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path: root/llvm/lib/Target/DarwinTargetAsmInfo.cpp
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* move dwarf debug info section selection stuff from TAI toChris Lattner2009-08-021-12/+0
| | | | | | TLOF, unifying all the dwarf targets at the same time. llvm-svn: 77889
* I need Triple information, 10.6 shouldn't set this, it bloats Chris Lattner2009-08-021-1/+2
| | | | | | object files. llvm-svn: 77887
* remove TargetAsmInfo::TM, which is now dead. The basic TAI class now Chris Lattner2009-08-021-13/+1
| | | | | | no longer depends on TM! llvm-svn: 77863
* convert ctors/dtors section to be in TLOF instead ofChris Lattner2009-08-021-9/+0
| | | | | | TAI. llvm-svn: 77842
* Remove "JumpTableDataSection" from TAI, instead, have AsmPrinterChris Lattner2009-08-011-2/+0
| | | | | | | | | | | | compute it based on what it knows. As part of this, rename getSectionForMergeableConstant to getSectionForConstant because it works for non-mergable constants also. The only functionality change from this is that Xcore will start dropping its jump tables into readonly section instead of data section in -static mode. This should be fine as the linker resolves the relocations. If this is a problem, let me know and we'll come up with another solution. llvm-svn: 77833
* REmove dead fields of TAI.Chris Lattner2009-08-011-2/+0
| | | | llvm-svn: 77820
* move emitUsedDirectiveFor to TargetLoweringObjectFile and rename it toChris Lattner2009-07-311-20/+0
| | | | | | | indicate that it is a predicate, not an emitter. This eliminates TAI dependencies on Mangler and GlobalValue. llvm-svn: 77726
* Rip all of the global variable lowering logic out of TargetAsmInfo. SinceChris Lattner2009-07-281-102/+1
| | | | | | | | | | | | | | | | | | | | 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
* sink text/data section creation down into the target-specific places that Chris Lattner2009-07-271-1/+2
| | | | | | | should know about them. PECoff doesn't share these, and I want all sections to be created by object-file-specific code. llvm-svn: 77196
* 32-bit darwin targets support .literal16 too.Chris Lattner2009-07-271-6/+4
| | | | llvm-svn: 77191
* Eliminate getNamed/getUnnamedSection, adding a new and unified ↵Chris Lattner2009-07-271-17/+17
| | | | | | | | getOrCreateSection instead. llvm-svn: 77186
* Eliminate SectionFlags, just embed a SectionKind into SectionChris Lattner2009-07-271-9/+10
| | | | | | instead and drive things based off of that. llvm-svn: 77184
* simplify this code now that SectionKind knows if a global is weak or not.Chris Lattner2009-07-261-5/+2
| | | | llvm-svn: 77141
* rename Mergable -> Mergeable and Writable -> WriteableChris Lattner2009-07-261-10/+10
| | | | llvm-svn: 77138
* simplify getSectionForMergableConstant to take a SectionKind.Chris Lattner2009-07-261-13/+6
| | | | llvm-svn: 77134
* introduce specialized mergable const sectionkinds for elements of size 4/8/16 toChris Lattner2009-07-261-3/+7
| | | | | | simplify targets. llvm-svn: 77132
* Rearrange all the SectionKinds and structure them into a hierarchicalChris Lattner2009-07-261-9/+9
| | | | | | | | | | | | | group instead of a bunch of random unrelated ideas. Provide predicates to categorize a SectionKind into a group, and use them instead of getKind() throughout the code. This also renames a ton of SectionKinds to be more consistent and evocative, and adds a huge number of comments on the enums so that I will hopefully be able to remember how this stuff works long from now. llvm-svn: 77129
* finish simplifying DarwinTargetAsmInfo::SelectSectionForGlobalChris Lattner2009-07-261-23/+16
| | | | | | | for now. Make the section switching directives more consistent by not including \n and including \t for them all. llvm-svn: 77107
* simplify DarwinTargetAsmInfo::SelectSectionForGlobal a bitChris Lattner2009-07-261-16/+20
| | | | | | | | | | | and make it more aggressive, we now put: const int G2 __attribute__((weak)) = 42; into the text (readonly) segment like gcc, previously we put it into the data (readwrite) segment. llvm-svn: 77104
* make SectionKind be a first-class pod struct instead of justChris Lattner2009-07-251-2/+2
| | | | | | an enum. llvm-svn: 77096
* this is (unfortunately) several changes mixed together:Chris Lattner2009-07-251-1/+2
| | | | | | | | | | | | | | 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. llvm-svn: 77085
* make SectionKindForGlobal target independent, and therefore non-virtual.Chris Lattner2009-07-241-2/+7
| | | | | | | | It's classifications now include elf-specific discriminators. Targets that don't have these features (like darwin and pecoff) simply treat data.rel like data, etc. llvm-svn: 76993
* we already know the sectionkind when invoking SelectSectionForGlobal,Chris Lattner2009-07-241-2/+2
| | | | | | pass it in instead of recomputing it. llvm-svn: 76990
* hoist section name uniquing logic up to the top-level SectionForGlobalChris Lattner2009-07-241-5/+4
| | | | | | implementation, eliminating a dupe. llvm-svn: 76953
* Replace UniqueSectionForGlobal with getSectionPrefixForUniqueGlobal.Chris Lattner2009-07-241-6/+0
| | | | | | | | The later doesn't depend on any crazy LLVM IR stuff, and this pulls the concatenation of prefix with GV name (the root problem behind PR4584) out one level. llvm-svn: 76948
* inline the two MergeableConstSection implementations into theirChris Lattner2009-07-221-17/+13
| | | | | | only caller. llvm-svn: 76710
* remove the SelectSectionForMachineConst hook, replacing it withChris Lattner2009-07-221-20/+22
| | | | | | | | a new getSectionForMergableConstant hook. This removes one dependence of TAI on Type, and provides the hook with enough info to make the right decision based on whether the global has relocations etc. llvm-svn: 76705
* simplify based on the fact that darwin always uses L/l.Chris Lattner2009-07-211-8/+4
| | | | llvm-svn: 76662
* make some stuff private.Chris Lattner2009-07-211-10/+3
| | | | llvm-svn: 76661
* Rename LessPrivateGlobalPrefix -> LinkerPrivateGlobalPrefix to match theChris Lattner2009-07-211-4/+5
| | | | | | LLVM IR concept. llvm-svn: 76590
* Simplify the code in DarwinTargetAsmInfo::emitUsedDirectiveFor so that ↵Bill Wendling2009-07-201-16/+16
| | | | | | humans can understand it. llvm-svn: 76480
* Untangle a snarl that I discovered when updating the mangler,Chris Lattner2009-07-171-0/+5
| | | | | | | | | | | | | | starting in getCurrentFunctionEHName. Among other problems, we would try to privative a "foo.eh" label, but end up emitting the label as _Lfoo.eh instead of L_foo.eh on darwin. This is really bad, and the linker has always tolerated these labels existing. For now, just emit them as _foo.eh. This patch also fixes problems with ".eh" labels on unnamed functions and eliminates two strangely defined TargetAsmInfo hooks. llvm-svn: 76231
* Remove StringConstantPrefix now that the only userDuncan Sands2009-07-151-1/+0
| | | | | | (llvm-gcc) has gone. llvm-svn: 75781
* Reapply my previous asmprinter changes now with more testing and two Chris Lattner2009-07-141-3/+6
| | | | | | | | | | | | | | | | | | | | additional bug fixes: 1. The bug that everyone hit was a problem in the asmprinter where it would remove $stub but keep the L prefix on a name when emitting the indirect symbol. This is easy to fix by keeping the name of the stub and the name of the symbol in a StringMap instead of just keeping a StringSet and trying to reconstruct it late. 2. There was a problem printing the personality function. The current logic to print out the personality function from the DWARF information is a bit of a cesspool right now that duplicates a bunch of other logic in the asm printer. The short version of it is that it depends on emitting both the L and _ prefix for symbols (at least on darwin) and until I can untangle it, it is best to switch the mangler back to emitting both prefixes. llvm-svn: 75646
* llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.Torok Edwin2009-07-141-2/+2
| | | | | | | | | This adds location info for all llvm_unreachable calls (which is a macro now) in !NDEBUG builds. In NDEBUG builds location info and the message is off (it only prints "UREACHABLE executed"). llvm-svn: 75640
* Revert r7561{9,8,7,6}, which depend on r75610. Daniel Dunbar2009-07-141-6/+3
| | | | | | | | | | | | | | | | | | --- Reverse-merging r75619 into '.': U lib/Target/DarwinTargetAsmInfo.cpp U lib/CodeGen/AsmPrinter/AsmPrinter.cpp --- Reverse-merging r75618 into '.': U lib/CodeGen/ELFWriter.cpp U lib/CodeGen/MachOCodeEmitter.cpp U lib/CodeGen/MachOWriter.cpp --- Reverse-merging r75617 into '.': U lib/Target/CBackend/CBackend.cpp --- Reverse-merging r75616 into '.': U tools/bugpoint/Miscompilation.cpp U tools/lto/LTOCodeGenerator.cpp U tools/lto/LTOModule.cpp llvm-svn: 75638
* rename getValueName -> getMangledName. These two files have veryChris Lattner2009-07-141-3/+6
| | | | | | dubious looking things that I need to investigate in more detail. llvm-svn: 75619
* assert(0) -> LLVM_UNREACHABLE.Torok Edwin2009-07-111-2/+3
| | | | | | | | | Make llvm_unreachable take an optional string, thus moving the cerr<< out of line. LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for NDEBUG builds. llvm-svn: 75379
* merge the common darwin settings from the X86/PPC/ARM targetsChris Lattner2009-06-191-0/+47
| | | | | | | | into DarwinTargetAsmInfo.cpp. The remaining differences should be evaluated. It seems strange that x86/arm has .zerofill but ppc doesn't, etc. llvm-svn: 73742
* Rename PaddedSize to AllocSize, in the hope that thisDuncan Sands2009-05-091-2/+2
| | | | | | | will make it more obvious what it represents, and stop it being confused with the StoreSize. llvm-svn: 71349
* Do not propagate ELF-specific stuff (data.rel) into other targets. This ↵Anton Korobeynikov2009-03-301-3/+0
| | | | | | simplifies code and also ensures correctness. llvm-svn: 68032
* Add data.rel stuffAnton Korobeynikov2009-03-301-0/+3
| | | | llvm-svn: 68031
* Introduce new linkage types linkonce_odr, weak_odr, common_odrDuncan Sands2009-03-071-1/+1
| | | | | | | | | | | | | | | | | | | | | and extern_weak_odr. These are the same as the non-odr versions, except that they indicate that the global will only be overridden by an *equivalent* global. In C, a function with weak linkage can be overridden by a function which behaves completely differently. This means that IP passes have to skip weak functions, since any deductions made from the function definition might be wrong, since the definition could be replaced by something completely different at link time. This is not allowed in C++, thanks to the ODR (One-Definition-Rule): if a function is replaced by another at link-time, then the new function must be the same as the original function. If a language knows that a function or other global can only be overridden by an equivalent global, it can give it the weak_odr linkage type, and the optimizers will understand that it is alright to make deductions based on the function body. The code generators on the other hand map weak and weak_odr linkage to the same thing. llvm-svn: 66339
* Treat [1 x i8] zeroinitializer as a C string, placing such stuff intoAnton Korobeynikov2009-01-271-2/+2
| | | | | | | | | | | | mergeable string section. I don't see any bad impact of such decision (rather then placing it into mergeable const section, as it was before), but at least Darwin linker won't complain anymore. The problem in LLVM is that we don't have special type for string constants (like gcc does). Even more, we have two separate types: ConstatArray for non-null strings and ConstantAggregateZero for null stuff.... It's a bit weird :) llvm-svn: 63142
* Add the private linkage.Rafael Espindola2009-01-151-1/+1
| | | | llvm-svn: 62279
* Rename getABITypeSize to getTypePaddedSize, asDuncan Sands2009-01-121-2/+2
| | | | | | suggested by Chris. llvm-svn: 62099
* squash warnings.Devang Patel2009-01-051-0/+1
| | | | llvm-svn: 61707
* Refactor various TargetAsmInfo subclasses' TargetMachine members awayDan Gohman2008-11-031-7/+6
| | | | | | adding a TargetMachine member to the base TargetAsmInfo class instead. llvm-svn: 58624
* (re)Put const weak strings in appropriate section on Darwin.Dale Johannesen2008-10-081-1/+3
| | | | | | g++dg/abi/key2.C llvm-svn: 57309
* Rename isWeakForLinker to mayBeOverridden. Use itDuncan Sands2008-09-291-1/+1
| | | | | | | instead of hasWeakLinkage in a bunch of optimization passes. llvm-svn: 56782
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