2
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OpStore %i %30
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OpBranch %11
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%13 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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auto run_test = [&text_head, &text_tail, this](SpvOp opcode,
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const std::string& op1,
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const std::string& op2) {
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auto stats =
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RunPeelingTest(text_head, text_tail, opcode, "%22", op1, op2, 2);
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EXPECT_EQ(stats.peeled_loops_.size(), 1u);
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if (stats.peeled_loops_.size() != 1u)
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return std::pair<LoopPeelingPass::PeelDirection, uint32_t>{
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LoopPeelingPass::PeelDirection::kNone, 0};
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return std::pair<LoopPeelingPass::PeelDirection, uint32_t>{
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std::get<1>(*stats.peeled_loops_.begin()),
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std::get<2>(*stats.peeled_loops_.begin())};
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};
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// Test LT
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// Peel before by a factor of 2.
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{
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SCOPED_TRACE("Peel before iv < 4");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThan, "%32", "%int_4");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before 4 > iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThan, "%int_4", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before iv < 5");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThan, "%32", "%int_5");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before 5 > iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThan, "%int_5", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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// Peel after by a factor of 2.
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{
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SCOPED_TRACE("Peel after iv < 16");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThan, "%32", "%int_16");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel after 16 > iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThan, "%int_16", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel after iv < 17");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThan, "%32", "%int_17");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel after 17 > iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThan, "%int_17", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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// Test GT
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// Peel before by a factor of 2.
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{
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SCOPED_TRACE("Peel before iv > 5");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThan, "%32", "%int_5");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before 5 < iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThan, "%int_5", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before iv > 4");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThan, "%32", "%int_4");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before 4 < iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThan, "%int_4", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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// Peel after by a factor of 2.
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{
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SCOPED_TRACE("Peel after iv > 16");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThan, "%32", "%int_16");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel after 16 < iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThan, "%int_16", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel after iv > 17");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThan, "%32", "%int_17");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel after 17 < iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThan, "%int_17", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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// Test LE
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// Peel before by a factor of 2.
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{
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SCOPED_TRACE("Peel before iv <= 4");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThanEqual, "%32", "%int_4");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before 4 => iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThanEqual, "%int_4", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before iv <= 3");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThanEqual, "%32", "%int_3");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before 3 => iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThanEqual, "%int_3", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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// Peel after by a factor of 2.
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{
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SCOPED_TRACE("Peel after iv <= 16");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThanEqual, "%32", "%int_16");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel after 16 => iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThanEqual, "%int_16", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel after iv <= 15");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThanEqual, "%32", "%int_15");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel after 15 => iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThanEqual, "%int_15", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
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EXPECT_EQ(peel_info.second, 2u);
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}
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// Test GE
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// Peel before by a factor of 2.
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{
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SCOPED_TRACE("Peel before iv >= 5");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThanEqual, "%32", "%int_5");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before 35 >= iv");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSLessThanEqual, "%int_5", "%32");
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EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
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EXPECT_EQ(peel_info.second, 2u);
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}
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{
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SCOPED_TRACE("Peel before iv >= 4");
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std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
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run_test(SpvOpSGreaterThanEqual, "%32", "%int_4");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
|
|
EXPECT_EQ(peel_info.second, 2u);
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel before 4 <= iv");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpSLessThanEqual, "%int_4", "%32");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
|
|
EXPECT_EQ(peel_info.second, 2u);
|
|
}
|
|
|
|
// Peel after by a factor of 2.
|
|
{
|
|
SCOPED_TRACE("Peel after iv >= 17");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpSGreaterThanEqual, "%32", "%int_17");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
|
|
EXPECT_EQ(peel_info.second, 2u);
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 17 <= iv");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpSLessThanEqual, "%int_17", "%32");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
|
|
EXPECT_EQ(peel_info.second, 2u);
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after iv >= 16");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpSGreaterThanEqual, "%32", "%int_16");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
|
|
EXPECT_EQ(peel_info.second, 2u);
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 16 <= iv");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpSLessThanEqual, "%int_16", "%32");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
|
|
EXPECT_EQ(peel_info.second, 2u);
|
|
}
|
|
|
|
// Test EQ
|
|
// Peel before by a factor of 1.
|
|
{
|
|
SCOPED_TRACE("Peel before iv == 1");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpIEqual, "%32", "%int_1");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
|
|
EXPECT_EQ(peel_info.second, 1u);
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel before 1 == iv");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpIEqual, "%int_1", "%32");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
|
|
EXPECT_EQ(peel_info.second, 1u);
|
|
}
|
|
|
|
// Peel after by a factor of 1.
|
|
{
|
|
SCOPED_TRACE("Peel after iv == 19");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpIEqual, "%32", "%int_19");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
|
|
EXPECT_EQ(peel_info.second, 1u);
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 19 == iv");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpIEqual, "%int_19", "%32");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
|
|
EXPECT_EQ(peel_info.second, 1u);
|
|
}
|
|
|
|
// Test NE
|
|
// Peel before by a factor of 1.
|
|
{
|
|
SCOPED_TRACE("Peel before iv != 1");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpINotEqual, "%32", "%int_1");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
|
|
EXPECT_EQ(peel_info.second, 1u);
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel before 1 != iv");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpINotEqual, "%int_1", "%32");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kBefore);
|
|
EXPECT_EQ(peel_info.second, 1u);
|
|
}
|
|
|
|
// Peel after by a factor of 1.
|
|
{
|
|
SCOPED_TRACE("Peel after iv != 19");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpINotEqual, "%32", "%int_19");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
|
|
EXPECT_EQ(peel_info.second, 1u);
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 19 != iv");
|
|
|
|
std::pair<LoopPeelingPass::PeelDirection, uint32_t> peel_info =
|
|
run_test(SpvOpINotEqual, "%int_19", "%32");
|
|
EXPECT_EQ(peel_info.first, LoopPeelingPass::PeelDirection::kAfter);
|
|
EXPECT_EQ(peel_info.second, 1u);
|
|
}
|
|
|
|
// No peel.
|
|
{
|
|
SCOPED_TRACE("No Peel: 20 => iv");
|
|
|
|
auto stats = RunPeelingTest(text_head, text_tail, SpvOpSLessThanEqual,
|
|
"%22", "%int_20", "%32", 1);
|
|
|
|
EXPECT_EQ(stats.peeled_loops_.size(), 0u);
|
|
}
|
|
}
|
|
|
|
/*
|
|
Test are derivation of the following generated test from the following GLSL +
|
|
--eliminate-local-multi-store
|
|
|
|
#version 330 core
|
|
void main() {
|
|
int a = 0;
|
|
for(int i = 0; i < 10; ++i) {
|
|
if (i < 3) {
|
|
a += 2;
|
|
}
|
|
if (i < 1) {
|
|
a += 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
The condition is interchanged to test < > <= >= == and peel before/after
|
|
opportunities.
|
|
*/
|
|
TEST_F(PeelingPassTest, MultiplePeelingPass) {
|
|
const std::string text_head = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginLowerLeft
|
|
OpSource GLSL 330
|
|
OpName %main "main"
|
|
OpName %a "a"
|
|
OpName %i "i"
|
|
%void = OpTypeVoid
|
|
%3 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%bool = OpTypeBool
|
|
%int_10 = OpConstant %int 10
|
|
%int_9 = OpConstant %int 9
|
|
%int_8 = OpConstant %int 8
|
|
%int_7 = OpConstant %int 7
|
|
%int_6 = OpConstant %int 6
|
|
%int_5 = OpConstant %int 5
|
|
%int_4 = OpConstant %int 4
|
|
%int_3 = OpConstant %int 3
|
|
%int_2 = OpConstant %int 2
|
|
%int_1 = OpConstant %int 1
|
|
%int_0 = OpConstant %int 0
|
|
%main = OpFunction %void None %3
|
|
%5 = OpLabel
|
|
%a = OpVariable %_ptr_Function_int Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
OpStore %a %int_0
|
|
OpStore %i %int_0
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
%37 = OpPhi %int %int_0 %5 %40 %14
|
|
%38 = OpPhi %int %int_0 %5 %36 %14
|
|
OpLoopMerge %13 %14 None
|
|
OpBranch %15
|
|
%15 = OpLabel
|
|
%19 = OpSLessThan %bool %38 %int_10
|
|
OpBranchConditional %19 %12 %13
|
|
%12 = OpLabel
|
|
)";
|
|
const std::string text_tail = R"(
|
|
OpSelectionMerge %24 None
|
|
OpBranchConditional %22 %23 %24
|
|
%23 = OpLabel
|
|
%27 = OpIAdd %int %37 %int_2
|
|
OpStore %a %27
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
%39 = OpPhi %int %37 %12 %27 %23
|
|
%30 = OpSLessThan %bool %38 %int_1
|
|
OpSelectionMerge %32 None
|
|
OpBranchConditional %30 %31 %32
|
|
%31 = OpLabel
|
|
%34 = OpIAdd %int %39 %int_2
|
|
OpStore %a %34
|
|
OpBranch %32
|
|
%32 = OpLabel
|
|
%40 = OpPhi %int %39 %24 %34 %31
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
%36 = OpIAdd %int %38 %int_1
|
|
OpStore %i %36
|
|
OpBranch %11
|
|
%13 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
auto run_test = [&text_head, &text_tail, this](
|
|
SpvOp opcode, const std::string& op1,
|
|
const std::string& op2,
|
|
const PeelTraceType& expected_peel_trace) {
|
|
BuildAndCheckTrace(text_head, text_tail, opcode, "%22", op1, op2,
|
|
expected_peel_trace, expected_peel_trace.size() + 1);
|
|
};
|
|
|
|
// Test LT
|
|
// Peel before by a factor of 3.
|
|
{
|
|
SCOPED_TRACE("Peel before iv < 3");
|
|
|
|
run_test(SpvOpSLessThan, "%38", "%int_3",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 3u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel before 3 > iv");
|
|
|
|
run_test(SpvOpSGreaterThan, "%int_3", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 3u}});
|
|
}
|
|
|
|
// Peel after by a factor of 2.
|
|
{
|
|
SCOPED_TRACE("Peel after iv < 8");
|
|
|
|
run_test(SpvOpSLessThan, "%38", "%int_8",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 2u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 8 > iv");
|
|
|
|
run_test(SpvOpSGreaterThan, "%int_8", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 2u}});
|
|
}
|
|
|
|
// Test GT
|
|
// Peel before by a factor of 2.
|
|
{
|
|
SCOPED_TRACE("Peel before iv > 2");
|
|
|
|
run_test(SpvOpSGreaterThan, "%38", "%int_2",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 2u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel before 2 < iv");
|
|
|
|
run_test(SpvOpSLessThan, "%int_2", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 2u}});
|
|
}
|
|
|
|
// Peel after by a factor of 3.
|
|
{
|
|
SCOPED_TRACE("Peel after iv > 7");
|
|
|
|
run_test(SpvOpSGreaterThan, "%38", "%int_7",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 3u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 7 < iv");
|
|
|
|
run_test(SpvOpSLessThan, "%int_7", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 3u}});
|
|
}
|
|
|
|
// Test LE
|
|
// Peel before by a factor of 2.
|
|
{
|
|
SCOPED_TRACE("Peel before iv <= 1");
|
|
|
|
run_test(SpvOpSLessThanEqual, "%38", "%int_1",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 2u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel before 1 => iv");
|
|
|
|
run_test(SpvOpSGreaterThanEqual, "%int_1", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 2u}});
|
|
}
|
|
|
|
// Peel after by a factor of 2.
|
|
{
|
|
SCOPED_TRACE("Peel after iv <= 7");
|
|
|
|
run_test(SpvOpSLessThanEqual, "%38", "%int_7",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 2u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 7 => iv");
|
|
|
|
run_test(SpvOpSGreaterThanEqual, "%int_7", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 2u}});
|
|
}
|
|
|
|
// Test GE
|
|
// Peel before by a factor of 2.
|
|
{
|
|
SCOPED_TRACE("Peel before iv >= 2");
|
|
|
|
run_test(SpvOpSGreaterThanEqual, "%38", "%int_2",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 2u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel before 2 <= iv");
|
|
|
|
run_test(SpvOpSLessThanEqual, "%int_2", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 2u}});
|
|
}
|
|
|
|
// Peel after by a factor of 2.
|
|
{
|
|
SCOPED_TRACE("Peel after iv >= 8");
|
|
|
|
run_test(SpvOpSGreaterThanEqual, "%38", "%int_8",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 2u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 8 <= iv");
|
|
|
|
run_test(SpvOpSLessThanEqual, "%int_8", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 2u}});
|
|
}
|
|
// Test EQ
|
|
// Peel before by a factor of 1.
|
|
{
|
|
SCOPED_TRACE("Peel before iv == 0");
|
|
|
|
run_test(SpvOpIEqual, "%38", "%int_0",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 1u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel before 0 == iv");
|
|
|
|
run_test(SpvOpIEqual, "%int_0", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 1u}});
|
|
}
|
|
|
|
// Peel after by a factor of 1.
|
|
{
|
|
SCOPED_TRACE("Peel after iv == 9");
|
|
|
|
run_test(SpvOpIEqual, "%38", "%int_9",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 1u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 9 == iv");
|
|
|
|
run_test(SpvOpIEqual, "%int_9", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 1u}});
|
|
}
|
|
|
|
// Test NE
|
|
// Peel before by a factor of 1.
|
|
{
|
|
SCOPED_TRACE("Peel before iv != 0");
|
|
|
|
run_test(SpvOpINotEqual, "%38", "%int_0",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 1u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel before 0 != iv");
|
|
|
|
run_test(SpvOpINotEqual, "%int_0", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 1u}});
|
|
}
|
|
|
|
// Peel after by a factor of 1.
|
|
{
|
|
SCOPED_TRACE("Peel after iv != 9");
|
|
|
|
run_test(SpvOpINotEqual, "%38", "%int_9",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 1u}});
|
|
}
|
|
{
|
|
SCOPED_TRACE("Peel after 9 != iv");
|
|
|
|
run_test(SpvOpINotEqual, "%int_9", "%38",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 1u}});
|
|
}
|
|
}
|
|
|
|
/*
|
|
Test are derivation of the following generated test from the following GLSL +
|
|
--eliminate-local-multi-store
|
|
|
|
#version 330 core
|
|
void main() {
|
|
int a = 0;
|
|
for (int i = 0; i < 10; i++) {
|
|
for (int j = 0; j < 10; j++) {
|
|
if (i < 3) {
|
|
a += 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
TEST_F(PeelingPassTest, PeelingNestedPass) {
|
|
const std::string text_head = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginLowerLeft
|
|
OpSource GLSL 330
|
|
OpName %main "main"
|
|
OpName %a "a"
|
|
OpName %i "i"
|
|
OpName %j "j"
|
|
%void = OpTypeVoid
|
|
%3 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%int_7 = OpConstant %int 7
|
|
%int_3 = OpConstant %int 3
|
|
%int_2 = OpConstant %int 2
|
|
%int_1 = OpConstant %int 1
|
|
%43 = OpUndef %int
|
|
%main = OpFunction %void None %3
|
|
%5 = OpLabel
|
|
%a = OpVariable %_ptr_Function_int Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
%j = OpVariable %_ptr_Function_int Function
|
|
OpStore %a %int_0
|
|
OpStore %i %int_0
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
%41 = OpPhi %int %int_0 %5 %45 %14
|
|
%42 = OpPhi %int %int_0 %5 %40 %14
|
|
%44 = OpPhi %int %43 %5 %46 %14
|
|
OpLoopMerge %13 %14 None
|
|
OpBranch %15
|
|
%15 = OpLabel
|
|
%19 = OpSLessThan %bool %42 %int_10
|
|
OpBranchConditional %19 %12 %13
|
|
%12 = OpLabel
|
|
OpStore %j %int_0
|
|
OpBranch %21
|
|
%21 = OpLabel
|
|
%45 = OpPhi %int %41 %12 %47 %24
|
|
%46 = OpPhi %int %int_0 %12 %38 %24
|
|
OpLoopMerge %23 %24 None
|
|
OpBranch %25
|
|
%25 = OpLabel
|
|
%27 = OpSLessThan %bool %46 %int_10
|
|
OpBranchConditional %27 %22 %23
|
|
%22 = OpLabel
|
|
)";
|
|
|
|
const std::string text_tail = R"(
|
|
OpSelectionMerge %32 None
|
|
OpBranchConditional %30 %31 %32
|
|
%31 = OpLabel
|
|
%35 = OpIAdd %int %45 %int_2
|
|
OpStore %a %35
|
|
OpBranch %32
|
|
%32 = OpLabel
|
|
%47 = OpPhi %int %45 %22 %35 %31
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
%38 = OpIAdd %int %46 %int_1
|
|
OpStore %j %38
|
|
OpBranch %21
|
|
%23 = OpLabel
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
%40 = OpIAdd %int %42 %int_1
|
|
OpStore %i %40
|
|
OpBranch %11
|
|
%13 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
auto run_test =
|
|
[&text_head, &text_tail, this](
|
|
SpvOp opcode, const std::string& op1, const std::string& op2,
|
|
const PeelTraceType& expected_peel_trace, size_t nb_of_loops) {
|
|
BuildAndCheckTrace(text_head, text_tail, opcode, "%30", op1, op2,
|
|
expected_peel_trace, nb_of_loops);
|
|
};
|
|
|
|
// Peeling outer before by a factor of 3.
|
|
{
|
|
SCOPED_TRACE("Peel before iv_i < 3");
|
|
|
|
// Expect peel before by a factor of 3 and 4 loops at the end.
|
|
run_test(SpvOpSLessThan, "%42", "%int_3",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 3u}}, 4);
|
|
}
|
|
// Peeling outer loop after by a factor of 3.
|
|
{
|
|
SCOPED_TRACE("Peel after iv_i < 7");
|
|
|
|
// Expect peel after by a factor of 3 and 4 loops at the end.
|
|
run_test(SpvOpSLessThan, "%42", "%int_7",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 3u}}, 4);
|
|
}
|
|
|
|
// Peeling inner loop before by a factor of 3.
|
|
{
|
|
SCOPED_TRACE("Peel before iv_j < 3");
|
|
|
|
// Expect peel before by a factor of 3 and 3 loops at the end.
|
|
run_test(SpvOpSLessThan, "%46", "%int_3",
|
|
{{LoopPeelingPass::PeelDirection::kBefore, 3u}}, 3);
|
|
}
|
|
// Peeling inner loop after by a factor of 3.
|
|
{
|
|
SCOPED_TRACE("Peel after iv_j < 7");
|
|
|
|
// Expect peel after by a factor of 3 and 3 loops at the end.
|
|
run_test(SpvOpSLessThan, "%46", "%int_7",
|
|
{{LoopPeelingPass::PeelDirection::kAfter, 3u}}, 3);
|
|
}
|
|
|
|
// Not unworkable condition.
|
|
{
|
|
SCOPED_TRACE("No peel");
|
|
|
|
// Expect no peeling and 2 loops at the end.
|
|
run_test(SpvOpSLessThan, "%46", "%42", {}, 2);
|
|
}
|
|
|
|
// Could do a peeling of 3, but the goes over the threshold.
|
|
{
|
|
SCOPED_TRACE("Over threshold");
|
|
|
|
size_t current_threshold = LoopPeelingPass::GetLoopPeelingThreshold();
|
|
LoopPeelingPass::SetLoopPeelingThreshold(1u);
|
|
// Expect no peeling and 2 loops at the end.
|
|
run_test(SpvOpSLessThan, "%46", "%int_7", {}, 2);
|
|
LoopPeelingPass::SetLoopPeelingThreshold(current_threshold);
|
|
}
|
|
}
|
|
/*
|
|
Test are derivation of the following generated test from the following GLSL +
|
|
--eliminate-local-multi-store
|
|
|
|
#version 330 core
|
|
void main() {
|
|
int a = 0;
|
|
for (int i = 0, j = 0; i < 10; j++, i++) {
|
|
if (i < j) {
|
|
a += 2;
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
TEST_F(PeelingPassTest, PeelingNoChanges) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginLowerLeft
|
|
OpSource GLSL 330
|
|
OpName %main "main"
|
|
OpName %a "a"
|
|
OpName %i "i"
|
|
OpName %j "j"
|
|
%void = OpTypeVoid
|
|
%3 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%int_2 = OpConstant %int 2
|
|
%int_1 = OpConstant %int 1
|
|
%main = OpFunction %void None %3
|
|
%5 = OpLabel
|
|
%a = OpVariable %_ptr_Function_int Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
%j = OpVariable %_ptr_Function_int Function
|
|
OpStore %a %int_0
|
|
OpStore %i %int_0
|
|
OpStore %j %int_0
|
|
OpBranch %12
|
|
%12 = OpLabel
|
|
%34 = OpPhi %int %int_0 %5 %37 %15
|
|
%35 = OpPhi %int %int_0 %5 %33 %15
|
|
%36 = OpPhi %int %int_0 %5 %31 %15
|
|
OpLoopMerge %14 %15 None
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
%20 = OpSLessThan %bool %35 %int_10
|
|
OpBranchConditional %20 %13 %14
|
|
%13 = OpLabel
|
|
%23 = OpSLessThan %bool %35 %36
|
|
OpSelectionMerge %25 None
|
|
OpBranchConditional %23 %24 %25
|
|
%24 = OpLabel
|
|
%28 = OpIAdd %int %34 %int_2
|
|
OpStore %a %28
|
|
OpBranch %25
|
|
%25 = OpLabel
|
|
%37 = OpPhi %int %34 %13 %28 %24
|
|
OpBranch %15
|
|
%15 = OpLabel
|
|
%31 = OpIAdd %int %36 %int_1
|
|
OpStore %j %31
|
|
%33 = OpIAdd %int %35 %int_1
|
|
OpStore %i %33
|
|
OpBranch %12
|
|
%14 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
{
|
|
auto result =
|
|
SinglePassRunAndDisassemble<LoopPeelingPass>(text, true, false);
|
|
|
|
EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace opt
|
|
} // namespace spvtools
|