Owen Anderson
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62d67dd3a3
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Add register pairs to the list to check for local interferences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44987 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-12-13 05:53:03 +00:00 |
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Owen Anderson
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4ba08ecbcf
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Remove ugly and horrible code. It's not necessary for correctness, and can be added back later if it causes code quality issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44986 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-12-13 05:43:37 +00:00 |
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Owen Anderson
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ed2ffa25a1
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Forgot to remove a register from the PHI-union after I'd determined that it
interfered with other registers. Seems like that might be a good thing to do. :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44902 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-12-12 01:25:08 +00:00 |
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Owen Anderson
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d525f664c9
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More progress on StrongPHIElimination. Now we actually USE the DomForest!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44877 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-12-11 20:12:11 +00:00 |
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Owen Anderson
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afc6de0015
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A little more progress on StrongPHIElimination, now that I have a better sense of
how the CodeGen machinery works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44786 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-12-10 08:07:09 +00:00 |
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Owen Anderson
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42f9e96e97
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Run computeDomForest() on the set of registers that need to be tested for
interference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44064 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-13 20:13:24 +00:00 |
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Owen Anderson
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17b1418bea
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Preserve LiveVariables when doing critical edge splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44063 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-13 20:04:45 +00:00 |
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Owen Anderson
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35e2dba672
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Break critical edges coming into blocks with PHI nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44019 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-12 17:27:27 +00:00 |
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Owen Anderson
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fe0c882e5a
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As Chris and Evan pointed out, BreakCriticalMachineEdges doesn't really need
to be a pass of its own. Instead, move it out into a helper method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44002 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-12 01:05:09 +00:00 |
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Owen Anderson
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14b3fb7805
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Take another stab at getting isLiveIn() and isLiveOut() right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43869 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-08 01:32:45 +00:00 |
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Owen Anderson
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60a877d713
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Add some more of StrongPHIElim.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43805 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-07 05:17:15 +00:00 |
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Owen Anderson
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8b96b9fce0
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Add a few comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43755 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-06 05:26:02 +00:00 |
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Owen Anderson
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ee49b5385b
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DomForest is a forest of registers, not instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43754 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-06 05:22:43 +00:00 |
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Owen Anderson
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a4ad2e740a
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StrongPHIElimination requires LiveVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43751 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-06 04:49:43 +00:00 |
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Owen Anderson
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83430bce1d
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Another step of stronger PHI elimination down.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43684 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-11-04 22:33:26 +00:00 |
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Duncan Sands
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1bd3271b16
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Add a newline at the end of the file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43550 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-10-31 08:49:24 +00:00 |
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Owen Anderson
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0bda0e8895
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Add the skeleton of a better PHI elimination pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43542 91177308-0d34-0410-b5e6-96231b3b80d8
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2007-10-31 03:37:57 +00:00 |
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