reindent this whole file and do a variety of stylistic cleanups.

This code is still a long way from following best practices.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129140 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1400 insertions, 1422 deletions

diff --git a/examples/ExceptionDemo/ExceptionDemo.cpp b/examples/ExceptionDemo/ExceptionDemo.cpp
index e4fd0dbe49..f2203a72b6 100644
--- a/examples/ExceptionDemo/ExceptionDemo.cpp
+++ b/examples/ExceptionDemo/ExceptionDemo.cpp
@@ -1,12 +1,11 @@
-//===-- examples/ExceptionDemo/ExceptionDemo.cpp - 
-//                      An example use of the llvm Exception mechanism --===//
+//===-- ExceptionDemo.cpp - An example using llvm Exceptions --------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===--------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
 //
 // Demo program which implements an example LLVM exception implementation, and
 // shows several test cases including the handling of foreign exceptions.
@@ -46,8 +45,7 @@
 // This code uses code from the llvm compiler-rt project and the llvm 
 // Kaleidoscope project.
 //
-//===--------------------------------------------------------------------===//
-
+//===----------------------------------------------------------------------===//
 
 #include "llvm/LLVMContext.h"
 #include "llvm/DerivedTypes.h"
@@ -64,11 +62,7 @@
 #include "llvm/Support/IRBuilder.h"
 #include "llvm/Support/Dwarf.h"
 
-#include <cstdio>
-#include <string>
 #include <sstream>
-#include <map>
-#include <vector>
 #include <stdexcept>
 
 
@@ -80,8 +74,8 @@
 //     http://refspecs.freestandards.org/abi-eh-1.21.html
 
 extern "C" {
-
-typedef enum {
+  
+  typedef enum {
     _URC_NO_REASON = 0,
     _URC_FOREIGN_EXCEPTION_CAUGHT = 1,
     _URC_FATAL_PHASE2_ERROR = 2,
@@ -91,43 +85,43 @@ typedef enum {
     _URC_HANDLER_FOUND = 6,
     _URC_INSTALL_CONTEXT = 7,
     _URC_CONTINUE_UNWIND = 8
-} _Unwind_Reason_Code;
-
-typedef enum {
+  } _Unwind_Reason_Code;
+  
+  typedef enum {
     _UA_SEARCH_PHASE = 1,
     _UA_CLEANUP_PHASE = 2,
     _UA_HANDLER_FRAME = 4,
     _UA_FORCE_UNWIND = 8,
     _UA_END_OF_STACK = 16
-} _Unwind_Action;
-
-struct _Unwind_Exception;
-
-typedef void (*_Unwind_Exception_Cleanup_Fn) (_Unwind_Reason_Code,
-                                              struct _Unwind_Exception *);
-
-struct _Unwind_Exception {
+  } _Unwind_Action;
+  
+  struct _Unwind_Exception;
+  
+  typedef void (*_Unwind_Exception_Cleanup_Fn) (_Unwind_Reason_Code,
+                                                struct _Unwind_Exception *);
+  
+  struct _Unwind_Exception {
     uint64_t exception_class;
     _Unwind_Exception_Cleanup_Fn exception_cleanup;
-
+    
     uintptr_t private_1;    
     uintptr_t private_2;    
-
+    
     // @@@ The IA-64 ABI says that this structure must be double-word aligned.
     //  Taking that literally does not make much sense generically.  Instead 
     //  we provide the maximum alignment required by any type for the machine.
-} __attribute__((__aligned__));
-
-struct _Unwind_Context;
-typedef struct _Unwind_Context* _Unwind_Context_t;
-
-extern const uint8_t* _Unwind_GetLanguageSpecificData (_Unwind_Context_t c);
-extern uintptr_t _Unwind_GetGR (_Unwind_Context_t c, int i);
-extern void _Unwind_SetGR (_Unwind_Context_t c, int i, uintptr_t n);
-extern void _Unwind_SetIP (_Unwind_Context_t, uintptr_t new_value);
-extern uintptr_t _Unwind_GetIP (_Unwind_Context_t context);
-extern uintptr_t _Unwind_GetRegionStart (_Unwind_Context_t context);
-
+  } __attribute__((__aligned__));
+  
+  struct _Unwind_Context;
+  typedef struct _Unwind_Context* _Unwind_Context_t;
+  
+  extern const uint8_t* _Unwind_GetLanguageSpecificData (_Unwind_Context_t c);
+  extern uintptr_t _Unwind_GetGR (_Unwind_Context_t c, int i);
+  extern void _Unwind_SetGR (_Unwind_Context_t c, int i, uintptr_t n);
+  extern void _Unwind_SetIP (_Unwind_Context_t, uintptr_t new_value);
+  extern uintptr_t _Unwind_GetIP (_Unwind_Context_t context);
+  extern uintptr_t _Unwind_GetRegionStart (_Unwind_Context_t context);
+  
 } // extern "C"
 
 //
@@ -136,8 +130,8 @@ extern uintptr_t _Unwind_GetRegionStart (_Unwind_Context_t context);
 
 /// This is our simplistic type info
 struct OurExceptionType_t {
-    /// type info type
-    int type;
+  /// type info type
+  int type;
 };
 
 
@@ -148,10 +142,10 @@ struct OurExceptionType_t {
 ///       on a double word boundary. This is necessary to match the standard:
 ///       http://refspecs.freestandards.org/abi-eh-1.21.html
 struct OurBaseException_t {
-    struct OurExceptionType_t type;
-
-    // Note: This is properly aligned in unwind.h
-    struct _Unwind_Exception unwindException;
+  struct OurExceptionType_t type;
+  
+  // Note: This is properly aligned in unwind.h
+  struct _Unwind_Exception unwindException;
 };
 
 
@@ -169,7 +163,7 @@ static std::map<std::string, llvm::Value*> namedValues;
 int64_t ourBaseFromUnwindOffset;
 
 const unsigned char ourBaseExcpClassChars[] = 
-                                {'o', 'b', 'j', '\0', 'b', 'a', 's', '\0'};
+{'o', 'b', 'j', '\0', 'b', 'a', 's', '\0'};
 
 
 static uint64_t ourBaseExceptionClass = 0;
@@ -212,27 +206,24 @@ llvm::Function *createFunction(llvm::Module& module,
                                llvm::GlobalValue::LinkageTypes linkage,
                                bool declarationOnly,
                                bool isVarArg) {
-    llvm::FunctionType* functType = llvm::FunctionType::get(retType, 
-                                                            theArgTypes, 
-                                                            isVarArg);
-    llvm::Function* ret = llvm::Function::Create(functType, 
-                                                 linkage, 
-                                                 functName, 
-                                                 &module);
-    if (!ret || declarationOnly)
-        return(ret);
-
-    namedValues.clear();
-    unsigned i = 0; 
-    for (llvm::Function::arg_iterator argIndex = ret->arg_begin();
-         i != theArgNames.size();
-         ++argIndex, ++i) {
-
-        argIndex->setName(theArgNames[i]);
-        namedValues[theArgNames[i]] = argIndex;
-    }
-
+  llvm::FunctionType *functType =
+    llvm::FunctionType::get(retType, theArgTypes, isVarArg);
+  llvm::Function *ret =
+    llvm::Function::Create(functType, linkage, functName, &module);
+  if (!ret || declarationOnly)
     return(ret);
+  
+  namedValues.clear();
+  unsigned i = 0; 
+  for (llvm::Function::arg_iterator argIndex = ret->arg_begin();
+       i != theArgNames.size();
+       ++argIndex, ++i) {
+    
+    argIndex->setName(theArgNames[i]);
+    namedValues[theArgNames[i]] = argIndex;
+  }
+  
+  return(ret);
 }
 
 
@@ -244,17 +235,17 @@ llvm::Function *createFunction(llvm::Module& module,
 /// @param initWith optional constant initialization value
 /// @returns AllocaInst instance
 static llvm::AllocaInst *createEntryBlockAlloca(llvm::Function& function,
-                                            const std::string &varName,
-                                            const llvm::Type* type,
-                                            llvm::Constant* initWith = NULL) {
-    llvm::BasicBlock& block = function.getEntryBlock(); 
-    llvm::IRBuilder<> tmp(&block, block.begin());
-    llvm::AllocaInst* ret = tmp.CreateAlloca(type, 0, varName.c_str());
-
-    if (initWith) 
-        tmp.CreateStore(initWith, ret);
-
-    return(ret);
+                                                const std::string &varName,
+                                                const llvm::Type* type,
+                                                llvm::Constant* initWith = 0) {
+  llvm::BasicBlock& block = function.getEntryBlock(); 
+  llvm::IRBuilder<> tmp(&block, block.begin());
+  llvm::AllocaInst* ret = tmp.CreateAlloca(type, 0, varName.c_str());
+  
+  if (initWith) 
+    tmp.CreateStore(initWith, ret);
+  
+  return(ret);
 }
 
 
@@ -275,14 +266,14 @@ extern "C" {
 /// @param intToPrint integer to print 
 /// @param format printf like format to use when printing
 void print32Int(int intToPrint, const char* format) {
-    if (format) {
-        // Note: No NULL check
-        fprintf(stderr, format, intToPrint);
-    }
-    else {
-        // Note: No NULL check
-        fprintf(stderr, "::print32Int(...):NULL arg.\n");
-    }
+  if (format) {
+    // Note: No NULL check
+    fprintf(stderr, format, intToPrint);
+  }
+  else {
+    // Note: No NULL check
+    fprintf(stderr, "::print32Int(...):NULL arg.\n");
+  }
 }
 
 
@@ -292,26 +283,26 @@ void print32Int(int intToPrint, const char* format) {
 /// @param intToPrint integer to print 
 /// @param format printf like format to use when printing
 void print64Int(long int intToPrint, const char* format) {
-    if (format) {
-        // Note: No NULL check
-        fprintf(stderr, format, intToPrint);
-    }
-    else {
-        // Note: No NULL check
-        fprintf(stderr, "::print64Int(...):NULL arg.\n");
-    }
+  if (format) {
+    // Note: No NULL check
+    fprintf(stderr, format, intToPrint);
+  }
+  else {
+    // Note: No NULL check
+    fprintf(stderr, "::print64Int(...):NULL arg.\n");
+  }
 }
 
 
 /// Prints a C string to stderr
 /// @param toPrint string to print
 void printStr(char* toPrint) {
-    if (toPrint) {
-        fprintf(stderr, "%s", toPrint);
-    }
-    else {
-        fprintf(stderr, "::printStr(...):NULL arg.\n");
-    }
+  if (toPrint) {
+    fprintf(stderr, "%s", toPrint);
+  }
+  else {
+    fprintf(stderr, "::printStr(...):NULL arg.\n");
+  }
 }
 
 
@@ -321,15 +312,15 @@ void printStr(char* toPrint) {
 /// @param expToDelete exception to delete
 void deleteOurException(OurUnwindException* expToDelete) {
 #ifdef DEBUG
-    fprintf(stderr,
-            "deleteOurException(...).\n");
+  fprintf(stderr,
+          "deleteOurException(...).\n");
 #endif
-
-    if (expToDelete &&
-        (expToDelete->exception_class == ourBaseExceptionClass)) {
-
-        free(((char*) expToDelete) + ourBaseFromUnwindOffset);
-    }
+  
+  if (expToDelete &&
+      (expToDelete->exception_class == ourBaseExceptionClass)) {
+    
+    free(((char*) expToDelete) + ourBaseFromUnwindOffset);
+  }
 }
 
 
@@ -342,11 +333,11 @@ void deleteOurException(OurUnwindException* expToDelete) {
 void deleteFromUnwindOurException(_Unwind_Reason_Code reason,
                                   OurUnwindException* expToDelete) {
 #ifdef DEBUG
-    fprintf(stderr,
-            "deleteFromUnwindOurException(...).\n");
+  fprintf(stderr,
+          "deleteFromUnwindOurException(...).\n");
 #endif
-
-    deleteOurException(expToDelete);
+  
+  deleteOurException(expToDelete);
 }
 
 
@@ -354,13 +345,13 @@ void deleteFromUnwindOurException(_Unwind_Reason_Code reason,
 /// of the supplied type info type.
 /// @param type type info type
 OurUnwindException* createOurException(int type) {
-    size_t size = sizeof(OurException);
-    OurException* ret = (OurException*) memset(malloc(size), 0, size);
-    (ret->type).type = type;
-    (ret->unwindException).exception_class = ourBaseExceptionClass;
-    (ret->unwindException).exception_cleanup = deleteFromUnwindOurException;
-
-    return(&(ret->unwindException));
+  size_t size = sizeof(OurException);
+  OurException* ret = (OurException*) memset(malloc(size), 0, size);
+  (ret->type).type = type;
+  (ret->unwindException).exception_class = ourBaseExceptionClass;
+  (ret->unwindException).exception_cleanup = deleteFromUnwindOurException;
+  
+  return(&(ret->unwindException));
 }
 
 
@@ -370,21 +361,21 @@ OurUnwindException* createOurException(int type) {
 /// @param data reference variable holding memory pointer to decode from
 /// @returns decoded value
 static uintptr_t readULEB128(const uint8_t** data) {
-    uintptr_t result = 0;
-    uintptr_t shift = 0;
-    unsigned char byte;
-    const uint8_t* p = *data;
-
-    do {
-        byte = *p++;
-        result |= (byte & 0x7f) << shift;
-        shift += 7;
-    } 
-    while (byte & 0x80);
-
-    *data = p;
-
-    return result;
+  uintptr_t result = 0;
+  uintptr_t shift = 0;
+  unsigned char byte;
+  const uint8_t* p = *data;
+  
+  do {
+    byte = *p++;
+    result |= (byte & 0x7f) << shift;
+    shift += 7;
+  } 
+  while (byte & 0x80);
+  
+  *data = p;
+  
+  return result;
 }
 
 
@@ -394,25 +385,25 @@ static uintptr_t readULEB128(const uint8_t** data) {
 /// @param data reference variable holding memory pointer to decode from
 /// @returns decoded value
 static uintptr_t readSLEB128(const uint8_t** data) {
-    uintptr_t result = 0;
-    uintptr_t shift = 0;
-    unsigned char byte;
-    const uint8_t* p = *data;
-
-    do {
-        byte = *p++;
-        result |= (byte & 0x7f) << shift;
-        shift += 7;
-    } 
-    while (byte & 0x80);
-
-    *data = p;
-
-    if ((byte & 0x40) && (shift < (sizeof(result) << 3))) {
-        result |= (~0 << shift);
-    }
-
-    return result;
+  uintptr_t result = 0;
+  uintptr_t shift = 0;
+  unsigned char byte;
+  const uint8_t* p = *data;
+  
+  do {
+    byte = *p++;
+    result |= (byte & 0x7f) << shift;
+    shift += 7;
+  } 
+  while (byte & 0x80);
+  
+  *data = p;
+  
+  if ((byte & 0x40) && (shift < (sizeof(result) << 3))) {
+    result |= (~0 << shift);
+  }
+  
+  return result;
 }
 
 
@@ -423,81 +414,81 @@ static uintptr_t readSLEB128(const uint8_t** data) {
 /// @param encoding dwarf encoding type
 /// @returns decoded value
 static uintptr_t readEncodedPointer(const uint8_t** data, uint8_t encoding) {
-    uintptr_t result = 0;
-    const uint8_t* p = *data;
-
-    if (encoding == llvm::dwarf::DW_EH_PE_omit) 
-        return(result);
-
-    // first get value 
-    switch (encoding & 0x0F) {
-        case llvm::dwarf::DW_EH_PE_absptr:
-            result = *((uintptr_t*)p);
-            p += sizeof(uintptr_t);
-            break;
-        case llvm::dwarf::DW_EH_PE_uleb128:
-            result = readULEB128(&p);
-            break;
-        // Note: This case has not been tested
-        case llvm::dwarf::DW_EH_PE_sleb128:
-            result = readSLEB128(&p);
-            break;
-        case llvm::dwarf::DW_EH_PE_udata2:
-            result = *((uint16_t*)p);
-            p += sizeof(uint16_t);
-            break;
-        case llvm::dwarf::DW_EH_PE_udata4:
-            result = *((uint32_t*)p);
-            p += sizeof(uint32_t);
-            break;
-        case llvm::dwarf::DW_EH_PE_udata8:
-            result = *((uint64_t*)p);
-            p += sizeof(uint64_t);
-            break;
-        case llvm::dwarf::DW_EH_PE_sdata2:
-            result = *((int16_t*)p);
-            p += sizeof(int16_t);
-            break;
-        case llvm::dwarf::DW_EH_PE_sdata4:
-            result = *((int32_t*)p);
-            p += sizeof(int32_t);
-            break;
-        case llvm::dwarf::DW_EH_PE_sdata8:
-            result = *((int64_t*)p);
-            p += sizeof(int64_t);
-            break;
-        default:
-            // not supported 
-            abort();
-            break;
-    }
-
-    // then add relative offset 
-    switch (encoding & 0x70) {
-        case llvm::dwarf::DW_EH_PE_absptr:
-            // do nothing 
-            break;
-        case llvm::dwarf::DW_EH_PE_pcrel:
-            result += (uintptr_t)(*data);
-            break;
-        case llvm::dwarf::DW_EH_PE_textrel:
-        case llvm::dwarf::DW_EH_PE_datarel:
-        case llvm::dwarf::DW_EH_PE_funcrel:
-        case llvm::dwarf::DW_EH_PE_aligned:
-        default:
-            // not supported 
-            abort();
-            break;
-    }
-
-    // then apply indirection 
-    if (encoding & llvm::dwarf::DW_EH_PE_indirect) {
-        result = *((uintptr_t*)result);
-    }
-
-    *data = p;
-
-    return result;
+  uintptr_t result = 0;
+  const uint8_t* p = *data;
+  
+  if (encoding == llvm::dwarf::DW_EH_PE_omit) 
+    return(result);
+  
+  // first get value 
+  switch (encoding & 0x0F) {
+    case llvm::dwarf::DW_EH_PE_absptr:
+      result = *((uintptr_t*)p);
+      p += sizeof(uintptr_t);
+      break;
+    case llvm::dwarf::DW_EH_PE_uleb128:
+      result = readULEB128(&p);
+      break;
+      // Note: This case has not been tested
+    case llvm::dwarf::DW_EH_PE_sleb128:
+      result = readSLEB128(&p);
+      break;
+    case llvm::dwarf::DW_EH_PE_udata2:
+      result = *((uint16_t*)p);
+      p += sizeof(uint16_t);
+      break;
+    case llvm::dwarf::DW_EH_PE_udata4:
+      result = *((uint32_t*)p);
+      p += sizeof(uint32_t);
+      break;
+    case llvm::dwarf::DW_EH_PE_udata8:
+      result = *((uint64_t*)p);
+      p += sizeof(uint64_t);
+      break;
+    case llvm::dwarf::DW_EH_PE_sdata2:
+      result = *((int16_t*)p);
+      p += sizeof(int16_t);
+      break;
+    case llvm::dwarf::DW_EH_PE_sdata4:
+      result = *((int32_t*)p);
+      p += sizeof(int32_t);
+      break;
+    case llvm::dwarf::DW_EH_PE_sdata8:
+      result = *((int64_t*)p);
+      p += sizeof(int64_t);
+      break;
+    default:
+      // not supported 
+      abort();
+      break;
+  }
+  
+  // then add relative offset 
+  switch (encoding & 0x70) {
+    case llvm::dwarf::DW_EH_PE_absptr:
+      // do nothing 
+      break;
+    case llvm::dwarf::DW_EH_PE_pcrel:
+      result += (uintptr_t)(*data);
+      break;
+    case llvm::dwarf::DW_EH_PE_textrel:
+    case llvm::dwarf::DW_EH_PE_datarel:
+    case llvm::dwarf::DW_EH_PE_funcrel:
+    case llvm::dwarf::DW_EH_PE_aligned:
+    default:
+      // not supported 
+      abort();
+      break;
+  }
+  
+  // then apply indirection 
+  if (encoding & llvm::dwarf::DW_EH_PE_indirect) {
+    result = *((uintptr_t*)result);
+  }
+  
+  *data = p;
+  
+  return result;
 }
 
 
@@ -524,74 +515,74 @@ static bool handleActionValue(int64_t *resultAction,
                               uintptr_t actionEntry, 
                               uint64_t exceptionClass, 
                               struct _Unwind_Exception *exceptionObject) {
-    bool ret = false;
-
-    if (!resultAction || 
-        !exceptionObject || 
-        (exceptionClass != ourBaseExceptionClass))
-        return(ret);
-
-    struct OurBaseException_t* excp = (struct OurBaseException_t*)
-                        (((char*) exceptionObject) + ourBaseFromUnwindOffset);
-    struct OurExceptionType_t *excpType = &(excp->type);
-    int type = excpType->type;
-
+  bool ret = false;
+  
+  if (!resultAction || 
+      !exceptionObject || 
+      (exceptionClass != ourBaseExceptionClass))
+    return(ret);
+  
+  struct OurBaseException_t* excp = (struct OurBaseException_t*)
+  (((char*) exceptionObject) + ourBaseFromUnwindOffset);
+  struct OurExceptionType_t *excpType = &(excp->type);
+  int type = excpType->type;
+  
 #ifdef DEBUG
-    fprintf(stderr,
-            "handleActionValue(...): exceptionObject = <%p>, "
-                "excp = <%p>.\n",
-            exceptionObject,
-            excp);
+  fprintf(stderr,
+          "handleActionValue(...): exceptionObject = <%p>, "
+          "excp = <%p>.\n",
+          exceptionObject,
+          excp);
 #endif
-
-    const uint8_t *actionPos = (uint8_t*) actionEntry,
-                  *tempActionPos;
-    int64_t typeOffset = 0,
-            actionOffset;
-
-    for (int i = 0; true; ++i) {
-        // Each emitted dwarf action corresponds to a 2 tuple of
-        // type info address offset, and action offset to the next
-        // emitted action.
-        typeOffset = readSLEB128(&actionPos);
-        tempActionPos = actionPos;
-        actionOffset = readSLEB128(&tempActionPos);
-
+  
+  const uint8_t *actionPos = (uint8_t*) actionEntry,
+  *tempActionPos;
+  int64_t typeOffset = 0,
+  actionOffset;
+  
+  for (int i = 0; true; ++i) {
+    // Each emitted dwarf action corresponds to a 2 tuple of
+    // type info address offset, and action offset to the next
+    // emitted action.
+    typeOffset = readSLEB128(&actionPos);
+    tempActionPos = actionPos;
+    actionOffset = readSLEB128(&tempActionPos);
+    
 #ifdef DEBUG
-        fprintf(stderr,
-                "handleActionValue(...):typeOffset: <%lld>, "
-                    "actionOffset: <%lld>.\n",
-                typeOffset,
-                actionOffset);
+    fprintf(stderr,
+            "handleActionValue(...):typeOffset: <%lld>, "
+            "actionOffset: <%lld>.\n",
+            typeOffset,
+            actionOffset);
 #endif
-        assert((typeOffset >= 0) && 
-               "handleActionValue(...):filters are not supported.");
-
-        // Note: A typeOffset == 0 implies that a cleanup llvm.eh.selector
-        //       argument has been matched.
-        if ((typeOffset > 0) &&
-            (type == (classInfo[-typeOffset])->type)) {
+    assert((typeOffset >= 0) && 
+           "handleActionValue(...):filters are not supported.");
+    
+    // Note: A typeOffset == 0 implies that a cleanup llvm.eh.selector
+    //       argument has been matched.
+    if ((typeOffset > 0) &&
+        (type == (classInfo[-typeOffset])->type)) {
 #ifdef DEBUG
-            fprintf(stderr,
-                    "handleActionValue(...):actionValue <%d> found.\n",
-                    i);
+      fprintf(stderr,
+              "handleActionValue(...):actionValue <%d> found.\n",
+              i);
 #endif
-            *resultAction = i + 1;
-            ret = true;
-            break;
-        }
-
+      *resultAction = i + 1;
+      ret = true;
+      break;
+    }
+    
 #ifdef DEBUG
-        fprintf(stderr,
-                "handleActionValue(...):actionValue not found.\n");
+    fprintf(stderr,
+            "handleActionValue(...):actionValue not found.\n");
 #endif
-        if (!actionOffset)
-            break;
-
-        actionPos += actionOffset;
-    }
-
-    return(ret);
+    if (!actionOffset)
+      break;
+    
+    actionPos += actionOffset;
+  }
+  
+  return(ret);
 }
 
 
@@ -607,180 +598,180 @@ static bool handleActionValue(int64_t *resultAction,
 /// @param context unwind system context
 /// @returns minimally supported unwinding control indicator 
 static _Unwind_Reason_Code handleLsda(int version, 
-                                  const uint8_t* lsda,
-                                  _Unwind_Action actions,
-                                  uint64_t exceptionClass, 
-                                  struct _Unwind_Exception* exceptionObject,
-                                  _Unwind_Context_t context) {
-    _Unwind_Reason_Code ret = _URC_CONTINUE_UNWIND;
-
-    if (!lsda)
-        return(ret);
-
+                                      const uint8_t* lsda,
+                                      _Unwind_Action actions,
+                                      uint64_t exceptionClass, 
+                                    struct _Unwind_Exception* exceptionObject,
+                                      _Unwind_Context_t context) {
+  _Unwind_Reason_Code ret = _URC_CONTINUE_UNWIND;
+  
+  if (!lsda)
+    return(ret);
+  
 #ifdef DEBUG
-    fprintf(stderr, 
-            "handleLsda(...):lsda is non-zero.\n");
+  fprintf(stderr, 
+          "handleLsda(...):lsda is non-zero.\n");
 #endif
-
-    // Get the current instruction pointer and offset it before next
-    // instruction in the current frame which threw the exception.
-    uintptr_t pc = _Unwind_GetIP(context)-1;
-
-    // Get beginning current frame's code (as defined by the 
-    // emitted dwarf code)
-    uintptr_t funcStart = _Unwind_GetRegionStart(context);
-    uintptr_t pcOffset = pc - funcStart;
-    struct OurExceptionType_t** classInfo = NULL;
-
-    // Note: See JITDwarfEmitter::EmitExceptionTable(...) for corresponding
-    //       dwarf emission
-
-    // Parse LSDA header.
-    uint8_t lpStartEncoding = *lsda++;
-
-    if (lpStartEncoding != llvm::dwarf::DW_EH_PE_omit) {
-        readEncodedPointer(&lsda, lpStartEncoding); 
-    }
-
-    uint8_t ttypeEncoding = *lsda++;
-    uintptr_t classInfoOffset;
-
-    if (ttypeEncoding != llvm::dwarf::DW_EH_PE_omit) {
-        // Calculate type info locations in emitted dwarf code which
-        // were flagged by type info arguments to llvm.eh.selector
-        // intrinsic
-        classInfoOffset = readULEB128(&lsda);
-        classInfo = (struct OurExceptionType_t**) (lsda + classInfoOffset);
-    }
-
-    // Walk call-site table looking for range that 
-    // includes current PC. 
-
-    uint8_t         callSiteEncoding = *lsda++;
-    uint32_t        callSiteTableLength = readULEB128(&lsda);
-    const uint8_t*  callSiteTableStart = lsda;
-    const uint8_t*  callSiteTableEnd = callSiteTableStart + 
-                                                    callSiteTableLength;
-    const uint8_t*  actionTableStart = callSiteTableEnd;
-    const uint8_t*  callSitePtr = callSiteTableStart;
-
-    bool foreignException = false;
-
-    while (callSitePtr < callSiteTableEnd) {
-        uintptr_t start = readEncodedPointer(&callSitePtr, 
-                                             callSiteEncoding);
-        uintptr_t length = readEncodedPointer(&callSitePtr, 
+  
+  // Get the current instruction pointer and offset it before next
+  // instruction in the current frame which threw the exception.
+  uintptr_t pc = _Unwind_GetIP(context)-1;
+  
+  // Get beginning current frame's code (as defined by the 
+  // emitted dwarf code)
+  uintptr_t funcStart = _Unwind_GetRegionStart(context);
+  uintptr_t pcOffset = pc - funcStart;
+  struct OurExceptionType_t** classInfo = NULL;
+  
+  // Note: See JITDwarfEmitter::EmitExceptionTable(...) for corresponding
+  //       dwarf emission
+  
+  // Parse LSDA header.
+  uint8_t lpStartEncoding = *lsda++;
+  
+  if (lpStartEncoding != llvm::dwarf::DW_EH_PE_omit) {
+    readEncodedPointer(&lsda, lpStartEncoding); 
+  }
+  
+  uint8_t ttypeEncoding = *lsda++;
+  uintptr_t classInfoOffset;
+  
+  if (ttypeEncoding != llvm::dwarf::DW_EH_PE_omit) {
+    // Calculate type info locations in emitted dwarf code which
+    // were flagged by type info arguments to llvm.eh.selector
+    // intrinsic
+    classInfoOffset = readULEB128(&lsda);
+    classInfo = (struct OurExceptionType_t**) (lsda + classInfoOffset);
+  }
+  
+  // Walk call-site table looking for range that 
+  // includes current PC. 
+  
+  uint8_t         callSiteEncoding = *lsda++;
+  uint32_t        callSiteTableLength = readULEB128(&lsda);
+  const uint8_t*  callSiteTableStart = lsda;
+  const uint8_t*  callSiteTableEnd = callSiteTableStart + 
+  callSiteTableLength;
+  const uint8_t*  actionTableStart = callSiteTableEnd;
+  const uint8_t*  callSitePtr = callSiteTableStart;
+  
+  bool foreignException = false;
+  
+  while (callSitePtr < callSiteTableEnd) {
+    uintptr_t start = readEncodedPointer(&callSitePtr, 
+                                         callSiteEncoding);
+    uintptr_t length = readEncodedPointer(&callSitePtr, 
+                                          callSiteEncoding);
+    uintptr_t landingPad = readEncodedPointer(&callSitePtr, 
                                               callSiteEncoding);
-        uintptr_t landingPad = readEncodedPointer(&callSitePtr, 
-                                                  callSiteEncoding);
-
-        // Note: Action value
-        uintptr_t actionEntry = readULEB128(&callSitePtr);
-
-        if (exceptionClass != ourBaseExceptionClass) {
-            // We have been notified of a foreign exception being thrown,
-            // and we therefore need to execute cleanup landing pads
-            actionEntry = 0;
-            foreignException = true;
-        }
-
-        if (landingPad == 0) {
+    
+    // Note: Action value
+    uintptr_t actionEntry = readULEB128(&callSitePtr);
+    
+    if (exceptionClass != ourBaseExceptionClass) {
+      // We have been notified of a foreign exception being thrown,
+      // and we therefore need to execute cleanup landing pads
+      actionEntry = 0;
+      foreignException = true;
+    }
+    
+    if (landingPad == 0) {
 #ifdef DEBUG
-            fprintf(stderr,
-                    "handleLsda(...): No landing pad found.\n");
+      fprintf(stderr,
+              "handleLsda(...): No landing pad found.\n");
 #endif
-
-            continue; // no landing pad for this entry
-        }
-
-        if (actionEntry) {
-            actionEntry += ((uintptr_t) actionTableStart) - 1;
-        }
-        else {
+      
+      continue; // no landing pad for this entry
+    }
+    
+    if (actionEntry) {
+      actionEntry += ((uintptr_t) actionTableStart) - 1;
+    }
+    else {
 #ifdef DEBUG
-            fprintf(stderr,
-                    "handleLsda(...):No action table found.\n");
+      fprintf(stderr,
+              "handleLsda(...):No action table found.\n");
 #endif
-        }
-
-        bool exceptionMatched = false;
-
-        if ((start <= pcOffset) && (pcOffset < (start + length))) {
+    }
+    
+    bool exceptionMatched = false;
+    
+    if ((start <= pcOffset) && (pcOffset < (start + length))) {
 #ifdef DEBUG
-            fprintf(stderr,
-                    "handleLsda(...): Landing pad found.\n");
+      fprintf(stderr,
+              "handleLsda(...): Landing pad found.\n");
 #endif
-            int64_t actionValue = 0;
-
-            if (actionEntry) {
-                exceptionMatched = handleActionValue
-                                   (
-                                       &actionValue,
-                                       classInfo, 
-                                       actionEntry, 
-                                       exceptionClass, 
-                                       exceptionObject
-                                   );
-            }
-
-            if (!(actions & _UA_SEARCH_PHASE)) {
+      int64_t actionValue = 0;
+      
+      if (actionEntry) {
+        exceptionMatched = handleActionValue
+        (
+         &actionValue,
+         classInfo, 
+         actionEntry, 
+         exceptionClass, 
+         exceptionObject
+         );
+      }
+      
+      if (!(actions & _UA_SEARCH_PHASE)) {
 #ifdef DEBUG
-                fprintf(stderr,
-                        "handleLsda(...): installed landing pad "
-                            "context.\n");
+        fprintf(stderr,
+                "handleLsda(...): installed landing pad "
+                "context.\n");
 #endif
-
-                // Found landing pad for the PC.
-                // Set Instruction Pointer to so we re-enter function 
-                // at landing pad. The landing pad is created by the 
-                // compiler to take two parameters in registers.
-                _Unwind_SetGR(context, 
-                              __builtin_eh_return_data_regno(0), 
-                              (uintptr_t)exceptionObject);
-
-                // Note: this virtual register directly corresponds
-                //       to the return of the llvm.eh.selector intrinsic
-                if (!actionEntry || !exceptionMatched) {
-                    // We indicate cleanup only
-                    _Unwind_SetGR(context, 
-                                  __builtin_eh_return_data_regno(1), 
-                                  0);
-                }
-                else {
-                    // Matched type info index of llvm.eh.selector intrinsic
-                    // passed here.
-                    _Unwind_SetGR(context, 
-                                  __builtin_eh_return_data_regno(1), 
-                                  actionValue);
-                }
-
-                // To execute landing pad set here
-                _Unwind_SetIP(context, funcStart + landingPad);
-                ret = _URC_INSTALL_CONTEXT;
-            }
-            else if (exceptionMatched) {
+        
+        // Found landing pad for the PC.
+        // Set Instruction Pointer to so we re-enter function 
+        // at landing pad. The landing pad is created by the 
+        // compiler to take two parameters in registers.
+        _Unwind_SetGR(context, 
+                      __builtin_eh_return_data_regno(0), 
+                      (uintptr_t)exceptionObject);
+        
+        // Note: this virtual register directly corresponds
+        //       to the return of the llvm.eh.selector intrinsic
+        if (!actionEntry || !exceptionMatched) {
+          // We indicate cleanup only
+          _Unwind_SetGR(context, 
+                        __builtin_eh_return_data_regno(1), 
+                        0);
+        }
+        else {
+          // Matched type info index of llvm.eh.selector intrinsic
+          // passed here.
+          _Unwind_SetGR(context, 
+                        __builtin_eh_return_data_regno(1), 
+                        actionValue);
+        }
+        
+        // To execute landing pad set here
+        _Unwind_SetIP(context, funcStart + landingPad);
+        ret = _URC_INSTALL_CONTEXT;
+      }
+      else if (exceptionMatched) {
 #ifdef DEBUG
-                fprintf(stderr,
-                        "handleLsda(...): setting handler found.\n");
+        fprintf(stderr,
+                "handleLsda(...): setting handler found.\n");
 #endif
-                ret = _URC_HANDLER_FOUND;
-            }
-            else {
-                // Note: Only non-clean up handlers are marked as
-                //       found. Otherwise the clean up handlers will be 
-                //       re-found and executed during the clean up 
-                //       phase.
+        ret = _URC_HANDLER_FOUND;
+      }
+      else {
+        // Note: Only non-clean up handlers are marked as
+        //       found. Otherwise the clean up handlers will be 
+        //       re-found and executed during the clean up 
+        //       phase.
 #ifdef DEBUG
-                fprintf(stderr,
-                        "handleLsda(...): cleanup handler found.\n");
+        fprintf(stderr,
+                "handleLsda(...): cleanup handler found.\n");
 #endif
-            }
-
-            break;
-        }
+      }
+      
+      break;
     }
-
-    return(ret);
+  }
+  
+  return(ret);
 }
 
 
@@ -796,38 +787,38 @@ static _Unwind_Reason_Code handleLsda(int version,
 /// @param context unwind system context
 /// @returns minimally supported unwinding control indicator 
 _Unwind_Reason_Code ourPersonality(int version, 
-                               _Unwind_Action actions,
-                               uint64_t exceptionClass, 
-                               struct _Unwind_Exception* exceptionObje