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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
package com.seaofnodes.simple;
import com.seaofnodes.simple.codegen.CodeGen;
import com.seaofnodes.simple.print.ASMPrinter;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import org.junit.Assert;
import org.junit.Ignore;
import org.junit.Test;
import static org.junit.Assert.*;
public class Chapter20Test {
@Test
public void testJig() {
CodeGen code = new CodeGen("return 0;");
code.parse().opto().typeCheck();
assertEquals("return 0;", code._stop.toString());
assertEquals("0", Eval2.eval(code, 2));
}
static void testCPU( String src, String cpu, String os, int spills, String stop ) {
CodeGen code = new CodeGen(src);
code.driver(CodeGen.Phase.RegAlloc,cpu,os);
int delta = spills>>3;
if( delta==0 ) delta = 1;
if( spills != -1 )
assertEquals("Expect spills:",spills,code._regAlloc._spillScaled,delta);
if( stop != null )
assertEquals(stop, code._stop.toString());
}
private static void testAllCPUs( String src, int spills, String stop ) {
testCPU(src,"x86_64_v2", "SystemV",spills,stop);
testCPU(src,"riscv" , "SystemV",spills,stop);
testCPU(src,"arm" , "SystemV",spills,stop);
}
@Test public void testAlloc0() {
testCPU("return new u8[arg];","x86_64_v2", "SystemV",3,"return [u8];");
testCPU("return new u8[arg];","riscv" , "SystemV",5,"return [u8];");
testCPU("return new u8[arg];","arm" , "SystemV",5,"return [u8];");
}
@Test public void testBasic1() {
String src = "return arg | 2;";
testCPU(src,"x86_64_v2", "SystemV",1,"return (ori,mov(arg));");
testCPU(src,"riscv" , "SystemV",0,"return ( arg | #2 );");
testCPU(src,"arm" , "SystemV",0,"return (ori,arg);");
}
@Test
public void testNewtonInteger() {
String src =
"""
// Newtons approximation to the square root
val sqrt = { int x ->
int guess = x;
while( 1 ) {
int next = (x/guess + guess)/2;
if( next == guess ) return guess;
guess = next;
}
};
int cast_int = arg+2;
return sqrt(arg) + sqrt(cast_int);
""";
testCPU(src,"x86_64_v2", "Win64" ,55,null);
testCPU(src,"riscv" , "SystemV",19,null);
testCPU(src,"arm" , "SystemV",19,null);
}
@Test
public void testNewtonFloat() throws IOException {
String src = Files.readString(Path.of("src/test/java/com/seaofnodes/simple/progs/newtonFloat.smp"))
+ "flt farg = arg; return test_sqrt(farg) + test_sqrt(farg+2.0);";
testCPU(src,"x86_64_v2", "SystemV",39,null);
testCPU(src,"riscv" , "SystemV",17,null);
testCPU(src,"arm" , "SystemV",18,null);
}
@Test
public void testAlloc2() {
String src = "int[] !xs = new int[3]; xs[arg]=1; return xs[arg&1];";
testCPU(src,"x86_64_v2", "SystemV",-1,"return .[];");
testCPU(src,"riscv" , "SystemV", 6,"return .[];");
testCPU(src,"arm" , "SystemV", 6,"return .[];");
}
@Test
public void testArray1() throws IOException {
String src = Files.readString(Path.of("src/test/java/com/seaofnodes/simple/progs/array1.smp"));
testCPU(src,"x86_64_v2", "SystemV",-1,"return .[];");
testCPU(src,"riscv" , "SystemV", 8,"return (add,.[],(mul,.[],1000));");
testCPU(src,"arm" , "SystemV", 5,"return (add,.[],(mul,.[],1000));");
}
@Test
public void testString() throws IOException {
String src = Files.readString(Path.of("src/test/java/com/seaofnodes/simple/progs/stringHash.smp"));
testCPU(src,"x86_64_v2", "SystemV", 9,null);
testCPU(src,"riscv" , "SystemV", 5,null);
testCPU(src,"arm" , "SystemV", 3,null);
}
@Test
public void testCast() {
String src = "struct Bar { int x; }; var b = arg ? new Bar; return b ? b.x++ + b.x++ : -1;";
testCPU(src,"x86_64_v2", "SystemV",2,null);
testCPU(src,"riscv" , "SystemV",2,null);
testCPU(src,"arm" , "SystemV",2,null);
}
@Test
public void testFltArg() {
String src = "return {int i, flt f, int j->return i+f+j;};";
testAllCPUs(src,0,null);
}
@Test
public void testFlags1() {
String src = """
bool b1 = arg == 1;
bool b2 = arg == 2;
if (b2) if (b1) return 1;
if (b1) return 2;
return 0;
""";
testCPU(src,"x86_64_v2", "SystemV",0,"return Phi(Region,1,2,0);");
testCPU(src,"riscv" , "SystemV",0,"return Phi(Region,1,2,0);");
testCPU(src,"arm" , "SystemV",0,"return Phi(Region,1,2,0);");
}
@Test
public void testFlags2() {
String src = """
bool b1 = arg == 1;
while (arg > 0) {
arg--;
if (b1) arg--;
}
return arg;
""";
testCPU(src,"x86_64_v2", "SystemV",3,null);
testCPU(src,"riscv" , "SystemV",2,null);
testCPU(src,"arm" , "SystemV",2,null);
}
}
|
