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* make printInstruction return void since its result is omitted. Make the Chris Lattner2009-08-081-1/+1
| | | | | | | error condition get trapped with an assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78449 91177308-0d34-0410-b5e6-96231b3b80d8
* don't check the result of printInstruction anymore.Chris Lattner2009-08-081-4/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78444 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some dead code.Daniel Dunbar2009-08-051-9/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78219 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code. MDNode and MDString are not Constant anymore.Devang Patel2009-08-051-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78207 91177308-0d34-0410-b5e6-96231b3b80d8
* Major calling convention code refactoring.Dan Gohman2009-08-053-277/+307
| | | | | | | | | | | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't flush the raw_ostream between each MachineFunction. These flushDan Gohman2009-08-051-2/+0
| | | | | | | | | | | | calls were originally put in place because errs() at one time was not unbuffered, and these print routines are commonly used with errs() for debugging. However, errs() is now properly unbuffered, so the flush calls are no longer needed. This significantly reduces the number of write(2) calls for regular asm printing when there are many small functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78137 91177308-0d34-0410-b5e6-96231b3b80d8
* make MergeableCString be a SectionKind "abstract class", andChris Lattner2009-08-041-0/+1
| | | | | | | | | add new concrete versions for 1/2/4-byte mergable strings. These are not actually created yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78055 91177308-0d34-0410-b5e6-96231b3b80d8
* switch ppc to using SwitchToSection instead of textual section stuff.Chris Lattner2009-08-031-14/+43
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78013 91177308-0d34-0410-b5e6-96231b3b80d8
* Move most targets TargetMachine constructor to only taking a target triple.Daniel Dunbar2009-08-022-11/+12
| | | | | | | - The C, C++, MSIL, and Mips backends still need the module. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77927 91177308-0d34-0410-b5e6-96231b3b80d8
* Normalize Subtarget constructors to take a target triple string instead ofDaniel Dunbar2009-08-024-16/+12
| | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77918 91177308-0d34-0410-b5e6-96231b3b80d8
* move dwarf debug info section selection stuff from TAI toChris Lattner2009-08-021-11/+0
| | | | | | | TLOF, unifying all the dwarf targets at the same time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77889 91177308-0d34-0410-b5e6-96231b3b80d8
* convert EHFrameSection to be managed by TLOF instead of TAI.Chris Lattner2009-08-021-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77888 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the getInlineAsmLength virtual method from TAI to TII, whereChris Lattner2009-08-021-1/+1
| | | | | | | | | | | the only real caller (GetFunctionSizeInBytes) uses it. The custom ARM implementation of this is basically reimplementing an assembler poorly for negligible gain. It should be removed IMNSHO, but I'll leave that to ARMish folks to decide. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77877 91177308-0d34-0410-b5e6-96231b3b80d8
* remove the dead ELFTargetAsmInfo.h/cpp file. TargetAsmInfoChris Lattner2009-08-021-1/+0
| | | | | | | | defaults to being ELF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77866 91177308-0d34-0410-b5e6-96231b3b80d8
* remove TargetAsmInfo::TM, which is now dead. The basic TAI class now Chris Lattner2009-08-022-4/+3
| | | | | | | no longer depends on TM! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77863 91177308-0d34-0410-b5e6-96231b3b80d8
* remove the x86/ppc impls of getEHGlobalPrefix, which is already dead.Chris Lattner2009-08-022-8/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77861 91177308-0d34-0410-b5e6-96231b3b80d8
* move getDwarfExceptionSection from TAI to TLOF and rename it to Chris Lattner2009-08-021-2/+0
| | | | | | | | | | | | getLSDASection() to be more specific. This makes it pretty obvious that the ELF LSDA section is being specified wrong in PIC mode. We're probably getting a lot of startup-time relocations to a readonly page, which is expensive and bad. Someone who cares about ELF C++ should investigate this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77847 91177308-0d34-0410-b5e6-96231b3b80d8
* don't override the default of this, the only difference is \t instead of ' '.Chris Lattner2009-08-021-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77838 91177308-0d34-0410-b5e6-96231b3b80d8
* REmove dead fields of TAI.Chris Lattner2009-08-011-5/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77820 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typos in comments.Dan Gohman2009-08-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77806 91177308-0d34-0410-b5e6-96231b3b80d8
* remove the PPCLinuxTargetAsmInfo implementation of PreferredEHDataFormat,Chris Lattner2009-07-312-35/+0
| | | | | | | | | | | because it just calls the default impl. Remove the PPCDarwinTargetAsmInfo version of PreferredEHDataFormat because it just returns DW_EH_PE_absptr unless on 10.6. However, 10.6 doesn't support PPC, so the default impl is just fine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77724 91177308-0d34-0410-b5e6-96231b3b80d8
* switch off of 'Section' onto MCSection. We're not properly usingChris Lattner2009-07-311-7/+8
| | | | | | | | MCSection subclasses yet, but this is a step in the right direction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77708 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r77654 with a fix: MachineFunctionPass's getAnalysisUsageDan Gohman2009-07-311-11/+6
| | | | | | | | | shouldn't do AU.setPreservesCFG(), because even though CodeGen passes don't modify the LLVM IR CFG, they may modify the MachineFunction CFG, and passes like MachineLoop are registered with isCFGOnly set to true. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77691 91177308-0d34-0410-b5e6-96231b3b80d8
* refactor section construction in TLOF to be through an explicitChris Lattner2009-07-311-1/+1
| | | | | | | initialize method, which can be called when an MCContext is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77687 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r77654, it appears to be causing llvm-gcc bootstrap failures, and manyDaniel Dunbar2009-07-311-6/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | failures when building assorted projects with clang. --- Reverse-merging r77654 into '.': U include/llvm/CodeGen/Passes.h U include/llvm/CodeGen/MachineFunctionPass.h U include/llvm/CodeGen/MachineFunction.h U include/llvm/CodeGen/LazyLiveness.h U include/llvm/CodeGen/SelectionDAGISel.h D include/llvm/CodeGen/MachineFunctionAnalysis.h U include/llvm/Function.h U lib/Target/CellSPU/SPUISelDAGToDAG.cpp U lib/Target/PowerPC/PPCISelDAGToDAG.cpp U lib/CodeGen/LLVMTargetMachine.cpp U lib/CodeGen/MachineVerifier.cpp U lib/CodeGen/MachineFunction.cpp U lib/CodeGen/PrologEpilogInserter.cpp U lib/CodeGen/MachineLoopInfo.cpp U lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp D lib/CodeGen/MachineFunctionAnalysis.cpp D lib/CodeGen/MachineFunctionPass.cpp U lib/CodeGen/LiveVariables.cpp git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77661 91177308-0d34-0410-b5e6-96231b3b80d8
* Manage MachineFunctions with an analysis Pass instead of the AnnotableDan Gohman2009-07-311-11/+6
| | | | | | | | mechanism. To support this, make MachineFunctionPass a little more complete. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77654 91177308-0d34-0410-b5e6-96231b3b80d8
* Move types back to the 2.5 API.Owen Anderson2009-07-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77516 91177308-0d34-0410-b5e6-96231b3b80d8
* Give getPointerRegClass() a "kind" value so that targets can Chris Lattner2009-07-292-4/+4
| | | | | | | support multiple different pointer register classes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77501 91177308-0d34-0410-b5e6-96231b3b80d8
* pass the mangler down into the various SectionForGlobal methods.Chris Lattner2009-07-291-5/+6
| | | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77432 91177308-0d34-0410-b5e6-96231b3b80d8
* Change the "PreferredEHDataFormat" from "absptr" if we're on a Darwin system >Bill Wendling2009-07-291-5/+9
| | | | | | | Leopard. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77414 91177308-0d34-0410-b5e6-96231b3b80d8
* Output the correct format for Darwin.Bill Wendling2009-07-281-5/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77376 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename MDNode.h header. It defines MDnode and other metadata classes.Devang Patel2009-07-281-1/+1
| | | | | | | | New name is Metadata.h. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77370 91177308-0d34-0410-b5e6-96231b3b80d8
* the apple "ld_classic" linker doesn't support .literal16 in 32-bitChris Lattner2009-07-281-1/+1
| | | | | | | | mode, and "ld64" (the default linker) falls back to it in -static mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77334 91177308-0d34-0410-b5e6-96231b3b80d8
* Rip all of the global variable lowering logic out of TargetAsmInfo. SinceChris Lattner2009-07-283-11/+17
| | | | | | | | | | | | | | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77294 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate getNamed/getUnnamedSection, adding a new and unified ↵Chris Lattner2009-07-271-1/+1
| | | | | | | | | getOrCreateSection instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77186 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate SectionFlags, just embed a SectionKind into SectionChris Lattner2009-07-272-5/+3
| | | | | | | instead and drive things based off of that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77184 91177308-0d34-0410-b5e6-96231b3b80d8
* untangle a TargetAsmInfo hack where ELFTargetAsmInfo would create aChris Lattner2009-07-261-7/+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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77165 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate some uses of DOUT, cerr, and getNameStart().Daniel Dunbar2009-07-261-5/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77145 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor commonality in triple match routines into helper template for registeringDaniel Dunbar2009-07-261-27/+5
| | | | | | | classes, and migrate existing targets over. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77126 91177308-0d34-0410-b5e6-96231b3b80d8
* Kill Target specific ModuleMatchQuality stuff.Daniel Dunbar2009-07-261-38/+0
| | | | | | | - This was overkill and inconsistently implemented. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77114 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove Value::{isName, getNameRef}.Daniel Dunbar2009-07-251-2/+2
| | | | | | | Also, change MDString to use a StringRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77098 91177308-0d34-0410-b5e6-96231b3b80d8
* this is (unfortunately) several changes mixed together:Chris Lattner2009-07-251-1/+1
| | | | | | | | | | | | | | | | | 1. Spell SectionFlags::Writeable as "Writable". 2. Add predicates for deriving SectionFlags from SectionKinds. 3. Sink ELF-specific getSectionPrefixForUniqueGlobal impl into ELFTargetAsmInfo. 4. Fix SectionFlagsForGlobal to know that BSS/ThreadBSS has the BSS bit set (the real fix for PR4619). 5. Fix isSuitableForBSS to not put globals with explicit sections set in BSS (which was the reason #4 wasn't fixed earlier). 6. Remove my previous hack for PR4619. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77085 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify JIT target selection.Daniel Dunbar2009-07-251-20/+4
| | | | | | | | | | | - Instead of requiring targets to define a JIT quality match function, we just have them specify if they support a JIT. - Target selection for the JIT just gets the host triple and looks for the best target which matches the triple and has a JIT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77060 91177308-0d34-0410-b5e6-96231b3b80d8
* Add new helpers for registering targets.Daniel Dunbar2009-07-253-14/+7
| | | | | | | - Less boilerplate == good. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77052 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused member functions.Eli Friedman2009-07-242-82/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76960 91177308-0d34-0410-b5e6-96231b3b80d8
* use section flags more correctly.Chris Lattner2009-07-241-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76944 91177308-0d34-0410-b5e6-96231b3b80d8
* reduce api exposure: clients shouldn't call SectionKindForGlobal directly.Chris Lattner2009-07-241-4/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76941 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the IA-64 backend.Dan Gohman2009-07-241-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76920 91177308-0d34-0410-b5e6-96231b3b80d8
* Let each target determines whether a machine instruction is dead. If true, ↵Evan Cheng2009-07-221-0/+7
| | | | | | | | | that allows late codeine passes to delete it. This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76703 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of the Pass+Context magic.Owen Anderson2009-07-221-6/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8