[Lldb-commits] [lldb] r263333 - Let's not convert from UINT32_MAX to the std::numeric_limits version.

Zachary Turner via lldb-commits lldb-commits at lists.llvm.org
Tue Mar 15 14:20:17 PDT 2016


Is the stdint version better somehow?  I thought C++ numeric_limits were
actually preferred over the C macros.

On Mon, Mar 14, 2016 at 7:59 AM Adrian McCarthy via lldb-commits <
lldb-commits at lists.llvm.org> wrote:

> If we're favoring the <stdint.h> macros over the <limits> functions, then
> perhaps update the #includes?
>
> On Fri, Mar 11, 2016 at 7:33 PM, Jim Ingham via lldb-commits <
> lldb-commits at lists.llvm.org> wrote:
>
>> Author: jingham
>> Date: Fri Mar 11 21:33:36 2016
>> New Revision: 263333
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=263333&view=rev
>> Log:
>> Let's not convert from UINT32_MAX to the std::numeric_limits version.
>>
>> Modified:
>>     lldb/trunk/source/Core/DataEncoder.cpp
>>     lldb/trunk/source/Core/Disassembler.cpp
>>     lldb/trunk/source/Core/FileSpecList.cpp
>>     lldb/trunk/source/Core/SearchFilter.cpp
>>
>> Modified: lldb/trunk/source/Core/DataEncoder.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/DataEncoder.cpp?rev=263333&r1=263332&r2=263333&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Core/DataEncoder.cpp (original)
>> +++ lldb/trunk/source/Core/DataEncoder.cpp Fri Mar 11 21:33:36 2016
>> @@ -233,7 +233,7 @@ DataEncoder::PutU8 (uint32_t offset, uin
>>          m_start[offset] = value;
>>          return offset + 1;
>>      }
>> -    return std::numeric_limits<uint32_t>::max();
>> +    return UINT32_MAX;
>>  }
>>
>>  uint32_t
>> @@ -248,7 +248,7 @@ DataEncoder::PutU16 (uint32_t offset, ui
>>
>>          return offset + sizeof (value);
>>      }
>> -    return std::numeric_limits<uint32_t>::max();
>> +    return UINT32_MAX;
>>  }
>>
>>  uint32_t
>> @@ -263,7 +263,7 @@ DataEncoder::PutU32 (uint32_t offset, ui
>>
>>          return offset + sizeof (value);
>>      }
>> -    return std::numeric_limits<uint32_t>::max();
>> +    return UINT32_MAX;
>>  }
>>
>>  uint32_t
>> @@ -278,7 +278,7 @@ DataEncoder::PutU64 (uint32_t offset, ui
>>
>>          return offset + sizeof (value);
>>      }
>> -    return std::numeric_limits<uint32_t>::max();
>> +    return UINT32_MAX;
>>  }
>>
>>  //----------------------------------------------------------------------
>> @@ -304,7 +304,7 @@ DataEncoder::PutMaxU64 (uint32_t offset,
>>          assert(!"GetMax64 unhandled case!");
>>          break;
>>      }
>> -    return std::numeric_limits<uint32_t>::max();
>> +    return UINT32_MAX;
>>  }
>>
>>  uint32_t
>> @@ -318,7 +318,7 @@ DataEncoder::PutData (uint32_t offset, c
>>          memcpy (m_start + offset, src, src_len);
>>          return offset + src_len;
>>      }
>> -    return std::numeric_limits<uint32_t>::max();
>> +    return UINT32_MAX;
>>  }
>>
>>  uint32_t
>> @@ -332,5 +332,5 @@ DataEncoder::PutCString (uint32_t offset
>>  {
>>      if (cstr != nullptr)
>>          return PutData (offset, cstr, strlen(cstr) + 1);
>> -    return std::numeric_limits<uint32_t>::max();
>> +    return UINT32_MAX;
>>  }
>>
>> Modified: lldb/trunk/source/Core/Disassembler.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/Disassembler.cpp?rev=263333&r1=263332&r2=263333&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Core/Disassembler.cpp (original)
>> +++ lldb/trunk/source/Core/Disassembler.cpp Fri Mar 11 21:33:36 2016
>> @@ -1036,7 +1036,7 @@ InstructionList::GetIndexOfNextBranchIns
>>  {
>>      size_t num_instructions = m_instructions.size();
>>
>> -    uint32_t next_branch = std::numeric_limits<uint32_t>::max();
>> +    uint32_t next_branch = UINT32_MAX;
>>      size_t i;
>>      for (i = start; i < num_instructions; i++)
>>      {
>> @@ -1053,7 +1053,7 @@ InstructionList::GetIndexOfNextBranchIns
>>      if (target.GetArchitecture().GetTriple().getArch() ==
>> llvm::Triple::hexagon)
>>      {
>>          // If we didn't find a branch, find the last packet start.
>> -        if (next_branch == std::numeric_limits<uint32_t>::max())
>> +        if (next_branch == UINT32_MAX)
>>          {
>>              i = num_instructions - 1;
>>          }
>> @@ -1086,7 +1086,7 @@ InstructionList::GetIndexOfNextBranchIns
>>              }
>>          }
>>
>> -        if (next_branch == std::numeric_limits<uint32_t>::max())
>> +        if (next_branch == UINT32_MAX)
>>          {
>>              // We couldn't find the previous packet, so return start
>>              next_branch = start;
>> @@ -1099,7 +1099,7 @@ uint32_t
>>  InstructionList::GetIndexOfInstructionAtAddress (const Address &address)
>>  {
>>      size_t num_instructions = m_instructions.size();
>> -    uint32_t index = std::numeric_limits<uint32_t>::max();
>> +    uint32_t index = UINT32_MAX;
>>      for (size_t i = 0; i < num_instructions; i++)
>>      {
>>          if (m_instructions[i]->GetAddress() == address)
>> @@ -1152,7 +1152,7 @@ Disassembler::ParseInstructions (const E
>>                                  m_arch.GetByteOrder(),
>>                                  m_arch.GetAddressByteSize());
>>              const bool data_from_file = load_addr ==
>> LLDB_INVALID_ADDRESS;
>> -            return DecodeInstructions(range.GetBaseAddress(), data, 0,
>> std::numeric_limits<uint32_t>::max(), false,
>> +            return DecodeInstructions(range.GetBaseAddress(), data, 0,
>> UINT32_MAX, false,
>>                                        data_from_file);
>>          }
>>          else if (error_strm_ptr)
>>
>> Modified: lldb/trunk/source/Core/FileSpecList.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/FileSpecList.cpp?rev=263333&r1=263332&r2=263333&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Core/FileSpecList.cpp (original)
>> +++ lldb/trunk/source/Core/FileSpecList.cpp Fri Mar 11 21:33:36 2016
>> @@ -125,7 +125,7 @@ FileSpecList::FindFileIndex (size_t star
>>      }
>>
>>      // We didn't find the file, return an invalid index
>> -    return std::numeric_limits<uint32_t>::max();
>> +    return UINT32_MAX;
>>  }
>>
>>  //------------------------------------------------------------------
>>
>> Modified: lldb/trunk/source/Core/SearchFilter.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/SearchFilter.cpp?rev=263333&r1=263332&r2=263333&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Core/SearchFilter.cpp (original)
>> +++ lldb/trunk/source/Core/SearchFilter.cpp Fri Mar 11 21:33:36 2016
>> @@ -266,7 +266,10 @@ SearchFilter::DoFunctionIteration (Funct
>>  bool
>>  SearchFilterForUnconstrainedSearches::ModulePasses (const FileSpec
>> &module_spec)
>>  {
>> -    return
>> (!m_target_sp->ModuleIsExcludedForUnconstrainedSearches(module_spec));
>> +    if (m_target_sp->ModuleIsExcludedForUnconstrainedSearches
>> (module_spec))
>> +        return false;
>> +    else
>> +        return true;
>>  }
>>
>>  bool
>> @@ -445,7 +448,7 @@ SearchFilterByModuleList::ModulePasses (
>>          return true;
>>
>>      if (module_sp &&
>> -        m_module_spec_list.FindFileIndex(0, module_sp->GetFileSpec(),
>> false) != std::numeric_limits<uint32_t>::max())
>> +        m_module_spec_list.FindFileIndex(0, module_sp->GetFileSpec(),
>> false) != UINT32_MAX)
>>          return true;
>>      else
>>          return false;
>> @@ -457,7 +460,7 @@ SearchFilterByModuleList::ModulePasses (
>>      if (m_module_spec_list.GetSize() == 0)
>>          return true;
>>
>> -    if (m_module_spec_list.FindFileIndex(0, spec, true) !=
>> std::numeric_limits<uint32_t>::max())
>> +    if (m_module_spec_list.FindFileIndex(0, spec, true) != UINT32_MAX)
>>          return true;
>>      else
>>          return false;
>> @@ -506,7 +509,7 @@ SearchFilterByModuleList::Search (Search
>>      for (size_t i = 0; i < num_modules; i++)
>>      {
>>          Module* module =
>> target_modules.GetModulePointerAtIndexUnlocked(i);
>> -        if (m_module_spec_list.FindFileIndex(0, module->GetFileSpec(),
>> false) != std::numeric_limits<uint32_t>::max())
>> +        if (m_module_spec_list.FindFileIndex(0, module->GetFileSpec(),
>> false) != UINT32_MAX)
>>          {
>>              SymbolContext matchingContext(m_target_sp,
>> module->shared_from_this());
>>              Searcher::CallbackReturn shouldContinue;
>> @@ -613,13 +616,13 @@ SearchFilterByModuleListAndCU::AddressPa
>>  bool
>>  SearchFilterByModuleListAndCU::CompUnitPasses (FileSpec &fileSpec)
>>  {
>> -    return m_cu_spec_list.FindFileIndex(0, fileSpec, false) !=
>> std::numeric_limits<uint32_t>::max();
>> +    return m_cu_spec_list.FindFileIndex(0, fileSpec, false) !=
>> UINT32_MAX;
>>  }
>>
>>  bool
>>  SearchFilterByModuleListAndCU::CompUnitPasses (CompileUnit &compUnit)
>>  {
>> -    bool in_cu_list = m_cu_spec_list.FindFileIndex(0, compUnit, false)
>> != std::numeric_limits<uint32_t>::max();
>> +    bool in_cu_list = m_cu_spec_list.FindFileIndex(0, compUnit, false)
>> != UINT32_MAX;
>>      if (in_cu_list)
>>      {
>>          ModuleSP module_sp(compUnit.GetModule());
>> @@ -662,7 +665,7 @@ SearchFilterByModuleListAndCU::Search (S
>>      {
>>          lldb::ModuleSP module_sp =
>> target_images.GetModuleAtIndexUnlocked(i);
>>          if (no_modules_in_filter ||
>> -            m_module_spec_list.FindFileIndex(0,
>> module_sp->GetFileSpec(), false) != std::numeric_limits<uint32_t>::max())
>> +            m_module_spec_list.FindFileIndex(0,
>> module_sp->GetFileSpec(), false) != UINT32_MAX)
>>          {
>>              SymbolContext matchingContext(m_target_sp, module_sp);
>>              Searcher::CallbackReturn shouldContinue;
>> @@ -682,8 +685,7 @@ SearchFilterByModuleListAndCU::Search (S
>>                      matchingContext.comp_unit = cu_sp.get();
>>                      if (matchingContext.comp_unit)
>>                      {
>> -                        if (m_cu_spec_list.FindFileIndex(0,
>> *matchingContext.comp_unit, false) !=
>> -                            std::numeric_limits<uint32_t>::max())
>> +                        if (m_cu_spec_list.FindFileIndex(0,
>> *matchingContext.comp_unit, false) != UINT32_MAX)
>>                          {
>>                              shouldContinue = DoCUIteration(module_sp,
>> matchingContext, searcher);
>>                              if (shouldContinue ==
>> Searcher::eCallbackReturnStop)
>>
>>
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>> lldb-commits at lists.llvm.org
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>>
>
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