Eliminate unnecessary uses of getZExtValue().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106279 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp
index 37cda02..1f4538a 100644
--- a/lib/Analysis/ConstantFolding.cpp
+++ b/lib/Analysis/ConstantFolding.cpp
@@ -208,7 +208,7 @@
          i != e; ++i, ++GTI) {
       ConstantInt *CI = dyn_cast<ConstantInt>(*i);
       if (!CI) return false;  // Index isn't a simple constant?
-      if (CI->getZExtValue() == 0) continue;  // Not adding anything.
+      if (CI->isZero()) continue;  // Not adding anything.
       
       if (const StructType *ST = dyn_cast<StructType>(*GTI)) {
         // N = N + Offset
diff --git a/lib/CodeGen/DwarfEHPrepare.cpp b/lib/CodeGen/DwarfEHPrepare.cpp
index 399fb8d..6673931 100644
--- a/lib/CodeGen/DwarfEHPrepare.cpp
+++ b/lib/CodeGen/DwarfEHPrepare.cpp
@@ -210,7 +210,7 @@
       if (Val + 4 == NumOps) {
         if (ConstantInt *FinalVal =
             dyn_cast<ConstantInt>(II->getOperand(NumOps - 1)))
-          return (FinalVal->getZExtValue() == 0);
+          return FinalVal->isZero();
       }
     }
   }
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp
index 2c4a7c5..5cb739e 100644
--- a/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -345,7 +345,7 @@
 
       // If this is a constant subscript, handle it quickly.
       if (const ConstantInt *CI = dyn_cast<ConstantInt>(Idx)) {
-        if (CI->getZExtValue() == 0) continue;
+        if (CI->isZero()) continue;
         uint64_t Offs = 
           TD.getTypeAllocSize(Ty)*cast<ConstantInt>(CI)->getSExtValue();
         N = FastEmit_ri_(VT, ISD::ADD, N, NIsKill, Offs, VT);
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 833173f..f43c4e4 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -2734,7 +2734,7 @@
 
       // If this is a constant subscript, handle it quickly.
       if (const ConstantInt *CI = dyn_cast<ConstantInt>(Idx)) {
-        if (CI->getZExtValue() == 0) continue;
+        if (CI->isZero()) continue;
         uint64_t Offs =
             TD->getTypeAllocSize(Ty)*cast<ConstantInt>(CI)->getSExtValue();
         SDValue OffsVal;
@@ -4367,7 +4367,7 @@
     SDValue Arg = getValue(I.getOperand(0));
     EVT Ty = Arg.getValueType();
 
-    if (CI->getZExtValue() == 0)
+    if (CI->isZero())
       Res = DAG.getConstant(-1ULL, Ty);
     else
       Res = DAG.getConstant(0, Ty);
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index 9128889..35a983e 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -536,7 +536,7 @@
   DebugLoc dl = Op->getDebugLoc();
   if (N.getOpcode() != ISD::ADD) {
     ConstantSDNode *NC = dyn_cast<ConstantSDNode>(N);
-    if (!NC || NC->getZExtValue() != 0)
+    if (!NC || !NC->isNullValue())
       return false;
 
     Base = Offset = N;
diff --git a/lib/Target/CellSPU/SPUISelLowering.cpp b/lib/Target/CellSPU/SPUISelLowering.cpp
index affd066..65eecba 100644
--- a/lib/Target/CellSPU/SPUISelLowering.cpp
+++ b/lib/Target/CellSPU/SPUISelLowering.cpp
@@ -2867,7 +2867,7 @@
   case SPUISD::IndirectAddr: {
     if (!ST->usingLargeMem() && Op0.getOpcode() == SPUISD::AFormAddr) {
       ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1));
-      if (CN != 0 && CN->getZExtValue() == 0) {
+      if (CN != 0 && CN->isNullValue()) {
         // (SPUindirect (SPUaform <addr>, 0), 0) ->
         // (SPUaform <addr>, 0)
 
diff --git a/lib/Target/PIC16/PIC16ISelLowering.cpp b/lib/Target/PIC16/PIC16ISelLowering.cpp
index f479f46..d4369bc 100644
--- a/lib/Target/PIC16/PIC16ISelLowering.cpp
+++ b/lib/Target/PIC16/PIC16ISelLowering.cpp
@@ -1791,14 +1791,14 @@
 static void LookThroughSetCC(SDValue &LHS, SDValue &RHS,
                              ISD::CondCode CC, unsigned &SPCC) {
   if (isa<ConstantSDNode>(RHS) &&
-      cast<ConstantSDNode>(RHS)->getZExtValue() == 0 &&
+      cast<ConstantSDNode>(RHS)->isNullValue() &&
       CC == ISD::SETNE &&
       (LHS.getOpcode() == PIC16ISD::SELECT_ICC &&
         LHS.getOperand(3).getOpcode() == PIC16ISD::SUBCC) &&
       isa<ConstantSDNode>(LHS.getOperand(0)) &&
       isa<ConstantSDNode>(LHS.getOperand(1)) &&
-      cast<ConstantSDNode>(LHS.getOperand(0))->getZExtValue() == 1 &&
-      cast<ConstantSDNode>(LHS.getOperand(1))->getZExtValue() == 0) {
+      cast<ConstantSDNode>(LHS.getOperand(0))->isOne() &&
+      cast<ConstantSDNode>(LHS.getOperand(1))->isNullValue()) {
     SDValue CMPCC = LHS.getOperand(3);
     SPCC = cast<ConstantSDNode>(LHS.getOperand(2))->getZExtValue();
     LHS = CMPCC.getOperand(0);
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 10b516a..63802fa 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -5042,19 +5042,19 @@
   default: break;
   case PPCISD::SHL:
     if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(N->getOperand(0))) {
-      if (C->getZExtValue() == 0)   // 0 << V -> 0.
+      if (C->isNullValue())   // 0 << V -> 0.
         return N->getOperand(0);
     }
     break;
   case PPCISD::SRL:
     if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(N->getOperand(0))) {
-      if (C->getZExtValue() == 0)   // 0 >>u V -> 0.
+      if (C->isNullValue())   // 0 >>u V -> 0.
         return N->getOperand(0);
     }
     break;
   case PPCISD::SRA:
     if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(N->getOperand(0))) {
-      if (C->getZExtValue() == 0 ||   //  0 >>s V -> 0.
+      if (C->isNullValue() ||   //  0 >>s V -> 0.
           C->isAllOnesValue())    // -1 >>s V -> -1.
         return N->getOperand(0);
     }
diff --git a/lib/Target/Sparc/SparcISelLowering.cpp b/lib/Target/Sparc/SparcISelLowering.cpp
index f47e53a..aafd1b4 100644
--- a/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/lib/Target/Sparc/SparcISelLowering.cpp
@@ -737,7 +737,7 @@
 static void LookThroughSetCC(SDValue &LHS, SDValue &RHS,
                              ISD::CondCode CC, unsigned &SPCC) {
   if (isa<ConstantSDNode>(RHS) &&
-      cast<ConstantSDNode>(RHS)->getZExtValue() == 0 &&
+      cast<ConstantSDNode>(RHS)->isNullValue() &&
       CC == ISD::SETNE &&
       ((LHS.getOpcode() == SPISD::SELECT_ICC &&
         LHS.getOperand(3).getOpcode() == SPISD::CMPICC) ||
@@ -745,8 +745,8 @@
         LHS.getOperand(3).getOpcode() == SPISD::CMPFCC)) &&
       isa<ConstantSDNode>(LHS.getOperand(0)) &&
       isa<ConstantSDNode>(LHS.getOperand(1)) &&
-      cast<ConstantSDNode>(LHS.getOperand(0))->getZExtValue() == 1 &&
-      cast<ConstantSDNode>(LHS.getOperand(1))->getZExtValue() == 0) {
+      cast<ConstantSDNode>(LHS.getOperand(0))->isOne() &&
+      cast<ConstantSDNode>(LHS.getOperand(1))->isNullValue()) {
     SDValue CMPCC = LHS.getOperand(3);
     SPCC = cast<ConstantSDNode>(LHS.getOperand(2))->getZExtValue();
     LHS = CMPCC.getOperand(0);
diff --git a/lib/Target/TargetLoweringObjectFile.cpp b/lib/Target/TargetLoweringObjectFile.cpp
index b9372d0..dd7b532 100644
--- a/lib/Target/TargetLoweringObjectFile.cpp
+++ b/lib/Target/TargetLoweringObjectFile.cpp
@@ -101,7 +101,7 @@
 
     ConstantInt *Null =
       dyn_cast<ConstantInt>(CVA->getOperand(ATy->getNumElements()-1));
-    if (Null == 0 || Null->getZExtValue() != 0)
+    if (Null == 0 || !Null->isZero())
       return false; // Not null terminated.
 
     // Verify that the null doesn't occur anywhere else in the string.
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp
index 4ec6965..7bbe6ab 100644
--- a/lib/Target/X86/X86FastISel.cpp
+++ b/lib/Target/X86/X86FastISel.cpp
@@ -1210,7 +1210,7 @@
     
     unsigned ResultReg = createResultReg(TLI.getRegClassFor(VT));
     BuildMI(MBB, DL, TII.get(OpC), ResultReg).
-                                  addImm(CI->getZExtValue() == 0 ? -1ULL : 0);
+                                  addImm(CI->isZero() ? -1ULL : 0);
     UpdateValueMap(&I, ResultReg);
     return true;
   }
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index b74af61..2c8e748 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -3185,7 +3185,7 @@
 /// constant +0.0.
 bool X86::isZeroNode(SDValue Elt) {
   return ((isa<ConstantSDNode>(Elt) &&
-           cast<ConstantSDNode>(Elt)->getZExtValue() == 0) ||
+           cast<ConstantSDNode>(Elt)->isNullValue()) ||
           (isa<ConstantFPSDNode>(Elt) &&
            cast<ConstantFPSDNode>(Elt)->getValueAPF().isPosZero()));
 }
@@ -6229,7 +6229,7 @@
   if (Op0.getOpcode() == ISD::AND &&
       Op0.hasOneUse() &&
       Op1.getOpcode() == ISD::Constant &&
-      cast<ConstantSDNode>(Op1)->getZExtValue() == 0 &&
+      cast<ConstantSDNode>(Op1)->isNullValue() &&
       (CC == ISD::SETEQ || CC == ISD::SETNE)) {
     SDValue NewSetCC = LowerToBT(Op0, CC, dl, DAG);
     if (NewSetCC.getNode())