//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_CODEGEN_MACHINE_TRACE_METRICS_H
-#define LLVM_CODEGEN_MACHINE_TRACE_METRICS_H
+#ifndef LLVM_CODEGEN_MACHINETRACEMETRICS_H
+#define LLVM_CODEGEN_MACHINETRACEMETRICS_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
/// classes are included. For the caller to account for extra machine
/// instructions, it must first resolve each instruction's scheduling class.
unsigned getResourceLength(
- ArrayRef<const MachineBasicBlock*> Extrablocks = None,
- ArrayRef<const MCSchedClassDesc*> ExtraInstrs = None) const;
+ ArrayRef<const MachineBasicBlock *> Extrablocks = None,
+ ArrayRef<const MCSchedClassDesc *> ExtraInstrs = None,
+ ArrayRef<const MCSchedClassDesc *> RemoveInstrs = None) const;
/// Return the length of the (data dependency) critical path through the
/// trace.
/// Return the Depth of a PHI instruction in a trace center block successor.
/// The PHI does not have to be part of the trace.
unsigned getPHIDepth(const MachineInstr *PHI) const;
+
+ /// A dependence is useful if the basic block of the defining instruction
+ /// is part of the trace of the user instruction. It is assumed that DefMI
+ /// dominates UseMI (see also isUsefulDominator).
+ bool isDepInTrace(const MachineInstr *DefMI,
+ const MachineInstr *UseMI) const;
};
/// A trace ensemble is a collection of traces selected using the same