Hal Finkel 65309660fa Begin incorporating target information into BBVectorize. ... This is the first of several steps to incorporate information from the new TargetTransformInfo infrastructure into BBVectorize. Two things are done here: 1. Target information is used to determine if it is profitable to fuse two instructions. This means that the cost of the vector operation must not be more expensive than the cost of the two original operations. Pairs that are not profitable are no longer considered (because current cost information is incomplete, for intrinsics for example, equal-cost pairs are still considered). 2. The 'cost savings' computed for the profitability check are also used to rank the DAGs that represent the potential vectorization plans. Specifically, for nodes of non-trivial depth, the cost savings is used as the node weight. The next step will be to incorporate the shuffle costs into the DAG weighting; this will give the edges of the DAG weights as well. Once that is done, when target information is available, we should be able to dispense with the depth heuristic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166716 91177308-0d34-0410-b5e6-96231b3b80d8		2012-10-25 21:12:23 +00:00
..
Analysis	DependenceAnalysis: Push #includes down into the implementation.	2012-10-25 16:15:22 +00:00
Archive	Mark checkSignature const, and in turn stop casting away const from	2012-09-05 22:09:23 +00:00
AsmParser	Special calling conventions for Intel OpenCL built-in library.	2012-10-24 14:46:16 +00:00
Bitcode	Move the Attributes::Builder outside of the Attributes class and into its own class named AttrBuilder. No functionality change.	2012-10-15 20:35:56 +00:00
CodeGen	Stop running the machine code verifier unconditionally.	2012-10-25 00:05:39 +00:00
DebugInfo	Use a typedef to reduce some typing and reformat code accordingly.	2012-10-16 23:46:25 +00:00
ExecutionEngine	PowerPC: Initial support for PowerPC64 MCJIT	2012-10-25 13:13:48 +00:00
Linker	Move the "findUsedStructTypes" functionality outside of the Module class.	2012-08-03 00:30:35 +00:00
MC	[ms-inline asm] Add support for creating AsmRewrites in the target specific	2012-10-25 20:41:34 +00:00
Object	Cosmetic changes	2012-10-10 01:45:52 +00:00
Support	Support: Don't remove special files on signals.	2012-10-17 16:30:54 +00:00
TableGen	Remove exception handling usage from tblgen.	2012-10-25 20:33:17 +00:00
Target	[ms-inline asm] Add support for creating AsmRewrites in the target specific	2012-10-25 20:41:34 +00:00
Transforms	Begin incorporating target information into BBVectorize.	2012-10-25 21:12:23 +00:00
VMCore	Add some cleanup to the DataLayout changes requested by Chandler.	2012-10-24 18:36:13 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile