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186 Commits

Author SHA1 Message Date
Bill Wendling 066b5f6724 GCC doesn't emit DW_EH_PE_sdata4 for the FDE encoding on Darwin. I'm not sure 
about other platforms.

llvm-svn: 61415
 2008-12-24 05:25:49 +00:00
Rafael Espindola cda011b5ad Fix bug 3140. 
Print a single parameter .file directive if we have an ELF target.

llvm-svn: 60480
 2008-12-03 11:01:37 +00:00
Dan Gohman ac41d9f5d8 Refactor various TargetAsmInfo subclasses' TargetMachine members away 
adding a TargetMachine member to the base TargetAsmInfo class instead.

llvm-svn: 58624
 2008-11-03 18:22:42 +00:00
Duncan Sands 08d91178e9 Rename isWeakForLinker to mayBeOverridden. Use it 
instead of hasWeakLinkage in a bunch of optimization
passes.

llvm-svn: 56782
 2008-09-29 11:25:42 +00:00
Anton Korobeynikov 87001fd6fd Reapply 56585:56589 with proper fix for some gcc versions 
llvm-svn: 56621
 2008-09-25 21:00:33 +00:00
Evan Cheng 84301390ae Temporarily backing out 56585:56589 to unbreak the build. 
llvm-svn: 56607
 2008-09-25 07:38:08 +00:00
Anton Korobeynikov 77aa975bdd Use crazy template-based inheritance instead of virtual one. 
llvm-svn: 56585
 2008-09-24 22:21:39 +00:00
Anton Korobeynikov 8e7b93938d Get rid of ReadOnlySection duplicate 
llvm-svn: 56582
 2008-09-24 22:20:27 +00:00
Anton Korobeynikov 5906234c1d Get rid of now unused {Four,Eight,Sixteen}ByteConstantSection 
llvm-svn: 56580
 2008-09-24 22:18:54 +00:00
Anton Korobeynikov 22db30548d Get rid of duplicate char*/Section* stuff for TLS sections 
llvm-svn: 56577
 2008-09-24 22:17:06 +00:00
Anton Korobeynikov 7497762606 Get rid of duplicate char*/Section* DataSection 
llvm-svn: 56575
 2008-09-24 22:16:16 +00:00
Anton Korobeynikov f8dc8aac3c Get rid of duplicate char*/Section* TextSection 
llvm-svn: 56574
 2008-09-24 22:15:21 +00:00
Anton Korobeynikov 076e905b94 Move actual section printing stuff to AsmPrinter from TAI reducing heap traffic. 
llvm-svn: 56573
 2008-09-24 22:14:23 +00:00
Dale Johannesen f080225490 Fix logic for not emitting no-dead-strip for some 
objects in llvm.used (thanks Anton).  Makes visible
the magic 'l' prefix for symbols on Darwin which are
to be passed through the assembler, then removed at
linktime (previously all references to this had been
hidden in the ObjC FE code, oh well).

llvm-svn: 55973
 2008-09-09 01:21:22 +00:00
Anton Korobeynikov 2ae5446b62 Add interface for section override. Use this for Sparc, since it should use named BSS section. 
llvm-svn: 54844
 2008-08-16 12:58:12 +00:00
Anton Korobeynikov bd890b1faf Move SLEB/ULEB size calculation routines from AsmPrinter to TargetAsmInfo. This makes JIT asmprinter-free. 
llvm-svn: 54843
 2008-08-16 12:57:46 +00:00
Anton Korobeynikov 44b4a9a05d Reduce heap trashing due to std::string construction / concatenation via caching of section flags string representations 
llvm-svn: 54842
 2008-08-16 12:57:07 +00:00
Evan Cheng df8c7faf60 Undo most of r54519. 
llvm-svn: 54534
 2008-08-08 17:56:50 +00:00
Evan Cheng 655fa0fec4 It's not legal to output a GV in a coalesced section if it's used in an ARM PIC relative constantpool. 
llvm-svn: 54519
 2008-08-08 06:56:16 +00:00
Anton Korobeynikov 8ab2f49536 Provide convenient helpers 
llvm-svn: 54451
 2008-08-07 09:51:54 +00:00
Anton Korobeynikov ef643a4850 Select section for constant pool entries 
llvm-svn: 54448
 2008-08-07 09:50:34 +00:00
Anton Korobeynikov 4fdeb9b2d3 Provide default implementation of different small-sections related stuff 
llvm-svn: 53920
 2008-07-22 17:09:59 +00:00
Bruno Cardoso Lopes 9cfd2f8e57 Basic support for small sections 
llvm-svn: 53907
 2008-07-22 15:26:53 +00:00
Dan Gohman efa4160fcc TargetAsmInfo::SectionForGlobal showed up in a profile. Simplify it a little. 
llvm-svn: 53639
 2008-07-15 18:37:51 +00:00
Anton Korobeynikov 56827c1b60 Use only 'subset' of flags 
llvm-svn: 53323
 2008-07-09 13:29:44 +00:00
Anton Korobeynikov daee281590 First sketch of special section objects 
llvm-svn: 53320
 2008-07-09 13:28:49 +00:00
Anton Korobeynikov 577c45dd74 Use isWeakForLinker() hook 
llvm-svn: 53318
 2008-07-09 13:27:59 +00:00
Anton Korobeynikov 13b9a22fb0 Fix several bugs in named sections handling 
llvm-svn: 53312
 2008-07-09 13:25:46 +00:00
Anton Korobeynikov 60919583b3 Add hacky way to distinguish named and named sections. This will be generalized in the future. 
llvm-svn: 53311
 2008-07-09 13:25:26 +00:00
Anton Korobeynikov d789b7c196 Use 'gnu.linkonce', where needed 
llvm-svn: 53310
 2008-07-09 13:24:55 +00:00
Anton Korobeynikov 7504c283f2 Fix thinko 
llvm-svn: 53309
 2008-07-09 13:24:38 +00:00
Anton Korobeynikov 4c37c3ad5b Provide section selection for X86 ELF targets 
llvm-svn: 53305
 2008-07-09 13:23:08 +00:00
Anton Korobeynikov 9d6939b5fc Provide general hook for section name calculation 
llvm-svn: 53304
 2008-07-09 13:22:46 +00:00
Anton Korobeynikov ab778022d5 Properly handle linkonce stuff 
llvm-svn: 53296
 2008-07-09 13:19:38 +00:00
Anton Korobeynikov 7680198798 Provide skeletone code for calculation of section, where global should be emitted into 
llvm-svn: 53295
 2008-07-09 13:19:08 +00:00
Anton Korobeynikov 3ee57868a5 Use 'llvm-linkonce' consistently 
llvm-svn: 53294
 2008-07-09 13:18:38 +00:00
Anton Korobeynikov 21539c6d1e Add default section name resolution routine 
llvm-svn: 53292
 2008-07-09 13:18:02 +00:00
Anton Korobeynikov aab504fb19 Constify 
llvm-svn: 53291
 2008-07-09 13:17:36 +00:00
Anton Korobeynikov 9e4ab5023a Add code for default section falgs computation 
llvm-svn: 53290
 2008-07-09 13:16:59 +00:00
Duncan Sands 04fb6bf468 Linux also does not require exception handling 
moves in order to get correct debug info.  Since
I can't imagine how any target could possibly
be any different, I've just stripped out the
option: now all the world's like Darwin!

llvm-svn: 53134
 2008-07-04 09:55:48 +00:00
Bill Wendling b7bd02be57 Darwin doesn't need exception handling information for the "move" info when 
debug information is being output, because it's leet!

llvm-svn: 52994
 2008-07-01 23:34:48 +00:00
Anton Korobeynikov 2e052a81fd Start refactoring of asmprinters: provide a TAI hook, which will select a 'section kind' for a global. 
llvm-svn: 52868
 2008-06-28 13:45:57 +00:00
Dale Johannesen 355b74acc2 Add StringConstantPrefix to control what the 
assembler names of string constants look like.

llvm-svn: 51909
 2008-06-03 18:09:06 +00:00
Duncan Sands e2b0bf43a7 Output correct exception handling and frame info 
on x86-64 linux.  This causes no regressions on
32 bit linux and 32 bit ppc.  More tests pass
on 64 bit ppc with no regressions.  I didn't
turn on eh on 64 bit linux because the intrinsics
needed to compile the eh runtime aren't done
yet.  But if you turn it on and link with the
mainline runtime then eh seems to work fine
on x86-64 linux with this patch.  Thanks to
Dale for testing.  The main point of the patch
is that if you output that some object is
encoded using 4 bytes you had better not output
8 bytes for it: the patch makes everything
consistent.

llvm-svn: 50825
 2008-05-07 19:11:09 +00:00
Dan Gohman bcde172222 Add AsmPrinter support for emitting a directive to declare that 
the code being generated does not require an executable stack.

Also, add target-specific code to make use of this on Linux
on x86. 

llvm-svn: 50634
 2008-05-05 00:28:39 +00:00
Anton Korobeynikov 0e8b146152 Use enumeration for preffered EH dwarf encoding reason 
llvm-svn: 47770
 2008-02-29 22:09:08 +00:00
Lauro Ramos Venancio 714eeb2d55 Initialize TextAlignFillValue. Fix revision 47703. 
llvm-svn: 47732
 2008-02-28 22:14:09 +00:00
Anton Korobeynikov ae24cca0e4 Preparation step for some cleanup/generalization in EH information emission: 
provide TAI hook for selection of EH data emission format. Currently unused.

llvm-svn: 47699
 2008-02-27 23:33:50 +00:00
Dale Johannesen 00dfb551cc Missed file from previous checkin. 
llvm-svn: 46030
 2008-01-15 23:25:27 +00:00
Dale Johannesen 7ecb3b79c7 Emit unused EH frames for weak definitions on Darwin, 
because assembler/linker can't cope with weak absolutes.
PR 1880.

llvm-svn: 45811
 2008-01-10 02:03:30 +00:00
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Gordon Henriksen 84c7325ca1 Setting GlobalDirective in TargetAsmInfo by default rather than 
providing a misleading facility. It's used once in the MIPS backend
and hardcoded as "\t.globl\t" everywhere else.

llvm-svn: 45338
 2007-12-23 20:58:16 +00:00
Dale Johannesen e70850cf7b Fix compiler warning. 
llvm-svn: 44261
 2007-11-21 00:45:00 +00:00
Dale Johannesen 763e110a9f Fix .eh table linkage issues on Darwin. Some EH support 
for Darwin PPC, but it's not fully working yet.

llvm-svn: 44258
 2007-11-20 23:24:42 +00:00
Dan Gohman a1d46c7d0a TargetAsmInfo::getAddressSize() was incorrect for x86-64 and 64-bit targets 
other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.

llvm-svn: 42419
 2007-09-27 23:12:31 +00:00
Dan Gohman 0cc9d1b93b Merge hasDotLoc and hasDotFile into hasDotLocAndDotFile since .loc and .file 
aren't really usable without each other. 

llvm-svn: 42274
 2007-09-24 21:09:53 +00:00
Bill Wendling 74fb0f1a1c Add a bool to indicate if we should set the "indirect encoding" bit in the Dwarf 
information for EH.

llvm-svn: 41852
 2007-09-11 17:20:55 +00:00
Bill Wendling 2b8fc31df9 The personality function on Darwin needs a global stub. We then refer to 
that global stub instead of doing the ".set" thingy we were doing before.

llvm-svn: 41838
 2007-09-11 08:27:17 +00:00
Dan Gohman 3a8e2a8b2f Eliminate some redundant newlines in asm output. 
llvm-svn: 37574
 2007-06-14 15:00:27 +00:00
Anton Korobeynikov 4db0090339 Emit sections/directives in the proper order. This fixes PR1376. Also, 
some small cleanup was made.

llvm-svn: 36780
 2007-05-05 09:04:50 +00:00
Dan Gohman 2675a651b0 Indent the .text, .data, and .bss directives in assembly output, so that 
they are consistent with the other directives.

llvm-svn: 36687
 2007-05-03 18:46:30 +00:00
Anton Korobeynikov b538f67b1a Fix couple of bugs connected with eh info: 
1. Correct output offsets on Linux
2. Fix "style" of personality function. It shouldn't be indirect.

llvm-svn: 36633
 2007-05-01 22:23:12 +00:00
Anton Korobeynikov 39f3cffbe3 Implement protected visibility. This partly implements PR1363. Linker 
should be taught to deal with protected symbols.

llvm-svn: 36565
 2007-04-29 18:35:00 +00:00
Dale Johannesen 0a1069d526 Fix generic getInlineAsmLength 
llvm-svn: 36369
 2007-04-23 20:00:17 +00:00
Lauro Ramos Venancio 2518889872 Implement "general dynamic", "initial exec" and "local exec" TLS models for 
X86 32 bits.

llvm-svn: 36283
 2007-04-20 21:38:10 +00:00
Evan Cheng 58aeb9c444 Add ReadOnlySection directive. 
llvm-svn: 35015
 2007-03-08 01:00:38 +00:00
Anton Korobeynikov 942fda027f Fix DWARF debugging information on x86/Linux and (hopefully) 
Mingw32/Cygwin targets. This fixes PR978

llvm-svn: 35000
 2007-03-07 02:47:57 +00:00
Jim Laskey af76e0e58f Add TAI field for exception table section. 
llvm-svn: 34477
 2007-02-21 22:43:40 +00:00
Jim Laskey c3de9b4b14 Support for non-landing pad exception handling. 
llvm-svn: 33755
 2007-02-01 16:31:34 +00:00
Jim Laskey b4a2f05d1c Landing pad-less eh for PPC. 
llvm-svn: 33622
 2007-01-29 18:51:14 +00:00
Chris Lattner 0ee2d46cfe add new JumpTableSpecialLabelPrefix hook to asmprinter for jumptable emission. 
llvm-svn: 33314
 2007-01-18 01:12:56 +00:00
Chris Lattner 1ceb643f31 add new directive 
llvm-svn: 33302
 2007-01-17 17:42:42 +00:00
Anton Korobeynikov 3f6d52834b * Fix one more bug in PIC codegen: extra load is needed for *all* 
non-statics.
* Introduce new option to output zero-initialized data to .bss section.
This can reduce size of binaries. Enable it by default for ELF &
Cygwin/Mingw targets. Probably, Darwin should be also added.

llvm-svn: 33299
 2007-01-17 10:33:08 +00:00
Bill Wendling e21237e59a Fix for PR1095: 
LLVM would miscompile ASM dialects when compiling for PPC. Added dialects for
the X86 and PPC backends. It defaults to "0", the first variant of a compound
inline asm expression.

llvm-svn: 33246
 2007-01-16 03:42:04 +00:00
Chris Lattner 9f6badbc41 add a new HiddenDirective member for handling visibility. 
llvm-svn: 33197
 2007-01-14 06:27:21 +00:00
Evan Cheng 022030a425 Add weak reference directive. 
llvm-svn: 32091
 2006-12-01 20:47:11 +00:00
Andrew Lenharth ff35b449a0 Add per-target support for asm translation in the cbe 
llvm-svn: 31972
 2006-11-28 19:52:20 +00:00
Reid Spencer b51b5c0b1f Add debug support for X86/ELF targets (Linux). This allows llvm-gcc4 
generated object modules to be debugged with gdb. Hopefully this helps
pre-release debugging.

llvm-svn: 31299
 2006-10-30 22:32:30 +00:00
Reid Spencer e54243f030 Initialize CStringSection member var. 
llvm-svn: 31214
 2006-10-27 16:14:06 +00:00
Chris Lattner 95129a7f22 Expose method and ivars for measuring inline asm length properly. 
llvm-svn: 30934
 2006-10-13 17:50:07 +00:00
Chris Lattner 8cfd10eff3 Don't bother setting JumpTableTextSection, it is about to disappear 
llvm-svn: 30745
 2006-10-05 03:13:59 +00:00
Chris Lattner afe6d7a179 Give TargetAsmInfo a virtual dtor, add a new getSectionForFunction method. 
llvm-svn: 30732
 2006-10-05 00:35:16 +00:00
Chris Lattner 66af390631 Add support for targets that want to do something with the llvm.used list, 
because they have an aggressive linker that does dead code stripping.

llvm-svn: 30604
 2006-09-26 03:38:18 +00:00
Andrew Lenharth 783a4a9d86 Add support for other relocation bases to jump tables, as well as custom asm directives 
llvm-svn: 30593
 2006-09-24 19:45:58 +00:00
Jim Laskey ef94ebb666 Oops - forgot to update banner. 
llvm-svn: 30131
 2006-09-06 19:21:41 +00:00
Jim Laskey 681ecbb3b3 Separate target specifc asm properties from asm printers. 
llvm-svn: 30127
 2006-09-06 18:35:33 +00:00