Internalize the StackMapLiveness pass.

No need to have its own header when it's not used anywhere. NFC.

llvm-svn: 233072

llvm/include/llvm/CodeGen/StackMapLivenessAnalysis.h

@@ -1,64 +0,0 @@
-//===--- StackMapLivenessAnalysis - StackMap Liveness Analysis --*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This pass calculates the liveness for each basic block in a function and
-// attaches the register live-out information to a patchpoint intrinsic (if
-// present).
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CODEGEN_STACKMAPLIVENESSANALYSIS_H
-#define LLVM_CODEGEN_STACKMAPLIVENESSANALYSIS_H
-
-#include "llvm/CodeGen/LivePhysRegs.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-
-
-namespace llvm {
-
-/// \brief This pass calculates the liveness information for each basic block in
-/// a function and attaches the register live-out information to a patchpoint
-/// intrinsic if present.
-///
-/// This pass can be disabled via the -enable-patchpoint-liveness=false flag.
-/// The pass skips functions that don't have any patchpoint intrinsics. The
-/// information provided by this pass is optional and not required by the
-/// aformentioned intrinsic to function.
-class StackMapLiveness : public MachineFunctionPass {
-  MachineFunction *MF;
-  const TargetRegisterInfo *TRI;
-  LivePhysRegs LiveRegs;
-public:
-  static char ID;
-
-  /// \brief Default construct and initialize the pass.
-  StackMapLiveness();
-
-  /// \brief Tell the pass manager which passes we depend on and what
-  /// information we preserve.
-  void getAnalysisUsage(AnalysisUsage &AU) const override;
-
-  /// \brief Calculate the liveness information for the given machine function.
-  bool runOnMachineFunction(MachineFunction &MF) override;
-
-private:
-  /// \brief Performs the actual liveness calculation for the function.
-  bool calculateLiveness();
-
-  /// \brief Add the current register live set to the instruction.
-  void addLiveOutSetToMI(MachineInstr &MI);
-
-  /// \brief Create a register mask and initialize it with the registers from
-  /// the register live set.
-  uint32_t *createRegisterMask() const;
-};
-
-} // llvm namespace
-
-#endif

llvm/lib/CodeGen/StackMapLivenessAnalysis.cpp

@@ -14,11 +14,12 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ADT/Statistic.h"
+#include "llvm/CodeGen/LivePhysRegs.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFunctionAnalysis.h"
+#include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/Passes.h"
-#include "llvm/CodeGen/StackMapLivenessAnalysis.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
@@ -28,11 +29,9 @@ using namespace llvm;
 
 #define DEBUG_TYPE "stackmaps"
 
-namespace llvm {
+static cl::opt<bool> EnablePatchPointLiveness(
-cl::opt<bool> EnablePatchPointLiveness("enable-patchpoint-liveness",
+    "enable-patchpoint-liveness", cl::Hidden, cl::init(true),
-  cl::Hidden, cl::init(true),
     cl::desc("Enable PatchPoint Liveness Analysis Pass"));
-}
 
 STATISTIC(NumStackMapFuncVisited, "Number of functions visited");
 STATISTIC(NumStackMapFuncSkipped, "Number of functions skipped");
@@ -40,6 +39,46 @@ STATISTIC(NumBBsVisited,          "Number of basic blocks visited");
 STATISTIC(NumBBsHaveNoStackmap,   "Number of basic blocks with no stackmap");
 STATISTIC(NumStackMaps,           "Number of StackMaps visited");
 
+namespace {
+/// \brief This pass calculates the liveness information for each basic block in
+/// a function and attaches the register live-out information to a patchpoint
+/// intrinsic if present.
+///
+/// This pass can be disabled via the -enable-patchpoint-liveness=false flag.
+/// The pass skips functions that don't have any patchpoint intrinsics. The
+/// information provided by this pass is optional and not required by the
+/// aformentioned intrinsic to function.
+class StackMapLiveness : public MachineFunctionPass {
+  MachineFunction *MF;
+  const TargetRegisterInfo *TRI;
+  LivePhysRegs LiveRegs;
+
+public:
+  static char ID;
+
+  /// \brief Default construct and initialize the pass.
+  StackMapLiveness();
+
+  /// \brief Tell the pass manager which passes we depend on and what
+  /// information we preserve.
+  void getAnalysisUsage(AnalysisUsage &AU) const override;
+
+  /// \brief Calculate the liveness information for the given machine function.
+  bool runOnMachineFunction(MachineFunction &MF) override;
+
+private:
+  /// \brief Performs the actual liveness calculation for the function.
+  bool calculateLiveness();
+
+  /// \brief Add the current register live set to the instruction.
+  void addLiveOutSetToMI(MachineInstr &MI);
+
+  /// \brief Create a register mask and initialize it with the registers from
+  /// the register live set.
+  uint32_t *createRegisterMask() const;
+};
+} // namespace
+
 char StackMapLiveness::ID = 0;
 char &llvm::StackMapLivenessID = StackMapLiveness::ID;
 INITIALIZE_PASS(StackMapLiveness, "stackmap-liveness",