llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-03 14:08:57 +00:00

History

Tim Northover 7b837d8c75 ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8		2014-03-29 10:18:08 +00:00
..
Unix	ARM64: initial backend import	2014-03-29 10:18:08 +00:00
Windows	Windows: canonicalise the default windows triple	2014-03-29 01:08:53 +00:00
Allocator.cpp	[Allocator Cleanup] Move generic pointer alignment helper out of an	2014-03-28 09:08:14 +00:00
APFloat.cpp	APFloat: Add a move ctor and operator=	2014-03-04 20:26:51 +00:00
APInt.cpp
APSInt.cpp
ARMBuildAttrs.cpp
Atomic.cpp
BlockFrequency.cpp
BranchProbability.cpp
circular_raw_ostream.cpp
CMakeLists.txt	[Modules] Move the ConstantRange class into the IR library. This is	2014-03-04 12:24:34 +00:00
CommandLine.cpp	Replace OwningPtr<T> with std::unique_ptr<T>.	2014-03-06 05:51:42 +00:00
Compression.cpp	Replace OwningPtr<T> with std::unique_ptr<T>.	2014-03-06 05:51:42 +00:00
ConvertUTF.c
ConvertUTFWrapper.cpp
COPYRIGHT.regex
CrashRecoveryContext.cpp	Remove dependence on std::function.	2014-03-04 22:13:07 +00:00
DAGDeltaAlgorithm.cpp	[C++11] Remove 'virtual' keyword from methods marked with 'override' keyword.	2014-03-10 03:53:12 +00:00
DataExtractor.cpp
DataStream.cpp	[C++11] Remove 'virtual' keyword from methods marked with 'override' keyword.	2014-03-10 03:53:12 +00:00
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp
Dwarf.cpp
DynamicLibrary.cpp
Errno.cpp
ErrorHandling.cpp	Roll back the ConstStringRef change for now	2014-01-27 05:24:39 +00:00
FileOutputBuffer.cpp	[C++11] Add overloads for externally used OwningPtr functions.	2014-03-05 10:27:34 +00:00
FileUtilities.cpp	Replace OwningPtr<T> with std::unique_ptr<T>.	2014-03-06 05:51:42 +00:00
FoldingSet.cpp
FormattedStream.cpp
GraphWriter.cpp
Hashing.cpp
Host.cpp
IncludeFile.cpp
IntEqClasses.cpp
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
IsInf.cpp
IsNAN.cpp
LEB128.cpp	Don't inline get[S\|U]LEB128Size() until they are proved to be hot.	2014-02-22 15:39:39 +00:00
LineIterator.cpp
LLVMBuild.txt
Locale.cpp
LockFileManager.cpp	[Support] Follow up to r204426, for LockFileManager, make the given path absolute so relative paths are properly handled in both Windows and Unix.	2014-03-21 21:45:07 +00:00
Makefile
ManagedStatic.cpp	Revert "[C++11] Replace LLVM atomics with std::atomic."	2014-03-03 18:02:34 +00:00
MD5.cpp
Memory.cpp
MemoryBuffer.cpp	[C++11] Remove 'virtual' keyword from methods marked with 'override' keyword.	2014-03-10 03:53:12 +00:00
MemoryObject.cpp
Mutex.cpp	Remove unnecessary call to pthread_mutexattr_setpshared()	2014-01-29 00:20:44 +00:00
Path.cpp	Remove dead and incorrect code.	2014-03-20 17:39:04 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp
Process.cpp	Disable Visual C++ warning 4722 about aborting a destructor,	2014-03-25 08:42:49 +00:00
Program.cpp
raw_os_ostream.cpp
raw_ostream.cpp	Revert "Use StringRef in raw_fd_ostream constructor"	2014-02-27 02:09:10 +00:00
README.txt.system
regcclass.h
regcname.h
regcomp.c
regengine.inc
regerror.c
regex2.h
regex_impl.h
Regex.cpp
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp
SearchForAddressOfSpecialSymbol.cpp
Signals.cpp
SmallPtrSet.cpp	[C++11] Remove the R-value reference #if usage from the ADT and Support	2014-03-01 09:27:28 +00:00
SmallVector.cpp
SourceMgr.cpp	Replace OwningPtr<T> with std::unique_ptr<T>.	2014-03-06 05:51:42 +00:00
Statistic.cpp	Revert "[C++11] Replace LLVM atomics with std::atomic."	2014-03-03 18:02:34 +00:00
StreamableMemoryObject.cpp	[C++11] Remove 'virtual' keyword from methods marked with 'override' keyword.	2014-03-10 03:53:12 +00:00
StringExtras.cpp
StringMap.cpp
StringPool.cpp
StringRef.cpp	Replace OwningPtr<T> with std::unique_ptr<T>.	2014-03-06 05:51:42 +00:00
StringRefMemoryObject.cpp
system_error.cpp	[C++11] Remove 'virtual' keyword from methods marked with 'override' keyword.	2014-03-10 03:53:12 +00:00
SystemUtils.cpp
TargetRegistry.cpp	[C++11] Revert uses of lambdas with array_pod_sort.	2014-03-07 21:52:38 +00:00
Threading.cpp	Revert "[C++11] Replace LLVM atomics with std::atomic."	2014-03-03 18:02:34 +00:00
ThreadLocal.cpp	[C++11] Replace LLVM_STATIC_ASSERT with static_assert, we now have	2014-03-02 13:10:45 +00:00
Timer.cpp	Replace OwningPtr<T> with std::unique_ptr<T>.	2014-03-06 05:51:42 +00:00
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp	ARM64: initial backend import	2014-03-29 10:18:08 +00:00
Twine.cpp	Remove unnecessary llvm:: qualification.	2014-02-26 23:27:16 +00:00
Unicode.cpp
Valgrind.cpp
Watchdog.cpp
YAMLParser.cpp	remove a bunch of unused private methods	2014-03-23 17:09:26 +00:00
YAMLTraits.cpp

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