llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-10-16 12:24:44 +00:00

History

Peter Collingbourne aa80e61b0d Introduce Regex::isLiteralERE function. This will be used to implement an optimisation for literal entries in special case lists. Differential Revision: http://llvm-reviews.chandlerc.com/D1278 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187731 91177308-0d34-0410-b5e6-96231b3b80d8		2013-08-05 17:47:59 +00:00
..
Unix	Make file_status::getUniqueID const.	2013-07-29 21:55:38 +00:00
Windows	Fix windows' implementation of status when a file doesn't exist.	2013-07-31 00:10:25 +00:00
Allocator.cpp
APFloat.cpp	[APFloat] Make all arithmetic operations with NaN produce positive NaNs.	2013-07-27 21:49:25 +00:00
APInt.cpp
APSInt.cpp
Atomic.cpp
BlockFrequency.cpp	Fix a bad overflow check pointed out by Ben.	2013-06-28 21:51:18 +00:00
BranchProbability.cpp
circular_raw_ostream.cpp
CMakeLists.txt
CommandLine.cpp	Implement TokenizeWindowsCommandLine.	2013-07-30 19:03:20 +00:00
Compression.cpp
ConstantRange.cpp	Don't use a potentially expensive shift if all we want is one set bit.	2013-07-11 16:05:50 +00:00
ConvertUTF.c
ConvertUTFWrapper.cpp	[Support] Add a Unicode conversion wrapper from UTF16 to UTF8	2013-07-16 17:14:33 +00:00
COPYRIGHT.regex
CrashRecoveryContext.cpp
DAGDeltaAlgorithm.cpp
DataExtractor.cpp
DataStream.cpp	Add a wrapper for open.	2013-07-16 19:44:17 +00:00
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp
Dwarf.cpp	Add DW_AT_GNU_odr_signature to the set of dwarf attributes.	2013-07-14 22:02:31 +00:00
DynamicLibrary.cpp
Errno.cpp	Remove dead or useless header checks from cmake and autoconf	2013-07-26 16:54:23 +00:00
ErrorHandling.cpp	[Support] Fix some warnings when self-hosting clang on Windows	2013-07-16 14:04:08 +00:00
FileOutputBuffer.cpp	Create files with the correct permission instead of changing it afterwards.	2013-07-08 15:22:09 +00:00
FileUtilities.cpp	MemoryBuffer::getFile handles zero sized files, no need to duplicate the test.	2013-07-10 17:30:39 +00:00
FoldingSet.cpp
FormattedStream.cpp
GraphWriter.cpp	Find xdot or xdot.py.	2013-07-08 20:24:54 +00:00
Hashing.cpp
Host.cpp	Some Intel Penryn CPUs come with SSE4 disabled. Detect them as core 2.	2013-07-29 11:02:08 +00:00
IncludeFile.cpp
IntEqClasses.cpp
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
IsInf.cpp
IsNAN.cpp
LLVMBuild.txt
Locale.cpp
LocaleGeneric.inc
LocaleWindows.inc
LocaleXlocale.inc
LockFileManager.cpp	Add a createUniqueFile function and switch llvm's users of unique_file.	2013-07-05 21:01:08 +00:00
Makefile
ManagedStatic.cpp
MD5.cpp
Memory.cpp
MemoryBuffer.cpp	Split getOpenFile into getOpenFile and getOpenFileSlice.	2013-07-23 20:25:01 +00:00
MemoryObject.cpp
Mutex.cpp
Path.cpp	Include st_dev to make the result of getUniqueID actually unique.	2013-07-29 21:26:49 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp
Process.cpp
Program.cpp
raw_os_ostream.cpp
raw_ostream.cpp	raw_ostream.cpp: Introduce <fcntl.h> to let O_BINARY provided. Or, llvm::outs() would be set to O_TEXT by default.	2013-07-17 02:21:10 +00:00
README.txt.system
regcclass.h
regcname.h
regcomp.c
regengine.inc
regerror.c
regex2.h
regex_impl.h
Regex.cpp	Introduce Regex::isLiteralERE function.	2013-08-05 17:47:59 +00:00
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp
SearchForAddressOfSpecialSymbol.cpp
Signals.cpp
SmallPtrSet.cpp
SmallVector.cpp
SourceMgr.cpp	Fix size_t -> uint warnings with MSVC 64-bit build	2013-07-20 00:20:10 +00:00
Statistic.cpp
StreamableMemoryObject.cpp
StringExtras.cpp
StringMap.cpp
StringPool.cpp
StringRef.cpp	Revert r185852.	2013-07-08 20:27:34 +00:00
StringRefMemoryObject.cpp
system_error.cpp
SystemUtils.cpp
TargetRegistry.cpp
Threading.cpp
ThreadLocal.cpp
Timer.cpp	Add a wrapper for open.	2013-07-16 19:44:17 +00:00
TimeValue.cpp
ToolOutputFile.cpp	Add a wrapper for open.	2013-07-16 19:44:17 +00:00
Triple.cpp	[PowerPC] Support powerpc64le as a syntax-checking target.	2013-07-26 01:35:43 +00:00
Twine.cpp
Valgrind.cpp
Watchdog.cpp
YAMLParser.cpp
YAMLTraits.cpp	Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.	2013-07-04 01:31:24 +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