Use twines to simplify calls to report_fatal_error. For code size and readability.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100756 91177308-0d34-0410-b5e6-96231b3b80d8

11 files changed, 69 insertions, 135 deletions

diff --git a/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp b/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
index 1d03f58..a3a408f 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
@@ -76,7 +76,7 @@ void AsmPrinter::EmitInlineAsm(StringRef Str, unsigned LocCookie) const {
   OwningPtr<TargetAsmParser> TAP(TM.getTarget().createAsmParser(Parser));
   if (!TAP)
     report_fatal_error("Inline asm not supported by this streamer because"
-                      " we don't have an asm parser for this target\n");
+                       " we don't have an asm parser for this target\n");
   Parser.setTargetParser(*TAP.get());
 
   // Don't implicitly switch to the text section before the asm.
@@ -178,8 +178,8 @@ void AsmPrinter::EmitInlineAsm(const MachineInstr *MI) const {
       case '(':             // $( -> same as GCC's { character.
         ++LastEmitted;      // Consume '(' character.
         if (CurVariant != -1)
-          report_fatal_error("Nested variants found in inline asm string: '"
-                            + std::string(AsmStr) + "'");
+          report_fatal_error("Nested variants found in inline asm string: '" +
+                             Twine(AsmStr) + "'");
         CurVariant = 0;     // We're in the first variant now.
         break;
       case '|':
@@ -213,8 +213,8 @@ void AsmPrinter::EmitInlineAsm(const MachineInstr *MI) const {
         const char *StrStart = LastEmitted;
         const char *StrEnd = strchr(StrStart, '}');
         if (StrEnd == 0)
-          report_fatal_error(Twine("Unterminated ${:foo} operand in inline asm"
-                                  " string: '") + Twine(AsmStr) + "'");
+          report_fatal_error("Unterminated ${:foo} operand in inline asm"
+                             " string: '" + Twine(AsmStr) + "'");
         
         std::string Val(StrStart, StrEnd);
         PrintSpecial(MI, OS, Val.c_str());
@@ -228,8 +228,8 @@ void AsmPrinter::EmitInlineAsm(const MachineInstr *MI) const {
       
       unsigned Val;
       if (StringRef(IDStart, IDEnd-IDStart).getAsInteger(10, Val))
-        report_fatal_error("Bad $ operand number in inline asm string: '" 
-                          + std::string(AsmStr) + "'");
+        report_fatal_error("Bad $ operand number in inline asm string: '" +
+                           Twine(AsmStr) + "'");
       LastEmitted = IDEnd;
       
       char Modifier[2] = { 0, 0 };
@@ -241,21 +241,21 @@ void AsmPrinter::EmitInlineAsm(const MachineInstr *MI) const {
           ++LastEmitted;    // Consume ':' character.
           if (*LastEmitted == 0)
             report_fatal_error("Bad ${:} expression in inline asm string: '" +
-                              std::string(AsmStr) + "'");
+                               Twine(AsmStr) + "'");
           
           Modifier[0] = *LastEmitted;
           ++LastEmitted;    // Consume modifier character.
         }
         
         if (*LastEmitted != '}')
-          report_fatal_error("Bad ${} expression in inline asm string: '" 
-                            + std::string(AsmStr) + "'");
+          report_fatal_error("Bad ${} expression in inline asm string: '" +
+                             Twine(AsmStr) + "'");
         ++LastEmitted;    // Consume '}' character.
       }
       
       if (Val >= NumOperands-1)
-        report_fatal_error("Invalid $ operand number in inline asm string: '" 
-                          + std::string(AsmStr) + "'");
+        report_fatal_error("Invalid $ operand number in inline asm string: '" +
+                           Twine(AsmStr) + "'");
       
       // Okay, we finally have a value number.  Ask the target to print this
       // operand!
diff --git a/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp b/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp
index 25cde4b..a8c3c7b 100644
--- a/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp
@@ -109,13 +109,11 @@ void OcamlGCMetadataPrinter::finishAssembly(AsmPrinter &AP) {
 
     uint64_t FrameSize = FI.getFrameSize();
     if (FrameSize >= 1<<16) {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "Function '" << FI.getFunction().getName()
-           << "' is too large for the ocaml GC! "
-           << "Frame size " << FrameSize << " >= 65536.\n";
-      Msg << "(" << uintptr_t(&FI) << ")";
-      report_fatal_error(Msg.str()); // Very rude!
+      // Very rude!
+      report_fatal_error("Function '" + FI.getFunction().getName() +
+                         "' is too large for the ocaml GC! "
+                         "Frame size " + Twine(FrameSize) + ">= 65536.\n"
+                         "(" + Twine(uintptr_t(&FI)) + ")");
     }
 
     AP.OutStreamer.AddComment("live roots for " +
@@ -125,12 +123,10 @@ void OcamlGCMetadataPrinter::finishAssembly(AsmPrinter &AP) {
     for (GCFunctionInfo::iterator J = FI.begin(), JE = FI.end(); J != JE; ++J) {
       size_t LiveCount = FI.live_size(J);
       if (LiveCount >= 1<<16) {
-        std::string msg;
-        raw_string_ostream Msg(msg);
-        Msg << "Function '" << FI.getFunction().getName()
-             << "' is too large for the ocaml GC! "
-             << "Live root count " << LiveCount << " >= 65536.";
-        report_fatal_error(Msg.str()); // Very rude!
+        // Very rude!
+        report_fatal_error("Function '" + FI.getFunction().getName() +
+                           "' is too large for the ocaml GC! "
+                           "Live root count "+Twine(LiveCount)+" >= 65536.");
       }
 
       AP.OutStreamer.EmitSymbolValue(J->Label, IntPtrSize, 0);
diff --git a/lib/CodeGen/ELFWriter.cpp b/lib/CodeGen/ELFWriter.cpp
index 651e7e9..fe55b32 100644
--- a/lib/CodeGen/ELFWriter.cpp
+++ b/lib/CodeGen/ELFWriter.cpp
@@ -572,10 +572,8 @@ CstExprResTy ELFWriter::ResolveConstantExpr(const Constant *CV) {
   }
   }
 
-  std::string msg(CE->getOpcodeName());
-  raw_string_ostream ErrorMsg(msg);
-  ErrorMsg << ": Unsupported ConstantExpr type";
-  report_fatal_error(ErrorMsg.str());
+  report_fatal_error(CE->getOpcodeName() +
+                     StringRef(": Unsupported ConstantExpr type"));
 
   return std::make_pair(CV, 0); // silence warning
 }
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index e8e9498..0d65a24 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -5334,8 +5334,8 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
             (OpInfo.ConstraintVT.getSizeInBits() !=
              Input.ConstraintVT.getSizeInBits())) {
           report_fatal_error("Unsupported asm: input constraint"
-                            " with a matching output constraint of incompatible"
-                            " type!");
+                             " with a matching output constraint of"
+                             " incompatible type!");
         }
         Input.ConstraintVT = OpInfo.ConstraintVT;
       }
@@ -5446,8 +5446,8 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
       // Copy the output from the appropriate register.  Find a register that
       // we can use.
       if (OpInfo.AssignedRegs.Regs.empty())
-        report_fatal_error("Couldn't allocate output reg for"
-                          " constraint '" + OpInfo.ConstraintCode + "'!");
+        report_fatal_error("Couldn't allocate output reg for constraint '" +
+                           Twine(OpInfo.ConstraintCode) + "'!");
 
       // If this is an indirect operand, store through the pointer after the
       // asm.
@@ -5547,8 +5547,8 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
         TLI.LowerAsmOperandForConstraint(InOperandVal, OpInfo.ConstraintCode[0],
                                          hasMemory, Ops, DAG);
         if (Ops.empty())
-          report_fatal_error("Invalid operand for inline asm"
-                            " constraint '" + OpInfo.ConstraintCode + "'!");
+          report_fatal_error("Invalid operand for inline asm constraint '" +
+                             Twine(OpInfo.ConstraintCode) + "'!");
 
         // Add information to the INLINEASM node to know about this input.
         unsigned ResOpType =
@@ -5581,8 +5581,8 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
       // Copy the input into the appropriate registers.
       if (OpInfo.AssignedRegs.Regs.empty() ||
           !OpInfo.AssignedRegs.areValueTypesLegal())
-        report_fatal_error("Couldn't allocate input reg for"
-                          " constraint '"+ OpInfo.ConstraintCode +"'!");
+        report_fatal_error("Couldn't allocate input reg for constraint '" +
+                           Twine(OpInfo.ConstraintCode) + "'!");
 
       OpInfo.AssignedRegs.getCopyToRegs(InOperandVal, DAG, getCurDebugLoc(),
                                         Chain, &Flag);
diff --git a/lib/ExecutionEngine/JIT/JITMemoryManager.cpp b/lib/ExecutionEngine/JIT/JITMemoryManager.cpp
index 624fbb4..653e6f1 100644
--- a/lib/ExecutionEngine/JIT/JITMemoryManager.cpp
+++ b/lib/ExecutionEngine/JIT/JITMemoryManager.cpp
@@ -15,6 +15,7 @@
 #include "llvm/ExecutionEngine/JITMemoryManager.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/ADT/Twine.h"
 #include "llvm/GlobalValue.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/Compiler.h"
@@ -22,12 +23,9 @@
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/System/Memory.h"
-#include <map>
 #include <vector>
 #include <cassert>
 #include <climits>
-#include <cstdio>
-#include <cstdlib>
 #include <cstring>
 using namespace llvm;
 
@@ -615,7 +613,7 @@ sys::MemoryBlock DefaultJITMemoryManager::allocateNewSlab(size_t size) {
   sys::MemoryBlock B = sys::Memory::AllocateRWX(size, LastSlabPtr, &ErrMsg);
   if (B.base() == 0) {
     report_fatal_error("Allocation failed when allocating new memory in the"
-                      " JIT\n" + ErrMsg);
+                       " JIT\n" + Twine(ErrMsg));
   }
   LastSlab = B;
   ++NumSlabs;
diff --git a/lib/Target/Alpha/AlphaRegisterInfo.cpp b/lib/Target/Alpha/AlphaRegisterInfo.cpp
index e7ffff1..cd77724 100644
--- a/lib/Target/Alpha/AlphaRegisterInfo.cpp
+++ b/lib/Target/Alpha/AlphaRegisterInfo.cpp
@@ -248,10 +248,7 @@ void AlphaRegisterInfo::emitPrologue(MachineFunction &MF) const {
     BuildMI(MBB, MBBI, dl, TII.get(Alpha::LDA), Alpha::R30)
       .addImm(getLower16(NumBytes)).addReg(Alpha::R30);
   } else {
-    std::string msg;
-    raw_string_ostream Msg(msg); 
-    Msg << "Too big a stack frame at " << NumBytes;
-    report_fatal_error(Msg.str());
+    report_fatal_error("Too big a stack frame at " + Twine(NumBytes));
   }
 
   //now if we need to, save the old FP and set the new
@@ -300,10 +297,7 @@ void AlphaRegisterInfo::emitEpilogue(MachineFunction &MF,
       BuildMI(MBB, MBBI, dl, TII.get(Alpha::LDA), Alpha::R30)
         .addImm(getLower16(NumBytes)).addReg(Alpha::R30);
     } else {
-      std::string msg;
-      raw_string_ostream Msg(msg); 
-      Msg << "Too big a stack frame at " << NumBytes;
-      report_fatal_error(Msg.str());
+      report_fatal_error("Too big a stack frame at " + Twine(NumBytes));
     }
   }
 }
diff --git a/lib/Target/CellSPU/SPUISelDAGToDAG.cpp b/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
index 8fc8dd3..c1e3dd2 100644
--- a/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
+++ b/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
@@ -194,11 +194,8 @@ namespace {
 
 #ifndef NDEBUG
     if (retval == 0) {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "SPUISelDAGToDAG.cpp: getValueTypeMapEntry returns NULL for "
-           << VT.getEVTString();
-      report_fatal_error(Msg.str());
+      report_fatal_error("SPUISelDAGToDAG.cpp: getValueTypeMapEntry returns"
+                         "NULL for " + Twine(VT.getEVTString()));
     }
 #endif
 
@@ -915,11 +912,8 @@ SPUDAGToDAGISel::Select(SDNode *N) {
     const valtype_map_s *vtm = getValueTypeMapEntry(VT);
 
     if (vtm->ldresult_ins == 0) {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "LDRESULT for unsupported type: "
-           << VT.getEVTString();
-      report_fatal_error(Msg.str());
+      report_fatal_error("LDRESULT for unsupported type: " +
+                         Twine(VT.getEVTString()));
     }
 
     Opc = vtm->ldresult_ins;
diff --git a/lib/Target/CellSPU/SPUISelLowering.cpp b/lib/Target/CellSPU/SPUISelLowering.cpp
index 1a0ab9f..286e9ab 100644
--- a/lib/Target/CellSPU/SPUISelLowering.cpp
+++ b/lib/Target/CellSPU/SPUISelLowering.cpp
@@ -71,11 +71,8 @@ namespace {
 
 #ifndef NDEBUG
     if (retval == 0) {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "getValueTypeMapEntry returns NULL for "
-           << VT.getEVTString();
-      report_fatal_error(Msg.str());
+      report_fatal_error("getValueTypeMapEntry returns NULL for " +
+                         Twine(VT.getEVTString()));
     }
 #endif
 
@@ -714,12 +711,9 @@ LowerLOAD(SDValue Op, SelectionDAG &DAG, const SPUSubtarget *ST) {
   case ISD::POST_DEC:
   case ISD::LAST_INDEXED_MODE:
     {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "LowerLOAD: Got a LoadSDNode with an addr mode other than "
-            "UNINDEXED\n";
-      Msg << (unsigned) LN->getAddressingMode();
-      report_fatal_error(Msg.str());
+      report_fatal_error("LowerLOAD: Got a LoadSDNode with an addr mode other "
+                         "than UNINDEXED\n" +
+                         Twine((unsigned)LN->getAddressingMode()));
       /*NOTREACHED*/
     }
   }
@@ -884,12 +878,9 @@ LowerSTORE(SDValue Op, SelectionDAG &DAG, const SPUSubtarget *ST) {
   case ISD::POST_DEC:
   case ISD::LAST_INDEXED_MODE:
     {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "LowerLOAD: Got a LoadSDNode with an addr mode other than "
-            "UNINDEXED\n";
-      Msg << (unsigned) SN->getAddressingMode();
-      report_fatal_error(Msg.str());
+      report_fatal_error("LowerLOAD: Got a LoadSDNode with an addr mode other "
+                         "than UNINDEXED\n" +
+                         Twine((unsigned)SN->getAddressingMode()));
       /*NOTREACHED*/
     }
   }
@@ -1038,13 +1029,9 @@ SPUTargetLowering::LowerFormalArguments(SDValue Chain,
       const TargetRegisterClass *ArgRegClass;
 
       switch (ObjectVT.getSimpleVT().SimpleTy) {
-      default: {
-        std::string msg;
-        raw_string_ostream Msg(msg);
-        Msg << "LowerFormalArguments Unhandled argument type: "
-             << ObjectVT.getEVTString();
-        report_fatal_error(Msg.str());
-      }
+      default:
+        report_fatal_error("LowerFormalArguments Unhandled argument type: " +
+                           Twine(ObjectVT.getEVTString()));
       case MVT::i8:
         ArgRegClass = &SPU::R8CRegClass;
         break;
@@ -1581,14 +1568,10 @@ LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) {
   uint64_t SplatBits = APSplatBits.getZExtValue();
 
   switch (VT.getSimpleVT().SimpleTy) {
-  default: {
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "CellSPU: Unhandled VT in LowerBUILD_VECTOR, VT = "
-         << VT.getEVTString();
-    report_fatal_error(Msg.str());
+  default:
+    report_fatal_error("CellSPU: Unhandled VT in LowerBUILD_VECTOR, VT = " +
+                       Twine(VT.getEVTString()));
     /*NOTREACHED*/
-  }
   case MVT::v4f32: {
     uint32_t Value32 = uint32_t(SplatBits);
     assert(SplatBitSize == 32
diff --git a/lib/Target/CellSPU/SPURegisterInfo.cpp b/lib/Target/CellSPU/SPURegisterInfo.cpp
index 71e2973..9a9c9f7 100644
--- a/lib/Target/CellSPU/SPURegisterInfo.cpp
+++ b/lib/Target/CellSPU/SPURegisterInfo.cpp
@@ -509,10 +509,7 @@ void SPURegisterInfo::emitPrologue(MachineFunction &MF) const
         .addReg(SPU::R2)
         .addReg(SPU::R1);
     } else {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "Unhandled frame size: " << FrameSize;
-      report_fatal_error(Msg.str());
+      report_fatal_error("Unhandled frame size: " + Twine(FrameSize));
     }
 
     if (hasDebugInfo) {
@@ -605,10 +602,7 @@ SPURegisterInfo::emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const
         .addReg(SPU::R2)
         .addReg(SPU::R1);
     } else {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "Unhandled frame size: " << FrameSize;
-      report_fatal_error(Msg.str());
+      report_fatal_error("Unhandled frame size: " + Twine(FrameSize));
     }
    }
 }
diff --git a/lib/Target/XCore/XCoreRegisterInfo.cpp b/lib/Target/XCore/XCoreRegisterInfo.cpp
index f5b0c4e..0db867f 100644
--- a/lib/Target/XCore/XCoreRegisterInfo.cpp
+++ b/lib/Target/XCore/XCoreRegisterInfo.cpp
@@ -225,12 +225,9 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
     unsigned FramePtr = XCore::R10;
     
     if (!isUs) {
-      if (!RS) {
-        std::string msg;
-        raw_string_ostream Msg(msg);
-        Msg << "eliminateFrameIndex Frame size too big: " << Offset;
-        report_fatal_error(Msg.str());
-      }
+      if (!RS)
+        report_fatal_error("eliminateFrameIndex Frame size too big: " +
+                           Twine(Offset));
       unsigned ScratchReg = RS->scavengeRegister(XCore::GRRegsRegisterClass, II,
                                                  SPAdj);
       loadConstant(MBB, II, ScratchReg, Offset, dl);
@@ -278,12 +275,9 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
     }
   } else {
     bool isU6 = isImmU6(Offset);
-    if (!isU6 && !isImmU16(Offset)) {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "eliminateFrameIndex Frame size too big: " << Offset;
-      report_fatal_error(Msg.str());
-    }
+    if (!isU6 && !isImmU16(Offset))
+      report_fatal_error("eliminateFrameIndex Frame size too big: " +
+                         Twine(Offset));
 
     switch (MI.getOpcode()) {
     int NewOpcode;
@@ -360,10 +354,7 @@ loadConstant(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
   // TODO use mkmsk if possible.
   if (!isImmU16(Value)) {
     // TODO use constant pool.
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "loadConstant value too big " << Value;
-    report_fatal_error(Msg.str());
+    report_fatal_error("loadConstant value too big " + Twine(Value));
   }
   int Opcode = isImmU6(Value) ? XCore::LDC_ru6 : XCore::LDC_lru6;
   BuildMI(MBB, I, dl, TII.get(Opcode), DstReg).addImm(Value);
@@ -375,12 +366,8 @@ storeToStack(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
   assert(Offset%4 == 0 && "Misaligned stack offset");
   Offset/=4;
   bool isU6 = isImmU6(Offset);
-  if (!isU6 && !isImmU16(Offset)) {
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "storeToStack offset too big " << Offset;
-    report_fatal_error(Msg.str());
-  }
+  if (!isU6 && !isImmU16(Offset))
+    report_fatal_error("storeToStack offset too big " + Twine(Offset));
   int Opcode = isU6 ? XCore::STWSP_ru6 : XCore::STWSP_lru6;
   BuildMI(MBB, I, dl, TII.get(Opcode))
     .addReg(SrcReg)
@@ -393,12 +380,8 @@ loadFromStack(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
   assert(Offset%4 == 0 && "Misaligned stack offset");
   Offset/=4;
   bool isU6 = isImmU6(Offset);
-  if (!isU6 && !isImmU16(Offset)) {
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "loadFromStack offset too big " << Offset;
-    report_fatal_error(Msg.str());
-  }
+  if (!isU6 && !isImmU16(Offset))
+    report_fatal_error("loadFromStack offset too big " + Twine(Offset));
   int Opcode = isU6 ? XCore::LDWSP_ru6 : XCore::LDWSP_lru6;
   BuildMI(MBB, I, dl, TII.get(Opcode), DstReg)
     .addImm(Offset);
@@ -425,10 +408,7 @@ void XCoreRegisterInfo::emitPrologue(MachineFunction &MF) const {
 
   if (!isU6 && !isImmU16(FrameSize)) {
     // FIXME could emit multiple instructions.
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "emitPrologue Frame size too big: " << FrameSize;
-    report_fatal_error(Msg.str());
+    report_fatal_error("emitPrologue Frame size too big: " + Twine(FrameSize));
   }
   bool emitFrameMoves = needsFrameMoves(MF);
 
@@ -549,10 +529,7 @@ void XCoreRegisterInfo::emitEpilogue(MachineFunction &MF,
 
   if (!isU6 && !isImmU16(FrameSize)) {
     // FIXME could emit multiple instructions.
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "emitEpilogue Frame size too big: " << FrameSize;
-    report_fatal_error(Msg.str());
+    report_fatal_error("emitEpilogue Frame size too big: " + Twine(FrameSize));
   }
 
   if (FrameSize) {
diff --git a/lib/VMCore/PassManager.cpp b/lib/VMCore/PassManager.cpp
index 003ff59..b28fdeb 100644
--- a/lib/VMCore/PassManager.cpp
+++ b/lib/VMCore/PassManager.cpp
@@ -1294,7 +1294,7 @@ bool FunctionPassManager::run(Function &F) {
   if (F.isMaterializable()) {
     std::string errstr;
     if (F.Materialize(&errstr))
-      report_fatal_error("Error reading bitcode file: " + errstr);
+      report_fatal_error("Error reading bitcode file: " + Twine(errstr));
   }
   return FPM->run(F);
 }