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(parent: a360268) | patch
Added major new capabilities to scheduler (only BURR for now) to support physical...
authorEvan Cheng <evan.cheng@apple.com>
Tue, 25 Sep 2007 01:54:36 +0000 (01:54 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Tue, 25 Sep 2007 01:54:36 +0000 (01:54 +0000)
commita6fb1b6743ee1411accf2d6e636f73f2ee0a7f5b
tree05eb93ca35bcfe154a16403c81b638ae3abf777btree | snapshot
parenta3602685b34f4c9a1602fdc7fb120a7f51228736commit | diff
Added major new capabilities to scheduler (only BURR for now) to support physical register dependency. The BURR scheduler can now backtrace and duplicate instructions in order to avoid "expensive / impossible to copy" values (e.g. status flag EFLAGS for x86) from being clobbered.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42284 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/CodeGen/ScheduleDAG.h diff | blob | history
lib/CodeGen/SelectionDAG/ScheduleDAG.cpp diff | blob | history
lib/CodeGen/SelectionDAG/ScheduleDAGList.cpp diff | blob | history
lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp diff | blob | history
lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp diff | blob | history
lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors