0c317a99c4
Revert 76177 for now. It's messing up ARM asm printing. Also this significant debate about its efficiency.
...
llvm-svn: 76279
2009-07-18 01:43:53 +00:00
e79b2bc088
Untangle a snarl that I discovered when updating the mangler,
...
starting in getCurrentFunctionEHName. Among other problems,
we would try to privative a "foo.eh" label, but end up emitting
the label as _Lfoo.eh instead of L_foo.eh on darwin. This is really
bad, and the linker has always tolerated these labels existing.
For now, just emit them as _foo.eh.
This patch also fixes problems with ".eh" labels on unnamed
functions and eliminates two strangely defined TargetAsmInfo
hooks.
llvm-svn: 76231
2009-07-17 20:46:40 +00:00
33d1e7db01
Add logic to align instruction operands to columns for pretty-printing.
...
No target uses this currently. This patch only adds the mechanism so
that local installations can choose to enable this.
llvm-svn: 76177
2009-07-17 14:24:46 +00:00
cf5b0f4155
Remove StringConstantPrefix now that the only user
...
(llvm-gcc) has gone.
llvm-svn: 75781
2009-07-15 12:39:48 +00:00
fbcc663cbf
llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
...
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").
llvm-svn: 75640
2009-07-14 16:55:14 +00:00
e4dcecd006
As Chris pointed out, this doesn't actually need an LLVMContext to operate.
...
llvm-svn: 75508
2009-07-13 21:27:19 +00:00
de54478bf0
Add infrastructure to allow post instruction printing action triggers.
...
We'll eventually use this to print comments in asm files and do other
fun things.
This adds interfaces to the AsmPrinter and changes TableGen to invoke
the postInstructionAction when appropriate. It also add parameters to
TargetAsmInfo to control comment layout.
llvm-svn: 75490
2009-07-13 20:25:48 +00:00
53a52215b5
Begin the painful process of tearing apart the rat'ss nest that is Constants.cpp and ConstantFold.cpp.
...
This involves temporarily hard wiring some parts to use the global context. This isn't ideal, but it's
the only way I could figure out to make this process vaguely incremental.
llvm-svn: 75445
2009-07-13 04:09:18 +00:00
56d0659726
assert(0) -> LLVM_UNREACHABLE.
...
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.
llvm-svn: 75379
2009-07-11 20:10:48 +00:00
8284b66264
merge the common darwin settings from the X86/PPC/ARM targets
...
into DarwinTargetAsmInfo.cpp. The remaining differences should
be evaluated. It seems strange that x86/arm has .zerofill but ppc
doesn't, etc.
llvm-svn: 73742
2009-06-19 00:08:39 +00:00
b84764516d
move mangler quote handling from asm printers to TargetAsmInfo.
...
llvm-svn: 73738
2009-06-18 23:41:35 +00:00
09081b25a5
simplify macro debug info directive handling.
...
llvm-svn: 73736
2009-06-18 23:31:37 +00:00
80be3511ed
Reapply 68847.
...
Now debug_inlined section is covered by TAI->doesDwarfUsesInlineInfoSection(), which is false by default.
llvm-svn: 68964
2009-04-13 17:02:03 +00:00
825236b116
Revert r68847. It breaks the build on non-Darwin targets, with this message
...
from the assembler:
Error: unknown pseudo-op: `.debug_inlined'
llvm-svn: 68863
2009-04-11 15:57:04 +00:00
790e60999e
Keep track of inlined functions and their locations. This information is collected when nested llvm.dbg.func.start intrinsics are seen. (Right now, inliner removes nested llvm.dbg.func.start intrinisics during inlining.)
...
Create debug_inlined dwarf section using these information. This info is used by gdb, at least on Darwin, to enable better experience debugging inlined functions. See DwarfWriter.cpp for more information on structure of debug_inlined section.
llvm-svn: 68847
2009-04-11 00:16:47 +00:00
7c5f3c40ca
Do not propagate ELF-specific stuff (data.rel) into other targets. This simplifies code and also ensures correctness.
...
llvm-svn: 68032
2009-03-30 15:27:43 +00:00
c247fd396c
Add data.rel stuff
...
llvm-svn: 68031
2009-03-30 15:27:03 +00:00
088ebede53
Honour relocation behaviour stuff for ro objects
...
llvm-svn: 68005
2009-03-29 17:13:49 +00:00
12da8ce3d2
Introduce new linkage types linkonce_odr, weak_odr, common_odr
...
and extern_weak_odr. These are the same as the non-odr versions,
except that they indicate that the global will only be overridden
by an *equivalent* global. In C, a function with weak linkage can
be overridden by a function which behaves completely differently.
This means that IP passes have to skip weak functions, since any
deductions made from the function definition might be wrong, since
the definition could be replaced by something completely different
at link time. This is not allowed in C++, thanks to the ODR
(One-Definition-Rule): if a function is replaced by another at
link-time, then the new function must be the same as the original
function. If a language knows that a function or other global can
only be overridden by an equivalent global, it can give it the
weak_odr linkage type, and the optimizers will understand that it
is alright to make deductions based on the function body. The
code generators on the other hand map weak and weak_odr linkage
to the same thing.
llvm-svn: 66339
2009-03-07 15:45:40 +00:00
70d4c08cfe
Treat [1 x i8] zeroinitializer as a C string, placing such stuff into
...
mergeable string section. I don't see any bad impact of such decision
(rather then placing it into mergeable const section, as it was before),
but at least Darwin linker won't complain anymore.
The problem in LLVM is that we don't have special type for string constants
(like gcc does). Even more, we have two separate types: ConstatArray for non-null
strings and ConstantAggregateZero for null stuff.... It's a bit weird :)
llvm-svn: 63142
2009-01-27 22:29:24 +00:00
3789a13c30
Make the Dwarf macro information section optional; CellSPU's assembler
...
doesn't support it. The default is set to 'true', so this should not
impact any other target backends.
llvm-svn: 63058
2009-01-26 22:32:51 +00:00
f9b5ba7bcb
Revert r61415 and r61484. Duncan was correct that these weren't needed.
...
llvm-svn: 61765
2009-01-05 22:53:45 +00:00
56a8bb670f
squash warnings.
...
llvm-svn: 61707
2009-01-05 17:31:22 +00:00
03f2af79b8
Linux wants the FDE initial location and address range to be forced to 32-bit.
...
Darwin doesn't. Make this optional for platforms.
llvm-svn: 61484
2008-12-29 22:12:11 +00:00
d6bd7e9372
Darwin likes for the EH frame to be non-local.
...
llvm-svn: 61420
2008-12-24 08:05:17 +00:00
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
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
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
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
87001fd6fd
Reapply 56585:56589 with proper fix for some gcc versions
...
llvm-svn: 56621
2008-09-25 21:00:33 +00:00
84301390ae
Temporarily backing out 56585:56589 to unbreak the build.
...
llvm-svn: 56607
2008-09-25 07:38:08 +00:00
77aa975bdd
Use crazy template-based inheritance instead of virtual one.
...
llvm-svn: 56585
2008-09-24 22:21:39 +00:00
8e7b93938d
Get rid of ReadOnlySection duplicate
...
llvm-svn: 56582
2008-09-24 22:20:27 +00:00
5906234c1d
Get rid of now unused {Four,Eight,Sixteen}ByteConstantSection
...
llvm-svn: 56580
2008-09-24 22:18:54 +00:00
22db30548d
Get rid of duplicate char*/Section* stuff for TLS sections
...
llvm-svn: 56577
2008-09-24 22:17:06 +00:00
7497762606
Get rid of duplicate char*/Section* DataSection
...
llvm-svn: 56575
2008-09-24 22:16:16 +00:00
f8dc8aac3c
Get rid of duplicate char*/Section* TextSection
...
llvm-svn: 56574
2008-09-24 22:15:21 +00:00
076e905b94
Move actual section printing stuff to AsmPrinter from TAI reducing heap traffic.
...
llvm-svn: 56573
2008-09-24 22:14:23 +00:00
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
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
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
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
df8c7faf60
Undo most of r54519.
...
llvm-svn: 54534
2008-08-08 17:56:50 +00:00
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
8ab2f49536
Provide convenient helpers
...
llvm-svn: 54451
2008-08-07 09:51:54 +00:00
ef643a4850
Select section for constant pool entries
...
llvm-svn: 54448
2008-08-07 09:50:34 +00:00
4fdeb9b2d3
Provide default implementation of different small-sections related stuff
...
llvm-svn: 53920
2008-07-22 17:09:59 +00:00
9cfd2f8e57
Basic support for small sections
...
llvm-svn: 53907
2008-07-22 15:26:53 +00:00
efa4160fcc
TargetAsmInfo::SectionForGlobal showed up in a profile. Simplify it a little.
...
llvm-svn: 53639
2008-07-15 18:37:51 +00:00
56827c1b60
Use only 'subset' of flags
...
llvm-svn: 53323
2008-07-09 13:29:44 +00:00
daee281590
First sketch of special section objects
...
llvm-svn: 53320
2008-07-09 13:28:49 +00:00
577c45dd74
Use isWeakForLinker() hook
...
llvm-svn: 53318
2008-07-09 13:27:59 +00:00
13b9a22fb0
Fix several bugs in named sections handling
...
llvm-svn: 53312
2008-07-09 13:25:46 +00:00
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
d789b7c196
Use 'gnu.linkonce', where needed
...
llvm-svn: 53310
2008-07-09 13:24:55 +00:00
7504c283f2
Fix thinko
...
llvm-svn: 53309
2008-07-09 13:24:38 +00:00
4c37c3ad5b
Provide section selection for X86 ELF targets
...
llvm-svn: 53305
2008-07-09 13:23:08 +00:00
9d6939b5fc
Provide general hook for section name calculation
...
llvm-svn: 53304
2008-07-09 13:22:46 +00:00
ab778022d5
Properly handle linkonce stuff
...
llvm-svn: 53296
2008-07-09 13:19:38 +00:00
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
3ee57868a5
Use 'llvm-linkonce' consistently
...
llvm-svn: 53294
2008-07-09 13:18:38 +00:00
21539c6d1e
Add default section name resolution routine
...
llvm-svn: 53292
2008-07-09 13:18:02 +00:00
aab504fb19
Constify
...
llvm-svn: 53291
2008-07-09 13:17:36 +00:00
9e4ab5023a
Add code for default section falgs computation
...
llvm-svn: 53290
2008-07-09 13:16:59 +00:00
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
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
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
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
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
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
0e8b146152
Use enumeration for preffered EH dwarf encoding reason
...
llvm-svn: 47770
2008-02-29 22:09:08 +00:00
714eeb2d55
Initialize TextAlignFillValue. Fix revision 47703.
...
llvm-svn: 47732
2008-02-28 22:14:09 +00:00
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
00dfb551cc
Missed file from previous checkin.
...
llvm-svn: 46030
2008-01-15 23:25:27 +00:00
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
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
...
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
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
e70850cf7b
Fix compiler warning.
...
llvm-svn: 44261
2007-11-21 00:45:00 +00:00
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
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
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
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
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
3a8e2a8b2f
Eliminate some redundant newlines in asm output.
...
llvm-svn: 37574
2007-06-14 15:00:27 +00:00
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
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
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
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
0a1069d526
Fix generic getInlineAsmLength
...
llvm-svn: 36369
2007-04-23 20:00:17 +00:00
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
58aeb9c444
Add ReadOnlySection directive.
...
llvm-svn: 35015
2007-03-08 01:00:38 +00:00
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
af76e0e58f
Add TAI field for exception table section.
...
llvm-svn: 34477
2007-02-21 22:43:40 +00:00
c3de9b4b14
Support for non-landing pad exception handling.
...
llvm-svn: 33755
2007-02-01 16:31:34 +00:00
b4a2f05d1c
Landing pad-less eh for PPC.
...
llvm-svn: 33622
2007-01-29 18:51:14 +00:00
0ee2d46cfe
add new JumpTableSpecialLabelPrefix hook to asmprinter for jumptable emission.
...
llvm-svn: 33314
2007-01-18 01:12:56 +00:00
1ceb643f31
add new directive
...
llvm-svn: 33302
2007-01-17 17:42:42 +00:00
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
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
9f6badbc41
add a new HiddenDirective member for handling visibility.
...
llvm-svn: 33197
2007-01-14 06:27:21 +00:00
Evan Cheng