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fix: underflow detected

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Jonny
2025-02-27 21:53:48 +00:00
parent 6f5fcd4d85
commit 617f6759d3
1 changed files with 1 additions and 0 deletions
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src/main/wacc/backend/asmGenerator.scala
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@@ -336,6 +336,7 @@ object asmGenerator {
chain += Jump(LabelArg(OverflowError.errLabel), Cond.Overflow) chain += Jump(LabelArg(OverflowError.errLabel), Cond.Overflow)
case BinaryOperator.Sub => case BinaryOperator.Sub =>
chain += Subtract(destX, stack.head) chain += Subtract(destX, stack.head)
chain += Jump(LabelArg(OverflowError.errLabel), Cond.Overflow)
chain += stack.drop() chain += stack.drop()
chain += stack.push(destX.size, RAX) chain += stack.push(destX.size, RAX)
case BinaryOperator.Mul => case BinaryOperator.Mul =>