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llvm-mirror/unittests/CodeGen/MachineOperandTest.cpp
Philipp Krones 0d572a30c9 [MC] Untangle MCContext and MCObjectFileInfo 
This untangles the MCContext and the MCObjectFileInfo. There is a circular
dependency between MCContext and MCObjectFileInfo. Currently this dependency
also exists during construction: You can't contruct a MOFI without a MCContext
without constructing the MCContext with a dummy version of that MOFI first.
This removes this dependency during construction. In a perfect world,
MCObjectFileInfo wouldn't depend on MCContext at all, but only be stored in the
MCContext, like other MC information. This is future work.

This also shifts/adds more information to the MCContext making it more
available to the different targets. Namely:

- TargetTriple
- ObjectFileType
- SubtargetInfo

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D101462
2021-05-05 10:03:02 -07:00

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//===- MachineOperandTest.cpp ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/ADT/ilist_node.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/ModuleSlotTracker.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(MachineOperandTest, ChangeToTargetIndexTest) {
// Creating a MachineOperand to change it to TargetIndex
MachineOperand MO = MachineOperand::CreateImm(50);
// Checking some precondition on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isImm());
ASSERT_TRUE(MO.getImm() == 50);
ASSERT_FALSE(MO.isTargetIndex());
// Changing to TargetIndex with some arbitrary values
// for index, offset and flags.
MO.ChangeToTargetIndex(74, 57, 12);
// Checking that the mutation to TargetIndex happened
// correctly.
ASSERT_TRUE(MO.isTargetIndex());
ASSERT_TRUE(MO.getIndex() == 74);
ASSERT_TRUE(MO.getOffset() == 57);
ASSERT_TRUE(MO.getTargetFlags() == 12);
}
TEST(MachineOperandTest, PrintRegisterMask) {
uint32_t Dummy;
MachineOperand MO = MachineOperand::CreateRegMask(&Dummy);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isRegMask());
ASSERT_TRUE(MO.getRegMask() == &Dummy);
// Print a MachineOperand containing a RegMask. Here we check that without a
// TRI and IntrinsicInfo we still print a less detailed regmask.
std::string str;
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "<regmask ...>");
}
TEST(MachineOperandTest, PrintSubReg) {
// Create a MachineOperand with RegNum=1 and SubReg=5.
MachineOperand MO = MachineOperand::CreateReg(
/*Reg=*/1, /*isDef=*/false, /*isImp=*/false, /*isKill=*/false,
/*isDead=*/false, /*isUndef=*/false, /*isEarlyClobber=*/false,
/*SubReg=*/5, /*isDebug=*/false, /*isInternalRead=*/false);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isReg());
ASSERT_TRUE(MO.getReg() == 1);
ASSERT_TRUE(MO.getSubReg() == 5);
// Print a MachineOperand containing a SubReg. Here we check that without a
// TRI and IntrinsicInfo we can still print the subreg index.
std::string str;
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "$physreg1.subreg5");
}
TEST(MachineOperandTest, PrintCImm) {
LLVMContext Context;
APInt Int(128, UINT64_MAX);
++Int;
ConstantInt *CImm = ConstantInt::get(Context, Int);
// Create a MachineOperand with an Imm=(UINT64_MAX + 1)
MachineOperand MO = MachineOperand::CreateCImm(CImm);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isCImm());
ASSERT_TRUE(MO.getCImm() == CImm);
ASSERT_TRUE(MO.getCImm()->getValue() == Int);
// Print a MachineOperand containing a SubReg. Here we check that without a
// TRI and IntrinsicInfo we can still print the subreg index.
std::string str;
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "i128 18446744073709551616");
}
TEST(MachineOperandTest, PrintSubRegIndex) {
// Create a MachineOperand with an immediate and print it as a subreg index.
MachineOperand MO = MachineOperand::CreateImm(3);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isImm());
ASSERT_TRUE(MO.getImm() == 3);
// Print a MachineOperand containing a SubRegIdx. Here we check that without a
// TRI and IntrinsicInfo we can print the operand as a subreg index.
std::string str;
raw_string_ostream OS(str);
MachineOperand::printSubRegIdx(OS, MO.getImm(), nullptr);
ASSERT_TRUE(OS.str() == "%subreg.3");
}
TEST(MachineOperandTest, PrintCPI) {
// Create a MachineOperand with a constant pool index and print it.
MachineOperand MO = MachineOperand::CreateCPI(0, 8);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isCPI());
ASSERT_TRUE(MO.getIndex() == 0);
ASSERT_TRUE(MO.getOffset() == 8);
// Print a MachineOperand containing a constant pool index and a positive
// offset.
std::string str;
{
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "%const.0 + 8");
}
str.clear();
MO.setOffset(-12);
// Print a MachineOperand containing a constant pool index and a negative
// offset.
{
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "%const.0 - 12");
}
}
TEST(MachineOperandTest, PrintTargetIndexName) {
// Create a MachineOperand with a target index and print it.
MachineOperand MO = MachineOperand::CreateTargetIndex(0, 8);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isTargetIndex());
ASSERT_TRUE(MO.getIndex() == 0);
ASSERT_TRUE(MO.getOffset() == 8);
// Print a MachineOperand containing a target index and a positive offset.
std::string str;
{
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "target-index(<unknown>) + 8");
}
str.clear();
MO.setOffset(-12);
// Print a MachineOperand containing a target index and a negative offset.
{
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "target-index(<unknown>) - 12");
}
}
TEST(MachineOperandTest, PrintJumpTableIndex) {
// Create a MachineOperand with a jump-table index and print it.
MachineOperand MO = MachineOperand::CreateJTI(3);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isJTI());
ASSERT_TRUE(MO.getIndex() == 3);
// Print a MachineOperand containing a jump-table index.
std::string str;
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "%jump-table.3");
}
TEST(MachineOperandTest, PrintExternalSymbol) {
// Create a MachineOperand with an external symbol and print it.
MachineOperand MO = MachineOperand::CreateES("foo");
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isSymbol());
ASSERT_TRUE(MO.getSymbolName() == StringRef("foo"));
// Print a MachineOperand containing an external symbol and no offset.
std::string str;
{
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "&foo");
}
str.clear();
MO.setOffset(12);
// Print a MachineOperand containing an external symbol and a positive offset.
{
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "&foo + 12");
}
str.clear();
MO.setOffset(-12);
// Print a MachineOperand containing an external symbol and a negative offset.
{
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "&foo - 12");
}
}
TEST(MachineOperandTest, PrintGlobalAddress) {
LLVMContext Ctx;
Module M("MachineOperandGVTest", Ctx);
M.getOrInsertGlobal("foo", Type::getInt32Ty(Ctx));
GlobalValue *GV = M.getNamedValue("foo");
// Create a MachineOperand with a global address and a positive offset and
// print it.
MachineOperand MO = MachineOperand::CreateGA(GV, 12);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isGlobal());
ASSERT_TRUE(MO.getGlobal() == GV);
ASSERT_TRUE(MO.getOffset() == 12);
std::string str;
// Print a MachineOperand containing a global address and a positive offset.
{
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "@foo + 12");
}
str.clear();
MO.setOffset(-12);
// Print a MachineOperand containing a global address and a negative offset.
{
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "@foo - 12");
}
}
TEST(MachineOperandTest, PrintRegisterLiveOut) {
// Create a MachineOperand with a register live out list and print it.
uint32_t Mask = 0;
MachineOperand MO = MachineOperand::CreateRegLiveOut(&Mask);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isRegLiveOut());
ASSERT_TRUE(MO.getRegLiveOut() == &Mask);
std::string str;
// Print a MachineOperand containing a register live out list without a TRI.
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "liveout(<unknown>)");
}
TEST(MachineOperandTest, PrintMetadata) {
LLVMContext Ctx;
Module M("MachineOperandMDNodeTest", Ctx);
NamedMDNode *MD = M.getOrInsertNamedMetadata("namedmd");
ModuleSlotTracker MST(&M);
Metadata *MDS = MDString::get(Ctx, "foo");
MDNode *Node = MDNode::get(Ctx, MDS);
MD->addOperand(Node);
// Create a MachineOperand with a metadata and print it.
MachineOperand MO = MachineOperand::CreateMetadata(Node);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isMetadata());
ASSERT_TRUE(MO.getMetadata() == Node);
std::string str;
// Print a MachineOperand containing a metadata node.
raw_string_ostream OS(str);
MO.print(OS, MST, LLT{}, /*OpIdx*/~0U, /*PrintDef=*/false, /*IsStandalone=*/false,
/*ShouldPrintRegisterTies=*/false, 0, /*TRI=*/nullptr,
/*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "!0");
}
TEST(MachineOperandTest, PrintMCSymbol) {
MCAsmInfo MAI;
Triple T = Triple("unknown-unknown-unknown");
MCContext Ctx(T, &MAI, /*MRI=*/nullptr, /*MOFI=*/nullptr, /*MSTI=*/nullptr);
MCSymbol *Sym = Ctx.getOrCreateSymbol("foo");
// Create a MachineOperand with a metadata and print it.
MachineOperand MO = MachineOperand::CreateMCSymbol(Sym);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isMCSymbol());
ASSERT_TRUE(MO.getMCSymbol() == Sym);
std::string str;
// Print a MachineOperand containing a metadata node.
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "<mcsymbol foo>");
}
TEST(MachineOperandTest, PrintCFI) {
// Create a MachineOperand with a CFI index but no function and print it.
MachineOperand MO = MachineOperand::CreateCFIIndex(8);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isCFIIndex());
ASSERT_TRUE(MO.getCFIIndex() == 8);
std::string str;
// Print a MachineOperand containing a CFI Index node but no machine function
// attached to it.
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "<cfi directive>");
}
TEST(MachineOperandTest, PrintIntrinsicID) {
// Create a MachineOperand with a generic intrinsic ID.
MachineOperand MO = MachineOperand::CreateIntrinsicID(Intrinsic::bswap);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isIntrinsicID());
ASSERT_TRUE(MO.getIntrinsicID() == Intrinsic::bswap);
std::string str;
{
// Print a MachineOperand containing a generic intrinsic ID.
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "intrinsic(@llvm.bswap)");
}
str.clear();
// Set a target-specific intrinsic.
MO = MachineOperand::CreateIntrinsicID((Intrinsic::ID)-1);
{
// Print a MachineOperand containing a target-specific intrinsic ID but not
// IntrinsicInfo.
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "intrinsic(4294967295)");
}
}
TEST(MachineOperandTest, PrintPredicate) {
// Create a MachineOperand with a generic intrinsic ID.
MachineOperand MO = MachineOperand::CreatePredicate(CmpInst::ICMP_EQ);
// Checking some preconditions on the newly created
// MachineOperand.
ASSERT_TRUE(MO.isPredicate());
ASSERT_TRUE(MO.getPredicate() == CmpInst::ICMP_EQ);
std::string str;
// Print a MachineOperand containing a int predicate ICMP_EQ.
raw_string_ostream OS(str);
MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
ASSERT_TRUE(OS.str() == "intpred(eq)");
}
TEST(MachineOperandTest, HashValue) {
char SymName1[] = "test";
char SymName2[] = "test";
MachineOperand MO1 = MachineOperand::CreateES(SymName1);
MachineOperand MO2 = MachineOperand::CreateES(SymName2);
ASSERT_NE(SymName1, SymName2);
ASSERT_EQ(hash_value(MO1), hash_value(MO2));
ASSERT_TRUE(MO1.isIdenticalTo(MO2));
}
} // end namespace
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