Add comments.
llvm-svn: 9697
diff --git a/llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp b/llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
index f387d19..65d1b70 100644
--- a/llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
+++ b/llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
@@ -1204,6 +1204,7 @@
}
}
+
/// Finish the job of saveState(), by collapsing FnAllocState into an LLVM
/// Constant and stuffing it inside the Module. (NOTE: Soon, there will be
/// other, better ways of storing the saved state; this one is cumbersome and
@@ -1213,8 +1214,11 @@
if (!SaveRegAllocState)
return false; // Nothing to do here, unless we're saving state.
+ // If saving state into the module, just copy new elements to the
+ // correct global.
if (!SaveStateToModule) {
ExportedFnAllocState = FnAllocState;
+ // FIXME: should ONLY copy new elements in FnAllocState
return false;
}