Evan Cheng
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85d71d4588
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If val# def is ~0U, meaning it's defined by a PHI, and it's previously split, spill before the barrier because it's impossible to determine if all the defs are spilled in the same spill slot.
llvm-svn: 58129
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2008-10-25 00:52:41 +00:00 |
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Evan Cheng
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cd160f9859
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Fix a pasto.
llvm-svn: 58102
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2008-10-24 18:46:44 +00:00 |
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Evan Cheng
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f8b09d424d
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Fix a end() dereference; remove an abort() that wasn't meant to be left in.
llvm-svn: 58072
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2008-10-24 05:53:44 +00:00 |
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Evan Cheng
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4bac4d0a16
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Avoid splitting an interval multiple times; avoid splitting re-materializable val# (for now).
llvm-svn: 58068
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2008-10-24 02:05:00 +00:00 |
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Evan Cheng
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d0d0317b9a
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Committing a good chunk of the pre-register allocation live interval splitting pass. It's handling simple cases and appear to do good things. Next: avoid splitting an interval multiple times; renumber registers when possible; record stack slot live intervals for coloring; rematerialize defs when possible.
llvm-svn: 58044
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2008-10-23 20:43:13 +00:00 |
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Evan Cheng
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7e721ecd21
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Add skeleton for the pre-register allocation live interval splitting pass.
llvm-svn: 57847
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2008-10-20 21:44:59 +00:00 |