[llvm-commits] Patch for review: Speeding up ScheduleDAG computations

[Evan Cheng]

On Mar 10, 2008, at 1:55 PM, Dan Gohman wrote:

>
> On Mar 7, 2008, at 4:49 PM, Chris Lattner wrote:
>
>> On Mar 7, 2008, at 4:42 PM, Evan Cheng wrote:
>>> Did you use make Output/176.gcc.diff-llc? I think the makefile rule
>>> uses -output.
>>
>> More specifically:
>>
>>  make bugpoint-llc
>>
>> Should work.  When it gets confused, use "cd Output/bugpoint-llc;
>> bugpoint <copied options>" where the options copied come from  
>> whatever
>> 'make bugpoint-llc' does, but without -output.
>
> That's cool. Unfortunately neither "make bugpoint-llc" nor copying its
> bugpoint command and removing -output produced a testcase that
> reproduces the problem :-/.

Yeah. Unfortunately the larger the test case, the more likely this  
happens. It is a big pain in the behind. Are you able to get somewhere  
by trimming down the test or add printf's? I know that's back to the  
stone age, but when all else fails, that's what we are left with.

Evan

>
>
> Dan
>
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