llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.

[oota-llvm.git] / lib / Transforms / Scalar / InstructionCombining.cpp

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 864b2fa5ee050f79871514d68afec0a15094cf35..f42827cbbd69c9e68ddda0c55ddae219f8eb2a25 100644 (file)
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -1682,7 +1682,7 @@ Value *InstCombiner::SimplifyDemandedVectorElts(Value *V, APInt DemandedElts,
     
     UndefElts = UndefElts2;
     if (VWidth > InVWidth) {
-      LLVM_UNREACHABLE("Unimp");
+      llvm_unreachable("Unimp");
       // If there are more elements in the result than there are in the source,
       // then an output element is undef if the corresponding input element is
       // undef.
@@ -1690,7 +1690,7 @@ Value *InstCombiner::SimplifyDemandedVectorElts(Value *V, APInt DemandedElts,
         if (UndefElts2[OutIdx/Ratio])
           UndefElts.set(OutIdx);
     } else if (VWidth < InVWidth) {
-      LLVM_UNREACHABLE("Unimp");
+      llvm_unreachable("Unimp");
       // If there are more elements in the source than there are in the result,
       // then a result element is undef if all of the corresponding input
       // elements are undef.
@@ -1760,7 +1760,7 @@ Value *InstCombiner::SimplifyDemandedVectorElts(Value *V, APInt DemandedElts,
           RHS = InsertNewInstBefore(new ExtractElementInst(RHS, 0U,"tmp"), *II);
           
           switch (II->getIntrinsicID()) {
-          default: LLVM_UNREACHABLE("Case stmts out of sync!");
+          default: llvm_unreachable("Case stmts out of sync!");
           case Intrinsic::x86_sse_sub_ss:
           case Intrinsic::x86_sse2_sub_sd:
             TmpV = InsertNewInstBefore(BinaryOperator::CreateFSub(LHS, RHS,
@@ -1931,7 +1931,7 @@ static Value *FoldOperationIntoSelectOperand(Instruction &I, Value *SO,
     New = CmpInst::Create(*Context, CI->getOpcode(), CI->getPredicate(),
                           Op0, Op1, SO->getName()+".cmp");
   else {
-    LLVM_UNREACHABLE("Unknown binary instruction type!");
+    llvm_unreachable("Unknown binary instruction type!");
   }
   return IC->InsertNewInstBefore(New, I);
 }
@@ -2022,7 +2022,7 @@ Instruction *InstCombiner::FoldOpIntoPhi(Instruction &I) {
                                 PN->getIncomingValue(i), C, "phitmp",
                                 NonConstBB->getTerminator());
         else
-          LLVM_UNREACHABLE("Unknown binop!");
+          llvm_unreachable("Unknown binop!");
         
         AddToWorkList(cast<Instruction>(InV));
       }
@@ -3367,7 +3367,7 @@ static unsigned getICmpCode(const ICmpInst *ICI) {
   case ICmpInst::ICMP_SLE: return 6;  // 110
     // True -> 7
   default:
-    LLVM_UNREACHABLE("Invalid ICmp predicate!");
+    llvm_unreachable("Invalid ICmp predicate!");
     return 0;
   }
 }
@@ -3395,7 +3395,7 @@ static unsigned getFCmpCode(FCmpInst::Predicate CC, bool &isOrdered) {
     // True -> 7
   default:
     // Not expecting FCMP_FALSE and FCMP_TRUE;
-    LLVM_UNREACHABLE("Unexpected FCmp predicate!");
+    llvm_unreachable("Unexpected FCmp predicate!");
     return 0;
   }
 }
@@ -3407,7 +3407,7 @@ static unsigned getFCmpCode(FCmpInst::Predicate CC, bool &isOrdered) {
 static Value *getICmpValue(bool sign, unsigned code, Value *LHS, Value *RHS,
                            LLVMContext *Context) {
   switch (code) {
-  default: LLVM_UNREACHABLE("Illegal ICmp code!");
+  default: llvm_unreachable("Illegal ICmp code!");
   case  0: return Context->getConstantIntFalse();
   case  1: 
     if (sign)
@@ -3441,7 +3441,7 @@ static Value *getICmpValue(bool sign, unsigned code, Value *LHS, Value *RHS,
 static Value *getFCmpValue(bool isordered, unsigned code,
                            Value *LHS, Value *RHS, LLVMContext *Context) {
   switch (code) {
-  default: LLVM_UNREACHABLE("Illegal FCmp code!");
+  default: llvm_unreachable("Illegal FCmp code!");
   case  0:
     if (isordered)
       return new FCmpInst(*Context, FCmpInst::FCMP_ORD, LHS, RHS);
@@ -3520,7 +3520,7 @@ struct FoldICmpLogical {
     case Instruction::And: Code = LHSCode & RHSCode; break;
     case Instruction::Or:  Code = LHSCode | RHSCode; break;
     case Instruction::Xor: Code = LHSCode ^ RHSCode; break;
-    default: LLVM_UNREACHABLE("Illegal logical opcode!"); return 0;
+    default: llvm_unreachable("Illegal logical opcode!"); return 0;
     }
 
     bool isSigned = ICmpInst::isSignedPredicate(RHSICI->getPredicate()) || 
@@ -3855,10 +3855,10 @@ Instruction *InstCombiner::FoldAndOfICmps(Instruction &I,
   assert(LHSCst != RHSCst && "Compares not folded above?");
 
   switch (LHSCC) {
-  default: LLVM_UNREACHABLE("Unknown integer condition code!");
+  default: llvm_unreachable("Unknown integer condition code!");
   case ICmpInst::ICMP_EQ:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:         // (X == 13 & X == 15) -> false
     case ICmpInst::ICMP_UGT:        // (X == 13 & X >  15) -> false
     case ICmpInst::ICMP_SGT:        // (X == 13 & X >  15) -> false
@@ -3870,7 +3870,7 @@ Instruction *InstCombiner::FoldAndOfICmps(Instruction &I,
     }
   case ICmpInst::ICMP_NE:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_ULT:
       if (LHSCst == SubOne(RHSCst, Context)) // (X != 13 & X u< 14) -> X < 13
         return new ICmpInst(*Context, ICmpInst::ICMP_ULT, Val, LHSCst);
@@ -3897,7 +3897,7 @@ Instruction *InstCombiner::FoldAndOfICmps(Instruction &I,
     break;
   case ICmpInst::ICMP_ULT:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:         // (X u< 13 & X == 15) -> false
     case ICmpInst::ICMP_UGT:        // (X u< 13 & X u> 15) -> false
       return ReplaceInstUsesWith(I, Context->getConstantIntFalse());
@@ -3912,7 +3912,7 @@ Instruction *InstCombiner::FoldAndOfICmps(Instruction &I,
     break;
   case ICmpInst::ICMP_SLT:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:         // (X s< 13 & X == 15) -> false
     case ICmpInst::ICMP_SGT:        // (X s< 13 & X s> 15) -> false
       return ReplaceInstUsesWith(I, Context->getConstantIntFalse());
@@ -3927,7 +3927,7 @@ Instruction *InstCombiner::FoldAndOfICmps(Instruction &I,
     break;
   case ICmpInst::ICMP_UGT:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:         // (X u> 13 & X == 15) -> X == 15
     case ICmpInst::ICMP_UGT:        // (X u> 13 & X u> 15) -> X u> 15
       return ReplaceInstUsesWith(I, RHS);
@@ -3946,7 +3946,7 @@ Instruction *InstCombiner::FoldAndOfICmps(Instruction &I,
     break;
   case ICmpInst::ICMP_SGT:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:         // (X s> 13 & X == 15) -> X == 15
     case ICmpInst::ICMP_SGT:        // (X s> 13 & X s> 15) -> X s> 15
       return ReplaceInstUsesWith(I, RHS);
@@ -4544,10 +4544,10 @@ Instruction *InstCombiner::FoldOrOfICmps(Instruction &I,
   assert(LHSCst != RHSCst && "Compares not folded above?");
 
   switch (LHSCC) {
-  default: LLVM_UNREACHABLE("Unknown integer condition code!");
+  default: llvm_unreachable("Unknown integer condition code!");
   case ICmpInst::ICMP_EQ:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:
       if (LHSCst == SubOne(RHSCst, Context)) {
         // (X == 13 | X == 14) -> X-13 <u 2
@@ -4570,7 +4570,7 @@ Instruction *InstCombiner::FoldOrOfICmps(Instruction &I,
     break;
   case ICmpInst::ICMP_NE:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:          // (X != 13 | X == 15) -> X != 13
     case ICmpInst::ICMP_UGT:         // (X != 13 | X u> 15) -> X != 13
     case ICmpInst::ICMP_SGT:         // (X != 13 | X s> 15) -> X != 13
@@ -4583,7 +4583,7 @@ Instruction *InstCombiner::FoldOrOfICmps(Instruction &I,
     break;
   case ICmpInst::ICMP_ULT:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:         // (X u< 13 | X == 14) -> no change
       break;
     case ICmpInst::ICMP_UGT:        // (X u< 13 | X u> 15) -> (X-13) u> 2
@@ -4604,7 +4604,7 @@ Instruction *InstCombiner::FoldOrOfICmps(Instruction &I,
     break;
   case ICmpInst::ICMP_SLT:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:         // (X s< 13 | X == 14) -> no change
       break;
     case ICmpInst::ICMP_SGT:        // (X s< 13 | X s> 15) -> (X-13) s> 2
@@ -4625,7 +4625,7 @@ Instruction *InstCombiner::FoldOrOfICmps(Instruction &I,
     break;
   case ICmpInst::ICMP_UGT:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:         // (X u> 13 | X == 15) -> X u> 13
     case ICmpInst::ICMP_UGT:        // (X u> 13 | X u> 15) -> X u> 13
       return ReplaceInstUsesWith(I, LHS);
@@ -4640,7 +4640,7 @@ Instruction *InstCombiner::FoldOrOfICmps(Instruction &I,
     break;
   case ICmpInst::ICMP_SGT:
     switch (RHSCC) {
-    default: LLVM_UNREACHABLE("Unknown integer condition code!");
+    default: llvm_unreachable("Unknown integer condition code!");
     case ICmpInst::ICMP_EQ:         // (X s> 13 | X == 15) -> X > 13
     case ICmpInst::ICMP_SGT:        // (X s> 13 | X s> 15) -> X > 13
       return ReplaceInstUsesWith(I, LHS);
@@ -5717,7 +5717,7 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
   
   ICmpInst::Predicate Pred;
   switch (I.getPredicate()) {
-  default: LLVM_UNREACHABLE("Unexpected predicate!");
+  default: llvm_unreachable("Unexpected predicate!");
   case FCmpInst::FCMP_UEQ:
   case FCmpInst::FCMP_OEQ:
     Pred = ICmpInst::ICMP_EQ;
@@ -5811,7 +5811,7 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
       // the compare predicate and sometimes the value.  RHSC is rounded towards
       // zero at this point.
       switch (Pred) {
-      default: LLVM_UNREACHABLE("Unexpected integer comparison!");
+      default: llvm_unreachable("Unexpected integer comparison!");
       case ICmpInst::ICMP_NE:  // (float)int != 4.4   --> true
         return ReplaceInstUsesWith(I, Context->getConstantIntTrue());
       case ICmpInst::ICMP_EQ:  // (float)int == 4.4   --> false
@@ -5888,7 +5888,7 @@ Instruction *InstCombiner::visitFCmpInst(FCmpInst &I) {
   // Simplify 'fcmp pred X, X'
   if (Op0 == Op1) {
     switch (I.getPredicate()) {
-    default: LLVM_UNREACHABLE("Unknown predicate!");
+    default: llvm_unreachable("Unknown predicate!");
     case FCmpInst::FCMP_UEQ:    // True if unordered or equal
     case FCmpInst::FCMP_UGE:    // True if unordered, greater than, or equal
     case FCmpInst::FCMP_ULE:    // True if unordered, less than, or equal
@@ -6007,7 +6007,7 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) {
   // icmp's with boolean values can always be turned into bitwise operations
   if (Ty == Type::Int1Ty) {
     switch (I.getPredicate()) {
-    default: LLVM_UNREACHABLE("Invalid icmp instruction!");
+    default: llvm_unreachable("Invalid icmp instruction!");
     case ICmpInst::ICMP_EQ: {               // icmp eq i1 A, B -> ~(A^B)
       Instruction *Xor = BinaryOperator::CreateXor(Op0, Op1, I.getName()+"tmp");
       InsertNewInstBefore(Xor, I);
@@ -6153,7 +6153,7 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) {
     // Based on the range information we know about the LHS, see if we can
     // simplify this comparison.  For example, (x&4) < 8  is always true.
     switch (I.getPredicate()) {
-    default: LLVM_UNREACHABLE("Unknown icmp opcode!");
+    default: llvm_unreachable("Unknown icmp opcode!");
     case ICmpInst::ICMP_EQ:
       if (Op0Max.ult(Op1Min) || Op0Min.ugt(Op1Max))
         return ReplaceInstUsesWith(I, Context->getConstantIntFalse());
@@ -6662,7 +6662,7 @@ Instruction *InstCombiner::FoldICmpDivCst(ICmpInst &ICI, BinaryOperator *DivI,
 
   Value *X = DivI->getOperand(0);
   switch (Pred) {
-  default: LLVM_UNREACHABLE("Unhandled icmp opcode!");
+  default: llvm_unreachable("Unhandled icmp opcode!");
   case ICmpInst::ICMP_EQ:
     if (LoOverflow && HiOverflow)
       return ReplaceInstUsesWith(ICI, Context->getConstantIntFalse());
@@ -8117,7 +8117,7 @@ Value *InstCombiner::EvaluateInDifferentType(Value *V, const Type *Ty,
   }
   default: 
     // TODO: Can handle more cases here.
-    LLVM_UNREACHABLE("Unreachable!");
+    llvm_unreachable("Unreachable!");
     break;
   }
   
@@ -8329,7 +8329,7 @@ Instruction *InstCombiner::commonIntCastTransforms(CastInst &CI) {
     default:
       // All the others use floating point so we shouldn't actually 
       // get here because of the check above.
-      LLVM_UNREACHABLE("Unknown cast type");
+      llvm_unreachable("Unknown cast type");
     case Instruction::Trunc:
       DoXForm = true;
       break;
@@ -8385,7 +8385,7 @@ Instruction *InstCombiner::commonIntCastTransforms(CastInst &CI) {
 
       assert(Res->getType() == DestTy);
       switch (CI.getOpcode()) {
-      default: LLVM_UNREACHABLE("Unknown cast type!");
+      default: llvm_unreachable("Unknown cast type!");
       case Instruction::Trunc:
         // Just replace this cast with the result.
         return ReplaceInstUsesWith(CI, Res);
@@ -9102,7 +9102,7 @@ static unsigned GetSelectFoldableOperands(Instruction *I) {
 static Constant *GetSelectFoldableConstant(Instruction *I,
                                            LLVMContext *Context) {
   switch (I->getOpcode()) {
-  default: LLVM_UNREACHABLE("This cannot happen!");
+  default: llvm_unreachable("This cannot happen!");
   case Instruction::Add:
   case Instruction::Sub:
   case Instruction::Or:
@@ -9184,7 +9184,7 @@ Instruction *InstCombiner::FoldSelectOpOp(SelectInst &SI, Instruction *TI,
     else
       return BinaryOperator::Create(BO->getOpcode(), NewSI, MatchOp);
   }
-  LLVM_UNREACHABLE("Shouldn't get here");
+  llvm_unreachable("Shouldn't get here");
   return 0;
 }
 
@@ -9226,7 +9226,7 @@ Instruction *InstCombiner::FoldSelectIntoOp(SelectInst &SI, Value *TrueVal,
             NewSel->takeName(TVI);
             if (BinaryOperator *BO = dyn_cast<BinaryOperator>(TVI))
               return BinaryOperator::Create(BO->getOpcode(), FalseVal, NewSel);
-            LLVM_UNREACHABLE("Unknown instruction!!");
+            llvm_unreachable("Unknown instruction!!");
           }
         }
       }
@@ -9255,7 +9255,7 @@ Instruction *InstCombiner::FoldSelectIntoOp(SelectInst &SI, Value *TrueVal,
             NewSel->takeName(FVI);
             if (BinaryOperator *BO = dyn_cast<BinaryOperator>(FVI))
               return BinaryOperator::Create(BO->getOpcode(), TrueVal, NewSel);
-            LLVM_UNREACHABLE("Unknown instruction!!");
+            llvm_unreachable("Unknown instruction!!");
           }
         }
       }