diff options
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 b0edfeb7bd..33c2d95988 100644 --- a/lib/CodeGen/MachineTraceMetrics.h +++ b/lib/CodeGen/MachineTraceMetrics.h @@ -174,6 +174,11 @@ public: /// Instruction heights have been computed. This implies hasValidHeight(). bool HasValidInstrHeights; + /// Critical path length. This is the number of cycles in the longest data + /// dependency chain through the trace. This is only valid when both + /// HasValidInstrDepths and HasValidInstrHeights are set. + unsigned CriticalPath; + /// Live-in registers. These registers are defined above the current block /// and used by this block or a block below it. /// This does not include PHI uses in the current block, but it does @@ -224,6 +229,7 @@ public: void computeTrace(const MachineBasicBlock*); void computeDepthResources(const MachineBasicBlock*); void computeHeightResources(const MachineBasicBlock*); + unsigned computeCrossBlockCriticalPath(const TraceBlockInfo&); void computeInstrDepths(const MachineBasicBlock*); void computeInstrHeights(const MachineBasicBlock*); void addLiveIns(const MachineInstr *DefMI, |