llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-01 00:11:00 +00:00

History

Benjamin Kramer 7cb3aa3ed5 CommandLine: Replace cold std::sort with array_pod_sort. Also replace an old use of qsort with it. Compiles down to the same thing but gives us some type safety. Safes a couple of kb on CommandLine.o. NFC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232236 91177308-0d34-0410-b5e6-96231b3b80d8		2015-03-14 00:20:13 +00:00
..
Unix	Replace PrintStackTrace(FILE*) with PrintStackTrace(raw_ostream&)	2015-03-05 19:10:52 +00:00
Windows	Wrap in __MINGW32__ to avoid warnings from msvc.	2015-03-11 16:09:02 +00:00
Allocator.cpp
APFloat.cpp	Simplify expressions involving boolean constants with clang-tidy	2015-03-09 01:57:13 +00:00
APInt.cpp	Teach raw_ostream to accept SmallString.	2015-03-10 07:33:23 +00:00
APSInt.cpp
ARMBuildAttrs.cpp
ARMWinEH.cpp
Atomic.cpp
BlockFrequency.cpp
BranchProbability.cpp
circular_raw_ostream.cpp
CMakeLists.txt	Drop the hacks used for partial C99 math libraries.	2015-03-09 18:35:18 +00:00
CommandLine.cpp	CommandLine: Replace cold std::sort with array_pod_sort.	2015-03-14 00:20:13 +00:00
Compression.cpp
ConvertUTF.c
ConvertUTFWrapper.cpp	Make UTF8->UTF16 conversion null terminate output on empty input.	2015-02-08 18:08:51 +00:00
COPYRIGHT.regex
CrashRecoveryContext.cpp
DAGDeltaAlgorithm.cpp
DataExtractor.cpp
DataStream.cpp
Debug.cpp	Provide the same ABI regardless of NDEBUG	2015-02-19 05:30:16 +00:00
DeltaAlgorithm.cpp
Dwarf.cpp	Support: Add dwarf::getOperationEncoding()	2015-02-13 01:05:00 +00:00
DynamicLibrary.cpp
Errno.cpp
ErrorHandling.cpp
FileOutputBuffer.cpp	Support: Improve performance of FileOutputBuffer on Windows	2015-03-06 06:07:32 +00:00
FileUtilities.cpp
FoldingSet.cpp
FormattedStream.cpp
GraphWriter.cpp
Hashing.cpp
Host.cpp	We require MSVC 1800 as our minimum, so these checks can safely go away; NFC.	2015-02-16 18:23:00 +00:00
IntEqClasses.cpp
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
LEB128.cpp
LineIterator.cpp
LLVMBuild.txt
Locale.cpp
LockFileManager.cpp	[Support] Increase timeout for the LockFileManager back to 5 mins.	2015-03-04 22:54:38 +00:00
Makefile
ManagedStatic.cpp
MathExtras.cpp
MD5.cpp
Memory.cpp
MemoryBuffer.cpp
MemoryObject.cpp
Mutex.cpp
Options.cpp
Path.cpp	Don't treat .foo as two path components in path::iterators	2015-03-10 00:04:29 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp	Fix the preprocessor checks used to determine if backtraces have been enabled.	2015-01-29 07:53:13 +00:00
Process.cpp
Program.cpp
RandomNumberGenerator.cpp
raw_os_ostream.cpp
raw_ostream.cpp	Format: Modernize using variadic templates.	2015-02-15 22:15:41 +00:00
README.txt.system
regcclass.h
regcname.h
regcomp.c	Use wider type for overflow check on LLP64 platforms like Win64, found by clang-cl -Wtautological	2015-02-26 21:07:30 +00:00
regengine.inc
regerror.c
regex2.h
regex_impl.h
Regex.cpp
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp
ScaledNumber.cpp
SearchForAddressOfSpecialSymbol.cpp
Signals.cpp
SmallPtrSet.cpp	Sync the __builtin_expects for our 3 quadratically probed hash table implementations.	2015-02-23 16:41:36 +00:00
SmallVector.cpp
SourceMgr.cpp
SpecialCaseList.cpp	SpecialCaseList: Add support for parsing multiple input files.	2015-02-04 17:39:48 +00:00
Statistic.cpp
StreamingMemoryObject.cpp	Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition.	2015-02-15 22:54:22 +00:00
StringExtras.cpp
StringMap.cpp	Sync the __builtin_expects for our 3 quadratically probed hash table implementations.	2015-02-23 16:41:36 +00:00
StringPool.cpp
StringRef.cpp
SystemUtils.cpp
TargetRegistry.cpp
Threading.cpp
ThreadLocal.cpp
Timer.cpp
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp	Add support for Nuxi CloudABI.	2015-03-09 18:40:45 +00:00
Twine.cpp	Remove unnecessary llvm:: qualification.	2014-02-26 23:27:16 +00:00
Unicode.cpp
Valgrind.cpp	Provide the same ABI regardless of NDEBUG	2015-02-19 05:30:16 +00:00
Watchdog.cpp
YAMLParser.cpp	Demote vectors to arrays. No functionality change.	2015-02-19 15:26:17 +00:00
YAMLTraits.cpp	Detect malformed YAML sequence in yaml::Input::beginSequence()	2015-03-02 17:26:43 +00:00

README.txt.system

Design Of lib/System
====================

The software in this directory is designed to completely shield LLVM from any
and all operating system specific functionality. It is not intended to be a
complete operating system wrapper (such as ACE), but only to provide the
functionality necessary to support LLVM.

The software located here, of necessity, has very specific and stringent design
rules. Violation of these rules means that cracks in the shield could form and
the primary goal of the library is defeated. By consistently using this library,
LLVM becomes more easily ported to new platforms since the only thing requiring
porting is this library.

Complete documentation for the library can be found in the file:
  llvm/docs/SystemLibrary.html
or at this URL:
  http://llvm.org/docs/SystemLibrary.html

While we recommend that you read the more detailed documentation, for the
impatient, here's a high level summary of the library's requirements.

 1. No system header files are to be exposed through the interface.
 2. Std C++ and Std C header files are okay to be exposed through the interface.
 3. No exposed system-specific functions.
 4. No exposed system-specific data.
 5. Data in lib/System classes must use only simple C++ intrinsic types.
 6. Errors are handled by returning "true" and setting an optional std::string
 7. Library must not throw any exceptions, period.
 8. Interface functions must not have throw() specifications.
 9. No duplicate function impementations are permitted within an operating
    system class.

To accomplish these requirements, the library has numerous design criteria that
must be satisfied. Here's a high level summary of the library's design criteria:

 1. No unused functionality (only what LLVM needs)
 2. High-Level Interfaces
 3. Use Opaque Classes
 4. Common Implementations
 5. Multiple Implementations
 6. Minimize Memory Allocation
 7. No Virtual Methods