Chris Lattner 4ac569b2c6 Partially revert Doug's PCH validation patch (r98585). ... This patch completely defeated the "passing in a prestat'd size to MemoryBuffer" optimization, leading to an extra fstat call for every buffer opened, in order to find out if the datestamp and size of the file on disk matches what is in the stat cache. I fully admit that I don't completely understand what is going on here: why punish code when a stat cache isn't in use? what is the point of a stat cache if you have to turn around and stat stuff to validate it? To resolve both these issues, just drop the modtime check and check the file size, which is the important thing anyway. This should also resolve PR6812, because presumably windows is stable when it comes to file sizes. If the modtime is actually important, we should get it and keep it on the first stat. This eliminates 833 fstat syscalls when processing Cocoa.h, speeding up system time on -Eonly Cocoa.h from 0.041 to 0.038s. llvm-svn: 120001		2010-11-23 06:09:11 +00:00
clang	Partially revert Doug's PCH validation patch (r98585).	2010-11-23 06:09:11 +00:00
compiler-rt	license change	2010-11-16 22:13:33 +00:00
debuginfo-tests	Zap white spaces, test commit email.	2010-11-10 18:11:11 +00:00
libcxx	N3191: C++ Timeout Specification	2010-11-20 19:16:30 +00:00
lldb	When we resolve a forward declaration type, be sure to put it into the m_die_to_type map so we don't assert later when someone tries to resolve the type.	2010-11-20 19:16:50 +00:00
llvm	Reuse data fragments while lowering. Patch by David Meyer.	2010-11-23 05:49:35 +00:00