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package com.seaofnodes.simple;
import com.seaofnodes.isa.eval.EvalRisc5;
import com.seaofnodes.isa.eval.EvalArm64;
import com.seaofnodes.simple.codegen.RegAllocTestSupport.CheckedCodeGen;
import com.seaofnodes.simple.node.*;
import com.seaofnodes.simple.type.*;
import com.seaofnodes.simple.codegen.CodeGen;
import com.seaofnodes.simple.node.cpus.riscv.riscv;
import java.io.IOException;
import org.junit.Test;
import static org.junit.Assert.*;
public class Chapter24Test {
@Test public void testColdLoopSelfConflict() { com.seaofnodes.simple.codegen.RegAllocTestSupport.coldLoopSelfConflict(); }
@Test public void testPrintingDeadFunction() throws Exception {
var code = new CodeGen("return 0;").parse();
var tfp = TypeFunPtr.TEST;
var fun = new FunNode(null,tfp,"deadPrinterTarget",null);
org.junit.Assert.assertTrue(fun.isDead());
code.link(fun);
var con = ConstantNode.raw(tfp);
var call = new CallNode(null,con,con,con);
con.toString();
call.name();
code.funcName(tfp.fidx());
org.junit.Assert.assertSame(fun,code._link(tfp));
// Optimizer lookup still performs its usual lazy cleanup.
org.junit.Assert.assertNull(code.link(tfp));
org.junit.Assert.assertNull(code._link(tfp));
}
@Test
public void testJig() throws IOException {
String src = "int v0=0; v0 = arg && 0== 0 !=0;";
testCPU(src,"x86_64_v2", "win64" ,-1,null);
testCPU(src,"riscv" , "SystemV",-1,null);
testCPU(src,"arm" , "SystemV",-1,null);
}
static CodeGen testCPU( String src, String cpu, String os, int spills, String stop ) {
CodeGen code = new CheckedCodeGen(src).driver(CodeGen.Phase.Encoding,cpu,os);
int delta = spills>>3;
if( delta==0 ) delta = 1;
if( spills != -1 && !CodeGen.iterSeedOverridden() )
assertEquals("Expect spills:",spills,code._regAlloc._spillScaled,delta);
if( stop != null )
assertEquals(stop, code.print());
return code;
}
// test it with function calls
@Test
public void testStack1() throws IOException {
String src ="""
int something_specific = 11;
return (10 < something_specific < 20)
? 0 // Expected
: 1; // Error
""";
TestC.runSF( src, "stacked_r_1", "", 0);
// Evaluate on RISC5 emulator
EvalRisc5 R5 = TestRisc5.build( src, "stacked_r_1", 0, 0, false);
int trap = R5.step(100);
assertEquals(0,trap);
assertEquals(0,R5.regs[riscv.A0]);
// Evaluate on ARM emulator
EvalArm64 arm = TestArm64.build("stacked_r_1", src, 0, 0, false);
trap = arm.step(100);
assertEquals(0,trap);
assertEquals(0,arm.regs[0]);
}
@Test
public void testStack3() throws IOException {
String src ="""
var sq_noInline = { int x ->
x*x;
};
int score = 4;
return (sq_noInline(2) <= score < sq_noInline(3))
? 0 // Expected
: 1; // Error
""";
TestC.runSF( src, "stacked_r_3", "", 2);
// Evaluate on RISC5 emulator
EvalRisc5 R5 = TestRisc5.build( src, "stacked_r_3", 0, 2, false);
int trap = R5.step(100);
assertEquals(0,trap);
assertEquals(0,R5.regs[riscv.A0]);
// Evaluate on ARM emulator
EvalArm64 arm = TestArm64.build("stacked_r_3", src, 0, 3, false);
int trap_1 = arm.step(100);
assertEquals(0,trap_1);
assertEquals(0,arm.regs[0]);
}
@Test
public void testStack4() throws IOException {
String src ="""
int something_specific = 9;
return (10 < something_specific < 20)
? 1 // Error
: 0; // Expected
""";
TestC.runSF( src, "stacked_r_4", "", 0);
// Evaluate on RISC5 emulator
EvalRisc5 R5 = TestRisc5.build( src, "stacked_r_4", 0, 0, false);
int trap = R5.step(100);
assertEquals(0,trap);
assertEquals(0,R5.regs[riscv.A0]);
// Evaluate on ARM emulator
EvalArm64 arm = TestArm64.build("stacked_r_4", src, 0, 0, false);
trap = arm.step(100);
assertEquals(0,trap);
assertEquals(0,arm.regs[0]);
}
@Test
public void testStack6() {
try { new CodeGen("return 0 < arg > 1;" ).parse(); fail(); }
catch( RuntimeException e ) { assertEquals("Mixing relational directions in a chained relational test",e.getMessage()); }
}
@Test
public void testStack9() throws IOException {
String src = "var stack9 = { int x -> (x < 1) == 1; };";
String src2 = "return (0 < 1) == 1;";
TestC.runC(src, "stacked_r_9x", "1", 0);
// Evaluate on RISC5 emulator
EvalRisc5 R5 = TestRisc5.build( src2, "stacked_r_9", 0, 0, false);
int trap = R5.step(100);
assertEquals(0,trap);
assertEquals(1,R5.regs[riscv.A0]);
// Evaluate on ARM emulator
EvalArm64 arm = TestArm64.build("stacked_r_9", src2, 0, 0, false);
trap = arm.step(100);
assertEquals(0,trap);
assertEquals(1,arm.regs[0]);
}
@Test
public void testStack10() throws IOException {
String src ="var stack10 = { int x -> (x < 1) == (1>x);};";
String src2 ="return (0 < 1) == (1>0);";
TestC.runC(src, "stacked_r_10x", "1",0);
// Evaluate on RISC5 emulator
EvalRisc5 R5 = TestRisc5.build( src2, "stacked_r_10", 0, 0, false);
int trap = R5.step(100);
assertEquals(0,trap);
assertEquals(1,R5.regs[riscv.A0]);
// Evaluate on ARM emulator
EvalArm64 arm = TestArm64.build("stacked_r_10", src2,0, 0, false);
trap = arm.step(100);
assertEquals(0,trap);
assertEquals(1,arm.regs[0]);
}
@Test
public void testStack11() throws IOException {
String src = "var stack11 = { int x -> 0 < x < x+1 < 4;}; ";
String src2 = "return 0 < arg < arg+1 < 4;";
TestC.runC(src, "stacked_r_11x", "1", 2);
// Evaluate on RISC5 emulator
EvalRisc5 R5 = TestRisc5.build( src2, "stacked_r_11", 1, 0, false);
R5.regs[riscv.A1] = 1; // Arg in A1, Test.class in A0
int trap = R5.step(100);
assertEquals(0,trap);
assertEquals(1,R5.regs[riscv.A0]);
// Evaluate on ARM emulator
EvalArm64 arm = TestArm64.build("stacked_r_11", src2, 1, 0, false);
arm.regs[1] = 1; // Arg in r1, Test.class in r0
trap = arm.step(100);
assertEquals(0,trap);
assertEquals(1,arm.regs[0]);
}
// shows that it is parsed as
// ((0 != x) != 2)
@Test
public void testStack12() throws IOException {
String src = "var stack12 = { int x -> 0 != x != 2; };";
String src2 = "return 0 != arg != 2;";
TestC.runC(src, "stacked_r_12x", "1",0);
// Evaluate on RISC5 emulator
EvalRisc5 R5 = TestRisc5.build( src2, "stacked_r_12", 1, 0, false);
int trap = R5.step(100);
assertEquals(0,trap);
assertEquals(1,R5.regs[riscv.A0]);
// Evaluate on ARM emulator
EvalArm64 arm = TestArm64.build("stacked_r_12", src2, 1, 0, false);
trap = arm.step(100);
assertEquals(0,trap);
assertEquals(1,arm.regs[0]);
}
// shows that it is parsed as
// ((0 == x) == 1)
@Test
public void testStack13() throws IOException {
String src = "var stack13 = { int x -> 0 == x == 1; };";
String src2 = "return 0 == arg == 1;";
TestC.runC(src, "stacked_r_13x", "1",0);
// Evaluate on RISC5 emulator
EvalRisc5 R5 = TestRisc5.build( src2, "stacked_r_13", 1, 0, false);
R5.regs[riscv.A1] = 1; // Arg in A1, Test.class in A0
int trap = R5.step(100);
assertEquals(0,trap);
assertEquals(1,R5.regs[riscv.A0]);
// Evaluate on ARM emulator
EvalArm64 arm = TestArm64.build("stacked_r_13", src2, 1, 0, false);
arm.regs[1] = 1; // Arg in r1, Test.class in r0
trap = arm.step(100);
assertEquals(0,trap);
assertEquals(1,arm.regs[0]);
}
@Test
public void testSCCP0() {
String src =
"""
int x = 1;
int cnt = 5;
while (cnt) {
cnt -= 1;
if (x == 0) {
x += 1;
}
}
return x;
""";
CodeGen code = new CodeGen(src).parse().opto().typeCheck();
assertEquals("return 1;", code.print());
}
@Test
public void testSCCP1() {
String src =
"""
int x = 1;
int cnt = 5;
while( cnt-- )
if( x == 1 )
x = 2-x;
return x;
""";
CodeGen code = new CodeGen(src).parse().opto().typeCheck();
assertEquals("return 1;", code.print());
}
}
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