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* Assembler should accept redefinitions of unused variable symbols.Jim Grosbach2012-03-202-2/+2
| | | | | | rdar://11027851 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153137 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up.Jim Grosbach2012-03-201-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153136 91177308-0d34-0410-b5e6-96231b3b80d8
* MC asm parser macro argument count was wrong when empty.Jim Grosbach2012-03-171-0/+5
| | | | | | | | evaluated to '1' when the argument list was empty (should be '0'). rdar://11057257 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152967 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement relocation-overflow behavior for PE/COFF.Michael J. Spencer2012-03-151-2/+29
| | | | | | | | | This needs a test, but it will take some time to figure out the best way to get an input that will produce > 2^16 relocs. Patch by Graydon Hoare! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152787 91177308-0d34-0410-b5e6-96231b3b80d8
* Make MCRegisterInfo available to the the MCInstPrinter.Jim Grosbach2012-03-052-2/+3
| | | | | | | Used to allow context sensitive printing of super-register or sub-register references. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152043 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly initialize LineSectionSymbol. Thanks to Duncan Sands for noticing it.Rafael Espindola2012-03-032-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151979 91177308-0d34-0410-b5e6-96231b3b80d8
* Make MemoryObject accessor members const againDerek Schuff2012-02-292-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151687 91177308-0d34-0410-b5e6-96231b3b80d8
* On ELF, create relocations to the abbreviation and line sections when producingRafael Espindola2012-02-283-10/+34
| | | | | | | | | | debug info for assembly files. We were already doing the right thing when producing debug info for C/C++. ELF linkers don't know dwarf, so they depend on these relocations to produce valid dwarf output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151655 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM BL/BLX instruction fixups should use relocations.Jim Grosbach2012-02-271-2/+4
| | | | | | | | | | | | | We on the linker to resolve calls to the appropriate BL/BLX instruction to make interworking function correctly. It uses the symbol in the relocation to do that, so we need to be careful about being too clever. To enable this for ARM mode, split the BL/BLX fixup kind off from the unconditional-branch fixups. rdar://10927209 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151571 91177308-0d34-0410-b5e6-96231b3b80d8
* Grammar-o.Eric Christopher2012-02-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151418 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM Thumb symbol references in assembly need the low bit set.Jim Grosbach2012-02-241-0/+5
| | | | | | | | | Add support for a missed case when the symbols in a difference expression are in the same section but not the same fragment. rdar://10924681 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151345 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit global ctors into .CRT$XCU instead of .ctors on Win32. Patch by Joe Groff!Michael J. Spencer2012-02-231-6/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151289 91177308-0d34-0410-b5e6-96231b3b80d8
* Bump SmallString to the minimum required amount for raw_ostream to avoid ↵Benjamin Kramer2012-02-231-2/+2
| | | | | | | | allocation. It's is a bit annoying, we should hide this implementation detail better. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151284 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Fix the MCNullStreamer which was broken in r147763.Daniel Dunbar2012-02-221-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151213 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch the llvm::Triple class to immediately parse the triple string onChandler Carruth2012-02-211-4/+1
| | | | | | | | | construction. Simplify its interface, implementation, and users accordingly as there is no longer an 'uninitialized' state to check for. Also, fixes a bug lurking in the interface as there was one method that didn't correctly check for initialization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151024 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code. Improve llvm_unreachable text. Simplify some control flow.Ahmed Charles2012-02-191-16/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150918 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo in comment ldopen() -> dlopen().Kevin Enderby2012-02-171-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150836 91177308-0d34-0410-b5e6-96231b3b80d8
* Put back the initializing the targets in the disassembler API with a comment asKevin Enderby2012-02-171-0/+13
| | | | | | | | to why this is needed. This broke the darwin's otool(1) program. This change was made in r144385. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150832 91177308-0d34-0410-b5e6-96231b3b80d8
* Generate the correct EH frame section types on Solaris, this time without ↵David Chisnall2012-02-171-1/+8
| | | | | | breaking other platforms... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150819 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r150814. It turns out that there is a good reason for this after all...David Chisnall2012-02-171-26/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150818 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't lazily allocate eh_frame. We're not lazily allocating things like the ↵David Chisnall2012-02-171-22/+26
| | | | | | | | | | LSDA, which are only used when the eh frame is used, so this lazy allocation doesn't really make sense. Fix the type of eh_frame on Solaris so that Sun ld doesn't fail to combine them (thus making it impossible for the unwind library to find them and breaking exceptions). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150814 91177308-0d34-0410-b5e6-96231b3b80d8
* For ELF, also call fixSymbolsInTLSFixups() on expressions passed to ↵David Meyer2012-02-151-0/+9
| | | | | | EmitValue (literal values). Previously only called on expressions in instructions. New test cases added to tls.s, tls-i386.s. Resolves PR11981. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150582 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for implicit TLS model used with MS VC runtime.Anton Korobeynikov2012-02-112-0/+7
| | | | | | | Patch by Kai Nacke! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150307 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert assert(0) to llvm_unreachableCraig Topper2012-02-0710-40/+31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149967 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable streaming of bitcodeDerek Schuff2012-02-062-4/+4
| | | | | | | | | This CL delays reading of function bodies from initial parse until materialization, allowing overlap of compilation with bitcode download. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149918 91177308-0d34-0410-b5e6-96231b3b80d8
* Modified the Enhanced Disassembler to create andSean Callanan2012-02-043-31/+40
| | | | | | | | | | | cache disassemblers according to the string value of the target triple, not according to the enum of the triple CPU. The reason for this is that certain attributes of the instruction set are not reflected in the enum, but only in the string. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149773 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new MachineJumpTableInfo entry type, EK_GPRel64BlockAddress, which isAkira Hatanaka2012-02-033-0/+13
| | | | | | | | | | needed to emit a 64-bit gp-relative relocation entry. Make changes necessary for emitting jump tables which have entries with directive .gpdword. This patch does not implement the parts needed for direct object emission or JIT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149668 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed a crash in llvm-mc for Mach-O when a symbol difference expression uses aKevin Enderby2012-01-311-0/+2
| | | | | | | | | | symbol from an assignment. In this case the symbol did not have a fragment so MCObjectWriter::IsSymbolRefDifferenceFullyResolved() should not have been calling IsSymbolRefDifferenceFullyResolvedImpl() with a NULL fragment and should just have returned false in that case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149442 91177308-0d34-0410-b5e6-96231b3b80d8
* Add assembler dialect attribute in asm parser which lets target specific asm ↵Devang Patel2012-01-311-2/+14
| | | | | | parser change dialect on the fly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149396 91177308-0d34-0410-b5e6-96231b3b80d8
* Silence GCC's -Wreturn-type warning.Benjamin Kramer2012-01-281-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149179 91177308-0d34-0410-b5e6-96231b3b80d8
* Small improvement to the recursion detection logic from the previous commit.Rafael Espindola2012-01-281-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149175 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle recursive variable definitions directly. This gives us better errorRafael Espindola2012-01-281-11/+15
| | | | | | messages and allows us to fix PR11865. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149174 91177308-0d34-0410-b5e6-96231b3b80d8
* Source information in 'expected relocatable expression' diagnostic.Jim Grosbach2012-01-271-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149105 91177308-0d34-0410-b5e6-96231b3b80d8
* Better diagnostic for malformed .org assembly directive.Jim Grosbach2012-01-275-12/+18
| | | | | | Provide source line number information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149101 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up.Jim Grosbach2012-01-261-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149096 91177308-0d34-0410-b5e6-96231b3b80d8
* Add simple support for keeping MCFixup source information.Jim Grosbach2012-01-261-0/+19
| | | | | | | Can be used to issue more user friendly diagnostics for faulty relocation constructs and such. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149092 91177308-0d34-0410-b5e6-96231b3b80d8
* Add SourceMgr to MCContext for backend diagnostics.Jim Grosbach2012-01-261-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149090 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for the R_ARM_TARGET1 relocation, which should be given to ↵James Molloy2012-01-261-1/+3
| | | | | | | | | | relocations applied to all C++ constructors and destructors. This enables the linker to match concrete relocation types (absolute or relative) with whatever library or C++ support code is being linked against. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149057 91177308-0d34-0410-b5e6-96231b3b80d8
* Properly emit ctors / dtors with priorities into desired sectionsAnton Korobeynikov2012-01-251-7/+1
| | | | | | | | | | and let linker handle the rest. This finally fixes PR5329 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148990 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM Darwin symbol ref differences w/o subsection-via-symbols.Jim Grosbach2012-01-241-1/+2
| | | | | | | | When not using subsections via symbols, the assembler can resolve symbol differences (including pcrel references) to non-local labels at assembly time, not just those in the same atom. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148865 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for .cfi_signal_frame. Fixes pr11762.Rafael Espindola2012-01-234-7/+48
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148733 91177308-0d34-0410-b5e6-96231b3b80d8
* More dead code removal (using -Wunreachable-code)David Blaikie2012-01-205-8/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing breaks to switch.Benjamin Kramer2012-01-201-13/+25
| | | | | | Found by the clang static analyzer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148543 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove a bunch of unused variable assignments.Benjamin Kramer2012-01-201-9/+2
| | | | | | Found by the clang static analyzer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148541 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a dump() implementation for sub-instruction MCOperands.Owen Anderson2012-01-191-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148493 91177308-0d34-0410-b5e6-96231b3b80d8
* MCAssembler tweak for determining when a symbol difference is resolved.Jim Grosbach2012-01-181-1/+2
| | | | | | | | | | | | If the two fragments are in the same Atom, then the difference expression is resolvable at compile time. Previously we were checking that they were in the same fragment, but that breaks down in the presence of instruction relaxation which has multiple fragments in the same atom. rdar://10711829 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148423 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up. MCAsmBackend naming conventions.Jim Grosbach2012-01-183-10/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148400 91177308-0d34-0410-b5e6-96231b3b80d8
* Move some ARM specific MCAssmebler bits into the ARMAsmBackend.Jim Grosbach2012-01-181-9/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148364 91177308-0d34-0410-b5e6-96231b3b80d8
* MC tweak symbol difference resolution for non-local symbols.Jim Grosbach2012-01-171-2/+2
| | | | | | | | | | | | | | | | When the non-local symbol in the expression is in the same fragment as the second symbol, the assembler can still evaluate the expression without needing a relocation. For example, on ARM: _foo: ldr lr, (_foo - 4) rdar://10348687 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148341 91177308-0d34-0410-b5e6-96231b3b80d8
* The error check for using -g with a .s file already containing dwarf .fileKevin Enderby2012-01-111-4/+4
| | | | | | | | directives was in the wrong place and getting triggered incorectly with a cpp .file directive. This change fixes that and adds a test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147951 91177308-0d34-0410-b5e6-96231b3b80d8
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