Bob Wilson 71124f698b Fix pr4843: When an instruction has multiple destination registers that are ...

tied to different source registers, the TwoAddressInstructionPass needs to
be smarter.  Change it to check before replacing a source register whether
that source register is tied to a different destination register, and if so,
defer handling it until a subsequent iteration.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80654 91177308-0d34-0410-b5e6-96231b3b80d8

2009-09-01 04:18:40 +00:00

38 KiB

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