[cfe-commits] r67024 - /cfe/trunk/lib/CodeGen/README.txt

[Daniel Dunbar]

Author: ddunbar
Date: Sun Mar 15 01:39:56 2009
New Revision: 67024

URL: http://llvm.org/viewvc/llvm-project?rev=67024&view=rev
Log:
Add note on theoretical IRgen improvement.

Modified:
    cfe/trunk/lib/CodeGen/README.txt

Modified: cfe/trunk/lib/CodeGen/README.txt
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/README.txt?rev=67024&r1=67023&r2=67024&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/README.txt (original)
+++ cfe/trunk/lib/CodeGen/README.txt Sun Mar 15 01:39:56 2009
@@ -53,3 +53,13 @@
 code, but would still be nice to clean up.
 
 //===---------------------------------------------------------------------===//
+
+Deferred generation of statics incurs some additional
+overhead. Currently it is even possible to construct test cases with
+O(N^2) behavior! For at least simple cases where we can tell a global
+is used, it is probably not worth deferring it. This doesn't solve the
+O(N^2) cases, ,though...
+
+PR3810
+
+//===---------------------------------------------------------------------===//