Remove attribution from file headers, per discussion on llvmdev.

[oota-llvm.git] / lib / Target / TargetInstrInfo.cpp

diff --git a/lib/Target/TargetInstrInfo.cpp b/lib/Target/TargetInstrInfo.cpp
index 20f32a2ad9bb341069311625582ed775866fae37..17e9ac8e3f9924e6f879fdf387bd666bfb2b092c 100644 (file)
--- a/lib/Target/TargetInstrInfo.cpp
+++ b/lib/Target/TargetInstrInfo.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -61,21 +61,21 @@ MachineInstr *TargetInstrInfo::commuteInstruction(MachineInstr *MI) const {
 }
 
 bool TargetInstrInfo::PredicateInstruction(MachineInstr *MI,
-                                      std::vector<MachineOperand> &Cond) const {
+                                const std::vector<MachineOperand> &Pred) const {
   bool MadeChange = false;
   const TargetInstrDescriptor *TID = MI->getInstrDescriptor();
   if (TID->Flags & M_PREDICABLE) {
     for (unsigned j = 0, i = 0, e = MI->getNumOperands(); i != e; ++i) {
       if ((TID->OpInfo[i].Flags & M_PREDICATE_OPERAND)) {
         MachineOperand &MO = MI->getOperand(i);
-        if (MO.isReg()) {
-          MO.setReg(Cond[j].getReg());
+        if (MO.isRegister()) {
+          MO.setReg(Pred[j].getReg());
           MadeChange = true;
-        } else if (MO.isImm()) {
-          MO.setImm(Cond[j].getImmedValue());
+        } else if (MO.isImmediate()) {
+          MO.setImm(Pred[j].getImmedValue());
           MadeChange = true;
-        } else if (MO.isMBB()) {
-          MO.setMachineBasicBlock(Cond[j].getMachineBasicBlock());
+        } else if (MO.isMachineBasicBlock()) {
+          MO.setMachineBasicBlock(Pred[j].getMachineBasicBlock());
           MadeChange = true;
         }
         ++j;
@@ -85,6 +85,15 @@ bool TargetInstrInfo::PredicateInstruction(MachineInstr *MI,
   return MadeChange;
 }
 
-unsigned TargetInstrInfo::getBlockSize(MachineBasicBlock *MBB) const {
-  return (unsigned)std::distance(MBB->begin(), MBB->end());
+bool TargetInstrInfo::isUnpredicatedTerminator(const MachineInstr *MI) const {
+  const TargetInstrDescriptor *TID = MI->getInstrDescriptor();
+  if (TID->Flags & M_TERMINATOR_FLAG) {
+    // Conditional branch is a special case.
+    if ((TID->Flags & M_BRANCH_FLAG) != 0 && (TID->Flags & M_BARRIER_FLAG) == 0)
+      return true;
+    if ((TID->Flags & M_PREDICABLE) == 0)
+      return true;
+    return !isPredicated(MI);
+  }
+  return false;
 }