Dan Gohman
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b2c3e3fdd9
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Now that DeadMachineInstructionElim is basically working
correctly, it's not necessary to explicitly remove registers
from their use-def lists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56509 91177308-0d34-0410-b5e6-96231b3b80d8
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2008-09-23 22:04:18 +00:00 |
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Dan Gohman
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8468d1a845
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Track local physical register liveness. This is not the most
efficient implementation possible, but it's pretty simple and
good enough for the time being.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56504 91177308-0d34-0410-b5e6-96231b3b80d8
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2008-09-23 21:40:44 +00:00 |
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Dan Gohman
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e251b1529f
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Don't consider instructions with implicit physical register
defs to be necessarily live.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56310 91177308-0d34-0410-b5e6-96231b3b80d8
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2008-09-18 18:22:32 +00:00 |
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Dan Gohman
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d3ead4329e
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Add a new MachineInstr-level DCE pass. It is very simple, and is intended to
be used with fast-isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56268 91177308-0d34-0410-b5e6-96231b3b80d8
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2008-09-17 00:43:24 +00:00 |
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