Support standard DWARF TLS opcode; Darwin and PS4 use it.

[oota-llvm.git] / lib / CodeGen / MachineBlockFrequencyInfo.cpp

diff --git a/lib/CodeGen/MachineBlockFrequencyInfo.cpp b/lib/CodeGen/MachineBlockFrequencyInfo.cpp
index f3d7c80cef7467751a1826f1d5725c08374b5892..9151d99089d6b35064f36ecc3a24381e571645f9 100644 (file)
--- a/lib/CodeGen/MachineBlockFrequencyInfo.cpp
+++ b/lib/CodeGen/MachineBlockFrequencyInfo.cpp
@@ -1,4 +1,4 @@
-//====----- MachineBlockFrequencyInfo.cpp - Machine Block Frequency Analysis ----====//
+//===- MachineBlockFrequencyInfo.cpp - MBB Frequency Analysis -------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -12,8 +12,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/CodeGen/MachineBlockFrequencyInfo.h"
-#include "llvm/Analysis/BlockFrequencyImpl.h"
+#include "llvm/Analysis/BlockFrequencyInfoImpl.h"
 #include "llvm/CodeGen/MachineBranchProbabilityInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineLoopInfo.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/Support/CommandLine.h"
@@ -22,6 +24,8 @@
 
 using namespace llvm;
 
+#define DEBUG_TYPE "block-freq"
+
 #ifndef NDEBUG
 enum GVDAGType {
   GVDT_None,
@@ -33,7 +37,7 @@ static cl::opt<GVDAGType>
 ViewMachineBlockFreqPropagationDAG("view-machine-block-freq-propagation-dags",
                                    cl::Hidden,
           cl::desc("Pop up a window to show a dag displaying how machine block "
-                   "frequencies propgate through the CFG."),
+                   "frequencies propagate through the CFG."),
           cl::values(
             clEnumValN(GVDT_None, "none",
                        "do not display graphs."),
@@ -51,25 +55,31 @@ struct GraphTraits<MachineBlockFrequencyInfo *> {
   typedef MachineBasicBlock::const_succ_iterator ChildIteratorType;
   typedef MachineFunction::const_iterator nodes_iterator;
 
-  static inline const NodeType *getEntryNode(const MachineBlockFrequencyInfo *G) {
+  static inline
+  const NodeType *getEntryNode(const MachineBlockFrequencyInfo *G) {
     return G->getFunction()->begin();
   }
+
   static ChildIteratorType child_begin(const NodeType *N) {
     return N->succ_begin();
   }
+
   static ChildIteratorType child_end(const NodeType *N) {
     return N->succ_end();
   }
+
   static nodes_iterator nodes_begin(const MachineBlockFrequencyInfo *G) {
     return G->getFunction()->begin();
   }
+
   static nodes_iterator nodes_end(const MachineBlockFrequencyInfo *G) {
     return G->getFunction()->end();
   }
 };
 
 template<>
-struct DOTGraphTraits<MachineBlockFrequencyInfo*> : public DefaultDOTGraphTraits {
+struct DOTGraphTraits<MachineBlockFrequencyInfo*> :
+    public DefaultDOTGraphTraits {
   explicit DOTGraphTraits(bool isSimple=false) :
     DefaultDOTGraphTraits(isSimple) {}
 
@@ -85,7 +95,7 @@ struct DOTGraphTraits<MachineBlockFrequencyInfo*> : public DefaultDOTGraphTraits
     OS << Node->getName().str() << ":";
     switch (ViewMachineBlockFreqPropagationDAG) {
     case GVDT_Fraction:
-      Graph->getBlockFreq(Node).print(OS);
+      Graph->printBlockFreq(OS, Node);
       break;
     case GVDT_Integer:
       OS << Graph->getBlockFreq(Node).getFrequency();
@@ -106,31 +116,34 @@ struct DOTGraphTraits<MachineBlockFrequencyInfo*> : public DefaultDOTGraphTraits
 INITIALIZE_PASS_BEGIN(MachineBlockFrequencyInfo, "machine-block-freq",
                       "Machine Block Frequency Analysis", true, true)
 INITIALIZE_PASS_DEPENDENCY(MachineBranchProbabilityInfo)
+INITIALIZE_PASS_DEPENDENCY(MachineLoopInfo)
 INITIALIZE_PASS_END(MachineBlockFrequencyInfo, "machine-block-freq",
                     "Machine Block Frequency Analysis", true, true)
 
 char MachineBlockFrequencyInfo::ID = 0;
 
 
-MachineBlockFrequencyInfo::MachineBlockFrequencyInfo() : MachineFunctionPass(ID) {
+MachineBlockFrequencyInfo::
+MachineBlockFrequencyInfo() :MachineFunctionPass(ID) {
   initializeMachineBlockFrequencyInfoPass(*PassRegistry::getPassRegistry());
-  MBFI = new BlockFrequencyImpl<MachineBasicBlock, MachineFunction,
-                                MachineBranchProbabilityInfo>();
 }
 
-MachineBlockFrequencyInfo::~MachineBlockFrequencyInfo() {
-  delete MBFI;
-}
+MachineBlockFrequencyInfo::~MachineBlockFrequencyInfo() {}
 
 void MachineBlockFrequencyInfo::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.addRequired<MachineBranchProbabilityInfo>();
+  AU.addRequired<MachineLoopInfo>();
   AU.setPreservesAll();
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 
 bool MachineBlockFrequencyInfo::runOnMachineFunction(MachineFunction &F) {
-  MachineBranchProbabilityInfo &MBPI = getAnalysis<MachineBranchProbabilityInfo>();
-  MBFI->doFunction(&F, &MBPI);
+  MachineBranchProbabilityInfo &MBPI =
+      getAnalysis<MachineBranchProbabilityInfo>();
+  MachineLoopInfo &MLI = getAnalysis<MachineLoopInfo>();
+  if (!MBFI)
+    MBFI.reset(new ImplType);
+  MBFI->doFunction(&F, &MBPI, &MLI);
 #ifndef NDEBUG
   if (ViewMachineBlockFreqPropagationDAG != GVDT_None) {
     view();
@@ -139,6 +152,8 @@ bool MachineBlockFrequencyInfo::runOnMachineFunction(MachineFunction &F) {
   return false;
 }
 
+void MachineBlockFrequencyInfo::releaseMemory() { MBFI.reset(); }
+
 /// Pop up a ghostview window with the current block frequency propagation
 /// rendered using dot.
 void MachineBlockFrequencyInfo::view() const {
@@ -147,17 +162,32 @@ void MachineBlockFrequencyInfo::view() const {
   ViewGraph(const_cast<MachineBlockFrequencyInfo *>(this),
             "MachineBlockFrequencyDAGs");
 #else
-  errs() << "BlockFrequencyInfo::view is only available in debug builds on "
-            "systems with Graphviz or gv!\n";
+  errs() << "MachineBlockFrequencyInfo::view is only available in debug builds "
+    "on systems with Graphviz or gv!\n";
 #endif // NDEBUG
 }
 
 BlockFrequency MachineBlockFrequencyInfo::
 getBlockFreq(const MachineBasicBlock *MBB) const {
-  return MBFI->getBlockFreq(MBB);
+  return MBFI ? MBFI->getBlockFreq(MBB) : 0;
+}
+
+const MachineFunction *MachineBlockFrequencyInfo::getFunction() const {
+  return MBFI ? MBFI->getFunction() : nullptr;
 }
 
-MachineFunction *MachineBlockFrequencyInfo::getFunction() const {
-  return MBFI->Fn;
+raw_ostream &
+MachineBlockFrequencyInfo::printBlockFreq(raw_ostream &OS,
+                                          const BlockFrequency Freq) const {
+  return MBFI ? MBFI->printBlockFreq(OS, Freq) : OS;
 }
 
+raw_ostream &
+MachineBlockFrequencyInfo::printBlockFreq(raw_ostream &OS,
+                                          const MachineBasicBlock *MBB) const {
+  return MBFI ? MBFI->printBlockFreq(OS, MBB) : OS;
+}
+
+uint64_t MachineBlockFrequencyInfo::getEntryFreq() const {
+  return MBFI ? MBFI->getEntryFreq() : 0;
+}