Chandler Carruth 51901d85f7 Prevent rotating the blocks of a loop (and thus getting a backedge to be ... fallthrough) in cases where we might fail to rotate an exit to an outer loop onto the end of the loop chain. Having *some* rotation, but not performing this rotation, is the primary fix of thep performance regression with -enable-block-placement for Olden/em3d (a whopping 30% regression). Still working on reducing the test case that actually exercises this and the new rotation strategy out of this code, but I want to check if this regresses other test cases first as that may indicate it isn't the correct fix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145195 91177308-0d34-0410-b5e6-96231b3b80d8		2011-11-27 20:18:00 +00:00
..
Analysis	Move code into anonymous namespaces.	2011-11-26 23:01:57 +00:00
Archive
AsmParser	remove asmparsing and documentation support for "volatile load", which was only produced by LLVM 2.9 and earlier. LLVM 3.0 and later prefers "load volatile".	2011-11-27 06:56:53 +00:00
Bitcode	remove autoupgrade support for really old-style debug info intrinsics.	2011-11-27 06:18:33 +00:00
CodeGen	Prevent rotating the blocks of a loop (and thus getting a backedge to be	2011-11-27 20:18:00 +00:00
DebugInfo
ExecutionEngine	Sink codegen optimization level into MCCodeGenInfo along side relocation model	2011-11-16 08:38:26 +00:00
Linker
MC	This patch addresses gp relative fixups/relocations for jump tables.	2011-11-23 22:18:04 +00:00
Object	Revert r145180 as it is causing test failures on all the bots.	2011-11-27 10:37:47 +00:00
Support	Fix APFloat::convert so that it handles narrowing conversions correctly; it	2011-11-26 03:38:02 +00:00
TableGen	ARM vldm and vstm VFP instructions can take a data type suffix.	2011-11-11 23:08:10 +00:00
Target	Add several new instructions supported by the latest MicroBlaze.	2011-11-27 05:16:58 +00:00
Transforms	Move code into anonymous namespaces.	2011-11-26 23:01:57 +00:00
VMCore	Eli managed to kill off llvm.membarrier in llvm 3.0 also, this means	2011-11-27 08:42:07 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile