1 //===-------- llvm/unittest/CodeGen/ScalableVectorMVTsTest.cpp ------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "llvm/CodeGen/ValueTypes.h"
11 #include "llvm/IR/LLVMContext.h"
12 #include "llvm/Support/MachineValueType.h"
13 #include "gtest/gtest.h"
14
15 using namespace llvm;
16
17 namespace {
18
TEST(ScalableVectorMVTsTest,IntegerMVTs)19 TEST(ScalableVectorMVTsTest, IntegerMVTs) {
20 for (auto VecTy : MVT::integer_scalable_vector_valuetypes()) {
21 ASSERT_TRUE(VecTy.isValid());
22 ASSERT_TRUE(VecTy.isInteger());
23 ASSERT_TRUE(VecTy.isVector());
24 ASSERT_TRUE(VecTy.isScalableVector());
25 ASSERT_TRUE(VecTy.getScalarType().isValid());
26
27 ASSERT_FALSE(VecTy.isFloatingPoint());
28 }
29 }
30
TEST(ScalableVectorMVTsTest,FloatMVTs)31 TEST(ScalableVectorMVTsTest, FloatMVTs) {
32 for (auto VecTy : MVT::fp_scalable_vector_valuetypes()) {
33 ASSERT_TRUE(VecTy.isValid());
34 ASSERT_TRUE(VecTy.isFloatingPoint());
35 ASSERT_TRUE(VecTy.isVector());
36 ASSERT_TRUE(VecTy.isScalableVector());
37 ASSERT_TRUE(VecTy.getScalarType().isValid());
38
39 ASSERT_FALSE(VecTy.isInteger());
40 }
41 }
42
TEST(ScalableVectorMVTsTest,HelperFuncs)43 TEST(ScalableVectorMVTsTest, HelperFuncs) {
44 LLVMContext Ctx;
45
46 // Create with scalable flag
47 EVT Vnx4i32 = EVT::getVectorVT(Ctx, MVT::i32, 4, /*Scalable=*/true);
48 ASSERT_TRUE(Vnx4i32.isScalableVector());
49
50 // Create with separate MVT::ElementCount
51 auto EltCnt = MVT::ElementCount(2, true);
52 EVT Vnx2i32 = EVT::getVectorVT(Ctx, MVT::i32, EltCnt);
53 ASSERT_TRUE(Vnx2i32.isScalableVector());
54
55 // Create with inline MVT::ElementCount
56 EVT Vnx2i64 = EVT::getVectorVT(Ctx, MVT::i64, {2, true});
57 ASSERT_TRUE(Vnx2i64.isScalableVector());
58
59 // Check that changing scalar types/element count works
60 EXPECT_EQ(Vnx2i32.widenIntegerVectorElementType(Ctx), Vnx2i64);
61 EXPECT_EQ(Vnx4i32.getHalfNumVectorElementsVT(Ctx), Vnx2i32);
62
63 // Check that overloaded '*' and '/' operators work
64 EXPECT_EQ(EVT::getVectorVT(Ctx, MVT::i64, EltCnt * 2), MVT::nxv4i64);
65 EXPECT_EQ(EVT::getVectorVT(Ctx, MVT::i64, EltCnt / 2), MVT::nxv1i64);
66
67 // Check that float->int conversion works
68 EVT Vnx2f64 = EVT::getVectorVT(Ctx, MVT::f64, {2, true});
69 EXPECT_EQ(Vnx2f64.changeTypeToInteger(), Vnx2i64);
70
71 // Check fields inside MVT::ElementCount
72 EltCnt = Vnx4i32.getVectorElementCount();
73 EXPECT_EQ(EltCnt.Min, 4U);
74 ASSERT_TRUE(EltCnt.Scalable);
75
76 // Check that fixed-length vector types aren't scalable.
77 EVT V8i32 = EVT::getVectorVT(Ctx, MVT::i32, 8);
78 ASSERT_FALSE(V8i32.isScalableVector());
79 EVT V4f64 = EVT::getVectorVT(Ctx, MVT::f64, {4, false});
80 ASSERT_FALSE(V4f64.isScalableVector());
81
82 // Check that MVT::ElementCount works for fixed-length types.
83 EltCnt = V8i32.getVectorElementCount();
84 EXPECT_EQ(EltCnt.Min, 8U);
85 ASSERT_FALSE(EltCnt.Scalable);
86 }
87
88 }
89