llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-18 10:31:57 +00:00

History

Jakob Stoklund Olesen 03ef449917 Reset StringMap's NumTombstones on clears and rehashes. StringMap was not properly updating NumTombstones after a clear or rehash. This was not fatal until now because the table was growing faster than NumTombstones could, but with the previous change of preventing infinite growth of the table the invariant (NumItems + NumTombstones <= NumBuckets) stopped being observed, causing infinite loops in certain situations. Patch by José Fonseca! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128567 91177308-0d34-0410-b5e6-96231b3b80d8		2011-03-30 18:32:51 +00:00
..
Unix	revert r128199 until it can be made to work with Frontend/dependency-gen.c.	2011-03-24 16:43:37 +00:00
Windows	Windows/PathV2.inc: [PR8520] Recognize "NUL" as special (character) file.	2011-03-16 02:53:32 +00:00
Allocator.cpp
APFloat.cpp	Avoid turning a floating point division with a constant power of two into a denormal multiplication.	2011-03-30 17:02:54 +00:00
APInt.cpp	Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.	2011-03-27 14:26:13 +00:00
APSInt.cpp
Atomic.cpp
circular_raw_ostream.cpp
CMakeLists.txt
CommandLine.cpp	Support/CommandLine: Fix LookupNearestOption to also search extra option names.	2011-01-24 17:27:17 +00:00
ConstantRange.cpp
COPYRIGHT.regex
CrashRecoveryContext.cpp	Properly initialize all fields in CrashReporterCleanupContext. This caused the buildbot failure earlier.	2011-03-22 04:33:13 +00:00
DAGDeltaAlgorithm.cpp
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp
Dwarf.cpp	Provide tag strings for llvm specific tags.	2011-02-18 23:06:29 +00:00
DynamicLibrary.cpp
Errno.cpp	lib/Support/Errno.cpp: Check strerror_s() with HAVE_DECL_STRERROR_S in config.h.*.	2011-02-09 04:18:48 +00:00
ErrorHandling.cpp
FileUtilities.cpp
FoldingSet.cpp
FormattedStream.cpp
GraphWriter.cpp
Host.cpp
IncludeFile.cpp
IntEqClasses.cpp
IntervalMap.cpp
IsInf.cpp
IsNAN.cpp
Makefile
ManagedStatic.cpp
Memory.cpp
MemoryBuffer.cpp	We don't need a null terminator for the output file.	2011-03-22 19:20:47 +00:00
MemoryObject.cpp
Mutex.cpp	Check the errorcode.	2011-02-18 00:47:07 +00:00
Path.cpp	Support/PathV2: Add identify_magic.	2011-01-15 20:39:36 +00:00
PathV2.cpp	Implement a function from PathV2 whose definition is missing.	2011-02-15 17:51:19 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp
Process.cpp
Program.cpp
raw_os_ostream.cpp
raw_ostream.cpp	raw_ostream: [PR6745] Tweak formatting (double)%e for Windows hosts.	2011-03-18 09:30:10 +00:00
README.txt.system
regcclass.h
regcname.h
regcomp.c	lib/Support/regcomp.c: Fix cygwin warning.	2011-03-08 12:25:29 +00:00
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	Prevent infinite growth of SmallPtrSet instances.	2011-03-30 18:32:48 +00:00
SmallVector.cpp
SourceMgr.cpp
Statistic.cpp	Support: Add llvm::AreStatisticsEnabled().	2011-02-26 23:17:12 +00:00
StringExtras.cpp
StringMap.cpp	Reset StringMap's NumTombstones on clears and rehashes.	2011-03-30 18:32:51 +00:00
StringPool.cpp
StringRef.cpp
system_error.cpp
SystemUtils.cpp
TargetRegistry.cpp
Threading.cpp
ThreadLocal.cpp
Timer.cpp
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp	Add scei vendor	2011-03-15 21:51:56 +00:00
Twine.cpp
Valgrind.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