- Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill...

[oota-llvm.git] / lib / Target / Sparc / SparcInstrInfo.cpp

diff --git a/lib/Target/Sparc/SparcInstrInfo.cpp b/lib/Target/Sparc/SparcInstrInfo.cpp
index b587c282165c14f5c2d70056c508ce7101cf20a8..67df87b5f07ac58c98133197efde9167980986b6 100644 (file)
--- a/lib/Target/Sparc/SparcInstrInfo.cpp
+++ b/lib/Target/Sparc/SparcInstrInfo.cpp
@@ -222,9 +222,10 @@ void SparcInstrInfo::loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
   return;
 }
 
-MachineInstr *SparcInstrInfo::foldMemoryOperand(MachineInstr* MI,
-                                                 SmallVectorImpl<unsigned> &Ops,
-                                                 int FI) const {
+MachineInstr *SparcInstrInfo::foldMemoryOperand(MachineFunction &MF,
+                                                MachineInstr* MI,
+                                                SmallVectorImpl<unsigned> &Ops,
+                                                int FI) const {
   if (Ops.size() != 1) return NULL;
 
   unsigned OpNum = Ops[0];
@@ -246,16 +247,19 @@ MachineInstr *SparcInstrInfo::foldMemoryOperand(MachineInstr* MI,
     isFloat = true;
     // FALLTHROUGH
   case SP::FMOVD:
-    if (OpNum == 0)  // COPY -> STORE
+    if (OpNum == 0) { // COPY -> STORE
+      unsigned SrcReg = MI->getOperand(1).getReg();
+      bool isKill = MI->getOperand(1).isKill();
       NewMI = BuildMI(get(isFloat ? SP::STFri : SP::STDFri))
-               .addFrameIndex(FI).addImm(0).addReg(MI->getOperand(1).getReg());
-    else             // COPY -> LOAD
-      NewMI = BuildMI(get(isFloat ? SP::LDFri : SP::LDDFri),
-                     MI->getOperand(0).getReg()).addFrameIndex(FI).addImm(0);
+        .addFrameIndex(FI).addImm(0).addReg(SrcReg, false, false, isKill);
+    } else {             // COPY -> LOAD
+      unsigned DstReg = MI->getOperand(0).getReg();
+      bool isDead = MI->getOperand(0).isDead();
+      NewMI = BuildMI(get(isFloat ? SP::LDFri : SP::LDDFri))
+        .addReg(DstReg, true, false, false, isDead).addFrameIndex(FI).addImm(0);
+    }
     break;
   }
 
-  if (NewMI)
-    NewMI->copyKillDeadInfo(MI);
   return NewMI;
-}
\ No newline at end of file
+}