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Jakob Stoklund Olesen
795083115c
Ensure CopyToReg nodes are always glued to the call instruction.
The CopyToReg nodes that set up the argument registers before a call must be glued to the call instruction. Otherwise, the scheduler may emit the physreg copies long before the call, causing long live ranges for the fixed registers. Besides disabling good register allocation, that can also expose problems when EmitInstrWithCustomInserter() splits a basic block during the live range of a physreg. llvm-svn: 159721
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