llvm dev - Sep 2010 - [LLVMdev] Jump threading pass bug

If I use the jump threading pass on the attached IR:

$ opt before.ll -jump-threading -o - | llvm-dis -o after.ll

 a big chunk gets removed, a chunk that is actually necessary.
('before.ll' passes the test in webkit, while 'after.ll' fails)

Can someone take a look ?

-Argiris

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On Sep 2, 2010, at 8:05 AMPDT, Argyrios Kyrtzidis wrote:
> If I use the jump threading pass on the attached IR:
>
> $ opt before.ll -jump-threading -o - | llvm-dis -o after.ll
>
> a big chunk gets removed, a chunk that is actually necessary.  
> ('before.ll' passes the test in webkit, while 'after.ll'
fails)
>
> Can someone take a look ?
This is fixed in TOT, probably by 112843.
>
> -Argiris
>
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Yes, it is fixed indeed, thanks!

-Argiris

On Sep 2, 2010, at 7:37 PM, Dale Johannesen wrote:
> 
> On Sep 2, 2010, at 8:05 AMPDT, Argyrios Kyrtzidis wrote:
> 
>> If I use the jump threading pass on the attached IR:
>> 
>> $ opt before.ll -jump-threading -o - | llvm-dis -o after.ll
>> 
>> a big chunk gets removed, a chunk that is actually necessary.
('before.ll' passes the test in webkit, while 'after.ll' fails)
>> 
>> Can someone take a look ?
> 
> This is fixed in TOT, probably by 112843.
> 
>> 
>> -Argiris
>> 
> <before.ll>
>> 
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>