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https://gitlab.com/camelot/kickc.git
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Added upport for continue inside switch statement. Closes #170
This commit is contained in:
jespergravgaard
parent
55b7dfdf91
commit
65dffdbdea
@ -974,10 +974,13 @@ public class Pass0GenerateStatementSequence extends KickCBaseVisitor<Object> {
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@Override
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public Object visitStmtSwitch(KickCParser.StmtSwitchContext ctx) {
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Loop containingLoop = loopStack.peek();
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// Create a block scope - to keep all statements of the loop inside it
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BlockScope blockScope = getCurrentScope().addBlockScope();
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scopeStack.push(blockScope);
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loopStack.push(new Loop(blockScope));
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Loop switchLoop = new Loop(blockScope);
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switchLoop.setContinueLabel(containingLoop.getOrCreateContinueLabel());
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loopStack.push(switchLoop);
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List<Comment> comments = ensureUnusedComments(getCommentsSymbol(ctx));
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// TODO: Add comments to next stmt
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// Evaluate the switch-expression
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@ -1012,7 +1015,6 @@ public class Pass0GenerateStatementSequence extends KickCBaseVisitor<Object> {
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if(ctx.switchCases().stmtSeq() != null) {
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this.visit(ctx.switchCases().stmtSeq());
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}
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// TODO: Do something to handle continue!
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addLoopBreakLabel(loopStack.pop(), ctx);
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scopeStack.pop();
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return null;
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@ -71,6 +71,11 @@ public class TestPrograms {
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// compileAndCompare("loophead-problem");
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//}
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@Test
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public void testSwitch1() throws IOException, URISyntaxException {
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compileAndCompare("switch-1");
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}
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@Test
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public void testSwitch0() throws IOException, URISyntaxException {
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compileAndCompare("switch-0");
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@ -7,20 +7,20 @@ void main() {
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for(char i:0..5) {
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// Test switching on a simple char
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switch(i) {
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// A simple case with a break
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case 1:
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// A simple case with a break
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SCREEN[i] = '1';
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break;
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// A case with no body
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case 2:
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// A case with fall-through
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// A case with no body
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case 3:
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// A case with fall-through
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SCREEN[i] = '3';
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case 4:
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SCREEN[i] = '4';
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break;
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// No case for 0 & 5
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default:
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// No case for 0 & 5
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SCREEN[i] = 'd';
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}
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}
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22
src/test/kc/switch-1.kc
Normal file
22
src/test/kc/switch-1.kc
Normal file
@ -0,0 +1,22 @@
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// Tests simple switch()-statement - including a continue statement for the enclosing loop
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// Expected output 'a1aa1a' (numbers should be inverted)
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void main() {
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const char* SCREEN = 0x0400;
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for(char i:0..5) {
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// Test switching on a simple char
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switch(i) {
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case 1:
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case 4:
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SCREEN[i] = '1';
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break;
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default:
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// No case for 0 & 5
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SCREEN[i] = 'a';
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// Continue skips inverting the char
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continue;
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}
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// Invert the screen character
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SCREEN[i] |= 0x80;
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}
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}
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@ -7,6 +7,7 @@ main: {
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.label SCREEN = $400
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ldx #0
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b5:
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// No case for 0 & 5
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lda #'d'
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sta SCREEN,x
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b6:
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@ -15,13 +16,11 @@ main: {
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bne b1
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rts
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b1:
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// A simple case with a break
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cpx #1
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beq b2
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// A case with no body
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cpx #2
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beq b3
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// A case with fall-through
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// A case with no body
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cpx #3
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beq b3
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cpx #4
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@ -32,10 +31,12 @@ main: {
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sta SCREEN,x
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jmp b6
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b3:
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// A case with fall-through
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lda #'3'
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sta SCREEN,x
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jmp b4
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b2:
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// A simple case with a break
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lda #'1'
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sta SCREEN,x
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jmp b6
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@ -1,9 +1,10 @@
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Culled Empty Block (label) main::@3
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Culled Empty Block (label) main::@14
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Culled Empty Block (label) main::@15
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Culled Empty Block (label) main::@7
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Culled Empty Block (label) main::@8
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Culled Empty Block (label) main::@9
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Culled Empty Block (label) main::@10
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Culled Empty Block (label) main::@16
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CONTROL FLOW GRAPH SSA
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@begin: scope:[] from
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@ -12,14 +13,14 @@ main: scope:[main] from @1
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(byte*) main::SCREEN#0 ← ((byte*)) (number) $400
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(byte) main::i#0 ← (byte) 0
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to:main::@1
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main::@1: scope:[main] from main main::@7
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(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@7/(byte) main::i#1 )
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main::@1: scope:[main] from main main::@10
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(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@10/(byte) main::i#1 )
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if((byte) main::i#2==(number) 1) goto main::@2
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to:main::@11
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main::@2: scope:[main] from main::@1
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(byte) main::i#3 ← phi( main::@1/(byte) main::i#2 )
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*((byte*) main::SCREEN#0 + (byte) main::i#3) ← (byte) '1'
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to:main::@7
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to:main::@10
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main::@11: scope:[main] from main::@1
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(byte) main::i#4 ← phi( main::@1/(byte) main::i#2 )
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if((byte) main::i#4==(number) 2) goto main::@4
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@ -39,18 +40,18 @@ main::@13: scope:[main] from main::@12
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main::@5: scope:[main] from main::@13 main::@4
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(byte) main::i#8 ← phi( main::@13/(byte) main::i#7 main::@4/(byte) main::i#6 )
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*((byte*) main::SCREEN#0 + (byte) main::i#8) ← (byte) '4'
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to:main::@7
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to:main::@10
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main::@6: scope:[main] from main::@13
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(byte) main::i#9 ← phi( main::@13/(byte) main::i#7 )
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*((byte*) main::SCREEN#0 + (byte) main::i#9) ← (byte) 'd'
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to:main::@7
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main::@7: scope:[main] from main::@2 main::@5 main::@6
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to:main::@10
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main::@10: scope:[main] from main::@2 main::@5 main::@6
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(byte) main::i#10 ← phi( main::@2/(byte) main::i#3 main::@5/(byte) main::i#8 main::@6/(byte) main::i#9 )
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(byte) main::i#1 ← (byte) main::i#10 + rangenext(0,5)
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(bool~) main::$0 ← (byte) main::i#1 != rangelast(0,5)
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if((bool~) main::$0) goto main::@1
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to:main::@return
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main::@return: scope:[main] from main::@7
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main::@return: scope:[main] from main::@10
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return
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to:@return
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@1: scope:[] from @begin
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@ -68,6 +69,7 @@ SYMBOL TABLE SSA
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(void()) main()
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(bool~) main::$0
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(label) main::@1
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(label) main::@10
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(label) main::@11
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(label) main::@12
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(label) main::@13
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@ -75,7 +77,6 @@ SYMBOL TABLE SSA
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(label) main::@4
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(label) main::@5
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(label) main::@6
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(label) main::@7
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(label) main::@return
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(byte*) main::SCREEN
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(byte*) main::SCREEN#0
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@ -175,7 +176,7 @@ Successful SSA optimization Pass2AliasElimination
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Inlining constant with var siblings (const byte) main::i#0
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Constant inlined main::i#0 = (byte) 0
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Successful SSA optimization Pass2ConstantInlining
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Added new block during phi lifting main::@16(between main::@13 and main::@6)
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Added new block during phi lifting main::@17(between main::@13 and main::@6)
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Adding NOP phi() at start of @begin
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Adding NOP phi() at start of @1
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Adding NOP phi() at start of @2
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@ -199,11 +200,11 @@ Culled Empty Block (label) main::@1_1
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Culled Empty Block (label) main::@11_1
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Culled Empty Block (label) main::@12_1
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Culled Empty Block (label) main::@13_1
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Culled Empty Block (label) main::@16
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Culled Empty Block (label) main::@17
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Renumbering block main::@4 to main::@3
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Renumbering block main::@5 to main::@4
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Renumbering block main::@6 to main::@5
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Renumbering block main::@7 to main::@6
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Renumbering block main::@10 to main::@6
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Renumbering block main::@11 to main::@7
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Renumbering block main::@12 to main::@8
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Renumbering block main::@13 to main::@9
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@ -313,6 +314,7 @@ main: {
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// main::@5
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b5:
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// [6] *((const byte*) main::SCREEN#0 + (byte) main::i#29) ← (byte) 'd' -- pbuc1_derefidx_vbuz1=vbuc2
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// No case for 0 & 5
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lda #'d'
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ldy.z i
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sta SCREEN,y
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@ -338,7 +340,6 @@ main: {
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// main::@1
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b1:
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// [11] if((byte) main::i#1==(byte) 1) goto main::@2 -- vbuz1_eq_vbuc1_then_la1
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// A simple case with a break
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lda #1
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cmp.z i
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beq b2
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@ -346,7 +347,6 @@ main: {
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// main::@7
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b7:
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// [12] if((byte) main::i#1==(byte) 2) goto main::@3 -- vbuz1_eq_vbuc1_then_la1
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// A case with no body
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lda #2
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cmp.z i
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beq b3
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@ -354,7 +354,7 @@ main: {
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// main::@8
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b8:
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// [13] if((byte) main::i#1==(byte) 3) goto main::@3 -- vbuz1_eq_vbuc1_then_la1
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// A case with fall-through
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// A case with no body
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lda #3
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cmp.z i
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beq b3
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@ -379,6 +379,7 @@ main: {
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// main::@3
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b3:
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// [16] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '3' -- pbuc1_derefidx_vbuz1=vbuc2
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// A case with fall-through
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lda #'3'
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ldy.z i
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sta SCREEN,y
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@ -386,6 +387,7 @@ main: {
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// main::@2
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b2:
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// [17] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1' -- pbuc1_derefidx_vbuz1=vbuc2
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// A simple case with a break
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lda #'1'
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ldy.z i
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sta SCREEN,y
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@ -448,6 +450,7 @@ main: {
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// main::@5
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b5:
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// [6] *((const byte*) main::SCREEN#0 + (byte) main::i#29) ← (byte) 'd' -- pbuc1_derefidx_vbuxx=vbuc2
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// No case for 0 & 5
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lda #'d'
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sta SCREEN,x
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// [7] phi from main::@2 main::@4 main::@5 to main::@6 [phi:main::@2/main::@4/main::@5->main::@6]
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@ -471,21 +474,19 @@ main: {
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// main::@1
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b1:
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// [11] if((byte) main::i#1==(byte) 1) goto main::@2 -- vbuxx_eq_vbuc1_then_la1
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// A simple case with a break
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cpx #1
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beq b2
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jmp b7
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// main::@7
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b7:
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// [12] if((byte) main::i#1==(byte) 2) goto main::@3 -- vbuxx_eq_vbuc1_then_la1
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// A case with no body
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cpx #2
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beq b3
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jmp b8
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// main::@8
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b8:
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// [13] if((byte) main::i#1==(byte) 3) goto main::@3 -- vbuxx_eq_vbuc1_then_la1
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// A case with fall-through
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// A case with no body
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cpx #3
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beq b3
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jmp b9
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@ -507,12 +508,14 @@ main: {
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// main::@3
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b3:
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// [16] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '3' -- pbuc1_derefidx_vbuxx=vbuc2
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// A case with fall-through
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lda #'3'
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sta SCREEN,x
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jmp b4
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// main::@2
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b2:
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// [17] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1' -- pbuc1_derefidx_vbuxx=vbuc2
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// A simple case with a break
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lda #'1'
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sta SCREEN,x
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jmp b6_from_b2
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@ -606,6 +609,7 @@ main: {
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b5:
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// SCREEN[i] = 'd'
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// [6] *((const byte*) main::SCREEN#0 + (byte) main::i#29) ← (byte) 'd' -- pbuc1_derefidx_vbuxx=vbuc2
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// No case for 0 & 5
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lda #'d'
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sta SCREEN,x
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// [7] phi from main::@2 main::@4 main::@5 to main::@6 [phi:main::@2/main::@4/main::@5->main::@6]
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@ -625,23 +629,23 @@ main: {
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// main::@1
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b1:
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// case 1:
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// // A simple case with a break
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// SCREEN[i] = '1';
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// break;
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// [11] if((byte) main::i#1==(byte) 1) goto main::@2 -- vbuxx_eq_vbuc1_then_la1
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// A simple case with a break
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cpx #1
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beq b2
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// main::@7
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// case 2:
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// [12] if((byte) main::i#1==(byte) 2) goto main::@3 -- vbuxx_eq_vbuc1_then_la1
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// A case with no body
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cpx #2
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beq b3
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// main::@8
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// case 3:
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// // A case with fall-through
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// SCREEN[i] = '3';
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// [13] if((byte) main::i#1==(byte) 3) goto main::@3 -- vbuxx_eq_vbuc1_then_la1
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// A case with fall-through
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// A case with no body
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cpx #3
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beq b3
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// main::@9
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@ -665,6 +669,7 @@ main: {
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b3:
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// SCREEN[i] = '3'
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// [16] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '3' -- pbuc1_derefidx_vbuxx=vbuc2
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// A case with fall-through
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lda #'3'
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sta SCREEN,x
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jmp b4
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@ -672,6 +677,7 @@ main: {
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b2:
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// SCREEN[i] = '1'
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// [17] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1' -- pbuc1_derefidx_vbuxx=vbuc2
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// A simple case with a break
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lda #'1'
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sta SCREEN,x
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jmp b6
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32
src/test/ref/switch-1.asm
Normal file
32
src/test/ref/switch-1.asm
Normal file
@ -0,0 +1,32 @@
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// Tests simple switch()-statement - including a continue statement for the enclosing loop
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// Expected output 'a1aa1a' (numbers should be inverted)
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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main: {
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.label SCREEN = $400
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ldx #0
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b3:
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// No case for 0 & 5
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lda #'a'
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sta SCREEN,x
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b5:
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inx
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cpx #6
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bne b1
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rts
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b1:
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cpx #1
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beq b2
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cpx #4
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beq b2
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jmp b3
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b2:
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lda #'1'
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sta SCREEN,x
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// Invert the screen character
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lda #$80
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ora SCREEN,x
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sta SCREEN,x
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jmp b5
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}
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36
src/test/ref/switch-1.cfg
Normal file
36
src/test/ref/switch-1.cfg
Normal file
@ -0,0 +1,36 @@
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@begin: scope:[] from
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[0] phi()
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to:@1
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@1: scope:[] from @begin
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[1] phi()
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[2] call main
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to:@end
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@end: scope:[] from @1
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[3] phi()
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main: scope:[main] from @1
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[4] phi()
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to:main::@3
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main::@3: scope:[main] from main main::@6
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[5] (byte) main::i#14 ← phi( main::@6/(byte) main::i#1 main/(byte) 0 )
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[6] *((const byte*) main::SCREEN#0 + (byte) main::i#14) ← (byte) 'a'
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to:main::@5
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main::@5: scope:[main] from main::@3 main::@4
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[7] (byte) main::i#12 ← phi( main::@3/(byte) main::i#14 main::@4/(byte) main::i#1 )
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[8] (byte) main::i#1 ← ++ (byte) main::i#12
|
||||
[9] if((byte) main::i#1!=(byte) 6) goto main::@1
|
||||
to:main::@return
|
||||
main::@return: scope:[main] from main::@5
|
||||
[10] return
|
||||
to:@return
|
||||
main::@1: scope:[main] from main::@5
|
||||
[11] if((byte) main::i#1==(byte) 1) goto main::@2
|
||||
to:main::@6
|
||||
main::@6: scope:[main] from main::@1
|
||||
[12] if((byte) main::i#1==(byte) 4) goto main::@2
|
||||
to:main::@3
|
||||
main::@2: scope:[main] from main::@1 main::@6
|
||||
[13] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1'
|
||||
to:main::@4
|
||||
main::@4: scope:[main] from main::@2
|
||||
[14] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← *((const byte*) main::SCREEN#0 + (byte) main::i#1) | (byte) $80
|
||||
to:main::@5
|
||||
549
src/test/ref/switch-1.log
Normal file
549
src/test/ref/switch-1.log
Normal file
@ -0,0 +1,549 @@
|
||||
Culled Empty Block (label) main::@2
|
||||
Culled Empty Block (label) main::@10
|
||||
Culled Empty Block (label) main::@11
|
||||
Culled Empty Block (label) main::@6
|
||||
Culled Empty Block (label) main::@7
|
||||
Culled Empty Block (label) main::@12
|
||||
|
||||
CONTROL FLOW GRAPH SSA
|
||||
@begin: scope:[] from
|
||||
to:@1
|
||||
main: scope:[main] from @1
|
||||
(byte*) main::SCREEN#0 ← ((byte*)) (number) $400
|
||||
(byte) main::i#0 ← (byte) 0
|
||||
to:main::@1
|
||||
main::@1: scope:[main] from main main::@8
|
||||
(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@8/(byte) main::i#1 )
|
||||
if((byte) main::i#2==(number) 1) goto main::@3
|
||||
to:main::@9
|
||||
main::@9: scope:[main] from main::@1
|
||||
(byte) main::i#3 ← phi( main::@1/(byte) main::i#2 )
|
||||
if((byte) main::i#3==(number) 4) goto main::@3
|
||||
to:main::@4
|
||||
main::@3: scope:[main] from main::@1 main::@9
|
||||
(byte) main::i#4 ← phi( main::@1/(byte) main::i#2 main::@9/(byte) main::i#3 )
|
||||
*((byte*) main::SCREEN#0 + (byte) main::i#4) ← (byte) '1'
|
||||
to:main::@5
|
||||
main::@4: scope:[main] from main::@9
|
||||
(byte) main::i#5 ← phi( main::@9/(byte) main::i#3 )
|
||||
*((byte*) main::SCREEN#0 + (byte) main::i#5) ← (byte) 'a'
|
||||
to:main::@8
|
||||
main::@5: scope:[main] from main::@3
|
||||
(byte) main::i#6 ← phi( main::@3/(byte) main::i#4 )
|
||||
*((byte*) main::SCREEN#0 + (byte) main::i#6) ← *((byte*) main::SCREEN#0 + (byte) main::i#6) | (number) $80
|
||||
to:main::@8
|
||||
main::@8: scope:[main] from main::@4 main::@5
|
||||
(byte) main::i#7 ← phi( main::@4/(byte) main::i#5 main::@5/(byte) main::i#6 )
|
||||
(byte) main::i#1 ← (byte) main::i#7 + rangenext(0,5)
|
||||
(bool~) main::$0 ← (byte) main::i#1 != rangelast(0,5)
|
||||
if((bool~) main::$0) goto main::@1
|
||||
to:main::@return
|
||||
main::@return: scope:[main] from main::@8
|
||||
return
|
||||
to:@return
|
||||
@1: scope:[] from @begin
|
||||
call main
|
||||
to:@2
|
||||
@2: scope:[] from @1
|
||||
to:@end
|
||||
@end: scope:[] from @2
|
||||
|
||||
SYMBOL TABLE SSA
|
||||
(label) @1
|
||||
(label) @2
|
||||
(label) @begin
|
||||
(label) @end
|
||||
(void()) main()
|
||||
(bool~) main::$0
|
||||
(label) main::@1
|
||||
(label) main::@3
|
||||
(label) main::@4
|
||||
(label) main::@5
|
||||
(label) main::@8
|
||||
(label) main::@9
|
||||
(label) main::@return
|
||||
(byte*) main::SCREEN
|
||||
(byte*) main::SCREEN#0
|
||||
(byte) main::i
|
||||
(byte) main::i#0
|
||||
(byte) main::i#1
|
||||
(byte) main::i#2
|
||||
(byte) main::i#3
|
||||
(byte) main::i#4
|
||||
(byte) main::i#5
|
||||
(byte) main::i#6
|
||||
(byte) main::i#7
|
||||
|
||||
Adding number conversion cast (unumber) 1 in if((byte) main::i#2==(number) 1) goto main::@3
|
||||
Adding number conversion cast (unumber) 4 in if((byte) main::i#3==(number) 4) goto main::@3
|
||||
Adding number conversion cast (unumber) $80 in *((byte*) main::SCREEN#0 + (byte) main::i#6) ← *((byte*) main::SCREEN#0 + (byte) main::i#6) | (number) $80
|
||||
Successful SSA optimization PassNAddNumberTypeConversions
|
||||
Inlining cast (byte*) main::SCREEN#0 ← (byte*)(number) $400
|
||||
Successful SSA optimization Pass2InlineCast
|
||||
Simplifying constant pointer cast (byte*) 1024
|
||||
Simplifying constant integer cast 1
|
||||
Simplifying constant integer cast 4
|
||||
Simplifying constant integer cast $80
|
||||
Successful SSA optimization PassNCastSimplification
|
||||
Finalized unsigned number type (byte) 1
|
||||
Finalized unsigned number type (byte) 4
|
||||
Finalized unsigned number type (byte) $80
|
||||
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
||||
Alias (byte) main::i#2 = (byte) main::i#3 (byte) main::i#5
|
||||
Alias (byte) main::i#4 = (byte) main::i#6
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Alias (byte) main::i#2 = (byte) main::i#4
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Alias (byte) main::i#2 = (byte) main::i#7
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Simple Condition (bool~) main::$0 [15] if((byte) main::i#1!=rangelast(0,5)) goto main::@1
|
||||
Successful SSA optimization Pass2ConditionalJumpSimplification
|
||||
Constant (const byte*) main::SCREEN#0 = (byte*) 1024
|
||||
Constant (const byte) main::i#0 = 0
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Resolved ranged next value [13] main::i#1 ← ++ main::i#2 to ++
|
||||
Resolved ranged comparison value [15] if(main::i#1!=rangelast(0,5)) goto main::@1 to (number) 6
|
||||
Successful SSA optimization Pass2LoopHeadConstantIdentification
|
||||
Adding number conversion cast (unumber) 6 in if((byte) main::i#1!=(number) 6) goto main::@1
|
||||
Successful SSA optimization PassNAddNumberTypeConversions
|
||||
Simplifying constant integer cast 6
|
||||
Successful SSA optimization PassNCastSimplification
|
||||
Finalized unsigned number type (byte) 6
|
||||
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
||||
Alias (byte) main::i#1 = (byte) main::i#2
|
||||
Alias (byte) main::i#10 = (byte) main::i#8
|
||||
Alias (byte) main::i#11 = (byte) main::i#9
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Identical Phi Values (byte) main::i#13 (const byte) main::i#0
|
||||
Successful SSA optimization Pass2IdenticalPhiElimination
|
||||
Removing PHI-reference to removed block (main::@1_1) in block main::@3
|
||||
if() condition always false - eliminating [16] if((const byte) main::i#0==(byte) 1) goto main::@3
|
||||
Successful SSA optimization Pass2ConstantIfs
|
||||
Successful SSA optimization Pass2LoopHeadConstantIdentification
|
||||
Alias (byte) main::i#1 = (byte) main::i#10
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Identical Phi Values (byte) main::i#15 (const byte) main::i#0
|
||||
Successful SSA optimization Pass2IdenticalPhiElimination
|
||||
Removing PHI-reference to removed block (main::@9_1) in block main::@3
|
||||
if() condition always false - eliminating [14] if((const byte) main::i#0==(byte) 4) goto main::@3
|
||||
Successful SSA optimization Pass2ConstantIfs
|
||||
Alias (byte) main::i#1 = (byte) main::i#11
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Inlining constant with var siblings (const byte) main::i#0
|
||||
Constant inlined main::i#0 = (byte) 0
|
||||
Successful SSA optimization Pass2ConstantInlining
|
||||
Added new block during phi lifting main::@13(between main::@9 and main::@4)
|
||||
Adding NOP phi() at start of @begin
|
||||
Adding NOP phi() at start of @1
|
||||
Adding NOP phi() at start of @2
|
||||
Adding NOP phi() at start of @end
|
||||
Adding NOP phi() at start of main
|
||||
Adding NOP phi() at start of main::@1_1
|
||||
Adding NOP phi() at start of main::@9_1
|
||||
CALL GRAPH
|
||||
Calls in [] to main:2
|
||||
|
||||
Created 2 initial phi equivalence classes
|
||||
Coalesced [10] main::i#17 ← main::i#14
|
||||
Coalesced [17] main::i#16 ← main::i#1
|
||||
Coalesced (already) [20] main::i#18 ← main::i#1
|
||||
Coalesced down to 1 phi equivalence classes
|
||||
Culled Empty Block (label) @2
|
||||
Culled Empty Block (label) main::@1_1
|
||||
Culled Empty Block (label) main::@9_1
|
||||
Culled Empty Block (label) main::@13
|
||||
Renumbering block main::@3 to main::@2
|
||||
Renumbering block main::@4 to main::@3
|
||||
Renumbering block main::@5 to main::@4
|
||||
Renumbering block main::@8 to main::@5
|
||||
Renumbering block main::@9 to main::@6
|
||||
Adding NOP phi() at start of @begin
|
||||
Adding NOP phi() at start of @1
|
||||
Adding NOP phi() at start of @end
|
||||
Adding NOP phi() at start of main
|
||||
|
||||
FINAL CONTROL FLOW GRAPH
|
||||
@begin: scope:[] from
|
||||
[0] phi()
|
||||
to:@1
|
||||
@1: scope:[] from @begin
|
||||
[1] phi()
|
||||
[2] call main
|
||||
to:@end
|
||||
@end: scope:[] from @1
|
||||
[3] phi()
|
||||
main: scope:[main] from @1
|
||||
[4] phi()
|
||||
to:main::@3
|
||||
main::@3: scope:[main] from main main::@6
|
||||
[5] (byte) main::i#14 ← phi( main::@6/(byte) main::i#1 main/(byte) 0 )
|
||||
[6] *((const byte*) main::SCREEN#0 + (byte) main::i#14) ← (byte) 'a'
|
||||
to:main::@5
|
||||
main::@5: scope:[main] from main::@3 main::@4
|
||||
[7] (byte) main::i#12 ← phi( main::@3/(byte) main::i#14 main::@4/(byte) main::i#1 )
|
||||
[8] (byte) main::i#1 ← ++ (byte) main::i#12
|
||||
[9] if((byte) main::i#1!=(byte) 6) goto main::@1
|
||||
to:main::@return
|
||||
main::@return: scope:[main] from main::@5
|
||||
[10] return
|
||||
to:@return
|
||||
main::@1: scope:[main] from main::@5
|
||||
[11] if((byte) main::i#1==(byte) 1) goto main::@2
|
||||
to:main::@6
|
||||
main::@6: scope:[main] from main::@1
|
||||
[12] if((byte) main::i#1==(byte) 4) goto main::@2
|
||||
to:main::@3
|
||||
main::@2: scope:[main] from main::@1 main::@6
|
||||
[13] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1'
|
||||
to:main::@4
|
||||
main::@4: scope:[main] from main::@2
|
||||
[14] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← *((const byte*) main::SCREEN#0 + (byte) main::i#1) | (byte) $80
|
||||
to:main::@5
|
||||
|
||||
|
||||
VARIABLE REGISTER WEIGHTS
|
||||
(void()) main()
|
||||
(byte*) main::SCREEN
|
||||
(byte) main::i
|
||||
(byte) main::i#1 151.5
|
||||
(byte) main::i#12 213.0
|
||||
(byte) main::i#14 61.5
|
||||
|
||||
Initial phi equivalence classes
|
||||
[ main::i#12 main::i#14 main::i#1 ]
|
||||
Complete equivalence classes
|
||||
[ main::i#12 main::i#14 main::i#1 ]
|
||||
Allocated zp ZP_BYTE:2 [ main::i#12 main::i#14 main::i#1 ]
|
||||
|
||||
INITIAL ASM
|
||||
Target platform is c64basic
|
||||
// File Comments
|
||||
// Tests simple switch()-statement - including a continue statement for the enclosing loop
|
||||
// Expected output 'a1aa1a' (numbers should be inverted)
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(bbegin)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
// @begin
|
||||
bbegin:
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
b1_from_bbegin:
|
||||
jmp b1
|
||||
// @1
|
||||
b1:
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
main_from_b1:
|
||||
jsr main
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
bend_from_b1:
|
||||
jmp bend
|
||||
// @end
|
||||
bend:
|
||||
// main
|
||||
main: {
|
||||
.label SCREEN = $400
|
||||
.label i = 2
|
||||
// [5] phi from main to main::@3 [phi:main->main::@3]
|
||||
b3_from_main:
|
||||
// [5] phi (byte) main::i#14 = (byte) 0 [phi:main->main::@3#0] -- vbuz1=vbuc1
|
||||
lda #0
|
||||
sta.z i
|
||||
jmp b3
|
||||
// main::@3
|
||||
b3:
|
||||
// [6] *((const byte*) main::SCREEN#0 + (byte) main::i#14) ← (byte) 'a' -- pbuc1_derefidx_vbuz1=vbuc2
|
||||
// No case for 0 & 5
|
||||
lda #'a'
|
||||
ldy.z i
|
||||
sta SCREEN,y
|
||||
// [7] phi from main::@3 main::@4 to main::@5 [phi:main::@3/main::@4->main::@5]
|
||||
b5_from_b3:
|
||||
b5_from_b4:
|
||||
// [7] phi (byte) main::i#12 = (byte) main::i#14 [phi:main::@3/main::@4->main::@5#0] -- register_copy
|
||||
jmp b5
|
||||
// main::@5
|
||||
b5:
|
||||
// [8] (byte) main::i#1 ← ++ (byte) main::i#12 -- vbuz1=_inc_vbuz1
|
||||
inc.z i
|
||||
// [9] if((byte) main::i#1!=(byte) 6) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
|
||||
lda #6
|
||||
cmp.z i
|
||||
bne b1
|
||||
jmp breturn
|
||||
// main::@return
|
||||
breturn:
|
||||
// [10] return
|
||||
rts
|
||||
// main::@1
|
||||
b1:
|
||||
// [11] if((byte) main::i#1==(byte) 1) goto main::@2 -- vbuz1_eq_vbuc1_then_la1
|
||||
lda #1
|
||||
cmp.z i
|
||||
beq b2
|
||||
jmp b6
|
||||
// main::@6
|
||||
b6:
|
||||
// [12] if((byte) main::i#1==(byte) 4) goto main::@2 -- vbuz1_eq_vbuc1_then_la1
|
||||
lda #4
|
||||
cmp.z i
|
||||
beq b2
|
||||
// [5] phi from main::@6 to main::@3 [phi:main::@6->main::@3]
|
||||
b3_from_b6:
|
||||
// [5] phi (byte) main::i#14 = (byte) main::i#1 [phi:main::@6->main::@3#0] -- register_copy
|
||||
jmp b3
|
||||
// main::@2
|
||||
b2:
|
||||
// [13] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1' -- pbuc1_derefidx_vbuz1=vbuc2
|
||||
lda #'1'
|
||||
ldy.z i
|
||||
sta SCREEN,y
|
||||
jmp b4
|
||||
// main::@4
|
||||
b4:
|
||||
// [14] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← *((const byte*) main::SCREEN#0 + (byte) main::i#1) | (byte) $80 -- pbuc1_derefidx_vbuz1=pbuc1_derefidx_vbuz1_bor_vbuc2
|
||||
// Invert the screen character
|
||||
lda #$80
|
||||
ldy.z i
|
||||
ora SCREEN,y
|
||||
sta SCREEN,y
|
||||
jmp b5_from_b4
|
||||
}
|
||||
// File Data
|
||||
|
||||
REGISTER UPLIFT POTENTIAL REGISTERS
|
||||
Statement [6] *((const byte*) main::SCREEN#0 + (byte) main::i#14) ← (byte) 'a' [ main::i#14 ] ( main:2 [ main::i#14 ] ) always clobbers reg byte a
|
||||
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:2 [ main::i#12 main::i#14 main::i#1 ]
|
||||
Statement [13] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1' [ main::i#1 ] ( main:2 [ main::i#1 ] ) always clobbers reg byte a
|
||||
Statement [14] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← *((const byte*) main::SCREEN#0 + (byte) main::i#1) | (byte) $80 [ main::i#1 ] ( main:2 [ main::i#1 ] ) always clobbers reg byte a
|
||||
Statement [6] *((const byte*) main::SCREEN#0 + (byte) main::i#14) ← (byte) 'a' [ main::i#14 ] ( main:2 [ main::i#14 ] ) always clobbers reg byte a
|
||||
Statement [13] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1' [ main::i#1 ] ( main:2 [ main::i#1 ] ) always clobbers reg byte a
|
||||
Statement [14] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← *((const byte*) main::SCREEN#0 + (byte) main::i#1) | (byte) $80 [ main::i#1 ] ( main:2 [ main::i#1 ] ) always clobbers reg byte a
|
||||
Potential registers zp ZP_BYTE:2 [ main::i#12 main::i#14 main::i#1 ] : zp ZP_BYTE:2 , reg byte x , reg byte y ,
|
||||
|
||||
REGISTER UPLIFT SCOPES
|
||||
Uplift Scope [main] 426: zp ZP_BYTE:2 [ main::i#12 main::i#14 main::i#1 ]
|
||||
Uplift Scope []
|
||||
|
||||
Uplifting [main] best 5068 combination reg byte x [ main::i#12 main::i#14 main::i#1 ]
|
||||
Uplifting [] best 5068 combination
|
||||
|
||||
ASSEMBLER BEFORE OPTIMIZATION
|
||||
// File Comments
|
||||
// Tests simple switch()-statement - including a continue statement for the enclosing loop
|
||||
// Expected output 'a1aa1a' (numbers should be inverted)
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(bbegin)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
// @begin
|
||||
bbegin:
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
b1_from_bbegin:
|
||||
jmp b1
|
||||
// @1
|
||||
b1:
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
main_from_b1:
|
||||
jsr main
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
bend_from_b1:
|
||||
jmp bend
|
||||
// @end
|
||||
bend:
|
||||
// main
|
||||
main: {
|
||||
.label SCREEN = $400
|
||||
// [5] phi from main to main::@3 [phi:main->main::@3]
|
||||
b3_from_main:
|
||||
// [5] phi (byte) main::i#14 = (byte) 0 [phi:main->main::@3#0] -- vbuxx=vbuc1
|
||||
ldx #0
|
||||
jmp b3
|
||||
// main::@3
|
||||
b3:
|
||||
// [6] *((const byte*) main::SCREEN#0 + (byte) main::i#14) ← (byte) 'a' -- pbuc1_derefidx_vbuxx=vbuc2
|
||||
// No case for 0 & 5
|
||||
lda #'a'
|
||||
sta SCREEN,x
|
||||
// [7] phi from main::@3 main::@4 to main::@5 [phi:main::@3/main::@4->main::@5]
|
||||
b5_from_b3:
|
||||
b5_from_b4:
|
||||
// [7] phi (byte) main::i#12 = (byte) main::i#14 [phi:main::@3/main::@4->main::@5#0] -- register_copy
|
||||
jmp b5
|
||||
// main::@5
|
||||
b5:
|
||||
// [8] (byte) main::i#1 ← ++ (byte) main::i#12 -- vbuxx=_inc_vbuxx
|
||||
inx
|
||||
// [9] if((byte) main::i#1!=(byte) 6) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
|
||||
cpx #6
|
||||
bne b1
|
||||
jmp breturn
|
||||
// main::@return
|
||||
breturn:
|
||||
// [10] return
|
||||
rts
|
||||
// main::@1
|
||||
b1:
|
||||
// [11] if((byte) main::i#1==(byte) 1) goto main::@2 -- vbuxx_eq_vbuc1_then_la1
|
||||
cpx #1
|
||||
beq b2
|
||||
jmp b6
|
||||
// main::@6
|
||||
b6:
|
||||
// [12] if((byte) main::i#1==(byte) 4) goto main::@2 -- vbuxx_eq_vbuc1_then_la1
|
||||
cpx #4
|
||||
beq b2
|
||||
// [5] phi from main::@6 to main::@3 [phi:main::@6->main::@3]
|
||||
b3_from_b6:
|
||||
// [5] phi (byte) main::i#14 = (byte) main::i#1 [phi:main::@6->main::@3#0] -- register_copy
|
||||
jmp b3
|
||||
// main::@2
|
||||
b2:
|
||||
// [13] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1' -- pbuc1_derefidx_vbuxx=vbuc2
|
||||
lda #'1'
|
||||
sta SCREEN,x
|
||||
jmp b4
|
||||
// main::@4
|
||||
b4:
|
||||
// [14] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← *((const byte*) main::SCREEN#0 + (byte) main::i#1) | (byte) $80 -- pbuc1_derefidx_vbuxx=pbuc1_derefidx_vbuxx_bor_vbuc2
|
||||
// Invert the screen character
|
||||
lda #$80
|
||||
ora SCREEN,x
|
||||
sta SCREEN,x
|
||||
jmp b5_from_b4
|
||||
}
|
||||
// File Data
|
||||
|
||||
ASSEMBLER OPTIMIZATIONS
|
||||
Removing instruction jmp b1
|
||||
Removing instruction jmp bend
|
||||
Removing instruction jmp b3
|
||||
Removing instruction jmp b5
|
||||
Removing instruction jmp breturn
|
||||
Removing instruction jmp b6
|
||||
Removing instruction jmp b4
|
||||
Succesful ASM optimization Pass5NextJumpElimination
|
||||
Replacing label b5_from_b4 with b5
|
||||
Removing instruction b1_from_bbegin:
|
||||
Removing instruction b1:
|
||||
Removing instruction main_from_b1:
|
||||
Removing instruction bend_from_b1:
|
||||
Removing instruction b5_from_b3:
|
||||
Removing instruction b5_from_b4:
|
||||
Succesful ASM optimization Pass5RedundantLabelElimination
|
||||
Removing instruction bend:
|
||||
Removing instruction b3_from_main:
|
||||
Removing instruction breturn:
|
||||
Removing instruction b6:
|
||||
Removing instruction b3_from_b6:
|
||||
Removing instruction b4:
|
||||
Succesful ASM optimization Pass5UnusedLabelElimination
|
||||
Updating BasicUpstart to call main directly
|
||||
Removing instruction jsr main
|
||||
Succesful ASM optimization Pass5SkipBegin
|
||||
Removing instruction bbegin:
|
||||
Succesful ASM optimization Pass5UnusedLabelElimination
|
||||
|
||||
FINAL SYMBOL TABLE
|
||||
(label) @1
|
||||
(label) @begin
|
||||
(label) @end
|
||||
(void()) main()
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@3
|
||||
(label) main::@4
|
||||
(label) main::@5
|
||||
(label) main::@6
|
||||
(label) main::@return
|
||||
(byte*) main::SCREEN
|
||||
(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
|
||||
(byte) main::i
|
||||
(byte) main::i#1 reg byte x 151.5
|
||||
(byte) main::i#12 reg byte x 213.0
|
||||
(byte) main::i#14 reg byte x 61.5
|
||||
|
||||
reg byte x [ main::i#12 main::i#14 main::i#1 ]
|
||||
|
||||
|
||||
FINAL ASSEMBLER
|
||||
Score: 3826
|
||||
|
||||
// File Comments
|
||||
// Tests simple switch()-statement - including a continue statement for the enclosing loop
|
||||
// Expected output 'a1aa1a' (numbers should be inverted)
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(main)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
// @begin
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
// @1
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
// @end
|
||||
// main
|
||||
main: {
|
||||
.label SCREEN = $400
|
||||
// [5] phi from main to main::@3 [phi:main->main::@3]
|
||||
// [5] phi (byte) main::i#14 = (byte) 0 [phi:main->main::@3#0] -- vbuxx=vbuc1
|
||||
ldx #0
|
||||
// main::@3
|
||||
b3:
|
||||
// SCREEN[i] = 'a'
|
||||
// [6] *((const byte*) main::SCREEN#0 + (byte) main::i#14) ← (byte) 'a' -- pbuc1_derefidx_vbuxx=vbuc2
|
||||
// No case for 0 & 5
|
||||
lda #'a'
|
||||
sta SCREEN,x
|
||||
// [7] phi from main::@3 main::@4 to main::@5 [phi:main::@3/main::@4->main::@5]
|
||||
// [7] phi (byte) main::i#12 = (byte) main::i#14 [phi:main::@3/main::@4->main::@5#0] -- register_copy
|
||||
// main::@5
|
||||
b5:
|
||||
// for(char i:0..5)
|
||||
// [8] (byte) main::i#1 ← ++ (byte) main::i#12 -- vbuxx=_inc_vbuxx
|
||||
inx
|
||||
// [9] if((byte) main::i#1!=(byte) 6) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
|
||||
cpx #6
|
||||
bne b1
|
||||
// main::@return
|
||||
// }
|
||||
// [10] return
|
||||
rts
|
||||
// main::@1
|
||||
b1:
|
||||
// case 1:
|
||||
// [11] if((byte) main::i#1==(byte) 1) goto main::@2 -- vbuxx_eq_vbuc1_then_la1
|
||||
cpx #1
|
||||
beq b2
|
||||
// main::@6
|
||||
// case 4:
|
||||
// SCREEN[i] = '1';
|
||||
// break;
|
||||
// [12] if((byte) main::i#1==(byte) 4) goto main::@2 -- vbuxx_eq_vbuc1_then_la1
|
||||
cpx #4
|
||||
beq b2
|
||||
// [5] phi from main::@6 to main::@3 [phi:main::@6->main::@3]
|
||||
// [5] phi (byte) main::i#14 = (byte) main::i#1 [phi:main::@6->main::@3#0] -- register_copy
|
||||
jmp b3
|
||||
// main::@2
|
||||
b2:
|
||||
// SCREEN[i] = '1'
|
||||
// [13] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← (byte) '1' -- pbuc1_derefidx_vbuxx=vbuc2
|
||||
lda #'1'
|
||||
sta SCREEN,x
|
||||
// main::@4
|
||||
// SCREEN[i] |= 0x80
|
||||
// [14] *((const byte*) main::SCREEN#0 + (byte) main::i#1) ← *((const byte*) main::SCREEN#0 + (byte) main::i#1) | (byte) $80 -- pbuc1_derefidx_vbuxx=pbuc1_derefidx_vbuxx_bor_vbuc2
|
||||
// Invert the screen character
|
||||
lda #$80
|
||||
ora SCREEN,x
|
||||
sta SCREEN,x
|
||||
jmp b5
|
||||
}
|
||||
// File Data
|
||||
|
||||
19
src/test/ref/switch-1.sym
Normal file
19
src/test/ref/switch-1.sym
Normal file
@ -0,0 +1,19 @@
|
||||
(label) @1
|
||||
(label) @begin
|
||||
(label) @end
|
||||
(void()) main()
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@3
|
||||
(label) main::@4
|
||||
(label) main::@5
|
||||
(label) main::@6
|
||||
(label) main::@return
|
||||
(byte*) main::SCREEN
|
||||
(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
|
||||
(byte) main::i
|
||||
(byte) main::i#1 reg byte x 151.5
|
||||
(byte) main::i#12 reg byte x 213.0
|
||||
(byte) main::i#14 reg byte x 61.5
|
||||
|
||||
reg byte x [ main::i#12 main::i#14 main::i#1 ]
|
||||
Loading…
Reference in New Issue
Block a user