[MCJIT] Rewrite RuntimeDyldMachO and its derived classes to use the 'Offset'

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

diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index 8dc44f546aafbd5e21d3c06d7d7a89891b9dfa52..6e7e2c7e8ca02eda30fd6d47bf7876f565e9ae2b 100644 (file)
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -12,7 +12,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#define DEBUG_TYPE "regalloc"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/IndexedMap.h"
@@ -35,9 +34,12 @@
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
 #include <algorithm>
 using namespace llvm;
 
+#define DEBUG_TYPE "regalloc"
+
 STATISTIC(NumStores, "Number of stores added");
 STATISTIC(NumLoads , "Number of loads added");
 STATISTIC(NumCopies, "Number of copies coalesced");
@@ -75,7 +77,7 @@ namespace {
       bool Dirty;               // Register needs spill.
 
       explicit LiveReg(unsigned v)
-        : LastUse(0), VirtReg(v), PhysReg(0), LastOpNum(0), Dirty(false) {}
+        : LastUse(nullptr), VirtReg(v), PhysReg(0), LastOpNum(0), Dirty(false){}
 
       unsigned getSparseSetIndex() const {
         return TargetRegisterInfo::virtReg2Index(VirtReg);
@@ -307,10 +309,10 @@ void RAFast::spillVirtReg(MachineBasicBlock::iterator MI,
         DL = (--EI)->getDebugLoc();
       } else
         DL = MI->getDebugLoc();
-      MachineBasicBlock *MBB = DBG->getParent();
       MachineInstr *NewDV =
           BuildMI(*MBB, MI, DL, TII->get(TargetOpcode::DBG_VALUE))
               .addFrameIndex(FI).addImm(Offset).addMetadata(MDPtr);
+      assert(NewDV->getParent() == MBB && "dangling parent pointer");
       (void)NewDV;
       DEBUG(dbgs() << "Inserting debug info due to spill:" << "\n" << *NewDV);
     }
@@ -319,7 +321,7 @@ void RAFast::spillVirtReg(MachineBasicBlock::iterator MI,
     // now.
     LRIDbgValues.clear();
     if (SpillKill)
-      LR.LastUse = 0; // Don't kill register again
+      LR.LastUse = nullptr; // Don't kill register again
   }
   killVirtReg(LRI);
 }
@@ -1070,8 +1072,8 @@ bool RAFast::runOnMachineFunction(MachineFunction &Fn) {
   MF = &Fn;
   MRI = &MF->getRegInfo();
   TM = &Fn.getTarget();
-  TRI = TM->getRegisterInfo();
-  TII = TM->getInstrInfo();
+  TRI = TM->getSubtargetImpl()->getRegisterInfo();
+  TII = TM->getSubtargetImpl()->getInstrInfo();
   MRI->freezeReservedRegs(Fn);
   RegClassInfo.runOnMachineFunction(Fn);
   UsedInInstr.clear();
@@ -1092,9 +1094,8 @@ bool RAFast::runOnMachineFunction(MachineFunction &Fn) {
   }
 
   // Add the clobber lists for all the instructions we skipped earlier.
-  for (SmallPtrSet<const MCInstrDesc*, 4>::const_iterator
-       I = SkippedInstrs.begin(), E = SkippedInstrs.end(); I != E; ++I)
-    if (const uint16_t *Defs = (*I)->getImplicitDefs())
+  for (const MCInstrDesc *Desc : SkippedInstrs)
+    if (const uint16_t *Defs = Desc->getImplicitDefs())
       while (*Defs)
         MRI->setPhysRegUsed(*Defs++);