Convert assert(0) to llvm_unreachable

llvm-svn: 149961

4 files changed, 6 insertions, 8 deletions

diff --git a/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp b/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
index 7a8739ab1a1..000d6d412ec 100644
--- a/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
@@ -174,7 +174,7 @@ void PPCInstPrinter::printcrbitm(const MCInst *MI, unsigned OpNo,
   unsigned CCReg = MI->getOperand(OpNo).getReg();
   unsigned RegNo;
   switch (CCReg) {
-  default: assert(0 && "Unknown CR register");
+  default: llvm_unreachable("Unknown CR register");
   case PPC::CR0: RegNo = 0; break;
   case PPC::CR1: RegNo = 1; break;
   case PPC::CR2: RegNo = 2; break;
diff --git a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
index 7b8dfa34085..02dad4596a1 100644
--- a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
+++ b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
@@ -92,14 +92,13 @@ public:
                             const MCInstFragment *DF,
                             const MCAsmLayout &Layout) const {
     // FIXME.
-    assert(0 && "relaxInstruction() unimplemented");
-    return false;
+    llvm_unreachable("relaxInstruction() unimplemented");
   }
 
 
   void relaxInstruction(const MCInst &Inst, MCInst &Res) const {
     // FIXME.
-    assert(0 && "relaxInstruction() unimplemented");
+    llvm_unreachable("relaxInstruction() unimplemented");
   }
 
   bool writeNopData(uint64_t Count, MCObjectWriter *OW) const {
@@ -128,7 +127,7 @@ namespace {
 
     void applyFixup(const MCFixup &Fixup, char *Data, unsigned DataSize,
                     uint64_t Value) const {
-      assert(0 && "UNIMP");
+      llvm_unreachable("UNIMP");
     }
 
     MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index ddfb9127bea..1231afc116a 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -4578,8 +4578,7 @@ void PPCTargetLowering::ReplaceNodeResults(SDNode *N,
   DebugLoc dl = N->getDebugLoc();
   switch (N->getOpcode()) {
   default:
-    assert(false && "Do not know how to custom type legalize this operation!");
-    return;
+    llvm_unreachable("Do not know how to custom type legalize this operation!");
   case ISD::VAARG: {
     if (!TM.getSubtarget<PPCSubtarget>().isSVR4ABI()
         || TM.getSubtarget<PPCSubtarget>().isPPC64())
diff --git a/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp b/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
index ff6ebbad972..276edcb69d1 100644
--- a/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
+++ b/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
@@ -140,7 +140,7 @@ void llvm::LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
     switch (MO.getType()) {
     default:
       MI->dump();
-      assert(0 && "unknown operand type");
+      llvm_unreachable("unknown operand type");
     case MachineOperand::MO_Register:
       assert(!MO.getSubReg() && "Subregs should be eliminated!");
       MCOp = MCOperand::CreateReg(MO.getReg());