Bug 17672 - mono --llvm botches f# list equality
Summary: mono --llvm botches f# list equality
Alias: None
Product: Runtime
Classification: Mono
Component: JIT ()
Version: 3.2.x
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2014-02-09 17:15 UTC by Søren Debois
Modified: 2014-02-12 19:19 UTC (History)
4 users (show)

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

Test case "bug.fs" mentioned in the description. (29 bytes, application/octet-stream)
2014-02-09 17:15 UTC, Søren Debois

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Description Søren Debois 2014-02-09 17:15:59 UTC
Created attachment 6014 [details]
Test case "bug.fs" mentioned in the description.

Running mono with vs. without the --llvm switch on produces different results for the one-line f# program 

    printfn "%b" (["A"] = ["A"])

(attached, bug.fs). To wit:

> fsharpc bug.fs
F# Compiler for F# 3.0 (Open Source Edition)
Freely distributed under the Apache 2.0 Open Source License
> mono --llvm bug.exe
> mono bug.exe
> mono --version
Mono JIT compiler version 3.2.6 ((no/9b58377 Thu Jan 16 17:49:56 EST 2014)
Copyright (C) 2002-2012 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
	TLS:           normal
	SIGSEGV:       altstack
	Notification:  kqueue
	Architecture:  x86
	Disabled:      none
	Misc:          softdebug 
	LLVM:          yes(3.3svn-mono-(no/8bdedb5)
	GC:            sgen
Comment 1 Zoltan Varga 2014-02-10 16:57:23 UTC
I can reproduce this with 3.2.6, but not with mono master.
Comment 2 Rodrigo Kumpera 2014-02-12 19:19:21 UTC
The fix will be part of mono 3.2.7.