[llvm-commits] [dragonegg] r130607 - /dragonegg/trunk/src/Constants.cpp

[Duncan Sands]

Author: baldrick
Date: Sat Apr 30 08:15:48 2011
New Revision: 130607

URL: http://llvm.org/viewvc/llvm-project?rev=130607&view=rev
Log:
Add a comment on improving efficiency.

Modified:
    dragonegg/trunk/src/Constants.cpp

Modified: dragonegg/trunk/src/Constants.cpp
URL: http://llvm.org/viewvc/llvm-project/dragonegg/trunk/src/Constants.cpp?rev=130607&r1=130606&r2=130607&view=diff
==============================================================================
--- dragonegg/trunk/src/Constants.cpp (original)
+++ dragonegg/trunk/src/Constants.cpp Sat Apr 30 08:15:48 2011
@@ -64,6 +64,18 @@
 //                           ... InterpretAsType ...
 //===----------------------------------------------------------------------===//
 
+// TODO: Implement InterpretAsType more efficiently.  Turning everything into
+// bits is simple but can involve a lot of work when dealing with large arrays.
+// For example:
+//  struct task_struct {
+//    char comm[16];
+//  };
+//  union task_union {
+//    struct task_struct task;
+//    unsigned long stack[2048*sizeof(long)/sizeof(long)];
+//  };
+//  union task_union init_task_union = { { comm: "swapper" } };
+
 typedef Range<int> SignedRange;
 
 /// BitSlice - A contiguous range of bits held in memory.