[llvm-commits] [llvm] r75173 - /llvm/trunk/lib/Target/ARM/README-Thumb.txt

[Evan Cheng]

Author: evancheng
Date: Thu Jul  9 15:50:52 2009
New Revision: 75173

URL: http://llvm.org/viewvc/llvm-project?rev=75173&view=rev
Log:
Add a Thumb readme entry.

Modified:
    llvm/trunk/lib/Target/ARM/README-Thumb.txt

Modified: llvm/trunk/lib/Target/ARM/README-Thumb.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/README-Thumb.txt?rev=75173&r1=75172&r2=75173&view=diff

==============================================================================
--- llvm/trunk/lib/Target/ARM/README-Thumb.txt (original)
+++ llvm/trunk/lib/Target/ARM/README-Thumb.txt Thu Jul  9 15:50:52 2009
@@ -226,3 +226,9 @@
 //===---------------------------------------------------------------------===//
 
 Add ldmia, stmia support.
+
+//===---------------------------------------------------------------------===//
+
+Thumb load / store address mode offsets are scaled. The values kept in the
+instruction operands are pre-scale values. This probably ought to be changed
+to avoid extra work when we convert Thumb2 instructions to Thumb1 instructions.