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path: root/utils/TableGen/DAGISelMatcherGen.cpp
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* Unconstify InitsDavid Greene2011-07-29
| | | | | | | | Remove const qualifiers from Init references, per Chris' request. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136531 91177308-0d34-0410-b5e6-96231b3b80d8
* [AVX] Constify InitsDavid Greene2011-07-29
| | | | | | | Make references to Inits const everywhere. This is the final step before making them unique. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136485 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r134921, 134917, 134908 and 134907. They're causing failuresEric Christopher2011-07-11
| | | | | | | in multiple buildbots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134936 91177308-0d34-0410-b5e6-96231b3b80d8
* [AVX] Make Inits FoldableDavid Greene2011-07-11
| | | | | | | | | | | | | | | | | | Manage Inits in a FoldingSet. This provides several benefits: - Memory for Inits is properly managed - Duplicate Inits are folded into Flyweights, saving memory - It enforces const-correctness, protecting against certain classes of bugs The above benefits allow Inits to be used in more contexts, which in turn provides more dynamism to TableGen. This enhanced capability will be used by the AVX code generator to a fold common patterns together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134907 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for alternative register names, useful for instructions whose ↵Owen Anderson2011-06-27
| | | | | | | | | operands are logically equivalent to existing registers, but happen to be printed specially. For example, an instruciton that prints d0[0] instead of s0. Patch by Jim Grosbach. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133940 91177308-0d34-0410-b5e6-96231b3b80d8
* Store CodeGenRegisters as pointers so they won't be reallocated.Jakob Stoklund Olesen2011-06-18
| | | | | | | Reuse the CodeGenRegBank DenseMap in a few places that would build their own or use linear search. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133333 91177308-0d34-0410-b5e6-96231b3b80d8
* Give CodeGenRegisterClass a real sorted member set.Jakob Stoklund Olesen2011-06-15
| | | | | | | | | | | Make the Elements vector private and expose an ArrayRef through getOrder() instead. getOrder will eventually provide multiple user-specified allocation orders. Use the sorted member set for member and subclass tests. Clean up a lot of ad hoc searches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133040 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR9947 by placing OPFL_MemRefs on the node using memory operands rather thanCameron Zwarich2011-05-19
| | | | | | | the root if there is only one such node. This leaves only 2 verifier failures in the entire test suite when running "make check". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131677 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach TableGen to pre-calculate register enum values when creating theJim Grosbach2011-03-11
| | | | | | | | | | | | | CodeGenRegister entries. Use this information to more intelligently build the literal register entires in the DAGISel matcher table. Specifically, use a single-byte OPC_EmitRegister entry for registers with a value of less than 256 and OPC_EmitRegister2 entry for registers with a larger value. rdar://9066491 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127456 91177308-0d34-0410-b5e6-96231b3b80d8
* Flag -> Glue, the ongoing sagaChris Lattner2010-12-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122513 91177308-0d34-0410-b5e6-96231b3b80d8
* continue renaming flag -> glue.Chris Lattner2010-12-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122506 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up a bit. Trailing whitespace, hard tabs and 80-columns.Jim Grosbach2010-12-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122337 91177308-0d34-0410-b5e6-96231b3b80d8
* rename MVT::Flag to MVT::Glue. "Flag" is a terrible name forChris Lattner2010-12-21
| | | | | | | | | something that just glues two nodes together, even if it is sometimes used for flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
* factor the operand list (and related fields/operations) out of Chris Lattner2010-11-01
| | | | | | | CodeGenInstruction into its own helper class. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117893 91177308-0d34-0410-b5e6-96231b3b80d8
* zap dead code.Chris Lattner2010-09-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113071 91177308-0d34-0410-b5e6-96231b3b80d8
* We already have this as OperandNode.Eric Christopher2010-08-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110748 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the SubRegIndex TableGen class.Jakob Stoklund Olesen2010-05-24
| | | | | | | This is the beginning of purely symbolic subregister indices, but we need a bit of jiggling before the explicit numeric indices can be completely removed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104492 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a long standing fixme, which required fixing a bunch of otherChris Lattner2010-03-27
| | | | | | | | | | | | | | | issues to get here. We now trim the result type list of the CompleteMatch or MorphNodeTo operation to be the same size as the thing we're matching. this means that if you match (add GPR, GPR) with an instruction that produces a normal result and a flag that we now trim the result in tblgen instead of having to do it dynamically. This exposed a bunch of inconsistencies in result counting that happened to be getting lucky since the days of the old isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99728 91177308-0d34-0410-b5e6-96231b3b80d8
* hoist some funky logic into CodeGenInstructionChris Lattner2010-03-27
| | | | | | | | | | from two places in CodeGenDAGPatterns.cpp, and use it in DAGISelMatcherGen.cpp instead of using an incorrect predicate that happened to get lucky on our current targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99726 91177308-0d34-0410-b5e6-96231b3b80d8
* continue pushing tblgen's support for nodes with multipleChris Lattner2010-03-27
| | | | | | | | | results forward. We can now handle an instruction that produces one implicit def and one result instead of one or the other when not at the root of the pattern. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99725 91177308-0d34-0410-b5e6-96231b3b80d8
* add plumbing for handling multiple result nodes Chris Lattner2010-03-24
| | | | | | | in some more places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99366 91177308-0d34-0410-b5e6-96231b3b80d8
* major surgery on tblgen: generalize TreePatternNodeChris Lattner2010-03-19
| | | | | | | | | | to maintain a list of types (one for each result of the node) instead of a single type. There are liberal hacks added to emulate the old behavior in various situations, but they can start disolving now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98999 91177308-0d34-0410-b5e6-96231b3b80d8
* resolve fixme: we now infer the instruction-level 'isvariadic' bitChris Lattner2010-03-19
| | | | | | | from the pattern if present, and we use it instead of the bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98938 91177308-0d34-0410-b5e6-96231b3b80d8
* add a new SDNPVariadic SDNP node flag, and use it inChris Lattner2010-03-19
| | | | | | | | | dag isel gen instead of instruction properties. This allows the oh-so-useful behavior of matching a variadic non-root node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98934 91177308-0d34-0410-b5e6-96231b3b80d8
* look up instructions by record, not by name.Chris Lattner2010-03-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98904 91177308-0d34-0410-b5e6-96231b3b80d8
* expand tblgen's support for instructions with implicit defs.Chris Lattner2010-03-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98900 91177308-0d34-0410-b5e6-96231b3b80d8
* Completely rewrite tblgen's type inference mechanism,Chris Lattner2010-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | changing the primary datastructure from being a "std::vector<unsigned char>" to being a new TypeSet class that actually has (gasp) invariants! This changes more things than I remember, but one major innovation here is that it enforces that named input values agree in type with their output values. This also eliminates code that transparently assumes (in some cases) that SDNodeXForm input/output types are the same, because this is wrong in many case. This also eliminates a bug which caused a lot of ambiguous patterns to go undetected, where a register class would sometimes pick the first possible type, causing an ambiguous pattern to get arbitrary results. With all the recent target changes, this causes no functionality change! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98534 91177308-0d34-0410-b5e6-96231b3b80d8
* more factoring.Chris Lattner2010-03-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97911 91177308-0d34-0410-b5e6-96231b3b80d8
* zap fixme.Chris Lattner2010-03-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97705 91177308-0d34-0410-b5e6-96231b3b80d8
* now that complexpatterns are all emitted at the end of the matchChris Lattner2010-03-04
| | | | | | | | | sequence, just emit instruction predicates right before them. This exposes yet more factoring opportunitites, shrinking the X86 table to 79144 bytes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97704 91177308-0d34-0410-b5e6-96231b3b80d8
* change the new isel matcher to emit ComplexPattern matchesChris Lattner2010-03-04
| | | | | | | | | | | as the very last thing before node emission. This should dramatically reduce the number of times we do 'MatchAddress' on X86, speeding up compile time. This also improves comments in the tables and shrinks the table a bit, now down to 80506 bytes for x86. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97703 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance comment output to specify what recorded slotChris Lattner2010-03-04
| | | | | | | numbers a ComplexPat will match into. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97696 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite chain handling validation and input TokenFactor handlingChris Lattner2010-03-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | stuff now that we don't care about emulating the old broken behavior of the old isel. This eliminates the 'CheckChainCompatible' check (along with IsChainCompatible) which did an incorrect and inefficient scan *up* the chain nodes which happened as the pattern was being formed and does the validation at the end in HandleMergeInputChains when it forms a structural pattern. This scans "down" the graph, which means that it is quickly bounded by nodes already selected. This also handles token factors that get "trapped" in the dag. Removing the CheckChainCompatible nodes also shrinks the generated tables by about 6K for X86 (down to 83K). There are two pieces remaining before I can nuke PreprocessRMW: 1. I xfailed a test because we're now producing worse code in a case that has nothing to do with the change: it turns out that our use of MorphNodeTo will leave dead nodes in the graph which (depending on how the graph is walked) end up causing bogus uses of chains and blocking matches. This is really bad for other reasons, so I'll fix this in a follow-up patch. 2. CheckFoldableChainNode needs to be improved to handle the TF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97539 91177308-0d34-0410-b5e6-96231b3b80d8
* resolve some fixmesChris Lattner2010-03-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97515 91177308-0d34-0410-b5e6-96231b3b80d8
* resolve a fixme and simplify code by moving insertion of theChris Lattner2010-03-01
| | | | | | | | | EmitMergeInputChainsMatcher node up into EmitResultCode. This doesn't have much of an effect on the generated code, the X86 table is exactly the same size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97514 91177308-0d34-0410-b5e6-96231b3b80d8
* resolve a fixme by having the .td file parser reject thigns likeChris Lattner2010-03-01
| | | | | | | | | (set GPR, somecomplexpattern) if somecomplexpattern doesn't declare what it can match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97513 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit type checks late instead of early, this encouragesChris Lattner2010-03-01
| | | | | | | | structural matching code to be factored and shared this shrinks the X86 isel table from 86537 to 83890 bytes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97442 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit a redundant check for immediates at root context, e.g. (imm 0).Chris Lattner2010-03-01
| | | | | | | | | This allows formation of OpcodeSwitch for top level patterns, in particular on X86. This saves about 1K of data space in the x86 table and makes the dispatch much more efficient. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97440 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate the CheckMultiOpcodeMatcher code and have each Chris Lattner2010-03-01
| | | | | | | | | | ComplexPattern at the root be generated multiple times, once for each opcode they are part of. This encourages factoring because the opcode checks get treated just like everything else in the matcher. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97439 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance RecordNode and RecordChild comments to indicate whatChris Lattner2010-03-01
| | | | | | | slot they're recording into, no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97433 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit redundant opcode checks for andimm and orimm tests at rootChris Lattner2010-03-01
| | | | | | | | | | | | so that we get grouping at the top level. Add an optimization to reorder type check & record nodes after opcode checks. We prefer to expose tree shape matching which improves grouping and will enhance the next optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97432 91177308-0d34-0410-b5e6-96231b3b80d8
* inline the node transforms and node predicates into the generatedChris Lattner2010-03-01
| | | | | | | | | dispatcher method. This eliminates the dependence of the new isel's generated code on the old isel's predicates, however some random hand written isel code still uses them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97431 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance the EmitNode/MorphNodeTo operands to take a bit thatChris Lattner2010-02-28
| | | | | | | | | specifies whether there is an output flag or not. Use this instead of redundantly encoding the chain/flag results in the output vtlist. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97419 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance the new isel to use SelectNodeTo for most patterns,Chris Lattner2010-02-28
| | | | | | | | | | even some the old isel didn't. There are several parts of this that make me feel dirty, but it's no worse than the old isel. I'll clean up the parts I can do without ripping out the old one next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97415 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance EmitNodeMatcher to keep track of the recorded slot numbersChris Lattner2010-02-28
| | | | | | | it will populate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97363 91177308-0d34-0410-b5e6-96231b3b80d8
* add infrastructure to support forming selectnodeto. Not used yetChris Lattner2010-02-28
| | | | | | | because I have to go on another detour first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97362 91177308-0d34-0410-b5e6-96231b3b80d8
* change CheckOpcodeMatcher to hold the SDNodeInfo instead ofChris Lattner2010-02-27
| | | | | | | the opcode name. This gives the optimizer more semantic info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97346 91177308-0d34-0410-b5e6-96231b3b80d8
* rename fooMatcherNode to fooMatcher.Chris Lattner2010-02-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97096 91177308-0d34-0410-b5e6-96231b3b80d8
* add a fixme for an experiment that defeated me for the time being.Chris Lattner2010-02-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97081 91177308-0d34-0410-b5e6-96231b3b80d8
* The new isel was not properly handling patterns that coveredChris Lattner2010-02-24
| | | | | | | | | | internal nodes with flag results. Record these with a new OPC_MarkFlagResults opcode and use this to update the interior nodes' flag results properly. This fixes CodeGen/X86/i256-add.ll with the new isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97021 91177308-0d34-0410-b5e6-96231b3b80d8
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