git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160997
91177308-0d34-0410-b5e6-
96231b3b80d8
/// Invalidate cached information about MBB. This must be called *before* MBB
/// is erased, or the CFG is otherwise changed.
+ ///
+ /// This invalidates per-block information about resource usage for MBB only,
+ /// and it invalidates per-trace information for any trace that passes
+ /// through MBB.
+ ///
+ /// Call Ensemble::getTrace() again to update any trace handles.
void invalidate(const MachineBasicBlock *MBB);
private: