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(parent: fd50d76) | patch
Selection DAG scheduler register pressure heuristic fixes.
authorAndrew Trick <atrick@apple.com>
Thu, 20 Jan 2011 06:21:59 +0000 (06:21 +0000)
committerAndrew Trick <atrick@apple.com>
Thu, 20 Jan 2011 06:21:59 +0000 (06:21 +0000)
commit0bc308600b0069f07ba722b472c68588573ebd28
treeb94f28cf26d55bd53189b3f48d1200bf395ca2c0tree | snapshot
parentfd50d76ff854e8e60aa22b0db609de359ff3a576commit | diff
Selection DAG scheduler register pressure heuristic fixes.

Added a check for already live regs before claiming HighRegPressure.
Fixed a few cases of checking the wrong number of successors.
Added some tracing until these heuristics are better understood.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123892 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors