1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
//===- llvm/unittest/CodeGen/AllocationOrderTest.cpp - AllocationOrder tests =//
//
// 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 "../lib/CodeGen/AllocationOrder.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
std::vector<MCPhysReg> loadOrder(const AllocationOrder &O, unsigned Limit = 0) {
std::vector<MCPhysReg> Ret;
if (Limit == 0)
for (auto R : O)
Ret.push_back(R);
else
for (auto I = O.begin(), E = O.getOrderLimitEnd(Limit); I != E; ++I)
Ret.push_back(*I);
return Ret;
}
} // namespace
TEST(AllocationOrderTest, Basic) {
SmallVector<MCPhysReg, 16> Hints = {1, 2, 3};
SmallVector<MCPhysReg, 16> Order = {4, 5, 6, 7};
AllocationOrder O(std::move(Hints), Order, false);
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4, 5, 6, 7}), loadOrder(O));
}
TEST(AllocationOrderTest, Duplicates) {
SmallVector<MCPhysReg, 16> Hints = {1, 2, 3};
SmallVector<MCPhysReg, 16> Order = {4, 1, 5, 6};
AllocationOrder O(std::move(Hints), Order, false);
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4, 5, 6}), loadOrder(O));
}
TEST(AllocationOrderTest, HardHints) {
SmallVector<MCPhysReg, 16> Hints = {1, 2, 3};
SmallVector<MCPhysReg, 16> Order = {4, 5, 6, 7};
AllocationOrder O(std::move(Hints), Order, true);
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3}), loadOrder(O));
}
TEST(AllocationOrderTest, LimitsBasic) {
SmallVector<MCPhysReg, 16> Hints = {1, 2, 3};
SmallVector<MCPhysReg, 16> Order = {4, 5, 6, 7};
AllocationOrder O(std::move(Hints), Order, false);
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4, 5, 6, 7}), loadOrder(O, 0));
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4}), loadOrder(O, 1));
EXPECT_EQ(O.end(), O.getOrderLimitEnd(0));
}
TEST(AllocationOrderTest, LimitsDuplicates) {
SmallVector<MCPhysReg, 16> Hints = {1, 2, 3};
SmallVector<MCPhysReg, 16> Order = {4, 1, 5, 6};
AllocationOrder O(std::move(Hints), Order, false);
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4}), loadOrder(O, 1));
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4}), loadOrder(O, 2));
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4, 5}), loadOrder(O, 3));
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4, 5, 6}), loadOrder(O, 4));
}
TEST(AllocationOrderTest, LimitsHardHints) {
SmallVector<MCPhysReg, 16> Hints = {1, 2, 3};
SmallVector<MCPhysReg, 16> Order = {4, 1, 5, 6};
AllocationOrder O(std::move(Hints), Order, true);
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3}), loadOrder(O, 1));
}
TEST(AllocationOrderTest, DuplicateIsFirst) {
SmallVector<MCPhysReg, 16> Hints = {1, 2, 3};
SmallVector<MCPhysReg, 16> Order = {1, 4, 5, 6};
AllocationOrder O(std::move(Hints), Order, false);
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4, 5, 6}), loadOrder(O));
}
TEST(AllocationOrderTest, DuplicateIsFirstWithLimits) {
SmallVector<MCPhysReg, 16> Hints = {1, 2, 3};
SmallVector<MCPhysReg, 16> Order = {1, 4, 5, 6};
AllocationOrder O(std::move(Hints), Order, false);
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3}), loadOrder(O, 1));
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4}), loadOrder(O, 2));
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4, 5}), loadOrder(O, 3));
}
TEST(AllocationOrderTest, NoHints) {
SmallVector<MCPhysReg, 16> Hints;
SmallVector<MCPhysReg, 16> Order = {1, 2, 3, 4};
AllocationOrder O(std::move(Hints), Order, false);
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3, 4}), loadOrder(O));
EXPECT_EQ((std::vector<MCPhysReg>{1, 2}), loadOrder(O, 2));
EXPECT_EQ((std::vector<MCPhysReg>{1, 2, 3}), loadOrder(O, 3));
}
TEST(AllocationOrderTest, IsHintTest) {
SmallVector<MCPhysReg, 16> Hints = {1, 2, 3};
SmallVector<MCPhysReg, 16> Order = {4, 1, 5, 6};
AllocationOrder O(std::move(Hints), Order, false);
auto I = O.begin();
auto V = *I;
EXPECT_TRUE(I.isHint());
EXPECT_EQ(V, 1U);
++I;
EXPECT_TRUE(I.isHint());
++I;
EXPECT_TRUE(I.isHint());
V = *(++I);
EXPECT_FALSE(I.isHint());
EXPECT_EQ(V, 4U);
V = *(++I);
EXPECT_TRUE(O.isHint(1));
EXPECT_FALSE(I.isHint());
EXPECT_EQ(V, 5U);
}
|
