Dead code elimination fails in iterative fibonacci program #8

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opened 2025-08-07 22:22:08 +00:00 by ed · 0 comments

ed commented

2025-08-07 22:22:08 +00:00

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The following program fails to compile:

main() {
	fib(10)
}

fib(n int) -> int {
	b := 0
	c := 1

	loop 0..n {
		a := b
		b = c
		c = a + b
	}

	return b
}

Error:

tests/fibonacci.q:1:1

    main() {
    ┬
    ╰─ Unused value ''

The following program fails to compile: ``` main() { fib(10) } fib(n int) -> int { b := 0 c := 1 loop 0..n { a := b b = c c = a + b } return b } ``` Error: ``` tests/fibonacci.q:1:1 main() { ┬ ╰─ Unused value '' ```

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2025-08-07 22:22:08 +00:00

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Reference: cli/q#8

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