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Diffstat (limited to 'lib/CodeGen/MachineTraceMetrics.h')
| -rw-r--r-- | lib/CodeGen/MachineTraceMetrics.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineTraceMetrics.h b/lib/CodeGen/MachineTraceMetrics.h index 56ea74ea85..732e4f6ef3 100644 --- a/lib/CodeGen/MachineTraceMetrics.h +++ b/lib/CodeGen/MachineTraceMetrics.h @@ -211,6 +211,12 @@ public: /// 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: |