Chandler Carruth 45fb79bc54 Make a somewhat subtle change in the logic of block placement. Sometimes ... the loop header has a non-loop predecessor which has been pre-fused into its chain due to unanalyzable branches. In this case, rotating the header into the body of the loop in order to place a loop exit at the bottom of the loop is a Very Bad Idea as it makes the loop non-contiguous. I'm working on a good test case for this, but it's a bit annoynig to craft. I should get one shortly, but I'm submitting this now so I can begin the (lengthy) performance analysis process. An initial run of LNT looks really, really good, but there is too much noise there for me to trust it much. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154395 91177308-0d34-0410-b5e6-96231b3b80d8		2012-04-10 13:35:57 +00:00
..
Analysis	Fix 12513: Loop unrolling breaks with indirect branches.	2012-04-10 05:14:42 +00:00
Archive	Include cstdio in a few place that depended on getting it transitively through StringExtras.h	2012-03-23 11:35:30 +00:00
AsmParser
Bitcode
CodeGen	Make a somewhat subtle change in the logic of block placement. Sometimes	2012-04-10 13:35:57 +00:00
DebugInfo	Fix a C++11 UDL conflict.	2012-04-04 20:33:56 +00:00
ExecutionEngine	EngineBuilder::create is expected to take ownership of the TargetMachine passed to it. Delete it on error or when we create an interpreter that doesn't need it.	2012-04-08 14:53:14 +00:00
Linker	It's possible for two types, which are isomorphic, to be added to the	2012-03-23 23:17:38 +00:00
MC	Use the correct section types on Solaris for unwind data on both x86 and x86-64.	2012-04-10 11:44:33 +00:00
Object	Add a constructor for DataRefImpl and remove excess initialization.	2012-04-10 01:54:44 +00:00
Support	In MemoryBuffer::getOpenFile() make sure that the buffer is null-terminated if	2012-04-05 04:23:56 +00:00
TableGen
Target	Fix a long standing tail call optimization bug. When a libcall is emitted	2012-04-10 01:51:00 +00:00
Transforms	Fix 12513: Loop unrolling breaks with indirect branches.	2012-04-10 05:14:42 +00:00
VMCore	Express the number of ULPs in fpaccuracy metadata as a real rather than a	2012-04-10 08:22:43 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile