Chris Lattner 7f88d9043f Reimplement MemoryBuffer::getFile with three enhancements: ... 1) stop using MappedFile. 2) if profitable use the sys::path::MapInFilePages api to read the file. 3) otherwise fallback to read. When sys::path::MapInFilePages is implemented, this provides several benefits: #1: this avoids fragmenting memory for small files. #2: this avoids extraneous stat calls when the file size is known. #3: this only keeps the file descriptor open while reading the file, not for the duration of the lifetime of the memory buffer. This fixes a serious clang FD 'leak' problem. I believe that this will work on a win32 machine, but I don't have one to test on. I'd appreciate it if someone could check. llvm-svn: 49031		2008-04-01 06:05:21 +00:00
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Allocator.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
Annotation.cpp	Add explicit keywords.	2008-02-20 16:44:09 +00:00
APFloat.cpp	Add a method to APFloat to convert directly from APInt.	2008-02-29 01:26:11 +00:00
APInt.cpp	A quick nm audit turned up several fixed tables and objects that were	2008-03-25 21:45:14 +00:00
APSInt.cpp	Added FoldingSet style 'profiling' support for APSInt.	2008-01-19 04:31:12 +00:00
CommandLine.cpp	Add explicit keywords.	2008-03-25 22:06:05 +00:00
ConstantRange.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
Debug.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
Dwarf.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
FileUtilities.cpp	Change DiffFilesWithTolerance to be written in terms of MemoryBuffer,	2008-04-01 03:39:49 +00:00
FoldingSet.cpp	Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.	2008-02-20 11:08:44 +00:00
GraphWriter.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
IsInf.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
IsNAN.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
Makefile	remove attribution from lib Makefiles.	2007-12-29 20:09:26 +00:00
ManagedStatic.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
MemoryBuffer.cpp	Reimplement MemoryBuffer::getFile with three enhancements:	2008-04-01 06:05:21 +00:00
PluginLoader.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
SlowOperationInformer.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
SmallPtrSet.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
Statistic.cpp	Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.	2008-02-20 11:08:44 +00:00
Streams.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
StringExtras.cpp	Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.	2008-02-20 11:08:44 +00:00
StringMap.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
StringPool.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
SystemUtils.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
Timer.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00