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* Move actual section printing stuff to AsmPrinter from TAI reducing heap traffic.Anton Korobeynikov2008-09-241-3/+2
| | | | llvm-svn: 56573
* Drop obsolete hook and change all usage to new interfaceAnton Korobeynikov2008-09-241-1/+1
| | | | llvm-svn: 56572
* Fix these enums' starting values to reflect the way thatDan Gohman2008-09-231-1/+1
| | | | | | instruction opcodes are now numbered. No functionality change. llvm-svn: 56497
* Make log, log2, log10, exp, exp2 use Expand byDale Johannesen2008-09-221-11/+0
| | | | | | default. llvm-svn: 56471
* Reverting r56249. On further investigation, this functionality isn't needed.Bill Wendling2008-09-161-8/+9
| | | | | | Apologies for the thrashing. llvm-svn: 56251
* - Change "ExternalSymbolSDNode" to "SymbolSDNode".Bill Wendling2008-09-161-9/+8
| | | | | | | | | | - Add linkage to SymbolSDNode (default to external). - Change ISD::ExternalSymbol to ISD::Symbol. - Change ISD::TargetExternalSymbol to ISD::TargetSymbol These changes pave the way to allowing SymbolSDNodes with non-external linkage. llvm-svn: 56249
* Rename ConstantSDNode::getValue to getZExtValue, for consistencyDan Gohman2008-09-123-36/+43
| | | | | | | with ConstantInt. This led to fixing a bug in TargetLowering.cpp using getValue instead of getAPIntValue. llvm-svn: 56159
* Tidy up several unbeseeming casts from pointer to intptr_t.Dan Gohman2008-09-043-4/+4
| | | | llvm-svn: 55779
* Add intrinsics for log, log2, log10, exp, exp2.Dale Johannesen2008-09-041-0/+11
| | | | | | No functional change (and no FE change to generate them). llvm-svn: 55753
* Change getBinaryCodeForInstr prototype. First operand MachineInstr& should ↵Evan Cheng2008-09-021-6/+8
| | | | | | be const. Make corresponding changes. llvm-svn: 55623
* erect abstraction boundaries for accessing SDValue members, rename Val -> ↵Gabor Greif2008-08-282-15/+15
| | | | | | Node to reflect semantics llvm-svn: 55504
* Make TargetInstrInfo::copyRegToReg return a bool indicating whether the copy ↵Owen Anderson2008-08-262-6/+8
| | | | | | | | | requested was inserted or not. This allows bitcast in fast isel to properly handle the case where an appropriate reg-to-reg copy is not available. llvm-svn: 55375
* Move the point at which FastISel taps into the SelectionDAGISelDan Gohman2008-08-231-5/+4
| | | | | | | | | | | | | | | | | | process up to a higher level. This allows FastISel to leverage more of SelectionDAGISel's infastructure, such as updating Machine PHI nodes. Also, implement transitioning from SDISel back to FastISel in the middle of a block, so it's now possible to go back and forth. This allows FastISel to hand individual CallInsts and other complicated things off to SDISel to handle, while handling the rest of the block itself. To help support this, reorganize the SelectionDAG class so that it is allocated once and reused throughout a function, instead of being completely reallocated for each block. llvm-svn: 55219
* Simplify SelectRoot's interface, and factor out some common codeDan Gohman2008-08-211-1/+1
| | | | | | from all targets. llvm-svn: 55124
* Use raw_ostream throughout the AsmPrinter.Owen Anderson2008-08-214-6/+9
| | | | llvm-svn: 55092
* Tablegen generated code already tests the opcode value, so it's notDan Gohman2008-08-201-5/+3
| | | | | | necessary to use dyn_cast in these predicates. llvm-svn: 55055
* Convert uses of std::vector in TargetInstrInfo to SmallVector. This change ↵Owen Anderson2008-08-142-8/+9
| | | | | | had to be propoagated down into all the targets and up into all clients of this API. llvm-svn: 54802
* Handle visibility printing with all generality. Remove bunch of duplicate code.Anton Korobeynikov2008-08-081-2/+3
| | | | llvm-svn: 54540
* Switch Alpha to new section handling stuffAnton Korobeynikov2008-08-071-63/+60
| | | | llvm-svn: 54457
* Trim #includes.Dan Gohman2008-08-051-3/+0
| | | | llvm-svn: 54350
* Rename SDOperand to SDValue.Dan Gohman2008-07-274-121/+121
| | | | llvm-svn: 54128
* Add a new function, ReplaceAllUsesOfValuesWith, which handles bulkDan Gohman2008-07-171-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | replacement of multiple values. This is slightly more efficient than doing multiple ReplaceAllUsesOfValueWith calls, and theoretically could be optimized even further. However, an important property of this new function is that it handles the case where the source value set and destination value set overlap. This makes it feasible for isel to use SelectNodeTo in many very common cases, which is advantageous because SelectNodeTo avoids a temporary node and it doesn't require CSEMap updates for users of values that don't change position. Revamp MorphNodeTo, which is what does all the work of SelectNodeTo, to handle operand lists more efficiently, and to correctly handle a number of corner cases to which its new wider use exposes it. This commit also includes a change to the encoding of post-isel opcodes in SDNodes; now instead of being sandwiched between the target-independent pre-isel opcodes and the target-dependent pre-isel opcodes, post-isel opcodes are now represented as negative values. This makes it possible to test if an opcode is pre-isel or post-isel without having to know the size of the current target's post-isel instruction set. These changes speed up llc overall by 3% and reduce memory usage by 10% on the InstructionCombining.cpp testcase with -fast and -regalloc=local. llvm-svn: 53728
* Pool-allocation for MachineInstrs, MachineBasicBlocks, andDan Gohman2008-07-073-15/+15
| | | | | | | | | | | MachineMemOperands. The pools are owned by MachineFunctions. This drastically reduces the number of calls to malloc/free made during the "Emit" phase of scheduling, as well as later phases in CodeGen. Combined with other changes, this speeds up the "instruction selection" phase of CodeGen by 10% in some cases. llvm-svn: 53212
* Rather than having a different custom legalizationDuncan Sands2008-07-042-35/+48
| | | | | | | | | | | | hook for each way in which a result type can be legalized (promotion, expansion, softening etc), just use one: ReplaceNodeResults, which returns a node with exactly the same result types as the node passed to it, but presumably with a bunch of custom code behind the scenes. No change if the new LegalizeTypes infrastructure is not turned on. llvm-svn: 53137
* - Remove calls to copyKillDeadInfo which is an N^2 function. Instead, ↵Evan Cheng2008-07-031-5/+7
| | | | | | | | propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc. - Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list. llvm-svn: 53097
* Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminatingDan Gohman2008-07-011-1/+2
| | | | | | | | | | | | | | | | the need for a flavor operand, and add a new SDNode subclass, LabelSDNode, for use with them to eliminate the need for a label id operand. Change instruction selection to let these label nodes through unmodified instead of creating copies of them. Teach the MachineInstr emitter how to emit a MachineInstr directly from an ISD label node. This avoids the need for allocating SDNodes for the label id and flavor value, as well as SDNodes for each of the post-isel label, label id, and label flavor. llvm-svn: 52943
* Rename ISD::LOCATION to ISD::DBG_STOPPOINT to better reflect itsDan Gohman2008-06-301-1/+1
| | | | | | | | | | | | | | | | | purpose, and give it a custom SDNode subclass so that it doesn't need to have line number, column number, filename string, and directory string, all existing as individual SDNodes to be the operands. This was the only user of ISD::STRING, StringSDNode, etc., so remove those and some associated code. This makes stop-points considerably easier to read in -view-legalize-dags output, and reduces overhead (creating new nodes and copying std::strings into them) on code containing debugging information. llvm-svn: 52924
* Split scheduling from instruction selection.Evan Cheng2008-06-301-7/+4
| | | | llvm-svn: 52923
* Revert the SelectionDAG optimization that makesDuncan Sands2008-06-301-3/+2
| | | | | | | | | | | | | | | | | | it impossible to create a MERGE_VALUES node with only one result: sometimes it is useful to be able to create a node with only one result out of one of the results of a node with more than one result, for example because the new node will eventually be used to replace a one-result node using ReplaceAllUsesWith, cf X86TargetLowering::ExpandFP_TO_SINT. On the other hand, most users of MERGE_VALUES don't need this and for them the optimization was valuable. So add a new utility method getMergeValues for creating MERGE_VALUES nodes which by default performs the optimization. Change almost everywhere to use getMergeValues (and tidy some stuff up at the same time). llvm-svn: 52893
* SimpleInstructionSelector is here no more.Dan Gohman2008-06-251-1/+0
| | | | llvm-svn: 52725
* Added MemOperands to Atomic operations since Atomics touches memory.Mon P Wang2008-06-251-4/+4
| | | | | | | | Added abstract class MemSDNode for any Node that have an associated MemOperand Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and atomic.lss => atomic.load.sub llvm-svn: 52706
* Use MachineBasicBlock::transferSuccessors.Dan Gohman2008-06-211-5/+1
| | | | llvm-svn: 52594
* Remove comparison methods for MVT. The main causeDuncan Sands2008-06-081-1/+1
| | | | | | | | | | | of apint codegen failure is the DAG combiner doing the wrong thing because it was comparing MVT's using < rather than comparing the number of bits. Removing the < method makes this mistake impossible to commit. Instead, add helper methods for comparing bits and use them. llvm-svn: 52098
* Wrap MVT::ValueType in a struct to get type safetyDuncan Sands2008-06-063-32/+30
| | | | | | | | | | | | | | | | and better control the abstraction. Rename the type to MVT. To update out-of-tree patches, the main thing to do is to rename MVT::ValueType to MVT, and rewrite expressions like MVT::getSizeInBits(VT) in the form VT.getSizeInBits(). Use VT.getSimpleVT() to extract a MVT::SimpleValueType for use in switch statements (you will get an assert failure if VT is an extended value type - these shouldn't exist after type legalization). This results in a small speedup of codegen and no new testsuite failures (x86-64 linux). llvm-svn: 52044
* Add CommonLinkage; currently tentative definitionsDale Johannesen2008-05-141-0/+1
| | | | | | | | | | are represented as "weak", but there are subtle differences in some cases on Darwin, so we need both. The intent is that "common" will behave identically to "weak" unless somebody changes their target to do something else. No functional change as yet. llvm-svn: 51118
* Change target-specific classes to use more precise static types.Dan Gohman2008-05-144-9/+9
| | | | | | | This eliminates the need for several awkward casts, including the last dynamic_cast under lib/Target. llvm-svn: 51091
* Clean up the use of static and anonymous namespaces. This turned upDan Gohman2008-05-131-4/+2
| | | | | | | several things that were neither in an anonymous namespace nor static but not intended to be global. llvm-svn: 51017
* Correlate stubs with functions in JIT: when emitting a stub, the JIT tells ↵Nicolas Geoffray2008-04-162-4/+7
| | | | | | | | the memory manager which function the stub will resolve. llvm-svn: 49814
* Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not LegalDan Gohman2008-04-121-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | on any current target and aren't optimized in DAGCombiner. Instead of using intermediate nodes, expand the operations, choosing between simple loads/stores, target-specific code, and library calls, immediately. Previously, the code to emit optimized code for these operations was only used at initial SelectionDAG construction time; now it is used at all times. This fixes some cases where rep;movs was being used for small copies where simple loads/stores would be better. This also cleans up code that checks for alignments less than 4; let the targets make that decision instead of doing it in target-independent code. This allows x86 to use rep;movs in low-alignment cases. Also, this fixes a bug that resulted in the use of rep;stos for memsets of 0 with non-constant memory size when the alignment was at least 4. It's better to use the library in this case, which can be significantly faster when the size is large. This also preserves more SourceValue information when memory intrinsics are lowered into simple loads/stores. llvm-svn: 49572
* Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo.Evan Cheng2008-03-312-12/+0
| | | | llvm-svn: 48995
* Fix "Control reaches the end of non-void function" warnings, Chris Lattner2008-03-301-0/+1
| | | | | | patch by David Chisnall. llvm-svn: 48963
* Add explicit keywords.Dan Gohman2008-03-251-1/+1
| | | | llvm-svn: 48801
* Unbreak JIT. Ignore TargetInstrInfo::IMPLICIT_DEF.Evan Cheng2008-03-171-0/+1
| | | | llvm-svn: 48447
* Replace all target specific implicit def instructions with a target ↵Evan Cheng2008-03-153-15/+0
| | | | | | independent one: TargetInstrInfo::IMPLICIT_DEF. llvm-svn: 48380
* Use PassManagerBase instead of FunctionPassManager for functionsDan Gohman2008-03-112-10/+10
| | | | | | | | that merely add passes. This allows them to be used with either FunctionPassManager or PassManager, or even with a custom new kind of pass manager. llvm-svn: 48256
* Default ISD::PREFETCH to expand.Evan Cheng2008-03-101-1/+0
| | | | llvm-svn: 48169
* Give TargetLowering::getSetCCResultType() a parameter so that ISD::SETCC'sScott Michel2008-03-102-1/+8
| | | | | | | | return ValueType can depend its operands' ValueType. This is a cosmetic change, no functionality impacted. llvm-svn: 48145
* Implement x86 support for @llvm.prefetch. It corresponds to prefetcht{0|1|2} ↵Evan Cheng2008-03-081-0/+1
| | | | | | and prefetchnta instructions. llvm-svn: 48042
* Add a quick and dirty "loop aligner pass". x86 uses it to align its loops to ↵Evan Cheng2008-02-281-1/+1
| | | | | | 16-byte boundaries. llvm-svn: 47703
* Final de-tabification.Bill Wendling2008-02-271-18/+18
| | | | llvm-svn: 47663
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