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Diffstat (limited to 'chapter-sccp/src/test/java/com/seaofnodes/simple/Chapter06Test.java')
| -rw-r--r-- | chapter-sccp/src/test/java/com/seaofnodes/simple/Chapter06Test.java | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/chapter-sccp/src/test/java/com/seaofnodes/simple/Chapter06Test.java b/chapter-sccp/src/test/java/com/seaofnodes/simple/Chapter06Test.java new file mode 100644 index 00000000..53fcefed --- /dev/null +++ b/chapter-sccp/src/test/java/com/seaofnodes/simple/Chapter06Test.java @@ -0,0 +1,305 @@ +package com.seaofnodes.simple; + +import com.seaofnodes.simple.codegen.CodeGen; +import com.seaofnodes.simple.node.*; +import com.seaofnodes.simple.type.TypeInteger; +import org.junit.Test; + +import static org.junit.Assert.*; + +public class Chapter06Test { + + @Test + public void testPeepholeReturn() { + CodeGen code = new CodeGen(""" +if( true ) return 2; +return 1; +"""); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 2;", code.print()); + assertTrue(code.ctrl() instanceof FunNode); + } + + @Test + public void testPeepholeRotate() { + CodeGen code = new CodeGen( +""" +int a = 1; +if (arg) + a = 2; +return (arg < a) < 3; // Because (arg < a) is a bool/uint1/[0-1], its always less than 3 +"""); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 1;", code.print()); + } + + @Test + public void testPeepholeCFG() { + CodeGen code = new CodeGen( +""" +int a=1; +if( true ) + a=2; +else + a=3; +return a; +"""); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 2;", code.print()); + assertTrue(code.ctrl() instanceof FunNode); + } + + @Test + public void testIfIf() { + CodeGen code = new CodeGen( +""" +int a=1; +if( arg!=1 ) + a=2; +else + a=3; +int b=4; +if( a==2 ) + b=42; +else + b=5; +return b; +"""); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return Phi(Region,42,5);", code.print()); + } + + @Test + public void testIfArgIf() { + CodeGen code = new CodeGen( +""" +int a=1; +if( 1==1 ) + a=2; +else + a=3; +int b=4; +if( arg==2 ) + b=a; +else + b=5; +return b;"""); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return Phi(Region,2,5);", code.print()); + } + + @Test + public void testMerge3With2() { + CodeGen code = new CodeGen( +""" +arg=2; +int a=1; +if( arg==1 ) + if( arg==2 ) + a=2; + else + a=3; +else if( arg==3 ) + a=4; +else + a=5; +return a; +""", TypeInteger.constant(2), 123L, true).driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 5;", code.print()); + } + + @Test + public void testMerge3With1() { + CodeGen code = new CodeGen( +""" +arg=1; +int a=1; +if( arg==1 ) + if( arg==2 ) + a=2; + else + a=3; +else if( arg==3 ) + a=4; +else + a=5; +return a; +""", TypeInteger.constant(1), 123L, true).driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 3;", code.print()); + } + + @Test + public void testMerge3Peephole() { + CodeGen code = new CodeGen( +""" +int a=1; +if( arg==1 ) + if( 1==2 ) + a=2; + else + a=3; +else if( arg==3 ) + a=4; +else + a=5; +return a; +"""); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return Phi(Region,3,5,4);", code.print()); + } + + @Test + public void testMerge3Peephole1() { + CodeGen code = new CodeGen( +""" +arg=1; +int a=1; +if( arg==1 ) + if( 1==2 ) + a=2; + else + a=3; +else if( arg==3 ) + a=4; +else + a=5; +return a; +""", TypeInteger.constant(1), 123L, true); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 3;", code.print()); + } + + @Test + public void testMerge3Peephole3() { + CodeGen code = new CodeGen( +""" +arg=3; +int a=1; +if( arg==1 ) + if( 1==2 ) + a=2; + else + a=3; +else if( arg==3 ) + a=4; +else + a=5; +return a; +""", TypeInteger.constant(3), 123L, true); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 4;", code.print()); + } + + @Test + public void testDemo1NonConst() { + CodeGen code = new CodeGen(""" +int a = 0; +int b = 1; +if( arg ) { + a = 2; + if( arg ) { b = 2; } + else b = 3; +} +return a+b; +"""); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return Phi(Region,4,1);", code.print()); + } + + + @Test + public void testDemo1True() { + CodeGen code = new CodeGen( +""" +arg=1; +int a = 0; +int b = 1; +if( arg ) { + a = 2; + if( arg ) { b = 2; } + else b = 3; +} +return a+b; +""", TypeInteger.constant(1), 123L, true); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 4;", code.print()); + } + + @Test + public void testDemo1False() { + CodeGen code = new CodeGen( +""" +arg=0; +int a = 0; +int b = 1; +if( arg ) { + a = 2; + if( arg ) { b = 2; } + else b = 3; +} +return a+b; +""", TypeInteger.constant(0), 123L, true); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 1;", code.print()); + } + + @Test + public void testDemo2NonConst() { + CodeGen code = new CodeGen(""" +int a = 0; +int b = 1; +int c = 0; +if( arg ) { + a = 1; + if( arg==2 ) { c=2; } else { c=3; } + if( arg ) { b = 2; } + else b = 3; +} +return a+b+c; +"""); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return Phi(Region,6,1,5);", code.print()); + } + + + @Test + public void testDemo2True() { + CodeGen code = new CodeGen( +""" +arg=1; +int a = 0; +int b = 1; +int c = 0; +if( arg ) { + a = 1; + if( arg==2 ) { c=2; } else { c=3; } + if( arg ) { b = 2; } + else b = 3; +} +return a+b+c; +""", TypeInteger.constant(1), 123L, true); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 6;", code.print()); + } + + @Test + public void testDemo2arg2() { + CodeGen code = new CodeGen( +""" +arg=2; +int a = 0; +int b = 1; +int c = 0; +if( arg ) { + a = 1; + if( arg==2 ) { c=2; } else { c=3; } + if( arg ) { b = 2; } + else b = 3; +} +return a+b+c; +""", TypeInteger.constant(2), 123L, true); + code.driver(CodeGen.Phase.FinalizeIR); + assertEquals("return 5;", code.print()); + } + +} |