maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Clarify invalidation strategy in comment. 

llvm-svn: 160997
This commit is contained in:
Jakob Stoklund Olesen 2012-07-30 21:16:22 +00:00
parent 7e9f6d7d58
commit 984cfe8322
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
llvm/lib/CodeGen/MachineTraceMetrics.h
View File

@ -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: