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//===- llvm/unittest/CodeGen/GlobalISel/LowLevelTypeTest.cpp --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/LowLevelType.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Type.h"
#include "gtest/gtest.h"
using namespace llvm;
// Define a pretty printer to help debugging when things go wrong.
namespace llvm {
std::ostream &
operator<<(std::ostream &OS, const llvm::LLT Ty) {
std::string Repr;
raw_string_ostream SS{Repr};
Ty.print(SS);
OS << SS.str();
return OS;
}
}
namespace {
TEST(LowLevelTypeTest, Scalar) {
LLVMContext C;
DataLayout DL("");
for (unsigned S : {1U, 17U, 32U, 64U, 0xfffffU}) {
const LLT Ty = LLT::scalar(S);
const LLT HalfTy = (S % 2) == 0 ? Ty.halfScalarSize() : Ty;
const LLT DoubleTy = Ty.doubleScalarSize();
// Test kind.
for (const LLT TestTy : {Ty, HalfTy, DoubleTy}) {
ASSERT_TRUE(TestTy.isValid());
ASSERT_TRUE(TestTy.isScalar());
ASSERT_FALSE(TestTy.isPointer());
ASSERT_FALSE(TestTy.isVector());
}
// Test sizes.
EXPECT_EQ(S, Ty.getSizeInBits());
EXPECT_EQ(S, Ty.getScalarSizeInBits());
EXPECT_EQ(S*2, DoubleTy.getSizeInBits());
EXPECT_EQ(S*2, DoubleTy.getScalarSizeInBits());
if ((S % 2) == 0) {
EXPECT_EQ(S/2, HalfTy.getSizeInBits());
EXPECT_EQ(S/2, HalfTy.getScalarSizeInBits());
}
// Test equality operators.
EXPECT_TRUE(Ty == Ty);
EXPECT_FALSE(Ty != Ty);
EXPECT_NE(Ty, DoubleTy);
// Test Type->LLT conversion.
Type *IRTy = IntegerType::get(C, S);
EXPECT_EQ(Ty, getLLTForType(*IRTy, DL));
}
}
TEST(LowLevelTypeTest, Vector) {
LLVMContext C;
DataLayout DL("");
for (unsigned S : {1U, 17U, 32U, 64U, 0xfffU}) {
for (uint16_t Elts : {2U, 3U, 4U, 32U, 0xffU}) {
const LLT STy = LLT::scalar(S);
const LLT VTy = LLT::vector(Elts, S);
// Test the alternative vector().
{
const LLT VSTy = LLT::vector(Elts, STy);
EXPECT_EQ(VTy, VSTy);
}
// Test getElementType().
EXPECT_EQ(STy, VTy.getElementType());
const LLT HalfSzTy = ((S % 2) == 0) ? VTy.halfScalarSize() : VTy;
const LLT DoubleSzTy = VTy.doubleScalarSize();
// halfElements requires an even number of elements.
const LLT HalfEltIfEvenTy = ((Elts % 2) == 0) ? VTy.halfElements() : VTy;
const LLT DoubleEltTy = VTy.doubleElements();
// Test kind.
for (const LLT TestTy : {VTy, HalfSzTy, DoubleSzTy, DoubleEltTy}) {
ASSERT_TRUE(TestTy.isValid());
ASSERT_TRUE(TestTy.isVector());
ASSERT_FALSE(TestTy.isScalar());
ASSERT_FALSE(TestTy.isPointer());
}
// Test halving elements to a scalar.
{
ASSERT_TRUE(HalfEltIfEvenTy.isValid());
ASSERT_FALSE(HalfEltIfEvenTy.isPointer());
if (Elts > 2) {
ASSERT_TRUE(HalfEltIfEvenTy.isVector());
} else {
ASSERT_FALSE(HalfEltIfEvenTy.isVector());
EXPECT_EQ(STy, HalfEltIfEvenTy);
}
}
// Test sizes.
EXPECT_EQ(S * Elts, VTy.getSizeInBits());
EXPECT_EQ(S, VTy.getScalarSizeInBits());
EXPECT_EQ(Elts, VTy.getNumElements());
if ((S % 2) == 0) {
EXPECT_EQ((S / 2) * Elts, HalfSzTy.getSizeInBits());
EXPECT_EQ(S / 2, HalfSzTy.getScalarSizeInBits());
EXPECT_EQ(Elts, HalfSzTy.getNumElements());
}
EXPECT_EQ((S * 2) * Elts, DoubleSzTy.getSizeInBits());
EXPECT_EQ(S * 2, DoubleSzTy.getScalarSizeInBits());
EXPECT_EQ(Elts, DoubleSzTy.getNumElements());
if ((Elts % 2) == 0) {
EXPECT_EQ(S * (Elts / 2), HalfEltIfEvenTy.getSizeInBits());
EXPECT_EQ(S, HalfEltIfEvenTy.getScalarSizeInBits());
if (Elts > 2) {
EXPECT_EQ(Elts / 2, HalfEltIfEvenTy.getNumElements());
}
}
EXPECT_EQ(S * (Elts * 2), DoubleEltTy.getSizeInBits());
EXPECT_EQ(S, DoubleEltTy.getScalarSizeInBits());
EXPECT_EQ(Elts * 2, DoubleEltTy.getNumElements());
// Test equality operators.
EXPECT_TRUE(VTy == VTy);
EXPECT_FALSE(VTy != VTy);
// Test inequality operators on..
// ..different kind.
EXPECT_NE(VTy, STy);
// ..different #elts.
EXPECT_NE(VTy, DoubleEltTy);
// ..different scalar size.
EXPECT_NE(VTy, DoubleSzTy);
// Test Type->LLT conversion.
Type *IRSTy = IntegerType::get(C, S);
Type *IRTy = VectorType::get(IRSTy, Elts);
EXPECT_EQ(VTy, getLLTForType(*IRTy, DL));
}
}
}
TEST(LowLevelTypeTest, Pointer) {
LLVMContext C;
DataLayout DL("");
for (unsigned AS : {0U, 1U, 127U, 0xffffU}) {
const LLT Ty = LLT::pointer(AS, DL.getPointerSizeInBits(AS));
const LLT VTy = LLT::vector(4, Ty);
// Test kind.
ASSERT_TRUE(Ty.isValid());
ASSERT_TRUE(Ty.isPointer());
ASSERT_FALSE(Ty.isScalar());
ASSERT_FALSE(Ty.isVector());
ASSERT_TRUE(VTy.isValid());
ASSERT_TRUE(VTy.isVector());
ASSERT_TRUE(VTy.getElementType().isPointer());
// Test addressspace.
EXPECT_EQ(AS, Ty.getAddressSpace());
EXPECT_EQ(AS, VTy.getElementType().getAddressSpace());
// Test equality operators.
EXPECT_TRUE(Ty == Ty);
EXPECT_FALSE(Ty != Ty);
EXPECT_TRUE(VTy == VTy);
EXPECT_FALSE(VTy != VTy);
// Test Type->LLT conversion.
Type *IRTy = PointerType::get(IntegerType::get(C, 8), AS);
EXPECT_EQ(Ty, getLLTForType(*IRTy, DL));
Type *IRVTy =
VectorType::get(PointerType::get(IntegerType::get(C, 8), AS), 4);
EXPECT_EQ(VTy, getLLTForType(*IRVTy, DL));
}
}
TEST(LowLevelTypeTest, Invalid) {
const LLT Ty;
ASSERT_FALSE(Ty.isValid());
ASSERT_FALSE(Ty.isScalar());
ASSERT_FALSE(Ty.isPointer());
ASSERT_FALSE(Ty.isVector());
}
}
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