[llvm-commits] [llvm] r65147 - /llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp

[Dan Gohman]

Author: djg
Date: Fri Feb 20 14:29:04 2009
New Revision: 65147

URL: http://llvm.org/viewvc/llvm-project?rev=65147&view=rev
Log:
Add a comment about how Imm can be used for loop-variant values.

Modified:
    llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp?rev=65147&r1=65146&r2=65147&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp Fri Feb 20 14:29:04 2009
@@ -666,7 +666,8 @@
 
     /// Imm - The immediate value that should be added to the base immediately
     /// before Inst, because it will be folded into the imm field of the
-    /// instruction.
+    /// instruction.  This is also sometimes used for loop-variant values that
+    /// must be added inside the loop.
     SCEVHandle Imm;
 
     /// Phi - The induction variable that performs the striding that