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* Add register-reuse to frame-index register scavenging. When a target usesJim Grosbach2009-10-072-4/+8
| | | | | | | | | | | | | | | | | | | | a virtual register to eliminate a frame index, it can return that register and the constant stored there to PEI to track. When scavenging to allocate for those registers, PEI then tracks the last-used register and value, and if it is still available and matches the value for the next index, reuses the existing value rather and removes the re-materialization instructions. Fancier tracking and adjustment of scavenger allocations to keep more values live for longer is possible, but not yet implemented and would likely be better done via a different, less special-purpose, approach to the problem. eliminateFrameIndex() is modified so the target implementations can return the registers they wish to be tracked for reuse. ARM Thumb1 implements and utilizes the new mechanism. All other targets are simply modified to adjust for the changed eliminateFrameIndex() prototype. llvm-svn: 83467
* Instead of printing unnecessary basic block labels as labels inDan Gohman2009-10-061-1/+0
| | | | | | | | | | verbose-asm mode, print comments instead. This eliminates a non-comment difference between verbose-asm mode and non-verbose-asm mode. Also, factor out the relevant code out of all the targets and into target-independent code. llvm-svn: 83392
* Update processDebugLoc() so that it can be used to process debug info before ↵Devang Patel2009-10-061-2/+2
| | | | | | and after printing an instruction. llvm-svn: 83363
* Use MachineInstr as an processDebugLoc() argument.Devang Patel2009-09-301-1/+1
| | | | | | This will allow processDebugLoc() to handle scopes for DWARF debug info. llvm-svn: 83183
* Rename getTargetNode to getMachineNode, for consistency with theDan Gohman2009-09-251-4/+4
| | | | | | | | naming scheme used in SelectionDAG, where there are multiple kinds of "target" nodes, but "machine" nodes are nodes which represent a MachineInstr. llvm-svn: 82790
* Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic ↵Evan Cheng2009-09-191-2/+11
| | | | | | blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks. llvm-svn: 82311
* Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that ↵Evan Cheng2009-09-182-2/+4
| | | | | | | | sdisel will use to properly complete phi nodes. Not functionality change yet. llvm-svn: 82273
* add missing fileChris Lattner2009-09-151-0/+32
| | | | llvm-svn: 81881
* several major improvements to the sparc backend: support for weak linkageChris Lattner2009-09-158-48/+197
| | | | | | and PIC codegen. Patch by Venkatraman Govindaraju! llvm-svn: 81877
* Remove unused variables.Daniel Dunbar2009-09-131-1/+0
| | | | llvm-svn: 81718
* remove all but one reference to TargetRegisterDesc::AsmName.Chris Lattner2009-09-131-4/+1
| | | | llvm-svn: 81714
* the tblgen produced 'getRegisterName' method does not accessChris Lattner2009-09-131-1/+1
| | | | | | the object, make it static instead of const. llvm-svn: 81711
* make tblgen produce a function that returns the name for a physreg.Chris Lattner2009-09-131-0/+2
| | | | | | Nothing is using this info yet. llvm-svn: 81707
* replace printBasicBlockLabel with EmitBasicBlockStart,Chris Lattner2009-09-131-1/+1
| | | | | | | now that printBasicBlockLabel is only used for starting a MBB. This allows elimination of a bunch of arguments. llvm-svn: 81684
* convert some uses of printBasicBlockLabel to use GetMBBSymbolChris Lattner2009-09-131-2/+3
| | | | | | instead. llvm-svn: 81677
* remove DebugLoc from MCInst and eliminate "Comment printing" fromChris Lattner2009-09-091-0/+5
| | | | | | | | | | | | | the MCInst path of the asmprinter. Instead, pull comment printing out of the autogenerated asmprinter into each target that uses the autogenerated asmprinter. This causes code duplication into each target, but in a way that will be easier to clean up later when more asmprinter stuff is commonized into the base AsmPrinter class. This also fixes an xcore strangeness where it inserted two tabs before every instruction. llvm-svn: 81396
* hoist the call to processDebugLoc out of the generatedChris Lattner2009-09-091-0/+1
| | | | | | | | | | | | | asm printer into the "printInstruction" routine. This fixes a problem where the experimental asmprinter would drop debug labels in some cases, and fixes issues on ppc/xcore where pseudo instructions like "mr" didn't get debug locs properly. It is annoying that this moves the call from one place into each target, but a future set of more invasive refactorings will fix that problem. llvm-svn: 81377
* Add source debug information to the Sparc code generator.Richard Pennington2009-09-083-6/+11
| | | | llvm-svn: 81215
* Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson.Sandeep Patel2009-09-022-6/+6
| | | | llvm-svn: 80773
* Normalize makefile comments and sort cmake file lists.Benjamin Kramer2009-08-312-2/+2
| | | | llvm-svn: 80584
* Generate section for bss and enable weak symbolsVenkatraman Govindaraju2009-08-261-0/+6
| | | | llvm-svn: 80121
* test commitVenkatraman Govindaraju2009-08-261-1/+1
| | | | llvm-svn: 80070
* remove various std::ostream version of printing methods fromChris Lattner2009-08-231-2/+3
| | | | | | | | MachineInstr and MachineOperand. This required eliminating a bunch of stuff that was using DOUT, I hope that bill doesn't mind me stealing his fun. ;-) llvm-svn: 79813
* Forgot to update some CMakeLists.Benjamin Kramer2009-08-221-1/+1
| | | | llvm-svn: 79780
* rename TAI -> MAI, being careful not to make MAILJMP instructions :)Chris Lattner2009-08-221-5/+5
| | | | llvm-svn: 79777
* Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.Chris Lattner2009-08-224-14/+13
| | | | llvm-svn: 79763
* Record variable debug info at ISel time directly.Devang Patel2009-08-221-1/+0
| | | | llvm-svn: 79742
* eliminate AsmPrinter::SwitchToSection and just have clientsChris Lattner2009-08-191-5/+7
| | | | | | talk to the MCStreamer directly instead. llvm-svn: 79405
* Change TargetAsmInfo to be constructed via TargetRegistry from a Target+TripleChris Lattner2009-08-124-11/+6
| | | | | | | | pair instead of from a virtual method on TargetMachine. This cuts the final ties of TargetAsmInfo to TargetMachine, meaning that MC can now use TargetAsmInfo. llvm-svn: 78802
* Split EVT into MVT and EVT, the former representing _just_ a primitive type, ↵Owen Anderson2009-08-113-195/+195
| | | | | | | | while the latter is capable of representing either a primitive or an extended type. llvm-svn: 78713
* pass the TargetTriple down from each target ctor to theChris Lattner2009-08-111-1/+1
| | | | | | LLVMTargetMachine ctor. It is currently unused. llvm-svn: 78711
* Rename MVT to EVT, in preparation for splitting SimpleValueType out into its ↵Owen Anderson2009-08-104-202/+202
| | | | | | own struct type. llvm-svn: 78610
* eliminate TargetLoweringObjectFileSparc in favor of a TAI hook.Chris Lattner2009-08-082-27/+3
| | | | | | | | A TAI hook is appropriate in this case because this is just an asm syntax issue, not a semantic difference. TLOF should model the semantics of the section. llvm-svn: 78498
* make printInstruction return void since its result is omitted. Make the Chris Lattner2009-08-081-1/+1
| | | | | | error condition get trapped with an assert. llvm-svn: 78449
* Fix a bunch of namespace pollution.Dan Gohman2009-08-071-0/+3
| | | | llvm-svn: 78363
* Remove dead code. MDNode and MDString are not Constant anymore.Devang Patel2009-08-051-3/+0
| | | | llvm-svn: 78207
* Major calling convention code refactoring.Dan Gohman2009-08-053-83/+97
| | | | | | | | | | | | | | | | | | | Instead of awkwardly encoding calling-convention information with ISD::CALL, ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering provides three virtual functions for targets to override: LowerFormalArguments, LowerCall, and LowerRet, which replace the custom lowering done on the special nodes. They provide the same information, but in a more immediately usable format. This also reworks much of the target-independent tail call logic. The decision of whether or not to perform a tail call is now cleanly split between target-independent portions, and the target dependent portion in IsEligibleForTailCallOptimization. This also synchronizes all in-tree targets, to help enable future refactoring and feature work. llvm-svn: 78142
* Move most targets TargetMachine constructor to only taking a target triple.Daniel Dunbar2009-08-022-6/+4
| | | | | | - The C, C++, MSIL, and Mips backends still need the module. llvm-svn: 77927
* Normalize Subtarget constructors to take a target triple string instead ofDaniel Dunbar2009-08-023-5/+4
| | | | | | | | | | Module*. Also, dropped uses of TargetMachine where unnecessary. The only target which still takes a TargetMachine& is Mips, I would appreciate it if someone would normalize this to match other targets. llvm-svn: 77918
* eliminate TargetMAchine argument to sparc TAIChris Lattner2009-08-023-7/+4
| | | | llvm-svn: 77864
* remove TargetAsmInfo::TM, which is now dead. The basic TAI class now Chris Lattner2009-08-022-4/+3
| | | | | | no longer depends on TM! llvm-svn: 77863
* REmove dead fields of TAI.Chris Lattner2009-08-011-2/+0
| | | | llvm-svn: 77820
* Normalize target registration code.Daniel Dunbar2009-07-311-1/+1
| | | | llvm-svn: 77692
* pass the mangler down into the various SectionForGlobal methods.Chris Lattner2009-07-291-2/+2
| | | | | | No functionality change. llvm-svn: 77432
* Rename MDNode.h header. It defines MDnode and other metadata classes.Devang Patel2009-07-281-1/+1
| | | | | | New name is Metadata.h. llvm-svn: 77370
* Rip all of the global variable lowering logic out of TargetAsmInfo. SinceChris Lattner2009-07-284-28/+27
| | | | | | | | | | | | | | | | | | | | it is highly specific to the object file that will be generated in the end, this introduces a new TargetLoweringObjectFile interface that is implemented for each of ELF/MachO/COFF/Alpha/PIC16 and XCore. Though still is still a brutal and ugly refactoring, this is a major step towards goodness. This patch also: 1. fixes a bunch of dangling pointer problems in the PIC16 backend. 2. disables the TargetLowering copy ctor which PIC16 was accidentally using. 3. gets us closer to xcore having its own crazy target section flags and pic16 not having to shadow sections with its own objects. 4. fixes wierdness where ELF targets would set CStringSection but not CStringSection_. Factor the code better. 5. fixes some bugs in string lowering on ELF targets. llvm-svn: 77294
* Eliminate getNamed/getUnnamedSection, adding a new and unified ↵Chris Lattner2009-07-271-1/+1
| | | | | | | | getOrCreateSection instead. llvm-svn: 77186
* Eliminate SectionFlags, just embed a SectionKind into SectionChris Lattner2009-07-272-11/+10
| | | | | | instead and drive things based off of that. llvm-svn: 77184
* untangle a TargetAsmInfo hack where ELFTargetAsmInfo would create aChris Lattner2009-07-262-6/+4
| | | | | | | | | 'unnamed' bss section, but some impls would want a named one. Since they don't have consistent behavior, just make each target do their own thing, instead of doing something "sortof common" then having targets change immutable objects later. llvm-svn: 77165
* remove a densemap from TargetAsmInfo that was uniquing the targetflags strings,Chris Lattner2009-07-262-15/+20
| | | | | | just use a smallstring instead. llvm-svn: 77144
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