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https://github.com/capstone-engine/llvm-capstone.git
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28d418b16c
Need to finalize the DIBuilder to avoid leak sanitizer errors
like this:
Direct leak of 48 byte(s) in 1 object(s) allocated from:
#0 0x55c99ea1761d in operator new(unsigned long)
#1 0x55c9a518ae49 in operator new
#2 0x55c9a518ae49 in llvm::MDTuple::getImpl(...)
#3 0x55c9a4f1b1ec in getTemporary
#4 0x55c9a4f1b1ec in llvm::DIBuilder::createFunction(...)
109 lines
4.0 KiB
C++
109 lines
4.0 KiB
C++
//===- MachineBasicBlockTest.cpp ------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/CodeGen/MachineInstrBuilder.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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#include "llvm/CodeGen/TargetFrameLowering.h"
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#include "llvm/CodeGen/TargetInstrInfo.h"
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#include "llvm/CodeGen/TargetLowering.h"
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#include "llvm/CodeGen/TargetSubtargetInfo.h"
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#include "llvm/IR/DIBuilder.h"
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#include "llvm/IR/DebugInfoMetadata.h"
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#include "llvm/IR/IRBuilder.h"
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#include "llvm/MC/TargetRegistry.h"
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#include "llvm/Target/TargetMachine.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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// Include helper functions to ease the manipulation of MachineFunctions.
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#include "MFCommon.inc"
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TEST(FindDebugLocTest, DifferentIterators) {
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LLVMContext Ctx;
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Module Mod("Module", Ctx);
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auto MF = createMachineFunction(Ctx, Mod);
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auto &MBB = *MF->CreateMachineBasicBlock();
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// Create metadata: CU, subprogram, some blocks and an inline function
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// scope.
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DIBuilder DIB(Mod);
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DIFile *OurFile = DIB.createFile("foo.c", "/bar");
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DICompileUnit *OurCU =
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DIB.createCompileUnit(dwarf::DW_LANG_C99, OurFile, "", false, "", 0);
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auto OurSubT =
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DIB.createSubroutineType(DIB.getOrCreateTypeArray(std::nullopt));
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DISubprogram *OurFunc =
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DIB.createFunction(OurCU, "bees", "", OurFile, 1, OurSubT, 1,
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DINode::FlagZero, DISubprogram::SPFlagDefinition);
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DebugLoc DL0;
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DebugLoc DL1 = DILocation::get(Ctx, 1, 0, OurFunc);
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DebugLoc DL2 = DILocation::get(Ctx, 2, 0, OurFunc);
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DebugLoc DL3 = DILocation::get(Ctx, 3, 0, OurFunc);
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// Test using and empty MBB.
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EXPECT_EQ(DL0, MBB.findDebugLoc(MBB.instr_begin()));
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EXPECT_EQ(DL0, MBB.findDebugLoc(MBB.instr_end()));
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EXPECT_EQ(DL0, MBB.rfindDebugLoc(MBB.instr_rbegin()));
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EXPECT_EQ(DL0, MBB.rfindDebugLoc(MBB.instr_rend()));
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EXPECT_EQ(DL0, MBB.findPrevDebugLoc(MBB.instr_begin()));
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EXPECT_EQ(DL0, MBB.findPrevDebugLoc(MBB.instr_end()));
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EXPECT_EQ(DL0, MBB.rfindPrevDebugLoc(MBB.instr_rbegin()));
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EXPECT_EQ(DL0, MBB.rfindPrevDebugLoc(MBB.instr_rend()));
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// Insert two MIs with DebugLoc DL1 and DL3.
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// Also add a DBG_VALUE with a different DebugLoc in between.
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MCInstrDesc COPY = {TargetOpcode::COPY, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
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MCInstrDesc DBG = {TargetOpcode::DBG_VALUE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
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auto MI3 = MF->CreateMachineInstr(COPY, DL3);
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MBB.insert(MBB.begin(), MI3);
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auto MI2 = MF->CreateMachineInstr(DBG, DL2);
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MBB.insert(MBB.begin(), MI2);
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auto MI1 = MF->CreateMachineInstr(COPY, DL1);
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MBB.insert(MBB.begin(), MI1);
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// Test using two MIs with a debug instruction in between.
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EXPECT_EQ(DL1, MBB.findDebugLoc(MBB.instr_begin()));
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EXPECT_EQ(DL1, MBB.findDebugLoc(MI1));
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EXPECT_EQ(DL3, MBB.findDebugLoc(MI2));
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EXPECT_EQ(DL3, MBB.findDebugLoc(MI3));
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EXPECT_EQ(DL0, MBB.findDebugLoc(MBB.instr_end()));
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EXPECT_EQ(DL1, MBB.rfindDebugLoc(MBB.instr_rend()));
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EXPECT_EQ(DL1, MBB.rfindDebugLoc(MI1));
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EXPECT_EQ(DL3, MBB.rfindDebugLoc(MI2));
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EXPECT_EQ(DL3, MBB.rfindDebugLoc(MI3));
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EXPECT_EQ(DL3, MBB.rfindDebugLoc(MBB.instr_rbegin()));
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EXPECT_EQ(DL0, MBB.findPrevDebugLoc(MBB.instr_begin()));
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EXPECT_EQ(DL0, MBB.findPrevDebugLoc(MI1));
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EXPECT_EQ(DL1, MBB.findPrevDebugLoc(MI2));
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EXPECT_EQ(DL1, MBB.findPrevDebugLoc(MI3));
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EXPECT_EQ(DL3, MBB.findPrevDebugLoc(MBB.instr_end()));
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EXPECT_EQ(DL0, MBB.rfindPrevDebugLoc(MBB.instr_rend()));
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EXPECT_EQ(DL0, MBB.rfindPrevDebugLoc(MI1));
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EXPECT_EQ(DL1, MBB.rfindPrevDebugLoc(MI2));
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EXPECT_EQ(DL1, MBB.rfindPrevDebugLoc(MI3));
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EXPECT_EQ(DL1, MBB.rfindPrevDebugLoc(MBB.instr_rbegin()));
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// Finalize DIBuilder to avoid memory leaks.
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DIB.finalize();
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}
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} // end namespace
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