[llvm-commits] [llvm] r107227 - in /llvm/trunk: include/llvm/CodeGen/MachineRegisterInfo.h lib/CodeGen/CMakeLists.txt lib/CodeGen/InlineSpiller.cpp lib/CodeGen/Spiller.cpp

[Jakob Stoklund Olesen]

On Jun 29, 2010, at 6:05 PM, Evan Cheng wrote:

> 
> On Jun 29, 2010, at 4:58 PM, Jakob Stoklund Olesen wrote:
> 
>> Author: stoklund
>> Date: Tue Jun 29 18:58:39 2010
>> New Revision: 107227
>> 
>> URL: http://llvm.org/viewvc/llvm-project?rev=107227&view=rev
>> Log:
>> Begin implementation of an inline spiller.
>> 
>> InlineSpiller inserts loads and spills immediately instead of deferring to
>> VirtRegMap. This is possible now because SlotIndexes allows instructions to be
>> inserted and renumbered.
>> 
>> This is work in progress, and is mostly a copy of TrivialSpiller so far. It
>> works very well for functions that don't require spilling.
> 
> Sounds like we should switch over now! :-)

Yep, a number of test cases are already passing - the ones not requiring spilling. ;-)

The rest are failing because InlineSpiller is not properly tracking liveness of stack slots. It is simply a matter of figuring out how LiveIntervals::rewriteInstructionsForSpills is doing that.


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