[llvm-commits] [llvm] r88933 - /llvm/trunk/lib/Target/ARM/ARMConstantIslandPass.cpp

[Jim Grosbach]

Author: grosbach
Date: Mon Nov 16 12:55:47 2009
New Revision: 88933

URL: http://llvm.org/viewvc/llvm-project?rev=88933&view=rev
Log:
clarify comment

Modified:
    llvm/trunk/lib/Target/ARM/ARMConstantIslandPass.cpp

Modified: llvm/trunk/lib/Target/ARM/ARMConstantIslandPass.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMConstantIslandPass.cpp?rev=88933&r1=88932&r2=88933&view=diff

==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMConstantIslandPass.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMConstantIslandPass.cpp Mon Nov 16 12:55:47 2009
@@ -1718,8 +1718,8 @@
   return MadeChange;
 }
 
-/// ReorderThumb2JumpTables - Use tbb / tbh instructions to generate smaller
-/// jumptables when it's possible.
+/// ReorderThumb2JumpTables - Adjust the function's block layout to ensure that
+/// jump tables always branch forwards, since that's what tbb and tbh need.
 bool ARMConstantIslands::ReorderThumb2JumpTables(MachineFunction &MF) {
   bool MadeChange = false;