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authorEvan Cheng <evan.cheng@apple.com>2008-06-06 19:52:44 +0000
committerEvan Cheng <evan.cheng@apple.com>2008-06-06 19:52:44 +0000
commit877333b99dd830c3e8bb7eaa1345ea942d29fc06 (patch)
tree486ccc53247c9669fdd239540fab53dc2099a641 /lib/CodeGen/README.txt
parent6b4a65f4e7a668815593eb9dea2b994eaad70a86 (diff)
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Enable stack coloring by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52057 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/README.txt')
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diff --git a/lib/CodeGen/README.txt b/lib/CodeGen/README.txt
index a66fc9dcdc..d5ddd21796 100644
--- a/lib/CodeGen/README.txt
+++ b/lib/CodeGen/README.txt
@@ -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