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Enable stack coloring by default.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52057 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-06-06 19:52:44 +00:00
parent 6b4a65f4e7
commit 877333b99d
2 changed files with 11 additions and 8 deletions
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9
lib/CodeGen/README.txt
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@@ -197,3 +197,12 @@ It would be really nice to be able to write patterns in .td files for copies,
which would eliminate a bunch of explicit predicates on them (e.g. no side
effects). Once this is in place, it would be even better to have tblgen
synthesize the various copy insertion/inspection methods in TargetInstrInfo.
//===---------------------------------------------------------------------===//
Stack coloring improvments:
1. Do proper LiveStackAnalysis on all stack objects including those which are
not spill slots.
2. Reorder objects to fill in gaps between objects.
e.g. 4, 1, <gap>, 4, 1, 1, 1, <gap>, 4 => 4, 1, 1, 1, 1, 4, 4