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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Analysis	Set blockBegin to point to the beginning of the block,	2008-03-31 22:08:00 +00:00
Archive	change the archive stuff to use MemoryBuffer instead of mappedfile.	2008-04-01 04:26:46 +00:00
AsmParser	Add explicit keywords.	2008-03-25 22:06:05 +00:00
Bitcode	Add explicit keywords.	2008-03-25 22:06:05 +00:00
CodeGen	More soft fp fixes.	2008-04-01 02:18:22 +00:00
Debugger	rewrite SourceFile to be in terms of MemoryBuffer, not MappedFile.	2008-04-01 03:59:34 +00:00
ExecutionEngine	Fix "Control reaches the end of non-void function" warnings,	2008-03-30 18:22:13 +00:00
Linker	Ultimately resolve aliases during linking, if possible	2008-03-11 22:51:09 +00:00
Support	Reimplement MemoryBuffer::getFile with three enhancements:	2008-04-01 06:05:21 +00:00
System	Stub out some sys::Path::MapInFilePages/UnMapFilePages methods.	2008-04-01 06:00:12 +00:00
Target	Unbreak ARM / Thumb soft FP support.	2008-04-01 01:50:16 +00:00
Transforms	Emit exception handling info for functions which are	2008-03-31 23:40:23 +00:00
VMCore	Don't eliminate bitcast instructions that change the type of a pointer	2008-03-31 00:22:16 +00:00
Makefile	remove attribution from lib Makefiles.	2007-12-29 20:09:26 +00:00