X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FREADME.txt;h=be390961d7cb5346291e5749145fd548e4b5d107;hb=6d92caddc4aa5fc946b294259e00cc35536e61e8;hp=c2635dade4181062bd96f3476b220837dbc71afd;hpb=c04b423f14e8ada1c4c09fa03beed09eced02f43;p=oota-llvm.git

diff --git a/lib/Target/README.txt b/lib/Target/README.txt
index c2635dade41..be390961d7c 100644
--- a/lib/Target/README.txt
+++ b/lib/Target/README.txt
@@ -138,3 +138,15 @@ And teach the dag combiner enough to simplify the code expanded before
 legalize.  It seems plausible that this knowledge would let it simplify other
 stuff too.
 
+//===---------------------------------------------------------------------===//
+
+The loop unroller should be enhanced to be able to unroll loops that aren't 
+single basic blocks.  It should be able to handle stuff like this:
+
+  for (i = 0; i < c1; ++i)
+     if (c2 & (1 << i))
+       foo
+
+where c1/c2 are constants.
+
+