[LLVMdev] Possible LiveInterval Bug

Evan Cheng evan.cheng at apple.com
Wed Jan 30 18:51:04 PST 2008

On Jan 30, 2008, at 3:53 PM, David Greene wrote:

> On Wednesday 30 January 2008 16:22, Evan Cheng wrote:
>>> I was thinking along the same lines.  But does this work for the
>>> cases where
>>> IP is _not_ end()?  Is it true that we always want to look one back
>>> from IP?
>> I think so. That's the intention and it's safe because IP != begin().
> Right.  But doesn't that imply we've had some messed up intervals  
> being
> created for quite some time, even onces where IP was _not_ end()?   
> How the
> heck did this ever work?  :-/

This routine is rarely called. I am surprised the bug hasn't surfaced  
before. But that's how it is...



>                                   -Dave
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