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186 Commits

Author SHA1 Message Date
Bill Wendling
6add893a14 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
0c800cf35e 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
155df8a79e 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
651eeb4be2 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
7367de00cf Reapply 56585:56589 with proper fix for some gcc versions 
llvm-svn: 56621
 2008-09-25 21:00:33 +00:00
Evan Cheng
12a67b5226 Temporarily backing out 56585:56589 to unbreak the build. 
llvm-svn: 56607
 2008-09-25 07:38:08 +00:00
Anton Korobeynikov
9e5cbcc134 Use crazy template-based inheritance instead of virtual one. 
llvm-svn: 56585
 2008-09-24 22:21:39 +00:00
Anton Korobeynikov
b9294473f0 Get rid of ReadOnlySection duplicate 
llvm-svn: 56582
 2008-09-24 22:20:27 +00:00
Anton Korobeynikov
9b9c3a38ad Get rid of now unused {Four,Eight,Sixteen}ByteConstantSection 
llvm-svn: 56580
 2008-09-24 22:18:54 +00:00
Anton Korobeynikov
1b3c67c5cf Get rid of duplicate char*/Section* stuff for TLS sections 
llvm-svn: 56577
 2008-09-24 22:17:06 +00:00
Anton Korobeynikov
dca16f3acf Get rid of duplicate char*/Section* DataSection 
llvm-svn: 56575
 2008-09-24 22:16:16 +00:00
Anton Korobeynikov
83fa257f55 Get rid of duplicate char*/Section* TextSection 
llvm-svn: 56574
 2008-09-24 22:15:21 +00:00
Anton Korobeynikov
c7ac49c632 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
1ed08a58d1 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
d51454bfa6 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
436f708112 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
767865a3d1 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
804e157031 Undo most of r54519. 
llvm-svn: 54534
 2008-08-08 17:56:50 +00:00
Evan Cheng
4708df4776 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
d3009663dd Provide convenient helpers 
llvm-svn: 54451
 2008-08-07 09:51:54 +00:00
Anton Korobeynikov
d37daa2aeb Select section for constant pool entries 
llvm-svn: 54448
 2008-08-07 09:50:34 +00:00
Anton Korobeynikov
af50b3159f Provide default implementation of different small-sections related stuff 
llvm-svn: 53920
 2008-07-22 17:09:59 +00:00
Bruno Cardoso Lopes
96ab649026 Basic support for small sections 
llvm-svn: 53907
 2008-07-22 15:26:53 +00:00
Dan Gohman
8cf62e122f TargetAsmInfo::SectionForGlobal showed up in a profile. Simplify it a little. 
llvm-svn: 53639
 2008-07-15 18:37:51 +00:00
Anton Korobeynikov
93fef00b0f Use only 'subset' of flags 
llvm-svn: 53323
 2008-07-09 13:29:44 +00:00
Anton Korobeynikov
03614f247c First sketch of special section objects 
llvm-svn: 53320
 2008-07-09 13:28:49 +00:00
Anton Korobeynikov
5ad0c235f1 Use isWeakForLinker() hook 
llvm-svn: 53318
 2008-07-09 13:27:59 +00:00
Anton Korobeynikov
df663a8ddf Fix several bugs in named sections handling 
llvm-svn: 53312
 2008-07-09 13:25:46 +00:00
Anton Korobeynikov
933bf0ecc4 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
f08fab0af5 Use 'gnu.linkonce', where needed 
llvm-svn: 53310
 2008-07-09 13:24:55 +00:00
Anton Korobeynikov
3bde8f2e24 Fix thinko 
llvm-svn: 53309
 2008-07-09 13:24:38 +00:00
Anton Korobeynikov
dd347538c8 Provide section selection for X86 ELF targets 
llvm-svn: 53305
 2008-07-09 13:23:08 +00:00
Anton Korobeynikov
f42d75201a Provide general hook for section name calculation 
llvm-svn: 53304
 2008-07-09 13:22:46 +00:00
Anton Korobeynikov
ca271dd426 Properly handle linkonce stuff 
llvm-svn: 53296
 2008-07-09 13:19:38 +00:00
Anton Korobeynikov
782a69505d 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
2b2f0a4b8f Use 'llvm-linkonce' consistently 
llvm-svn: 53294
 2008-07-09 13:18:38 +00:00
Anton Korobeynikov
5bc572ad96 Add default section name resolution routine 
llvm-svn: 53292
 2008-07-09 13:18:02 +00:00
Anton Korobeynikov
552675bb0f Constify 
llvm-svn: 53291
 2008-07-09 13:17:36 +00:00
Anton Korobeynikov
651865851c Add code for default section falgs computation 
llvm-svn: 53290
 2008-07-09 13:16:59 +00:00
Duncan Sands
aac5c915ed 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
27c38cee90 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
9e8c154272 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
c0cd6cd4d4 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
6f4e916c6a 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
c860d9c77c 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
875da2420a Use enumeration for preffered EH dwarf encoding reason 
llvm-svn: 47770
 2008-02-29 22:09:08 +00:00
Lauro Ramos Venancio
a6e28675f3 Initialize TextAlignFillValue. Fix revision 47703. 
llvm-svn: 47732
 2008-02-28 22:14:09 +00:00
Anton Korobeynikov
7bd4b77e30 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
1268083b64 Missed file from previous checkin. 
llvm-svn: 46030
 2008-01-15 23:25:27 +00:00
Dale Johannesen
fdd4b3846f 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
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Gordon Henriksen
3e409a37ac 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
6293438d50 Fix compiler warning. 
llvm-svn: 44261
 2007-11-21 00:45:00 +00:00
Dale Johannesen
8c3541787f 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
50747737a5 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
b642a1ddf8 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
74888e63e7 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
3c6a8b2814 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
74c92798d8 Eliminate some redundant newlines in asm output. 
llvm-svn: 37574
 2007-06-14 15:00:27 +00:00
Anton Korobeynikov
ce48606d7a 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
fd25a9d9a3 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
6e6bfcaf4d 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
3d95e52ea2 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
b51e8d6592 Fix generic getInlineAsmLength 
llvm-svn: 36369
 2007-04-23 20:00:17 +00:00
Lauro Ramos Venancio
bc32d90b46 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
6bf2f3665e Add ReadOnlySection directive. 
llvm-svn: 35015
 2007-03-08 01:00:38 +00:00
Anton Korobeynikov
090c2d50ea 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
d1e09aa74a Add TAI field for exception table section. 
llvm-svn: 34477
 2007-02-21 22:43:40 +00:00
Jim Laskey
52a12383a4 Support for non-landing pad exception handling. 
llvm-svn: 33755
 2007-02-01 16:31:34 +00:00
Jim Laskey
eba0cf04e5 Landing pad-less eh for PPC. 
llvm-svn: 33622
 2007-01-29 18:51:14 +00:00
Chris Lattner
e0c1ba6269 add new JumpTableSpecialLabelPrefix hook to asmprinter for jumptable emission. 
llvm-svn: 33314
 2007-01-18 01:12:56 +00:00
Chris Lattner
1a2c170bc4 add new directive 
llvm-svn: 33302
 2007-01-17 17:42:42 +00:00
Anton Korobeynikov
2509765bef * 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
cfdd717db5 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
a8f6e90cac add a new HiddenDirective member for handling visibility. 
llvm-svn: 33197
 2007-01-14 06:27:21 +00:00
Evan Cheng
c5ad9caeff Add weak reference directive. 
llvm-svn: 32091
 2006-12-01 20:47:11 +00:00
Andrew Lenharth
c51f451af5 Add per-target support for asm translation in the cbe 
llvm-svn: 31972
 2006-11-28 19:52:20 +00:00
Reid Spencer
db06ed9156 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
79e316703d Initialize CStringSection member var. 
llvm-svn: 31214
 2006-10-27 16:14:06 +00:00
Chris Lattner
63ec35db20 Expose method and ivars for measuring inline asm length properly. 
llvm-svn: 30934
 2006-10-13 17:50:07 +00:00
Chris Lattner
08da1a510d Don't bother setting JumpTableTextSection, it is about to disappear 
llvm-svn: 30745
 2006-10-05 03:13:59 +00:00
Chris Lattner
6ba6d0e937 Give TargetAsmInfo a virtual dtor, add a new getSectionForFunction method. 
llvm-svn: 30732
 2006-10-05 00:35:16 +00:00
Chris Lattner
167aa73273 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
58f5a24f0c 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
8e922904ce Oops - forgot to update banner. 
llvm-svn: 30131
 2006-09-06 19:21:41 +00:00
Jim Laskey
b3cfa98236 Separate target specifc asm properties from asm printers. 
llvm-svn: 30127
 2006-09-06 18:35:33 +00:00