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//===-------- llvm/unittest/CodeGen/ScalableVectorMVTsTest.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/ValueTypes.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/Support/MachineValueType.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(ScalableVectorMVTsTest, IntegerMVTs) {
for (auto VecTy : MVT::integer_scalable_vector_valuetypes()) {
ASSERT_TRUE(VecTy.isValid());
ASSERT_TRUE(VecTy.isInteger());
ASSERT_TRUE(VecTy.isVector());
ASSERT_TRUE(VecTy.isScalableVector());
ASSERT_TRUE(VecTy.getScalarType().isValid());
ASSERT_FALSE(VecTy.isFloatingPoint());
}
}
TEST(ScalableVectorMVTsTest, FloatMVTs) {
for (auto VecTy : MVT::fp_scalable_vector_valuetypes()) {
ASSERT_TRUE(VecTy.isValid());
ASSERT_TRUE(VecTy.isFloatingPoint());
ASSERT_TRUE(VecTy.isVector());
ASSERT_TRUE(VecTy.isScalableVector());
ASSERT_TRUE(VecTy.getScalarType().isValid());
ASSERT_FALSE(VecTy.isInteger());
}
}
TEST(ScalableVectorMVTsTest, HelperFuncs) {
LLVMContext Ctx;
// Create with scalable flag
EVT Vnx4i32 = EVT::getVectorVT(Ctx, MVT::i32, 4, /*Scalable=*/true);
ASSERT_TRUE(Vnx4i32.isScalableVector());
// Create with separate MVT::ElementCount
auto EltCnt = MVT::ElementCount(2, true);
EVT Vnx2i32 = EVT::getVectorVT(Ctx, MVT::i32, EltCnt);
ASSERT_TRUE(Vnx2i32.isScalableVector());
// Create with inline MVT::ElementCount
EVT Vnx2i64 = EVT::getVectorVT(Ctx, MVT::i64, {2, true});
ASSERT_TRUE(Vnx2i64.isScalableVector());
// Check that changing scalar types/element count works
EXPECT_EQ(Vnx2i32.widenIntegerVectorElementType(Ctx), Vnx2i64);
EXPECT_EQ(Vnx4i32.getHalfNumVectorElementsVT(Ctx), Vnx2i32);
// Check that overloaded '*' and '/' operators work
EXPECT_EQ(EVT::getVectorVT(Ctx, MVT::i64, EltCnt * 2), MVT::nxv4i64);
EXPECT_EQ(EVT::getVectorVT(Ctx, MVT::i64, EltCnt / 2), MVT::nxv1i64);
// Check that float->int conversion works
EVT Vnx2f64 = EVT::getVectorVT(Ctx, MVT::f64, {2, true});
EXPECT_EQ(Vnx2f64.changeTypeToInteger(), Vnx2i64);
// Check fields inside MVT::ElementCount
EltCnt = Vnx4i32.getVectorElementCount();
EXPECT_EQ(EltCnt.Min, 4U);
ASSERT_TRUE(EltCnt.Scalable);
// Check that fixed-length vector types aren't scalable.
EVT V8i32 = EVT::getVectorVT(Ctx, MVT::i32, 8);
ASSERT_FALSE(V8i32.isScalableVector());
EVT V4f64 = EVT::getVectorVT(Ctx, MVT::f64, {4, false});
ASSERT_FALSE(V4f64.isScalableVector());
// Check that MVT::ElementCount works for fixed-length types.
EltCnt = V8i32.getVectorElementCount();
EXPECT_EQ(EltCnt.Min, 8U);
ASSERT_FALSE(EltCnt.Scalable);
}
}
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