Make the role of MVT::i32 clearer here, and add a

[oota-llvm.git] / lib / CodeGen / README.txt

diff --git a/lib/CodeGen/README.txt b/lib/CodeGen/README.txt
index f7975fea6d190f6f013c10ffe8a66a4854ef571e..d5ddd217962100d8b2c0c70e867dee3ae9282d64 100644 (file)
--- a/lib/CodeGen/README.txt
+++ b/lib/CodeGen/README.txt
@@ -200,4 +200,9 @@ synthesize the various copy insertion/inspection methods in TargetInstrInfo.
 
 //===---------------------------------------------------------------------===//
 
-Avoid issuing copies of TargetInstrInfo::implicit_def.
+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