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(parent: 9ae7d44) | patch
Be more clever about regclasses in ScheduleDAGSDNodes::EmitCopyFromReg.
authorJakob Stoklund Olesen <stoklund@2pi.dk>
Sun, 16 Aug 2009 17:40:59 +0000 (17:40 +0000)
committerJakob Stoklund Olesen <stoklund@2pi.dk>
Sun, 16 Aug 2009 17:40:59 +0000 (17:40 +0000)
commitf7e8af925cee687b94ed4b84235cf0efed75a68b
tree24b965d12249297bb6617a6b7262dd24403e6701tree | snapshot
parent9ae7d44d95de16be5ed7bea7e1117160d9e2d5cecommit | diff
Be more clever about regclasses in ScheduleDAGSDNodes::EmitCopyFromReg.

If two uses of a CopyFromReg want different regclasses, first try a common
sub-class, then fall back on the copy emitted in AddRegisterOperand. There is
no need for an assert here. The cross-class joiner usually cleans up nicely.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79193 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/ScheduleDAGSDNodesEmit.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors