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2012-02-07Convert assert(0) to llvm_unreachableCraig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149961 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-28Ensure .AliasedSymbol() is called on all uses of getSymbol(). Affects ARM ↵James Molloy
and MIPS ELF backends. Fixes PR11877 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149180 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-27Better user diagnostics for more ARM MachO relocation errors.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149102 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Keep source information, if available, around for ARM Fixups.Jim Grosbach
Adjust an example MachObjectWriter diagnostic to use the information to issue a better message. Before: LLVM ERROR: unknown ARM fixup kind! After: x.s:6:5: error: unsupported relocation on symbol beq bar ^ rdar://9800182 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149093 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Add support for the R_ARM_TARGET1 relocation, which should be given to ↵James Molloy
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
2012-01-24Widen the instruction encoder that TblGen emits to a 64 bits, which should ↵Owen Anderson
accomodate every target I can think of offhand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148833 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24Revert r148686 (and r148694, a fix to it) due to a serious layeringChandler Carruth
violation -- MC cannot depend on CodeGen. Specifically, the MCTargetDesc component of each target is actually a subcomponent of the MC library. As such, it cannot depend on the target-independent code generator, because MC itself cannot depend on the target-independent code generator. This change moved a flag from the ARM MCTargetDesc file ARMMCAsmInfo.cpp to the CodeGen layer in ARMException.cpp, leaving behind an 'extern' to refer back to it. That layering order isn't viable givin the constraints outlined above. Commandline flags are designed to be static specifically to avoid these types of bugs. Fixing this is likely going to require some non-trivial refactoring. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148759 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-23An option to selectively enable parts of ARM EHABI support.Evgeniy Stepanov
This change adds an new value to the --arm-enable-ehabi option that disables emitting unwinding descriptors. This mode gives a working backtrace() without the (currently broken) exception support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148686 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20More dead code removal (using -Wunreachable-code)David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19Silence warnings about mixing enums.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148495 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19Thumb2 relaxation for tADR to t2ADR.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148456 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19Add comment and fix range check in condition.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148455 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18Thumb2 alternate syntax for LDR(literal) and friends.Jim Grosbach
Explicit pc-relative syntax. For example, "ldrb r2, [pc, #-22]". rdar://10250964 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148432 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18Thumb2 relaxation for LDR(literal).Jim Grosbach
If the fixup is out of range for the Thumb1 instruction, relax it to the Thumb2 encoding instead. rdar://10711829 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148424 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18Tidy up. MCAsmBackend naming conventions.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148400 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18Thumb2 load/store fixups don't set the thumb bit.Jim Grosbach
Load/store instructions w/ a fixup to be relative a function marked as thumb don't use the low bit to specify thumb vs. non-thumb like interworking branches do, so don't set it when dealing with those fixups. rdar://10348687. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18Move some ARM specific MCAssmebler bits into the ARMAsmBackend.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148364 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10Move default case for covered enum outside of switch.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147870 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10Fix a -Wreturn-type warning in g++.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147867 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10Remove unnecessary default cases in switches that cover all enum values.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Fix incorrect relocation generation. Patch by Kristof Beyls.Rafael Espindola
Fixes PR11214. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147180 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Make the virtual methods in ARMELFObjectWriter public.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147132 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Hopefully fix the cmake build.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147121 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Fix name in comments.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147119 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Unbreak cmake build after r147115.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147117 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Move the ARM specific parts of the ELF writer to Target/ARM.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147115 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-21Reduce the exposure of Triple::OSType in the ELF object writer. This willRafael Espindola
avoid including ADT/Triple.h in many places when the target specific bits are moved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147059 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-20Unweaken vtables as per ↵David Blaikie
http://llvm.org/docs/CodingStandards.html#ll_virtual_anch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146960 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-19ARM assembly parsing and encoding support for LDRD(label).Jim Grosbach
rdar://9932658 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146921 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-19ARM NEON relax parse time diagnostics for alignment specifiers.Jim Grosbach
There's more variation that we need to handle. Error checking will need to be on operand predicates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146884 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-12LLVMBuild: Remove trailing newline, which irked me.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146409 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-07Nuke inadvertant debugging commit.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146057 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-07Darwin assembler improved relocs when w/o subsections_via_symbols.Jim Grosbach
When the file isn't being built with subsections-via-symbols, symbol differences involving non-local symbols can be resolved more aggressively. Needed for gas compatibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Tidy up value checking.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145895 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Fix ARM handling of tBcc branch relaxation.Jim Grosbach
rdar://10069056 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145885 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Move target-specific logic out of generic MCAssembler.Jim Grosbach
Whether a fixup needs relaxation for the associated instruction is a target-specific function, as the FIXME indicated. Create a hook for that and use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145881 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05Simple branch relaxation for Thumb2 Bcc instructions.Jim Grosbach
Not right yet, as the rules for when to relax in the MCAssembler aren't (yet) correct for ARM. This is a step in the proper direction, though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145871 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02ARM encoder method needs the physical register number, not the enum.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145711 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-29build/CMake: Finish removal of add_llvm_library_dependencies.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145420 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-29Better fix for ARM MOVT relocation encoding of thumb bit.Jim Grosbach
Replaces r145318 with a more targetted fix for the relocation handling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145346 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-16Generalize the fixup info for ARM mode.Jim Grosbach
We don't (yet) have the granularity in the fixups to be specific about which bitranges are affected. That's a future cleanup, but we're not there yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-16Fix encoding of NOP used for padding in ARM mode .align.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-16Sink codegen optimization level into MCCodeGenInfo along side relocation modelEvan Cheng
and code model. This eliminates the need to pass OptLevel flag all over the place and makes it possible for any codegen pass to use this information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144788 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-12build: Attempt to rectify inconsistencies between CMake and LLVMBuild ↵Daniel Dunbar
versions of explicit dependencies. - The hope is that we have a tool/test to verify these are accurate (and tight) soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144444 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-03build: Add initial cut at LLVMBuild.txt files.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143634 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01ARM VLD/VST assembly parsing for symbolic address operands.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18Remove NaClModeDavid Meyer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142338 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03Tidy up. 80 columns.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141043 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-30Correct for my over-eager delete finger.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140892 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-30ARM Darwin default relocation model is PIC.Jim Grosbach
This matches clang, so default options in llc and friends are now closer to clang's defaults. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140863 91177308-0d34-0410-b5e6-96231b3b80d8
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