From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Sat, 4 Dec 2010 15:28:22 +0000 (+0000)
Subject: Remove unneeded zero arrays.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3069cbf7b3ef9a31bbb8e434686b7259052c364a;p=oota-llvm.git

Remove unneeded zero arrays.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120910 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 4b970e091fe..2f7fd25f24c 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -2679,8 +2679,7 @@ void SelectionDAGLegalize::ExpandNode(SDNode *Node,
     SDValue True, False;
     EVT VT =  Node->getOperand(0).getValueType();
     EVT NVT = Node->getValueType(0);
-    const uint64_t zero[] = {0, 0};
-    APFloat apf = APFloat(APInt(VT.getSizeInBits(), 2, zero));
+    APFloat apf(APInt::getNullValue(VT.getSizeInBits()));
     APInt x = APInt::getSignBit(NVT.getSizeInBits());
     (void)apf.convertFromAPInt(x, false, APFloat::rmNearestTiesToEven);
     Tmp1 = DAG.getConstantFP(apf, VT);
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 747c4af8d87..7e408a0707b 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2356,10 +2356,9 @@ SDValue SelectionDAG::getNode(unsigned Opcode, DebugLoc DL,
       return getConstant(APInt(Val).zextOrTrunc(VT.getSizeInBits()), VT);
     case ISD::UINT_TO_FP:
     case ISD::SINT_TO_FP: {
-      const uint64_t zero[] = {0, 0};
       // No compile time operations on ppcf128.
       if (VT == MVT::ppcf128) break;
-      APFloat apf = APFloat(APInt(VT.getSizeInBits(), 2, zero));
+      APFloat apf(APInt::getNullValue(VT.getSizeInBits()));
       (void)apf.convertFromAPInt(Val,
                                  Opcode==ISD::SINT_TO_FP,
                                  APFloat::rmNearestTiesToEven);
diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp
index 7f21e650ef9..f28697530b3 100644
--- a/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -564,8 +564,7 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
       else if (CE->getType()->isDoubleTy())
         GV.DoubleVal = GV.IntVal.roundToDouble();
       else if (CE->getType()->isX86_FP80Ty()) {
-        const uint64_t zero[] = {0, 0};
-        APFloat apf = APFloat(APInt(80, 2, zero));
+        APFloat apf = APFloat::getZero(APFloat::x87DoubleExtended);
         (void)apf.convertFromAPInt(GV.IntVal,
                                    false,
                                    APFloat::rmNearestTiesToEven);
@@ -580,8 +579,7 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
       else if (CE->getType()->isDoubleTy())
         GV.DoubleVal = GV.IntVal.signedRoundToDouble();
       else if (CE->getType()->isX86_FP80Ty()) {
-        const uint64_t zero[] = { 0, 0};
-        APFloat apf = APFloat(APInt(80, 2, zero));
+        APFloat apf = APFloat::getZero(APFloat::x87DoubleExtended);
         (void)apf.convertFromAPInt(GV.IntVal,
                                    true,
                                    APFloat::rmNearestTiesToEven);
diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp
index 9a91dafab2f..eb58f7907c7 100644
--- a/lib/VMCore/ConstantFold.cpp
+++ b/lib/VMCore/ConstantFold.cpp
@@ -637,9 +637,7 @@ Constant *llvm::ConstantFoldCastInstruction(unsigned opc, Constant *V,
   case Instruction::SIToFP:
     if (ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
       APInt api = CI->getValue();
-      const uint64_t zero[] = {0, 0};
-      APFloat apf = APFloat(APInt(DestTy->getPrimitiveSizeInBits(),
-                                  2, zero));
+      APFloat apf(APInt::getNullValue(DestTy->getPrimitiveSizeInBits()));
       (void)apf.convertFromAPInt(api, 
                                  opc==Instruction::SIToFP,
                                  APFloat::rmNearestTiesToEven);