Remove a source of nondeterminism from the LoopVectorizer.

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

diff --git a/lib/CodeGen/ShrinkWrapping.cpp b/lib/CodeGen/ShrinkWrapping.cpp
index 7b5bca4952064f07d81402fc4d485b41b6ccc1eb..9ab491808fe5700ffff6ec80aa37e46e6217c5aa 100644 (file)
--- a/lib/CodeGen/ShrinkWrapping.cpp
+++ b/lib/CodeGen/ShrinkWrapping.cpp
@@ -35,22 +35,21 @@
 #define DEBUG_TYPE "shrink-wrap"
 
 #include "PrologEpilogInserter.h"
-#include "llvm/CodeGen/MachineDominators.h"
-#include "llvm/CodeGen/MachineLoopInfo.h"
-#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/CodeGen/MachineFrameInfo.h"
-#include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/ADT/SparseBitVector.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/PostOrderIterator.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SparseBitVector.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/CodeGen/MachineDominators.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/CodeGen/MachineLoopInfo.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/Debug.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/Statistic.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetRegisterInfo.h"
 #include <sstream>
 
 using namespace llvm;
@@ -93,6 +92,7 @@ void PEI::getAnalysisUsage(AnalysisUsage &AU) const {
   }
   AU.addPreserved<MachineLoopInfo>();
   AU.addPreserved<MachineDominatorTree>();
+  AU.addRequired<TargetPassConfig>();
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 
@@ -124,7 +124,7 @@ MachineLoop* PEI::getTopLevelLoopParent(MachineLoop *LP) {
 }
 
 bool PEI::isReturnBlock(MachineBasicBlock* MBB) {
-  return (MBB && !MBB->empty() && MBB->back().getDesc().isReturn());
+  return (MBB && !MBB->empty() && MBB->back().isReturn());
 }
 
 // Initialize shrink wrapping DFA sets, called before iterations.
@@ -158,7 +158,7 @@ void PEI::initShrinkWrappingInfo() {
   // via --shrink-wrap-func=<funcname>.
 #ifndef NDEBUG
   if (ShrinkWrapFunc != "") {
-    std::string MFName = MF->getFunction()->getNameStr();
+    std::string MFName = MF->getName().str();
     ShrinkWrapThisFunction = (MFName == ShrinkWrapFunc);
   }
 #endif
@@ -186,7 +186,7 @@ void PEI::placeCSRSpillsAndRestores(MachineFunction &Fn) {
 
   DEBUG(if (ShrinkWrapThisFunction) {
       dbgs() << "Place CSR spills/restores for "
-             << MF->getFunction()->getName() << "\n";
+             << MF->getName() << "\n";
     });
 
   if (calculateSets(Fn))
@@ -277,7 +277,7 @@ void PEI::calculateAnticAvail(MachineFunction &Fn) {
   // Initialize data flow sets.
   clearAnticAvailSets();
 
-  // Calulate Antic{In,Out} and Avail{In,Out} iteratively on the MCFG.
+  // Calculate Antic{In,Out} and Avail{In,Out} iteratively on the MCFG.
   bool changed = true;
   unsigned iterations = 0;
   while (changed) {
@@ -363,7 +363,7 @@ bool PEI::calculateSets(MachineFunction &Fn) {
   // If no CSRs used, we are done.
   if (CSI.empty()) {
     DEBUG(if (ShrinkWrapThisFunction)
-            dbgs() << "DISABLED: " << Fn.getFunction()->getName()
+            dbgs() << "DISABLED: " << Fn.getName()
                    << ": uses no callee-saved registers\n");
     return false;
   }
@@ -383,7 +383,7 @@ bool PEI::calculateSets(MachineFunction &Fn) {
   // implementation to functions with <= 500 MBBs.
   if (Fn.size() > 500) {
     DEBUG(if (ShrinkWrapThisFunction)
-            dbgs() << "DISABLED: " << Fn.getFunction()->getName()
+            dbgs() << "DISABLED: " << Fn.getName()
                    << ": too large (" << Fn.size() << " MBBs)\n");
     ShrinkWrapThisFunction = false;
   }
@@ -465,7 +465,7 @@ bool PEI::calculateSets(MachineFunction &Fn) {
   }
 
   if (allCSRUsesInEntryBlock) {
-    DEBUG(dbgs() << "DISABLED: " << Fn.getFunction()->getName()
+    DEBUG(dbgs() << "DISABLED: " << Fn.getName()
                  << ": all CSRs used in EntryBlock\n");
     ShrinkWrapThisFunction = false;
   } else {
@@ -477,7 +477,7 @@ bool PEI::calculateSets(MachineFunction &Fn) {
         allCSRsUsedInEntryFanout = false;
     }
     if (allCSRsUsedInEntryFanout) {
-      DEBUG(dbgs() << "DISABLED: " << Fn.getFunction()->getName()
+      DEBUG(dbgs() << "DISABLED: " << Fn.getName()
                    << ": all CSRs used in imm successors of EntryBlock\n");
       ShrinkWrapThisFunction = false;
     }
@@ -504,7 +504,7 @@ bool PEI::calculateSets(MachineFunction &Fn) {
       if (dominatesExitNodes) {
         CSRUsedInChokePoints |= CSRUsed[MBB];
         if (CSRUsedInChokePoints == UsedCSRegs) {
-          DEBUG(dbgs() << "DISABLED: " << Fn.getFunction()->getName()
+          DEBUG(dbgs() << "DISABLED: " << Fn.getName()
                        << ": all CSRs used in choke point(s) at "
                        << getBasicBlockName(MBB) << "\n");
           ShrinkWrapThisFunction = false;
@@ -520,7 +520,7 @@ bool PEI::calculateSets(MachineFunction &Fn) {
     return false;
 
   DEBUG({
-      dbgs() << "ENABLED: " << Fn.getFunction()->getName();
+      dbgs() << "ENABLED: " << Fn.getName();
       if (HasFastExitPath)
         dbgs() << " (fast exit path)";
       dbgs() << "\n";
@@ -860,7 +860,7 @@ void PEI::placeSpillsAndRestores(MachineFunction &Fn) {
   DEBUG(if (ShrinkWrapDebugging >= BasicInfo) {
       dbgs() << "-----------------------------------------------------------\n";
       dbgs() << "total iterations = " << iterations << " ( "
-           << Fn.getFunction()->getName()
+           << Fn.getName()
            << " " << numSRReducedThisFunc
            << " " << Fn.size()
            << " )\n";
@@ -983,7 +983,7 @@ void PEI::verifySpillRestorePlacement() {
       if (isReturnBlock(SBB) || SBB->succ_size() == 0) {
         if (restored != spilled) {
           CSRegSet notRestored = (spilled - restored);
-          DEBUG(dbgs() << MF->getFunction()->getName() << ": "
+          DEBUG(dbgs() << MF->getName() << ": "
                        << stringifyCSRegSet(notRestored)
                        << " spilled at " << getBasicBlockName(MBB)
                        << " are never restored on path to return "
@@ -1031,7 +1031,7 @@ void PEI::verifySpillRestorePlacement() {
     }
     if (spilled != restored) {
       CSRegSet notSpilled = (restored - spilled);
-      DEBUG(dbgs() << MF->getFunction()->getName() << ": "
+      DEBUG(dbgs() << MF->getName() << ": "
                    << stringifyCSRegSet(notSpilled)
                    << " restored at " << getBasicBlockName(MBB)
                    << " are never spilled\n");
@@ -1045,7 +1045,7 @@ std::string PEI::getBasicBlockName(const MachineBasicBlock* MBB) {
     return "";
 
   if (MBB->getBasicBlock())
-    return MBB->getBasicBlock()->getNameStr();
+    return MBB->getBasicBlock()->getName().str();
 
   std::ostringstream name;
   name << "_MBB_" << MBB->getNumber();