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Merge branch 'bill/merge-cond-cls' of https://github.com/nyu-compiler-construction/pa3-chocopy-code-generation-mjolnir into sanjar/functions

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bill
2021-05-03 15:22:40 +08:00
parent a86d93fcac 9e2b344bd2
commit efc8ab2024
1 changed files with 6 additions and 4 deletions
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src/main/java/chocopy/pa3/CodeGenImpl.java
+6 -4
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@@ -434,8 +434,9 @@ public class CodeGenImpl extends CodeGenBase
@Override
public Register analyze(IfExpr node)
{
node.condition.dispatch(this);
Register result = node.condition.dispatch(this);
Label ln = generateLocalLabel();
backend.emitBEQZ(result, ln,"Jump to beginning of loop");
node.thenExpr.dispatch(this);
backend.emitJ(ln, "Jump to end of if expression");
backend.emitLocalLabel(elseBlock, "Else part of if expression");
@@ -447,8 +448,9 @@ public class CodeGenImpl extends CodeGenBase
@Override
public Register analyze(IfStmt node)
{
node.condition.dispatch(this);
Register result = node.condition.dispatch(this);
Label ln = generateLocalLabel();
backend.emitBEQZ(result, ln,"Jump to beginning of loop");
for(Stmt s:node.thenBody)
s.dispatch(this);
backend.emitJ(ln, "Jump to end of if statement");
@@ -737,13 +739,13 @@ public class CodeGenImpl extends CodeGenBase
{
Label startLoop = generateLocalLabel();
backend.emitLocalLabel(startLoop, "Beginning of while loop");
node.condition.dispatch(this);
Register result = node.condition.dispatch(this);
Label endLoop = elseBlock;
backend.emitBEQZ(result, endLoop,"Jump to beginning of loop");
for(Stmt stmt:node.body)
stmt.dispatch(this);
backend.emitJ(startLoop, "Jump to beginning of loop");
backend.emitLocalLabel(endLoop, "End of while loop");
return null;
}