Hal Finkel 245b657ab6 BBVectorize: Better use of TTI->getShuffleCost ... When flipping the pair of subvectors that form a vector, if the vector length is 2, we can use the SK_Reverse shuffle kind to get more-accurate cost information. Also we can use the SK_ExtractSubvector shuffle kind to get accurate subvector extraction costs. The current cost model implementations don't yet seem complex enough for this to make a difference (thus, there are no test cases with this commit), but it should help in future. Depending on how the various targets optimize and combine shuffles in practice, we might be able to get more-accurate costs by combining the costs of multiple shuffle kinds. For example, the cost of flipping the subvector pairs could be modeled as two extractions and two subvector insertions. These changes, however, should probably be motivated by specific test cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173621 91177308-0d34-0410-b5e6-96231b3b80d8		2013-01-27 20:07:01 +00:00
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Analysis	ConstantFolding: Add a missing folding that leads to a miscompile.	2013-01-24 16:28:28 +00:00
Archive	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
AsmParser	Use the AttributeSet instead of AttributeWithIndex.	2013-01-27 02:24:02 +00:00
Bitcode	Use the AttributeSet instead of AttributeWithIndex object.	2013-01-27 00:36:48 +00:00
CodeGen	Legalizer: Add an assert and tweak a comment to clarify the assumptions this code makes.	2013-01-27 15:04:43 +00:00
DebugInfo	DWARFDebugLine.cpp: Fix true path. Did you forget "return true" here?	2013-01-26 01:45:06 +00:00
ExecutionEngine	Add support for applying in-memory relocations to the .debug_line section and, in the case of ELF files, using symbol addresses when available for relocations to the .debug_info section. Also extending the llvm-rtdyld tool to add the ability to dump line number information for testing purposes.	2013-01-25 22:50:58 +00:00
IR	In the AttributeSetImpl c'tor, fill in the AttrNodes data structure with the attributes being passed in.	2013-01-27 12:50:02 +00:00
Linker	[Linker] Kill Linker::LoadObject which is dead, and drop the BitReader dependency again.	2013-01-18 19:37:11 +00:00
MC	Clean up assignment of CalleeSaveStackSlotSize: get rid of the default and explicitly set this in every target that needs to change it from the default.	2013-01-23 16:22:04 +00:00
Object	When encountering an unknown file format, ObjectFile::createObjectFile should	2013-01-25 20:53:41 +00:00
Option	Resort the #include lines in include/... and lib/... with the	2013-01-02 10:22:59 +00:00
Support	APFloat: Make sure that we get a well-formed x87 NaN when converting from a smaller type.	2013-01-25 17:01:00 +00:00
TableGen	Add an addition operator to TableGen	2013-01-25 14:49:08 +00:00
Target	Convert the CPP backend to use the AttributeSet instead of AttributeWithIndex.	2013-01-27 01:22:51 +00:00
Transforms	BBVectorize: Better use of TTI->getShuffleCost	2013-01-27 20:07:01 +00:00
CMakeLists.txt	Rename VMCore directory to IR.	2013-01-02 09:10:48 +00:00
LLVMBuild.txt	Rename VMCore directory to IR.	2013-01-02 09:10:48 +00:00
Makefile	Rename VMCore directory to IR.	2013-01-02 09:10:48 +00:00