Convert assert(0) to llvm_unreachable

llvm-svn: 149967

5 files changed, 6 insertions, 7 deletions

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
index d2298a0f7d7..7cb56f8fe69 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
@@ -110,7 +110,7 @@ static Value *getFCmpValue(bool isordered, unsigned code,
                            InstCombiner::BuilderTy *Builder) {
   CmpInst::Predicate Pred;
   switch (code) {
-  default: assert(0 && "Illegal FCmp code!");
+  default: llvm_unreachable("Illegal FCmp code!");
   case 0: Pred = isordered ? FCmpInst::FCMP_ORD : FCmpInst::FCMP_UNO; break;
   case 1: Pred = isordered ? FCmpInst::FCMP_OGT : FCmpInst::FCMP_UGT; break;
   case 2: Pred = isordered ? FCmpInst::FCMP_OEQ : FCmpInst::FCMP_UEQ; break;
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp b/llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp
index a66e6508952..b31049e59f1 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp
@@ -199,7 +199,7 @@ static Value *GetShiftedValue(Value *V, unsigned NumBits, bool isLeftShift,
   IC.Worklist.Add(I);
 
   switch (I->getOpcode()) {
-  default: assert(0 && "Inconsistency with CanEvaluateShifted");
+  default: llvm_unreachable("Inconsistency with CanEvaluateShifted");
   case Instruction::And:
   case Instruction::Or:
   case Instruction::Xor:
diff --git a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index b8ead89a8fa..150868d5776 100644
--- a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -703,8 +703,7 @@ static uint64_t ValueForPoison(uint64_t PoisonByte, size_t ShadowRedzoneSize) {
   if (ShadowRedzoneSize == 4)
     return (PoisonByte << 24) + (PoisonByte << 16) +
         (PoisonByte << 8) + (PoisonByte);
-  assert(0 && "ShadowRedzoneSize is either 1, 2 or 4");
-  return 0;
+  llvm_unreachable("ShadowRedzoneSize is either 1, 2 or 4");
 }
 
 static void PoisonShadowPartialRightRedzone(uint8_t *Shadow,
diff --git a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
index 8729019705f..c8c53606015 100644
--- a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -224,7 +224,7 @@ static bool isRemovable(Instruction *I) {
 
   IntrinsicInst *II = cast<IntrinsicInst>(I);
   switch (II->getIntrinsicID()) {
-  default: assert(0 && "doesn't pass 'hasMemoryWrite' predicate");
+  default: llvm_unreachable("doesn't pass 'hasMemoryWrite' predicate");
   case Intrinsic::lifetime_end:
     // Never remove dead lifetime_end's, e.g. because it is followed by a
     // free.
@@ -268,7 +268,7 @@ static Value *getStoredPointerOperand(Instruction *I) {
 
   IntrinsicInst *II = cast<IntrinsicInst>(I);
   switch (II->getIntrinsicID()) {
-  default: assert(false && "Unexpected intrinsic!");
+  default: llvm_unreachable("Unexpected intrinsic!");
   case Intrinsic::init_trampoline:
     return II->getArgOperand(0);
   }
diff --git a/llvm/lib/Transforms/Utils/CmpInstAnalysis.cpp b/llvm/lib/Transforms/Utils/CmpInstAnalysis.cpp
index 8983e0c4f05..9b099150a7a 100644
--- a/llvm/lib/Transforms/Utils/CmpInstAnalysis.cpp
+++ b/llvm/lib/Transforms/Utils/CmpInstAnalysis.cpp
@@ -72,7 +72,7 @@ unsigned llvm::getICmpCode(const ICmpInst *ICI, bool InvertPred) {
 Value *llvm::getICmpValue(bool Sign, unsigned Code, Value *LHS, Value *RHS,
                           CmpInst::Predicate &NewICmpPred) {
   switch (Code) {
-    default: assert(0 && "Illegal ICmp code!");
+    default: llvm_unreachable("Illegal ICmp code!");
     case 0: // False.
       return ConstantInt::get(CmpInst::makeCmpResultType(LHS->getType()), 0);
     case 1: NewICmpPred = Sign ? ICmpInst::ICMP_SGT : ICmpInst::ICMP_UGT; break;