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* TopLevelMap[] reference is a pointer.Evan Cheng2010-03-031-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97661 91177308-0d34-0410-b5e6-96231b3b80d8
* speed up scope node processing: if the first element of a scopeChris Lattner2010-03-031-4/+7
| | | | | | | | | | | | | | entry we're about to process is obviously going to fail, don't bother pushing a scope only to have it immediately be popped. This avoids a lot of scope stack traffic in common cases. Unfortunately, this requires duplicating some of the predicate dispatch. To avoid duplicating the actual logic I pulled each predicate out to its own static function which gets used in both places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97651 91177308-0d34-0410-b5e6-96231b3b80d8
* introduce a new SwitchTypeMatcher node (which is analogous toChris Lattner2010-03-031-0/+1
| | | | | | | | | SwitchOpcodeMatcher) and have DAGISelMatcherOpt form it. This speeds up selection, particularly for X86 which has lots of variants of instructions with only type differences. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97645 91177308-0d34-0410-b5e6-96231b3b80d8
* - Change MachineInstr::isIdenticalTo to take a new option that determines ↵Evan Cheng2010-03-032-25/+20
| | | | | | | | | whether it should skip checking defs or at least virtual register defs. This subsumes part of the TargetInstrInfo::isIdentical functionality. - Eliminate TargetInstrInfo::isIdentical and replace it with produceSameValue. In the default case, produceSameValue just checks whether two machine instructions are identical (except for virtual register defs). But targets may override it to check for unusual cases (e.g. ARM pic loads from constant pools). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97628 91177308-0d34-0410-b5e6-96231b3b80d8
* Ordering forward declarations.Evan Cheng2010-03-031-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97626 91177308-0d34-0410-b5e6-96231b3b80d8
* Add Module functions in place of module providers.Erick Tryzelaar2010-03-023-6/+42
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97608 91177308-0d34-0410-b5e6-96231b3b80d8
* remove 300 lines of code that is now dead in the MSP430 backendChris Lattner2010-03-021-2/+2
| | | | | | | | now that isel handles chains more aggressively. This also allows us to make isLegalToFold non-virtual. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97597 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some issues in WalkChainUsers dealing with Chris Lattner2010-03-021-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CopyToReg/CopyFromReg/INLINEASM. These are annoying because they have the same opcode before an after isel. Fix this by setting their NodeID to -1 to indicate that they are selected, just like what automatically happens when selecting things that end up being machine nodes. With that done, give IsLegalToFold a new flag that causes it to ignore chains. This lets the HandleMergeInputChains routine be the one place that validates chains after a match is successful, enabling the new hotness in chain processing. This smarter chain processing eliminates the need for "PreprocessRMW" in the X86 and MSP430 backends and enables MSP to start matching it's multiple mem operand instructions more aggressively. I currently #if out the dead code in the X86 backend and MSP backend, I'll remove it for real in a follow-on patch. The testcase changes are: test/CodeGen/X86/sse3.ll: we generate better code test/CodeGen/X86/store_op_load_fold2.ll: PreprocessRMW was miscompiling this before, we now generate correct code Convert it to filecheck while I'm at it. test/CodeGen/MSP430/Inst16mm.ll: Add a testcase for mem/mem folding to make anton happy. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97596 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow specialization of ScopedHashTable of non-default DenseMapInfo.Evan Cheng2010-03-021-28/+33
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97594 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename LLVMUseIteratorRef to LLVMUseRef since we don't refer to iterators in ↵Erick Tryzelaar2010-03-021-10/+7
| | | | | | llvm-c. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97585 91177308-0d34-0410-b5e6-96231b3b80d8
* Swap parameters of isSafeToMove and isSafeToReMat for consistency.Evan Cheng2010-03-021-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97578 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the xfail I added a couple of patches back. The issueChris Lattner2010-03-021-0/+6
| | | | | | | | | | was that we weren't properly handling the case when interior nodes of a matched pattern become dead after updating chain and flag uses. Now we handle this explicitly in UpdateChainsAndFlags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97561 91177308-0d34-0410-b5e6-96231b3b80d8
* factor node morphing out to its own helper method.Chris Lattner2010-03-021-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97558 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate CodeGen/DAGISelHeader.h, it is empty now.Chris Lattner2010-03-021-26/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97556 91177308-0d34-0410-b5e6-96231b3b80d8
* Sink InstructionSelect() out of each target into SDISel, and rename itChris Lattner2010-03-022-96/+13
| | | | | | | | | | | | | | DoInstructionSelection. Inline "SelectRoot" into it from DAGISelHeader. Sink some other stuff out of DAGISelHeader into SDISel. Eliminate the various 'Indent' stuff from various targets, which dates to when isel was recursive. 17 files changed, 114 insertions(+), 430 deletions(-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97555 91177308-0d34-0410-b5e6-96231b3b80d8
* move some code out of DAGISelHeader up to SelectionDAGISel.h where itChris Lattner2010-03-021-0/+49
| | | | | | | is shared by all targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97553 91177308-0d34-0410-b5e6-96231b3b80d8
* Add skeleton of a machine level cse pass.Evan Cheng2010-03-021-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97543 91177308-0d34-0410-b5e6-96231b3b80d8
* Add count() and lookup() to ScopedHashTable. It might be useful to get ↵Evan Cheng2010-03-021-0/+8
| | | | | | information out of the hash table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97542 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite chain handling validation and input TokenFactor handlingChris Lattner2010-03-021-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Remove dead parameter passing.Bill Wendling2010-03-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97536 91177308-0d34-0410-b5e6-96231b3b80d8
* remove some functions that were only used by theChris Lattner2010-03-011-23/+1
| | | | | | | old isel generated code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97522 91177308-0d34-0410-b5e6-96231b3b80d8
* remove all but one version of SelectionDAG::MorphNodeToChris Lattner2010-03-011-20/+1
| | | | | | | (the most general) the others are dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97511 91177308-0d34-0410-b5e6-96231b3b80d8
* Use methods to determine if a LiveInterval is spillable.Jakob Stoklund Olesen2010-03-012-3/+12
| | | | | | Don't accidentally produce unspillable intervals for deeply nested loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97496 91177308-0d34-0410-b5e6-96231b3b80d8
* remove anders-aa from mainline, it isn't maintained and isChris Lattner2010-03-012-8/+0
| | | | | | | tantalyzing enough that people keep trying to use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97483 91177308-0d34-0410-b5e6-96231b3b80d8
* Accelerate isel dispatch for tables that start with a top-level Chris Lattner2010-03-011-0/+4
| | | | | | | | OPC_SwitchOpcode to use a table lookup instead of having to go through the interpreter for this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97469 91177308-0d34-0410-b5e6-96231b3b80d8
* Spelling fixes.Dan Gohman2010-03-012-8/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97453 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace cleanups.Dan Gohman2010-03-011-24/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97452 91177308-0d34-0410-b5e6-96231b3b80d8
* Use Doxygen comment syntax.Dan Gohman2010-03-011-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97451 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate the CheckMultiOpcodeMatcher code and have each Chris Lattner2010-03-011-1/+0
| | | | | | | | | | 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
* add a new OPC_SwitchOpcode which is semantically equivalentChris Lattner2010-03-011-0/+1
| | | | | | | | | | | | | | to a scope where every child starts with a CheckOpcode, but executes more efficiently. Enhance DAGISelMatcherOpt to form it. This also fixes a bug in CheckOpcode: apparently the SDNodeInfo objects are not pointer comparable, we have to compare the enum name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97438 91177308-0d34-0410-b5e6-96231b3b80d8
* hoist the new isel interpreter out of DAGISelHeader.hChris Lattner2010-02-282-823/+12
| | | | | | | | | (which gets #included into the middle of each target's DAGISel class) into a .cpp file where it is only compiled once. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97425 91177308-0d34-0410-b5e6-96231b3b80d8
* change a few opcodes to use VBRs instead of embeddingChris Lattner2010-02-282-83/+30
| | | | | | | immediate sizes into the opcode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97423 91177308-0d34-0410-b5e6-96231b3b80d8
* move all the opcodes out of DAGISelHeader.h (which getsChris Lattner2010-02-282-55/+58
| | | | | | | | #included into the middle of each isel class) into a real header. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97421 91177308-0d34-0410-b5e6-96231b3b80d8
* resolve a fixme by using hte new flag.Chris Lattner2010-02-281-9/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97420 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance the EmitNode/MorphNodeTo operands to take a bit thatChris Lattner2010-02-281-14/+19
| | | | | | | | | 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 handle the 'node already exists'Chris Lattner2010-02-281-15/+29
| | | | | | | case of MorphNodeTo directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97417 91177308-0d34-0410-b5e6-96231b3b80d8
* use MorphNodeTo instead of SelectNodeTo. SelectNodeToChris Lattner2010-02-281-13/+16
| | | | | | | is just a silly wrapper around MorphNodeTo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97416 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance the new isel to use SelectNodeTo for most patterns,Chris Lattner2010-02-281-47/+118
| | | | | | | | | | 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
* Add an override to StringRef::getAsInteger which parses into an APInt.John McCall2010-02-282-0/+39
| | | | | | | | | | | | It gets its own implementation totally divorced from the (presumably performance-sensitive) routines which parse into a uint64_t. Add APInt::operator|=(uint64_t), which is situationally much better than using a full APInt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97381 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for global variables in an address space for llvm-c and ocaml.Erick Tryzelaar2010-02-281-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97377 91177308-0d34-0410-b5e6-96231b3b80d8
* Add indirect br support to llvm-c and ocaml.Erick Tryzelaar2010-02-281-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97376 91177308-0d34-0410-b5e6-96231b3b80d8
* Add metadata functions to llvm-c and ocaml.Erick Tryzelaar2010-02-281-1/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97375 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the new builder arthmetic instructions to llvm-c and ocaml.Erick Tryzelaar2010-02-281-0/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97372 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the new union arthmetic instructions to llvm-c and ocaml.Erick Tryzelaar2010-02-281-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97371 91177308-0d34-0410-b5e6-96231b3b80d8
* Add generic binary op and cast builder functions.Erick Tryzelaar2010-02-281-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97370 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r97245 which seems to be causing performance problems.Bob Wilson2010-02-282-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97366 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach APFloat how to create both QNaNs and SNaNs and with arbitrary-widthJohn McCall2010-02-282-3/+32
| | | | | | | | | | payloads. APFloat's internal folding routines always make QNaNs now, instead of sometimes making QNaNs and sometimes SNaNs depending on the type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97364 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a flag to addPassesToEmit* to disable the Verifier pass runDan Gohman2010-02-281-6/+12
| | | | | | | after LSR, so that clients can opt in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97357 91177308-0d34-0410-b5e6-96231b3b80d8
* The mayHaveSideEffects flag is no longer used.Dan Gohman2010-02-271-7/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97348 91177308-0d34-0410-b5e6-96231b3b80d8
* Further constify MDNode* references.Dale Johannesen2010-02-262-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97252 91177308-0d34-0410-b5e6-96231b3b80d8
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