Convert assert(0) to llvm_unreachable

llvm-svn: 149816

4 files changed, 10 insertions, 10 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
index c1669469899..90d511cbab0 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
@@ -25,6 +25,7 @@
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/Support/Dwarf.h"
+#include "llvm/Support/ErrorHandling.h"
 using namespace llvm;
 
 //===----------------------------------------------------------------------===//
@@ -110,7 +111,7 @@ unsigned AsmPrinter::GetSizeOfEncodedValue(unsigned Encoding) const {
     return 0;
   
   switch (Encoding & 0x07) {
-  default: assert(0 && "Invalid encoded value.");
+  default: llvm_unreachable("Invalid encoded value.");
   case dwarf::DW_EH_PE_absptr: return TM.getTargetData()->getPointerSize();
   case dwarf::DW_EH_PE_udata2: return 2;
   case dwarf::DW_EH_PE_udata4: return 4;
diff --git a/llvm/lib/CodeGen/AsmPrinter/DIE.cpp b/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
index 331b07cbf3a..3776848e3f4 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
@@ -310,7 +310,7 @@ unsigned DIEBlock::ComputeSize(AsmPrinter *AP) {
 ///
 void DIEBlock::EmitValue(AsmPrinter *Asm, unsigned Form) const {
   switch (Form) {
-  default: assert(0 && "Improper form for block");    break;
+  default: llvm_unreachable("Improper form for block");
   case dwarf::DW_FORM_block1: Asm->EmitInt8(Size);    break;
   case dwarf::DW_FORM_block2: Asm->EmitInt16(Size);   break;
   case dwarf::DW_FORM_block4: Asm->EmitInt32(Size);   break;
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 9c3825f0460..9be6c7e4654 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -389,8 +389,7 @@ DIE *DwarfDebug::constructInlinedScopeDIE(CompileUnit *TheCU,
   const MCSymbol *EndLabel = getLabelAfterInsn(RI->second);
 
   if (StartLabel == 0 || EndLabel == 0) {
-    assert(0 && "Unexpected Start and End labels for a inlined scope!");
-    return 0;
+    llvm_unreachable("Unexpected Start and End labels for a inlined scope!");
   }
   assert(StartLabel->isDefined() &&
          "Invalid starting label for an inlined scope!");
@@ -956,8 +955,7 @@ static DotDebugLocEntry getDebugLocEntry(AsmPrinter *Asm,
   if (MI->getOperand(0).isCImm())
     return DotDebugLocEntry(FLabel, SLabel, MI->getOperand(0).getCImm());
 
-  assert(0 && "Unexpected 3 operand DBG_VALUE instruction!");
-  return DotDebugLocEntry();
+  llvm_unreachable("Unexpected 3 operand DBG_VALUE instruction!");
 }
 
 /// collectVariableInfo - Find variables for each lexical scope.
@@ -1470,7 +1468,7 @@ void DwarfDebug::recordSourceLine(unsigned Line, unsigned Col, const MDNode *S,
       Fn = DB.getFilename();
       Dir = DB.getDirectory();
     } else
-      assert(0 && "Unexpected scope info");
+      llvm_unreachable("Unexpected scope info");
 
     Src = GetOrCreateSourceID(Fn, Dir);
   }
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfException.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfException.cpp
index bf7f7eec9fe..70cc2e56b3e 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -31,6 +31,7 @@
 #include "llvm/Target/TargetOptions.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Support/Dwarf.h"
+#include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FormattedStream.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringExtras.h"
@@ -714,17 +715,17 @@ void DwarfException::EmitExceptionTable() {
 /// EndModule - Emit all exception information that should come after the
 /// content.
 void DwarfException::EndModule() {
-  assert(0 && "Should be implemented");
+  llvm_unreachable("Should be implemented");
 }
 
 /// BeginFunction - Gather pre-function exception information. Assumes it's
 /// being emitted immediately after the function entry point.
 void DwarfException::BeginFunction(const MachineFunction *MF) {
-  assert(0 && "Should be implemented");
+  llvm_unreachable("Should be implemented");
 }
 
 /// EndFunction - Gather and emit post-function exception information.
 ///
 void DwarfException::EndFunction() {
-  assert(0 && "Should be implemented");
+  llvm_unreachable("Should be implemented");
 }