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Detect more block overlapping for IF instructions.

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Volker Berlin 2022-07-10 15:55:31 +02:00
parent 28cc29a30a
commit e512ee4e65
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1 changed files with 15 additions and 3 deletions
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18
src/de/inetsoftware/jwebassembly/module/BranchManager.java
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@ -609,7 +609,19 @@ class BranchManager {
return; return;
} }
if( parent.overlapped( startPos ) ) { boolean overlapp = parent.overlapped( startPos );
if( !overlapp ) {
ArrayList<BreakBlock> breakOperations = this.breakOperations;
for( int i = breakOperations.size() - 1; i >= 0; i-- ) {
BreakBlock breakBlock = breakOperations.get( i );
int ep = breakBlock.endPosition;
if( startPos < ep && ep < endPos && breakBlock.breakPos < startPos ) {
overlapp = true;
break;
}
}
}
if( overlapp ) {
branch = addMiddleNode( parent, parent.startPos, endPos ); branch = addMiddleNode( parent, parent.startPos, endPos );
} else { } else {
branch = new BranchNode( startPos, endPos, WasmBlockOperator.BLOCK, WasmBlockOperator.END, conditionType ); branch = new BranchNode( startPos, endPos, WasmBlockOperator.BLOCK, WasmBlockOperator.END, conditionType );
@ -1353,7 +1365,7 @@ class BranchManager {
break; break;
} }
node = node.parent; node = node.parent;
} while( node != catchNode ); } while( true );
} }
/** /**
@ -1760,7 +1772,7 @@ class BranchManager {
this.startOp = startOp; this.startOp = startOp;
this.endOp = endOp; this.endOp = endOp;
this.data = data; this.data = data;
} }
/** /**
* {@inheritDoc} * {@inheritDoc}