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path: root/lib/MC/MCAsmInfo.cpp
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2011-12-03Emit the ctors in the proper order on ARM/EABI.Anton Korobeynikov
Maybe some targets should use this as well. Patch by Evgeniy Stepanov! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145781 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Teach our Dwarf emission to use the string pool.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143097 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-14Disable code/data region symbols on ELF targets, where different mapping ↵Owen Anderson
symbols are used for ARM/Thumb mode code. This should only be re-enabled once we have a solution to properly distinguish these. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04Teach the MC to output code/data region marker labels in MachO and ELF ↵Owen Anderson
modes. These are used by disassemblers to provide better disassembly, particularly on targets like ARM Thumb that like to intermingle data in the TEXT segment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Darwin wants ctors/dtors to be ordered the other way round to linux.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139015 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Don't drop alignment info on local common symbols.Benjamin Kramer
- On COFF the .lcomm directive has an alignment argument. - On ELF we fall back to .local + .comm Based on a patch by NAKAMURA Takumi. Fixes PR9337, PR9483 and PR10128. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138976 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27Support .code32 and .code64 in X86 assembler.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136197 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15Move some parts of TargetAsmInfo down to MCAsmInfo. This is not the greatestEvan Cheng
solution but it is a small step towards removing the horror that is TargetAsmInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135237 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07This patch adds a flag in MCAsmInfo that indicates whether dwarf registerAkira Hatanaka
numbers should be printed instead of symbolic register names in MCAsmStreamer::EmitRegisterName. This is necessary because some versions of GNU assembler won't accept code in which symbolic register names are used in cfi directives. There is no change in behavior unless the flag is explicitly set to true by a backend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134635 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-10Rename DwarfRequiresRelocationForStmtList toRafael Espindola
DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131148 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06Dead code elimination.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05Don't produce a __debug_frame.Rafael Espindola
I tested both gdb on a bootstrapped clang and and the gdb testsuite on OS X (snow leopard) and both are happy using __eh_frame. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130937 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, butRafael Espindola
it is both inefficient and unexpected by dwarfdump. Change to a DW_FORM_data4. While in here, change the predicate name to reflect that the position is not really absolute (it is an offset), just that the linker needs a relocation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130846 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-01Simplify the handling of pcrel relocations on ELF. Now we do the right thingRafael Espindola
for all symbol differences and can drop the old EmitPCRelSymbolValue method. This also make getExprForFDESymbol on ELF equal to the one on MachO, and it can be made non-virtual. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130634 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28Add the getExprForFDESymbol method that responsible for computing theRafael Espindola
expressions used in the FDE to refer to symbols. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130437 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it whenRafael Espindola
converting the symbol passed to .cfi_personality into bytes is the file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130400 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24Clean up assembly statement separator support.Jim Grosbach
The MC asm lexer wasn't honoring a non-default (anything but ';') statement separator. Fix that, and generalize a bit to support multi-character statement separators. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128227 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23Omit private_extern declarations of extern symbols; followup toStuart Hastings
r124468. Patch by Rafael Avila de Espindola! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a muchRafael Espindola
better name and matches what is used in the MachO writer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122443 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04There are two reasons why we might want to useRafael Espindola
foo = a - b .long foo instead of just .long a - b First, on darwin9 64 bits the assembler produces the wrong result. Second, if "a" is the end of the section all darwin assemblers (9, 10 and mc) will not consider a - b to be a constant but will if the dummy foo is created. Split how we handle these cases. The first one is something MC should take care of. The second one has to be handled by the caller. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120889 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoidRafael Espindola
doing that if the target is darwin10 or newer. This fixes *) Direct object emission was producing objects without the workaround on darwin9. *) Assembly printing was producing objects with the workaround on linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29Merge System into Support.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-19Added support for the Mach-O .symbol_resolver directive. rdar://8673046Kevin Enderby
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119816 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Change CodeGen to use .loc directives. This produces a lot more readable outputRafael Espindola
and testing is easier. A good example is the unknown-location.ll test that now can just look for ".loc 1 0 0". We also don't use a DW_LNE_set_address for every address change anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119613 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-22allow target-specific label suffixes, patch by Yuri Gribov!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114592 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02Fix .debug_range for linux. Patch by Krister Wombell.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Use absolute label for DW_AT_stmt_list if a target does not prefer offset here.Devang Patel
This patch was developed on top of original patch by Artur Pietrek. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112678 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08Revert some unneeded parts of the change in r107886 for theKevin Enderby
.weak_def_can_be_hidden directive. Chris pointed out that the MCAsmInfo.h/.cpp chunks aren't needed for this until the compiler starts generating these. And when that happens it will be more convenient for it to be a bool than a const char*. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107906 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08Added the darwin .weak_def_can_be_hidden directive.Kevin Enderby
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107886 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Revert r107205 and r107207.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Introducing the "linker_weak" linkage type. This will be used for Objective-CBill Wendling
metadata types which should be marked as "weak", but which the linker will remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is defined like this: .globl l_objc_msgSend_fixup_alloc .weak_definition l_objc_msgSend_fixup_alloc .section __DATA, __objc_msgrefs, coalesced .align 3 l_objc_msgSend_fixup_alloc: .quad _objc_msgSend_fixup .quad L_OBJC_METH_VAR_NAME_1 This is different from the "linker_private" linkage type, because it can't have the metadata defined with ".weak_definition". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-20Partial code for emitting thread local bss data.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104197 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Add support for assemblers that don't support periods in a nameMon P Wang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102594 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-04eliminate the magic AbsoluteDebugSectionOffsets MAI hook,Chris Lattner
which is really a property of the section being referenced. Add a predicate to MCSection to replace it. Yay for reduction in magic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100367 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-04isAbsoluteEHSectionOffsets always returns false, eliminate it Chris Lattner
and substitute false at the one call site. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12move fastcall/stdcall mangling up into Mangler.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98384 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10move three lowering hooks from MAI to TLOF and make one of themChris Lattner
semantic instead of syntactic. This completes MCization of darwin/x86[-64]! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05MC: Change default comment column to 40 characters.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26Eliminate SetDirective, and replace it with HasSetDirective.Chris Lattner
Default HasSetDirective to true, since most targets have it. The targets that claim to not have it probably do, or it is spelled differently. These include Blackfin, Mips, Alpha, and PIC16. All of these except pic16 are normal ELF targets, so they almost certainly have it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94585 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF.Rafael Espindola
Original patch by Sandeep Patel and updated by me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94582 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26eliminate MCAsmInfo::NeedsSet: we now just use .set on any platformChris Lattner
that has it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94581 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25rename MAI::PICJumpTableDirective to MAI::GPRel32Directive toChris Lattner
make it clear what it is, instead of how it is used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94448 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25remove JumpTableDirective, it is always null.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94445 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25all supported target now have aligned common support.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94413 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23mcize lcomm, simplify .comm, extend both to support 64-bit sizes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94299 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23resolve a fixme: the "nonexecutable stack directive" is actuallyChris Lattner
a .section. Switch to it with SwitchSection. However, I think that this directive should be safe on any ELF target. If so, we should hoist it up out of the X86 and SystemZ targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23mcize visibility directives.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94295 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23mcstreamerize .no_dead_strip and .reference for static ctors/dtors.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94290 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-20revert 93934, removing the MCAsmInfo endianness bit. I can'tChris Lattner
stomache MCAsmInfo having this, and I found a better solution to this layering issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93985 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19give MCAsmInfo a 'has little endian' bit. This is unfortunate, butChris Lattner
I really want clients of the streamer to be able to say "emit this 64-bit integer" and have it get broken down right by the streamer. I may change this in the future, we'll see how it works out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93934 91177308-0d34-0410-b5e6-96231b3b80d8
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