Displaying 2 results from an estimated 2 matches for "fixkillinformation".
2011 May 26
0
[LLVMdev] Need advice on writing scheduling pass
...analysis, I call my
scheduler. After scheduling, I simply do the following:
// Fix up kill information for live intervals. Rescheduling may often have
// changed which instruction is a value's last use, and we must update
// kill flags and the kill information in the VarInfo objects.
fixKillInformation();
// Now, release the stuff we computed, and recompute it!
releaseMemory();
// Then, recompute the slot indexes. There is a function renumberIndexes,
// but it doesn't respect our new ordering of instructions, so do this by
// completely clearing the results of the slot index analy...
2011 May 26
2
[LLVMdev] Need advice on writing scheduling pass
Hi,
thank you for your explanations.
In order to get a pre-RA scheduling, I would need something like:
- LiveVars
- PhiElim
- TwoAddr
- LiveIntervals
- Coalescing
- Scheduler (new)
- SlotIndexing
- LiveIntervals2 (new)
- RegAllocMy qeustion then is, is it really so difficult to create the live intervals information, with modifications to the original algorithm, or even from scratch?