Bug 25681 - F# compiler generates code with stack overflow for trivial recursion (GCD)
Summary: F# compiler generates code with stack overflow for trivial recursion (GCD)
Alias: None
Product: Runtime
Classification: Mono
Component: JIT ()
Version: unspecified
Hardware: PC Linux
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2015-01-02 03:08 UTC by William Webber
Modified: 2018-02-28 22:51 UTC (History)
4 users (show)

Is this bug a regression?: ---
Last known good build:

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Description William Webber 2015-01-02 03:08:41 UTC
Following simple code:

let rec gcd x y =
    if y = 0 then
        gcd y (x % y)

let test1 = gcd 1024 12
printfn "%d" test1

Runs correctly in fsharpi.
Compile with fsharpc; resulting executable produces error of form:

Stack overflow: IP: 0x40c25d74, fault addr: (nil)

Insert printfn statement anywhere within the gcd function, and the code works.
Comment 1 Ludovic Henry 2018-02-28 22:51:24 UTC
I cannot reproduce with Mono (master/798c5efa52a).