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* Cost model support for lowered math builtins.Benjamin Kramer2013-02-281-0/+11
| | | | | | | | | | We make the cost for calling libm functions extremely high as emitting the calls is expensive and causes spills (on x86) so performance suffers. We still vectorize important calls like ceilf and friends on SSE4.1. and fabs. Differential Revision: http://llvm-reviews.chandlerc.com/D466 llvm-svn: 176287
* Cost model: Add check for reverse shuffles to CostModel analysisArnold Schwaighofer2013-02-121-0/+18
| | | | | | | | | | Check for reverse shuffles in the CostModel analysis pass and query TargetTransform info accordingly. This allows us we can write test cases for reverse shuffles. radar://13171406 llvm-svn: 174932
* ARM cost model: Address computation in vector mem ops not freeArnold Schwaighofer2013-02-081-0/+5
| | | | | | | | | | | | | | | Adds a function to target transform info to query for the cost of address computation. The cost model analysis pass now also queries this interface. The code in LoopVectorize adds the cost of address computation as part of the memory instruction cost calculation. Only there, we know whether the instruction will be scalarized or not. Increase the penality for inserting in to D registers on swift. This becomes necessary because we now always assume that address computation has a cost and three is a closer value to the architecture. radar://13097204 llvm-svn: 174713
* Move TargetTransformInfo to live under the Analysis library. This noChandler Carruth2013-01-071-1/+1
| | | | | | | longer would violate any dependency layering and it is in fact an analysis. =] llvm-svn: 171686
* Switch the cost model analysis over to just the TTI interface.Chandler Carruth2013-01-051-20/+15
| | | | llvm-svn: 171619
* Move all of the header files which are involved in modelling the LLVM IRChandler Carruth2013-01-021-3/+3
| | | | | | | | | | | | | | | | | | | | | into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. llvm-svn: 171366
* Update the docs of the cost model.Nadav Rotem2012-12-241-3/+6
| | | | llvm-svn: 171016
* constify the cost APINadav Rotem2012-12-031-7/+7
| | | | llvm-svn: 169172
* Use the new script to sort the includes of every file under lib.Chandler Carruth2012-12-031-2/+2
| | | | | | | | | | | | | | | | | Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] llvm-svn: 169131
* CostModel: add support for Vector Insert and Extract.Nadav Rotem2012-11-021-0/+18
| | | | llvm-svn: 167329
* Add a cost model analysis that allows us to estimate the cost of IR-level ↵Nadav Rotem2012-11-021-0/+175
instructions. llvm-svn: 167324
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