misched: Fix RegisterPressureTracker handling of DebugVals.

[oota-llvm.git] / include / llvm / CodeGen / Passes.h

diff --git a/include/llvm/CodeGen/Passes.h b/include/llvm/CodeGen/Passes.h
index b7c81af4424fb16d3ee734697cb6a5e584ce071e..282e4edcfb441d5cc58b9a12b4bc51a80ac38ad7 100644 (file)
--- a/include/llvm/CodeGen/Passes.h
+++ b/include/llvm/CodeGen/Passes.h
@@ -55,6 +55,10 @@ public:
 
 private:
   PassManagerBase *PM;
+  AnalysisID StartAfter;
+  AnalysisID StopAfter;
+  bool Started;
+  bool Stopped;
 
 protected:
   TargetMachine *TM;
@@ -92,6 +96,18 @@ public:
 
   CodeGenOpt::Level getOptLevel() const { return TM->getOptLevel(); }
 
+  /// setStartStopPasses - Set the StartAfter and StopAfter passes to allow
+  /// running only a portion of the normal code-gen pass sequence.  If the
+  /// Start pass ID is zero, then compilation will begin at the normal point;
+  /// otherwise, clear the Started flag to indicate that passes should not be
+  /// added until the starting pass is seen.  If the Stop pass ID is zero,
+  /// then compilation will continue to the end.
+  void setStartStopPasses(AnalysisID Start, AnalysisID Stop) {
+    StartAfter = Start;
+    StopAfter = Stop;
+    Started = (StartAfter == 0);
+  }
+
   void setDisableVerify(bool Disable) { setOpt(DisableVerify, Disable); }
 
   bool getEnableTailMerge() const { return EnableTailMerge; }
@@ -125,6 +141,10 @@ public:
   /// Add passes to lower exception handling for the code generator.
   void addPassesToHandleExceptions();
 
+  /// Add pass to prepare the LLVM IR for code generation. This should be done
+  /// before exception handling preparation passes.
+  virtual void addCodeGenPrepare();
+
   /// Add common passes that perform LLVM IR to IR transforms in preparation for
   /// instruction selection.
   virtual void addISelPrepare();
@@ -238,7 +258,8 @@ protected:
   /// Return the pass that was added, or zero if no pass was added.
   AnalysisID addPass(AnalysisID PassID);
 
-  /// Add a pass to the PassManager.
+  /// Add a pass to the PassManager if that pass is supposed to be run, as
+  /// determined by the StartAfter and StopAfter options.
   void addPass(Pass *P);
 
   /// addMachinePasses helper to create the target-selected or overriden
@@ -271,9 +292,6 @@ namespace llvm {
   /// MachineLoopInfo - This pass is a loop analysis pass.
   extern char &MachineLoopInfoID;
 
-  /// MachineLoopRanges - This pass is an on-demand loop coverage analysis.
-  extern char &MachineLoopRangesID;
-
   /// MachineDominators - This pass is a machine dominators analysis pass.
   extern char &MachineDominatorsID;
 
@@ -298,6 +316,10 @@ namespace llvm {
   ///  This pass is still in development
   extern char &StrongPHIEliminationID;
 
+  /// LiveIntervals - This analysis keeps track of the live ranges of virtual
+  /// and physical registers.
+  extern char &LiveIntervalsID;
+
   /// LiveStacks pass. An analysis keeping track of the liveness of stack slots.
   extern char &LiveStacksID;
 
@@ -375,6 +397,18 @@ namespace llvm {
   /// into tails of their predecessors.
   extern char &TailDuplicateID;
 
+  /// MachineTraceMetrics - This pass computes critical path and CPU resource
+  /// usage in an ensemble of traces.
+  extern char &MachineTraceMetricsID;
+
+  /// EarlyIfConverter - This pass performs if-conversion on SSA form by
+  /// inserting cmov instructions.
+  extern char &EarlyIfConverterID;
+
+  /// StackSlotColoring - This pass performs stack coloring and merging.
+  /// It merges disjoint allocas to reduce the stack size.
+  extern char &StackColoringID;
+
   /// IfConverter - This pass performs machine code if conversion.
   extern char &IfConverterID;