aboutsummaryrefslogtreecommitdiffstats
path: root/lib/MC/MCAsmInfo.cpp
Commit message (Collapse)AuthorAgeFilesLines
* Fix alignment of .comm and .lcomm on mingw32.Benjamin Kramer2012-09-071-1/+1
| | | | | | | | For some reason .lcomm uses byte alignment and .comm log2 alignment so we can't use the same setting for both. Fix this by reintroducing the LCOMM enum. I verified this against mingw's gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163420 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Overhaul handling of .lcommBenjamin Kramer2012-09-071-1/+1
| | | | | | | | | | | | | - Darwin lied about not supporting .lcomm and turned it into zerofill in the asm parser. Push the zerofill-conversion down into macho-specific code. - This makes the tri-state LCOMMType enum superfluous, there are no targets without .lcomm. - Do proper error reporting when trying to use .lcomm with alignment on a target that doesn't support it. - .comm and .lcomm alignment was parsed in bytes on COFF, should be power of 2. - Fixes PR13755 (.lcomm crashes on ELF). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163395 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove another duplicated variable. We only need one to tell us if the linkerRafael Espindola2012-06-221-1/+0
| | | | | | knows dwarf or not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158993 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a FIXME: DwarfRequiresRelocationForSectionOffset is the same asRafael Espindola2012-06-221-1/+0
| | | | | | DwarfUsesRelocationsAcrossSections. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158992 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit relocations for DW_AT_location entries on systems which need it. This isNick Lewycky2012-06-221-1/+1
| | | | | | | a recommit of r127757. Fixes PR9493. Patch by Paul Robinson! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158957 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor data-in-code annotations.Jim Grosbach2012-05-181-6/+1
| | | | | | | | | | | | | | | | | | | | | | Use a dedicated MachO load command to annotate data-in-code regions. This is the same format the linker produces for final executable images, allowing consistency of representation and use of introspection tools for both object and executable files. Data-in-code regions are annotated via ".data_region"/".end_data_region" directive pairs, with an optional region type. data_region_directive := ".data_region" { region_type } region_type := "jt8" | "jt16" | "jt32" | "jta32" end_data_region_directive := ".end_data_region" The previous handling of ARM-style "$d.*" labels was broken and has been removed. Specifically, it didn't handle ARM vs. Thumb mode when marking the end of the section. rdar://11459456 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157062 91177308-0d34-0410-b5e6-96231b3b80d8
* Nuke a few dead remnants of the CBE.Jim Grosbach2012-05-051-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156241 91177308-0d34-0410-b5e6-96231b3b80d8
* Output UTF-8-encoded characters as identifier characters into assemblySean Hunt2012-04-071-0/+1
| | | | | | | | | | | | | | by default. This is a behaviour configurable in the MCAsmInfo. I've decided to turn it on by default in (possibly optimistic) hopes that most assemblers are reasonably sane. If this proves a problem, switching to default seems reasonable. I'm not sure if this is the opportune place to test, but it seemed good to make sure it was tested somewhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154235 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new MachineJumpTableInfo entry type, EK_GPRel64BlockAddress, which isAkira Hatanaka2012-02-031-0/+1
| | | | | | | | | | 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
* Emit the ctors in the proper order on ARM/EABI.Anton Korobeynikov2011-12-031-1/+0
| | | | | | | | | 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
* Teach our Dwarf emission to use the string pool.Nick Lewycky2011-10-271-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143097 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable code/data region symbols on ELF targets, where different mapping ↵Owen Anderson2011-10-141-1/+1
| | | | | | 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
* Teach the MC to output code/data region marker labels in MachO and ELF ↵Owen Anderson2011-10-041-0/+6
| | | | | | 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
* Darwin wants ctors/dtors to be ordered the other way round to linux.Duncan Sands2011-09-021-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139015 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't drop alignment info on local common symbols.Benjamin Kramer2011-09-011-1/+1
| | | | | | | | | | | - 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
* Support .code32 and .code64 in X86 assembler.Evan Cheng2011-07-271-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136197 91177308-0d34-0410-b5e6-96231b3b80d8
* Move some parts of TargetAsmInfo down to MCAsmInfo. This is not the greatestEvan Cheng2011-07-151-0/+3
| | | | | | | | 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
* This patch adds a flag in MCAsmInfo that indicates whether dwarf registerAkira Hatanaka2011-07-071-0/+1
| | | | | | | | | | | | 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
* Rename DwarfRequiresRelocationForStmtList toRafael Espindola2011-05-101-1/+1
| | | | | | 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
* Dead code elimination.Rafael Espindola2011-05-061-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130984 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't produce a __debug_frame.Rafael Espindola2011-05-051-1/+1
| | | | | | | 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
* Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, butRafael Espindola2011-05-041-1/+1
| | | | | | | | | | | 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
* Simplify the handling of pcrel relocations on ELF. Now we do the right thingRafael Espindola2011-05-011-2/+14
| | | | | | | | | | 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
* Add the getExprForFDESymbol method that responsible for computing theRafael Espindola2011-04-281-0/+6
| | | | | | 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
* Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it whenRafael Espindola2011-04-281-0/+8
| | | | | | 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
* Clean up assembly statement separator support.Jim Grosbach2011-03-241-1/+1
| | | | | | | | | | 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
* Omit private_extern declarations of extern symbols; followup toStuart Hastings2011-02-231-0/+1
| | | | | | | r124468. Patch by Rafael Avila de Espindola! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126297 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a muchRafael Espindola2010-12-221-1/+1
| | | | | | 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
* There are two reasons why we might want to useRafael Espindola2010-12-041-0/+1
| | | | | | | | | | | | | | | | 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
* Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoidRafael Espindola2010-12-041-0/+1
| | | | | | | | | | | 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
* Merge System into Support.Michael J. Spencer2010-11-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
* Added support for the Mach-O .symbol_resolver directive. rdar://8673046Kevin Enderby2010-11-191-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119816 91177308-0d34-0410-b5e6-96231b3b80d8
* Change CodeGen to use .loc directives. This produces a lot more readable outputRafael Espindola2010-11-181-1/+0
| | | | | | | | 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
* allow target-specific label suffixes, patch by Yuri Gribov!Chris Lattner2010-09-221-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114592 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix .debug_range for linux. Patch by Krister Wombell.Devang Patel2010-09-021-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112830 91177308-0d34-0410-b5e6-96231b3b80d8
* Use absolute label for DW_AT_stmt_list if a target does not prefer offset here.Devang Patel2010-08-311-0/+1
| | | | | | | 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
* Revert some unneeded parts of the change in r107886 for theKevin Enderby2010-07-081-1/+0
| | | | | | | | | | .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
* Added the darwin .weak_def_can_be_hidden directive.Kevin Enderby2010-07-081-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107886 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r107205 and r107207.Bill Wendling2010-06-291-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107215 91177308-0d34-0410-b5e6-96231b3b80d8
* Introducing the "linker_weak" linkage type. This will be used for Objective-CBill Wendling2010-06-291-0/+1
| | | | | | | | | | | | | | | | | | | | 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
* Partial code for emitting thread local bss data.Eric Christopher2010-05-201-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104197 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for assemblers that don't support periods in a nameMon P Wang2010-04-291-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102594 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate the magic AbsoluteDebugSectionOffsets MAI hook,Chris Lattner2010-04-041-1/+0
| | | | | | | | | | | 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
* isAbsoluteEHSectionOffsets always returns false, eliminate it Chris Lattner2010-04-041-1/+0
| | | | | | | 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
* move fastcall/stdcall mangling up into Mangler.Chris Lattner2010-03-121-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98384 91177308-0d34-0410-b5e6-96231b3b80d8
* move three lowering hooks from MAI to TLOF and make one of themChris Lattner2010-03-101-3/+0
| | | | | | | | 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
* MC: Change default comment column to 40 characters.Daniel Dunbar2010-02-051-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95378 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate SetDirective, and replace it with HasSetDirective.Chris Lattner2010-01-261-1/+1
| | | | | | | | | | | | | 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
* Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF.Rafael Espindola2010-01-261-0/+1
| | | | | | | | 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
* eliminate MCAsmInfo::NeedsSet: we now just use .set on any platformChris Lattner2010-01-261-1/+0
| | | | | | | that has it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94581 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.1 at 2025-03-22 13:38:43 +0000