Chris Lattner
eed05b8042
hoist section name uniquing logic up to the top-level SectionForGlobal
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implementation, eliminating a dupe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76953 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 05:10:25 +00:00
Chris Lattner
57743effb8
reduce indentation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76951 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 05:01:55 +00:00
Chris Lattner
f76280de82
the 'isWeakForLinker' code is common between functions and globals, hoist it
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and simplify some other code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76949 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 04:52:38 +00:00
Chris Lattner
55acc6807f
Replace UniqueSectionForGlobal with getSectionPrefixForUniqueGlobal.
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The later doesn't depend on any crazy LLVM IR stuff, and this
pulls the concatenation of prefix with GV name (the root problem behind
PR4584) out one level.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76948 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 04:49:34 +00:00
Chris Lattner
686177dae7
fix indentation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76945 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 04:11:40 +00:00
Chris Lattner
083a1e0597
make Constant::getRelocationInfo return an enum, as suggested by Duncan.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76938 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 03:27:21 +00:00
Chris Lattner
013e6b6309
Remove SectionKind::Small*. This was only used on mips, and is apparently
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a sad mistake that is regretted. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76935 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 03:11:51 +00:00
Chris Lattner
819c4f365f
remove SectionFlags::Small: it is only used on Xcore, and we'll find
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a better solution for it in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76818 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 23:27:22 +00:00
Duncan Sands
ed4b2dc313
Revert commit 76707, it was breaking the llvm-gcc build
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on linux platforms. The binutils assembler does not
recognize the "s" flag, see for example
http://sourceware.org/binutils/docs/as/Section.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 10:35:05 +00:00
Chris Lattner
f1581564b6
inline the two MergeableConstSection implementations into their
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only caller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76710 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 00:47:11 +00:00
Chris Lattner
828f704c10
set the ELF "small" flag on objects that end up in .rodata.cst4 consistently,
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updating a mips testcase to expect it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 00:41:56 +00:00
Chris Lattner
2804616ba3
don't set the small flag yet.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 00:30:39 +00:00
Chris Lattner
298414ec18
remove the SelectSectionForMachineConst hook, replacing it with
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a new getSectionForMergableConstant hook. This removes one dependence
of TAI on Type, and provides the hook with enough info to make the
right decision based on whether the global has relocations etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 00:28:43 +00:00
Chris Lattner
7cf12c7efd
reimplement Constant::ContainsRelocations as
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Constant::getRelocationInfo(), which has a much simpler
to use API. It still should not be part of libvmcore, but
is better than it was. Also teach it to be smart about
hidden visibility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 00:05:44 +00:00
Chris Lattner
b2fb9ccbb7
simplify code now that it is inlined.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76689 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 23:49:55 +00:00
Chris Lattner
97d2cae44b
Now that RelocBehaviour() is never overloaded, it doesn't need to be
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virtual. Just inline it into its two current call sites in preparation
for simplifying the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76686 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 23:47:11 +00:00
Chris Lattner
7886ae9e3c
inline a trivial method into its only call site and fix indentation of cases
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76654 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 21:29:08 +00:00
Chris Lattner
42b6418cc0
Remove some overridden functions in XCoreTargetAsmInfo that are
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implemented exactly the same way as its ELFTargetAsmInfo subclass
has them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76653 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 21:26:32 +00:00
Bill Wendling
3d10a5a757
Add plumbing for the `linker_private' linkage type. This type is meant for
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"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.
This is plumbing, so we don't have a use of it yet. More to come, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76385 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20 01:03:30 +00:00
Torok Edwin
c23197a26f
llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
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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").
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 16:55:14 +00:00
Torok Edwin
c25e7581b9
assert(0) -> LLVM_UNREACHABLE.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11 20:10:48 +00:00
Duncan Sands
777d2306b3
Rename PaddedSize to AllocSize, in the hope that this
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will make it more obvious what it represents, and stop
it being confused with the StoreSize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71349 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-09 07:06:46 +00:00
Anton Korobeynikov
29519b1de0
Fix thinko: put stuff with both global and local relocations into data.rel{.ro}, not .local
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68036 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-30 17:37:43 +00:00
Anton Korobeynikov
fca82deecb
Do not propagate ELF-specific stuff (data.rel) into other targets. This simplifies code and also ensures correctness.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68032 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-30 15:27:43 +00:00
Anton Korobeynikov
71a7c6cde0
Add data.rel stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68031 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-30 15:27:03 +00:00
Duncan Sands
667d4b8de6
Introduce new linkage types linkonce_odr, weak_odr, common_odr
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66339 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-07 15:45:40 +00:00
Anton Korobeynikov
72bb40229e
Treat [1 x i8] zeroinitializer as a C string, placing such stuff into
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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 :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-27 22:29:24 +00:00
Rafael Espindola
bb46f52027
Add the private linkage.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15 20:18:42 +00:00
Duncan Sands
ceb4d1aecb
Rename getABITypeSize to getTypePaddedSize, as
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suggested by Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62099 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-12 20:38:59 +00:00
Devang Patel
8a84e4402a
squash warnings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-05 17:31:22 +00:00
Dan Gohman
8f092252d3
Refactor various TargetAsmInfo subclasses' TargetMachine members away
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adding a TargetMachine member to the base TargetAsmInfo class instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58624 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-03 18:22:42 +00:00
Duncan Sands
5df3186f59
Rename isWeakForLinker to mayBeOverridden. Use it
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instead of hasWeakLinkage in a bunch of optimization
passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56782 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-29 11:25:42 +00:00
Anton Korobeynikov
00181a33d8
Get rid of ReadOnlySection duplicate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56582 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-24 22:20:27 +00:00
Anton Korobeynikov
dbab2d2272
Cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56578 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-24 22:17:27 +00:00
Anton Korobeynikov
36133dd324
Get rid of duplicate char*/Section* stuff for TLS sections
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56577 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-24 22:17:06 +00:00
Anton Korobeynikov
0b501d157e
Cleanup, no functionality change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56576 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-24 22:16:33 +00:00
Anton Korobeynikov
315690ec2a
Get rid of duplicate char*/Section* DataSection
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56575 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-24 22:16:16 +00:00
Anton Korobeynikov
d7ca416d6c
Get rid of duplicate char*/Section* TextSection
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56574 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-24 22:15:21 +00:00
Anton Korobeynikov
d0c1e29aec
Reduce heap trashing due to std::string construction / concatenation via caching of section flags string representations
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54842 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-16 12:57:07 +00:00
Evan Cheng
42ccc21ce7
Undo most of r54519.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54534 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-08 17:56:50 +00:00
Evan Cheng
711b6dce24
It's not legal to output a GV in a coalesced section if it's used in an ARM PIC relative constantpool.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54519 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-08 06:56:16 +00:00
Anton Korobeynikov
feac94b18d
Print section flags ok on platforms, which use '@' as comment string. Fix test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54460 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07 09:55:06 +00:00
Anton Korobeynikov
1e27da3e6c
Add assertion for easy debugging of missing stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54459 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07 09:54:40 +00:00
Anton Korobeynikov
84e160e265
Add hook for constant pool section selection for darwin.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54449 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07 09:51:02 +00:00
Anton Korobeynikov
93cacf131d
Select section for constant pool entries
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54448 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07 09:50:34 +00:00
Anton Korobeynikov
0980980174
Tie small stuff to non-small by default on ELF platforms
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53919 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-22 17:09:41 +00:00
Anton Korobeynikov
9685506c4f
Use better variable names
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53859 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-21 18:29:23 +00:00
Anton Korobeynikov
d493b043c4
Don't use larger alignment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53857 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-21 18:25:17 +00:00
Anton Korobeynikov
debe34bd8d
Add TargetAsmInfo for all ELF-based targets
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53786 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-19 13:14:11 +00:00