clarify comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88933 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMConstantIslandPass.cpp b/lib/Target/ARM/ARMConstantIslandPass.cpp
index e3b577e..52cdd7b 100644
--- a/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -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;