Add a new interface to allow IR-level passes to access codegen-specific information.

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

diff --git a/lib/CodeGen/EarlyIfConversion.cpp b/lib/CodeGen/EarlyIfConversion.cpp
index b533387dfe797505ffa68bf82122976489eee154..7f28828a5d20adf606408958f5e189aac6f3617e 100644 (file)
--- a/lib/CodeGen/EarlyIfConversion.cpp
+++ b/lib/CodeGen/EarlyIfConversion.cpp
@@ -18,12 +18,12 @@
 
 #define DEBUG_TYPE "early-ifcvt"
 #include "MachineTraceMetrics.h"
-#include "llvm/Function.h"
 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/SetVector.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SparseSet.h"
+#include "llvm/ADT/Statistic.h"
 #include "llvm/CodeGen/MachineBranchProbabilityInfo.h"
 #include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/MachineFunction.h"
@@ -31,9 +31,9 @@
 #include "llvm/CodeGen/MachineLoopInfo.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/Passes.h"
-#include "llvm/MC/MCInstrItineraries.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
@@ -50,6 +50,11 @@ BlockInstrLimit("early-ifcvt-limit", cl::init(30), cl::Hidden,
 static cl::opt<bool> Stress("stress-early-ifcvt", cl::Hidden,
   cl::desc("Turn all knobs to 11"));
 
+STATISTIC(NumDiamondsSeen,  "Number of diamonds");
+STATISTIC(NumDiamondsConv,  "Number of diamonds converted");
+STATISTIC(NumTrianglesSeen, "Number of triangles");
+STATISTIC(NumTrianglesConv, "Number of triangles converted");
+
 //===----------------------------------------------------------------------===//
 //                                 SSAIfConv
 //===----------------------------------------------------------------------===//
@@ -434,6 +439,10 @@ bool SSAIfConv::canConvertIf(MachineBasicBlock *MBB) {
   if (!findInsertionPoint())
     return false;
 
+  if (isTriangle())
+    ++NumTrianglesSeen;
+  else
+    ++NumDiamondsSeen;
   return true;
 }
 
@@ -499,6 +508,12 @@ void SSAIfConv::rewritePHIOperands() {
 void SSAIfConv::convertIf(SmallVectorImpl<MachineBasicBlock*> &RemovedBlocks) {
   assert(Head && Tail && TBB && FBB && "Call canConvertIf first.");
 
+  // Update statistics.
+  if (isTriangle())
+    ++NumTrianglesConv;
+  else
+    ++NumDiamondsConv;
+
   // Move all instructions into Head, except for the terminators.
   if (TBB != Tail)
     Head->splice(InsertionPoint, TBB, TBB->begin(), TBB->getFirstTerminator());
@@ -759,11 +774,11 @@ bool EarlyIfConverter::tryConvertIf(MachineBasicBlock *MBB) {
 
 bool EarlyIfConverter::runOnMachineFunction(MachineFunction &MF) {
   DEBUG(dbgs() << "********** EARLY IF-CONVERSION **********\n"
-               << "********** Function: "
-               << ((Value*)MF.getFunction())->getName() << '\n');
+               << "********** Function: " << MF.getName() << '\n');
   TII = MF.getTarget().getInstrInfo();
   TRI = MF.getTarget().getRegisterInfo();
-  SchedModel = MF.getTarget().getInstrItineraryData()->SchedModel;
+  SchedModel =
+    MF.getTarget().getSubtarget<TargetSubtargetInfo>().getSchedModel();
   MRI = &MF.getRegInfo();
   DomTree = &getAnalysis<MachineDominatorTree>();
   Loops = getAnalysisIfAvailable<MachineLoopInfo>();