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9107 Commits

Author SHA1 Message Date
Chris Lattner
06d8ca1f56 convert ctors/dtors section to be in TLOF instead of 
TAI.

llvm-svn: 77842
 2009-08-02 00:34:36 +00:00
Daniel Dunbar
8a0b05b396 Change MCOperand to use Create style instead of Make style for constructing 
operands.

llvm-svn: 77837
 2009-08-02 00:09:22 +00:00
Chris Lattner
8cb3189438 make SectionKind::Kind completely private now. 
llvm-svn: 77836
 2009-08-02 00:04:12 +00:00
Chris Lattner
506b49ffa0 Make SectionKind::get() private. 
llvm-svn: 77835
 2009-08-02 00:02:44 +00:00
Chris Lattner
05334af883 (re)introduce new simpler apis for creation sectionkinds. 
llvm-svn: 77834
 2009-08-01 23:57:16 +00:00
Chris Lattner
81229d1bed Remove "JumpTableDataSection" from TAI, instead, have AsmPrinter 
compute it based on what it knows.  As part of this, rename getSectionForMergeableConstant
to getSectionForConstant because it works for non-mergable constants also.

The only functionality change from this is that Xcore will start dropping
its jump tables into readonly section instead of data section in -static mode.
This should be fine as the linker resolves the relocations.  If this is a
problem, let me know and we'll come up with another solution.

llvm-svn: 77833
 2009-08-01 23:46:12 +00:00
Chris Lattner
4cbb1c0c3f REmove dead fields of TAI. 
llvm-svn: 77820
 2009-08-01 22:40:22 +00:00
Chris Lattner
0106f7031b fix a fixme by sinking various target-specific directives down into 
the appropriate subclasses.

llvm-svn: 77815
 2009-08-01 21:56:13 +00:00
Chris Lattner
2a9d51b703 it turns out that isWeak() was basically dead anyway. Kill off SectionInfo :-/ 
llvm-svn: 77812
 2009-08-01 21:46:23 +00:00
Chris Lattner
2f8fcad7cf fix a layering violation by moving SectionKind out to its own header. 
llvm-svn: 77808
 2009-08-01 21:30:49 +00:00
Dan Gohman
3b05aaef0b Minor whitespace tidiness. 
llvm-svn: 77807
 2009-08-01 21:25:46 +00:00
Chris Lattner
45a786d25d with the previous refactoring, fixme fixed! 
llvm-svn: 77805
 2009-08-01 21:21:43 +00:00
Chris Lattner
79e9585304 Change SectionKind to be a property that is true of a *section*, it 
should have no state that is specific to particular globals in the
section.  In this case, it means the removal of the "isWeak" and
"ExplicitSection" bits.  MCSection uses the new form of SectionKind.

To handle isWeak, I introduced a new SectionInfo class, which is
SectionKind + isWeak, and it is used by the part of the code generator
that does classification of a specific global.

The ExplicitSection disappears.  It is moved onto MCSection as a new
"IsDirective" bit.  Since the Name of a section is either a section
or directive, it makes sense to keep this bit in MCSection.  Ultimately
the creator of MCSection should canonicalize (e.g.) .text to whatever
the actual section is.

llvm-svn: 77803
 2009-08-01 21:11:14 +00:00
Dan Gohman
c4369ff556 Use the default copy ctor and copy-assignment operators. 
llvm-svn: 77793
 2009-08-01 19:11:31 +00:00
Chris Lattner
04ae6629fe All MCSections are now required to have a SectionKind. 
llvm-svn: 77787
 2009-08-01 18:25:49 +00:00
Dan Gohman
74b8f449e7 Give MachineFunctionAnalysis a destructor so it can verify that 
that it released its allocated memory.

llvm-svn: 77775
 2009-08-01 04:19:43 +00:00
Ted Kremenek
b29794d828 Make default ctor for ImmutableSet::iterator public. 
llvm-svn: 77762
 2009-08-01 01:28:23 +00:00
Owen Anderson
5370346117 Privatize all but one of the remaining constant tables. 
llvm-svn: 77748
 2009-07-31 22:45:43 +00:00
Mikhail Glushenkov
89b10452e1 Add a warning. 
llvm-svn: 77746
 2009-07-31 22:24:20 +00:00
David Greene
543296ed84 Simplify operand padding by keying off tabs in the asm stream. If 
padding is disabled, tabs get replaced by spaces except in the case of
the first operand, where the tab is output to line up the operands after
the mnemonics.

Add some better comments and eliminate redundant code.

Fix some testcases to not assume tabs.

llvm-svn: 77740
 2009-07-31 21:57:10 +00:00
Daniel Dunbar
e150b07b71 llvm-mc: Support quoted identifiers. 
- Uses MCAsmToken::getIdentifier which returns the (sub)string representing the
   meaningfull contents a string or identifier token.

 - Directives aren't done yet.

llvm-svn: 77739
 2009-07-31 21:55:09 +00:00
Chris Lattner
882b1208e1 PreferredEHDataFormat is always call with data and global, but this whole 
thing is #if0'd out anyway.  Just simplify the code by reducing the interface.
Not deleting this is essential for Bill's continuing happiness.

llvm-svn: 77736
 2009-07-31 21:39:55 +00:00
Owen Anderson
034ab4f8b1 Move the metadata constructors back to 2.5 syntax. 
llvm-svn: 77733
 2009-07-31 21:35:40 +00:00
Chris Lattner
48bdeff884 move emitUsedDirectiveFor to TargetLoweringObjectFile and rename it to 
indicate that it is a predicate, not an emitter.  This eliminates TAI
dependencies on Mangler and GlobalValue.

llvm-svn: 77726
 2009-07-31 20:52:39 +00:00
Owen Anderson
1dc40e205b Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are 
metadata related, which I'm waiting on to avoid conflicting with Devang.

llvm-svn: 77721
 2009-07-31 20:28:14 +00:00
Dan Gohman
481c23300a Fix a typo in a comment. 
llvm-svn: 77715
 2009-07-31 19:26:54 +00:00
Dan Gohman
44beb18a99 Delete spurious semicolons. 
llvm-svn: 77712
 2009-07-31 18:59:29 +00:00
Benjamin Kramer
8c6602e3ea Fix build. 
llvm-svn: 77711
 2009-07-31 18:58:46 +00:00
Chris Lattner
75b7692e66 switch off of 'Section' onto MCSection. We're not properly using 
MCSection subclasses yet, but this is a step in the right direction.

llvm-svn: 77708
 2009-07-31 18:48:30 +00:00
Dan Gohman
c4f0d838a9 Remove Annotation.h, which is no longer used in the LLVM tree. 
llvm-svn: 77706
 2009-07-31 18:36:25 +00:00
Dan Gohman
dcc00a2e5c MachineFunction no longer needs Annotation. 
llvm-svn: 77704
 2009-07-31 18:35:51 +00:00
Dan Gohman
173cfdc02f Fix some problems with ASTCallbackVH in its use as a DenseMap key. 
llvm-svn: 77696
 2009-07-31 18:21:48 +00:00
Dan Gohman
0f6a4a4daa Teach ValueHandleBase to treat DenseMap's special Empty and Tombstone 
values the same way it treats null pointers. This is needed to allow
CallbackVH to be used as a key in a DenseMap.

llvm-svn: 77695
 2009-07-31 18:20:18 +00:00
Devang Patel
34cec19943 Process DbgDeclareInst. 
llvm-svn: 77694
 2009-07-31 18:18:52 +00:00
Dan Gohman
3d7cadb0c2 Split DenseMapInfo into a separate header file, so that it can be 
included separately.

llvm-svn: 77693
 2009-07-31 18:18:19 +00:00
Dan Gohman
f28b3bb262 Reapply r77654 with a fix: MachineFunctionPass's getAnalysisUsage 
shouldn't do AU.setPreservesCFG(), because even though CodeGen passes
don't modify the LLVM IR CFG, they may modify the MachineFunction CFG,
and passes like MachineLoop are registered with isCFGOnly set to true.

llvm-svn: 77691
 2009-07-31 18:16:33 +00:00
Chris Lattner
c156a00641 refactor section construction in TLOF to be through an explicit 
initialize method, which can be called when an MCContext is available.

llvm-svn: 77687
 2009-07-31 17:42:42 +00:00
Owen Anderson
d0e6352c97 Move getTrue() and getFalse() to 2.5-like APIs. 
llvm-svn: 77685
 2009-07-31 17:39:07 +00:00
Chris Lattner
a682cb61e7 split MCSection stuff out to its own .cpp file, add a new 
MCSectionWithKind subclass of MCSection.

llvm-svn: 77684
 2009-07-31 17:02:00 +00:00
Chris Lattner
fe45761455 move the sectionkind and section classes to TargetLoweringObjectFile.h 
llvm-svn: 77681
 2009-07-31 16:47:16 +00:00
Chris Lattner
610dfdece7 create sections with MCSection::Create instead of Context->getOrCreateSection. 
This is needed to allow polymorphic sections.

llvm-svn: 77680
 2009-07-31 16:43:49 +00:00
Daniel Dunbar
60d71a790c Revert r77654, it appears to be causing llvm-gcc bootstrap failures, and many 
failures when building assorted projects with clang.

--- Reverse-merging r77654 into '.':
U    include/llvm/CodeGen/Passes.h
U    include/llvm/CodeGen/MachineFunctionPass.h
U    include/llvm/CodeGen/MachineFunction.h
U    include/llvm/CodeGen/LazyLiveness.h
U    include/llvm/CodeGen/SelectionDAGISel.h
D    include/llvm/CodeGen/MachineFunctionAnalysis.h
U    include/llvm/Function.h
U    lib/Target/CellSPU/SPUISelDAGToDAG.cpp
U    lib/Target/PowerPC/PPCISelDAGToDAG.cpp
U    lib/CodeGen/LLVMTargetMachine.cpp
U    lib/CodeGen/MachineVerifier.cpp
U    lib/CodeGen/MachineFunction.cpp
U    lib/CodeGen/PrologEpilogInserter.cpp
U    lib/CodeGen/MachineLoopInfo.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
D    lib/CodeGen/MachineFunctionAnalysis.cpp
D    lib/CodeGen/MachineFunctionPass.cpp
U    lib/CodeGen/LiveVariables.cpp

llvm-svn: 77661
 2009-07-31 03:02:41 +00:00
Dan Gohman
645f1122c0 Manage MachineFunctions with an analysis Pass instead of the Annotable 
mechanism. To support this, make MachineFunctionPass a little more
complete.

llvm-svn: 77654
 2009-07-31 01:52:50 +00:00
Devang Patel
343bc16228 Add getOrInsertNamedMetadata(). 
llvm-svn: 77646
 2009-07-30 23:59:04 +00:00
Devang Patel
5fb5ef77e3 Add addElement(). 
llvm-svn: 77645
 2009-07-30 23:57:23 +00:00
Lang Hames
bf6e087067 Removed the BigBlock register allocator. 
llvm-svn: 77640
 2009-07-30 23:18:43 +00:00
Owen Anderson
93ccaf5c60 Move more code back to 2.5 APIs. 
llvm-svn: 77635
 2009-07-30 23:03:37 +00:00
Daniel Dunbar
298e11de31 Twine: Directly support int, long, and long long types. 
- This should resolve Cygwin gcc ambiguities.

llvm-svn: 77624
 2009-07-30 21:15:14 +00:00
Dan Gohman
30dfed41b8 Use CallbackVH in AliasSetTracker to avoid getting stuck with 
dangling Value*s.

llvm-svn: 77623
 2009-07-30 20:21:41 +00:00
Devang Patel
659a82fe31 Fix MetadataBase::classof(). 
Thanks Benjamin Kramer!

llvm-svn: 77618
 2009-07-30 18:45:09 +00:00
Daniel Dunbar
edd0313a36 Twine: Use raw_ostream::write_hex, remove unused itohexstr method. 
llvm-svn: 77617
 2009-07-30 18:30:19 +00:00
Devang Patel
ab56b759af s/DebugInfoEnumerator/DebugInfoFinder/g 
llvm-svn: 77615
 2009-07-30 18:25:15 +00:00
Daniel Dunbar
79e9ed1d26 Add raw_ostream::write_hex 
llvm-svn: 77614
 2009-07-30 18:21:23 +00:00
Daniel Dunbar
3db25114f0 Remove itohexstr, which only had one user. 
llvm-svn: 77613
 2009-07-30 18:18:54 +00:00
Daniel Dunbar
81f704c26a Twines: Don't allow implicit conversion from integers, this is too tricky. 
llvm-svn: 77605
 2009-07-30 17:37:43 +00:00
Devang Patel
751490b934 walk DbgRegionStartInst and DbgRegionEndInst 
llvm-svn: 77604
 2009-07-30 17:30:23 +00:00
Devang Patel
cef1863706 Fix comment. 
llvm-svn: 77603
 2009-07-30 17:25:33 +00:00
Sanjiv Gupta
b2aad805e0 Allow targets to define libcall names for mem(cpy,set,move) intrinsics, rather than hardcoding them in DAG lowering. 
llvm-svn: 77586
 2009-07-30 09:12:56 +00:00
Evan Cheng
c6c5c4b074 I've changed the semantics of MERGE_VALUES a bit. It's now allowed to live until scheduling. It's deleted when the scheduler translate DAG nodes to machine instructions. 
This is currently used by X86 to handle atomic_load_add when the output of the node is not used. I believe there is a better solution. But I find MERGE_VALUES useful for selecting multi-output node when the dead output can be selected as a IMPLICIT_DEF.

llvm-svn: 77583
 2009-07-30 08:44:08 +00:00
Daniel Dunbar
4d8b1776b4 Twine: Provide [u]int{32,64} conversions via implicit constructors instead of 
explicitly.

llvm-svn: 77576
 2009-07-30 03:47:15 +00:00
Devang Patel
efd06c46c7 Check null NameMDNode elements. 
llvm-svn: 77559
 2009-07-30 01:02:04 +00:00
Devang Patel
d5b7c64109 Read and write NamedMDNode. 
llvm-svn: 77517
 2009-07-29 22:34:41 +00:00
Owen Anderson
881d928f9b Move types back to the 2.5 API. 
llvm-svn: 77516
 2009-07-29 22:17:13 +00:00
Devang Patel
c8dfc60e5e There is no need to keep name ref in NamedMDNode. 
llvm-svn: 77511
 2009-07-29 21:58:56 +00:00
Chris Lattner
613f031b68 inline the global 'getInstrOperandRegClass' function into its callers 
now that TargetOperandInfo does the heavy lifting.

llvm-svn: 77508
 2009-07-29 21:36:49 +00:00
Chris Lattner
6c284cc8cd 1. Introduce a new TargetOperandInfo::getRegClass() helper method 
and convert code to using it, instead of having lots of things
   poke the isLookupPtrRegClass() method directly.

2. Make PointerLikeRegClass contain a 'kind' int, and store it in
   the existing regclass field of TargetOperandInfo when the
   isLookupPtrRegClass() predicate is set.  Make getRegClass pass
   this into TargetRegisterInfo::getPointerRegClass(), allowing
   targets to have multiple ptr_rc things.

llvm-svn: 77504
 2009-07-29 21:10:12 +00:00
Chris Lattner
adc9ad97f7 make ptr_rc derive from a new PointerLikeRegClass tblgen class. 
llvm-svn: 77503
 2009-07-29 20:43:05 +00:00
Chris Lattner
18af1b233a Give getPointerRegClass() a "kind" value so that targets can 
support multiple different pointer register classes.

llvm-svn: 77501
 2009-07-29 20:31:52 +00:00
Owen Anderson
0ce2151b36 Move ConstantExpr to 2.5 API. 
llvm-svn: 77494
 2009-07-29 18:55:55 +00:00
Douglas Gregor
7bc7d66441 Fix a typo, and all of its copies 
llvm-svn: 77489
 2009-07-29 18:27:22 +00:00
Douglas Gregor
9072f2cd18 Implement PointerUnion4. 
llvm-svn: 77487
 2009-07-29 18:19:47 +00:00
Devang Patel
6bc0c66630 Keep track of named mdnodes in a Module using an ilist. 
llvm-svn: 77476
 2009-07-29 17:16:17 +00:00
Daniel Dunbar
8f43b0796e Add missing include. 
llvm-svn: 77470
 2009-07-29 16:45:40 +00:00
Bob Wilson
355e0b70e0 Change Neon VLDn intrinsics to return multiple values instead of really 
wide vectors.  Likewise, change VSTn intrinsics to take separate arguments
for each vector in a multi-vector struct.  Adjust tests accordingly.

llvm-svn: 77468
 2009-07-29 16:39:22 +00:00
David Greene
04545750d9 Re-apply previous changes and improve column padding performance some more. 
llvm-svn: 77461
 2009-07-29 16:08:27 +00:00
Devang Patel
9f33cb6583 Fix comment. 
llvm-svn: 77457
 2009-07-29 15:52:49 +00:00
Devang Patel
52511c6064 trim include list. 
llvm-svn: 77455
 2009-07-29 15:24:54 +00:00
Benjamin Kramer
cec5b84b92 MSVC build fix. Patch by Olaf Krzikalla! 
llvm-svn: 77450
 2009-07-29 11:21:25 +00:00
Daniel Dunbar
d13fcdaae5 Twines: Support numeric conversion directly (uitostr, etc). 
- Provides static constructors for doing number to string conversions without
   using temporaries.

 - There are several ways to do this, I think given the Twine constraints this
   is the simplest one.

 - One FIXME for fast number -> hex conversion.

 - Added another comment on one last major bit of perf work Twines need, which
   is to make raw_svector_ostream more efficient.

llvm-svn: 77445
 2009-07-29 07:08:44 +00:00
Andreas Bolka
eb2d2f79b8 Skeleton for pairwise subscript testing. 
llvm-svn: 77437
 2009-07-29 05:35:53 +00:00
Chris Lattner
5c3e1e0d0c pass the mangler down into the various SectionForGlobal methods. 
No functionality change.

llvm-svn: 77432
 2009-07-29 05:09:30 +00:00
Daniel Dunbar
02fa03ef37 Revert r77397, it causes significant regressions in llc performance. 
llvm-svn: 77425
 2009-07-29 03:04:22 +00:00
Devang Patel
8ed4662148 Add NamedMDNode. 
llvm-svn: 77409
 2009-07-29 00:33:07 +00:00
Eric Christopher
c7b97d1f03 Add support for gcc __builtin_ia32_ptest{z,c,nzc} intrinsics. Lower 
to ptest instruction plus setcc. Revamp ptest instruction. Add test.

llvm-svn: 77407
 2009-07-29 00:28:05 +00:00
Daniel Dunbar
a364079155 Match X86 register names to number. 
llvm-svn: 77404
 2009-07-29 00:02:19 +00:00
David Greene
6c6f368805 Improve performance of PadToColumn by eliminating flushes. 
llvm-svn: 77397
 2009-07-28 23:26:34 +00:00
David Greene
6098de1019 Add some protected interfaces to allow subclass access to the buffer. 
llvm-svn: 77395
 2009-07-28 23:24:58 +00:00
Daniel Dunbar
4ed0e9b76c Move X86 instruction parsing into X86/AsmParser. 
llvm-svn: 77384
 2009-07-28 22:40:46 +00:00
Devang Patel
a5ade84704 Clarify getName() comment. 
llvm-svn: 77383
 2009-07-28 22:30:52 +00:00
Daniel Dunbar
ec1ea2e240 Make expression parsing and error/warning reporting available through the 
generic MCAsmParser interface.

llvm-svn: 77381
 2009-07-28 22:22:31 +00:00
Devang Patel
b784b514a3 Remove unused method. 
llvm-svn: 77378
 2009-07-28 22:04:55 +00:00
Bill Wendling
3a7a0da82d Remove unused parameter name. 
llvm-svn: 77371
 2009-07-28 21:50:32 +00:00
Devang Patel
cb23671431 Rename MDNode.h header. It defines MDnode and other metadata classes. 
New name is Metadata.h.

llvm-svn: 77370
 2009-07-28 21:49:47 +00:00
Owen Anderson
390e9778d4 Return ConstantVector to 2.5 API. 
llvm-svn: 77366
 2009-07-28 21:19:26 +00:00
Daniel Dunbar
d0d6b26e87 Provide generic MCAsmParser when constructing target specific parsers. 
llvm-svn: 77362
 2009-07-28 20:47:52 +00:00
Devang Patel
5aba07663b Add DebugInfoEnumerator to collect debug info. 
llvm-svn: 77360
 2009-07-28 19:55:13 +00:00
Andreas Bolka
415bdb47a8 Simplify LDA-internal interface. 
llvm-svn: 77359
 2009-07-28 19:50:13 +00:00
Owen Anderson
aa8c94b051 Change ConstantArray to 2.5 API. 
llvm-svn: 77347
 2009-07-28 18:32:17 +00:00
Daniel Dunbar
6e2f7db6b6 Expose Tokens to target specific assembly parsers. 
llvm-svn: 77337
 2009-07-28 17:58:44 +00:00
Chris Lattner
c74586940a the apple "ld_classic" linker doesn't support .literal16 in 32-bit 
mode, and "ld64" (the default linker) falls back to it in -static
mode.

llvm-svn: 77334
 2009-07-28 17:50:28 +00:00
Stefanus Du Toit
591ef9fa8c Include cmath/math.h in DataTypes.h regardless of whether MSVC is being used. 
Fixes MSVC build of LiveInterval.cpp.

Patch by Nicolas Capens.

llvm-svn: 77317
 2009-07-28 13:41:07 +00:00
Chris Lattner
55461787cc Rip all of the global variable lowering logic out of TargetAsmInfo. Since 
it is highly specific to the object file that will be generated in the end,
this introduces a new TargetLoweringObjectFile interface that is implemented
for each of ELF/MachO/COFF/Alpha/PIC16 and XCore.

Though still is still a brutal and ugly refactoring, this is a major step
towards goodness.

This patch also:
1. fixes a bunch of dangling pointer problems in the PIC16 backend.
2. disables the TargetLowering copy ctor which PIC16 was accidentally using.
3. gets us closer to xcore having its own crazy target section flags and
   pic16 not having to shadow sections with its own objects.
4. fixes wierdness where ELF targets would set CStringSection but not
   CStringSection_.  Factor the code better.
5. fixes some bugs in string lowering on ELF targets.

llvm-svn: 77294
 2009-07-28 03:13:23 +00:00
Daniel Dunbar
3edfc4bb16 llvm-mc: Implement .abort fully in the front end 
llvm-svn: 77272
 2009-07-27 23:20:52 +00:00
Daniel Dunbar
67ac64c7b1 Add a comment on Value explaining the current getName() behavior. 
llvm-svn: 77269
 2009-07-27 22:39:14 +00:00
Owen Anderson
d729f993b8 Move ConstantStruct back to 2.5 API. 
llvm-svn: 77266
 2009-07-27 22:29:26 +00:00
Dan Gohman
490eb36e1d Add a new keyword 'inbounds' for use with getelementptr. See the 
LangRef.html changes for details.

llvm-svn: 77259
 2009-07-27 21:53:46 +00:00
Daniel Dunbar
5f73e9d3f8 llvm-mc: Move AsmLexer::getCurStrVal to StringRef based API. 
- My DFS traversal of LLVM is, at least for now, nearly complete! :)

llvm-svn: 77258
 2009-07-27 21:49:56 +00:00
Dan Gohman
daf5eafa6a Order unsigned before signed, for consistency. 
llvm-svn: 77257
 2009-07-27 21:49:34 +00:00
Dan Gohman
40bd748448 Make raw_null_ostream flush its buffer in its destructor, so that 
it conforms to the assertion added in r77245. This fixes a failure
in qa_override.c in clang's testsuite.

llvm-svn: 77255
 2009-07-27 21:46:02 +00:00
Chris Lattner
d519223908 hoist MCContext/MCStreamer up to AsmPrinter since we're going to start creating 
MCSections soon instead of Section for all targets, and we need something to
own them.

llvm-svn: 77252
 2009-07-27 21:28:04 +00:00
Daniel Dunbar
6de68a2544 Move MCContext and friends to StringRef based APIs. 
llvm-svn: 77251
 2009-07-27 21:22:30 +00:00
Chris Lattner
923a453dea simplify #includes. 
llvm-svn: 77250
 2009-07-27 21:13:35 +00:00
Owen Anderson
256c2c250e Move ConstantFP construction back to the 2.5-ish API. 
llvm-svn: 77247
 2009-07-27 20:59:43 +00:00
Devang Patel
1706411e39 80 columns! 
llvm-svn: 77243
 2009-07-27 20:30:05 +00:00
Sean Callanan
3b5de0fa36 Thanks, Bill! 
llvm-svn: 77240
 2009-07-27 19:45:28 +00:00
Chris Lattner
674e5fa434 Sink getSectionPrefixForUniqueGlobal down into the TAI 
implementations that need it, rearrange ELFTAI.

llvm-svn: 77236
 2009-07-27 19:14:14 +00:00
Sean Callanan
34d4b90554 Many of Daniel's fixes. 
I'm returning the number of bytes actually copied so that the client has some
warning when it reads past the end of the buffer.

I'm keeping the distinction between getByte() and getBytes() for now for
subclasses that use functions like ptrace() on Linux and only have a restricted
interface.  This makes their implementation easier, and subclasses can always
write a one-line implementation of readByte() that uses their custom 
readBytes().

llvm-svn: 77225
 2009-07-27 18:33:24 +00:00
Douglas Gregor
ea200f4d3a CMake configuration: find mkdtemp, mkstemp, mktemp. 
llvm-svn: 77219
 2009-07-27 18:23:41 +00:00
Chris Lattner
12c25bacbd make COFF work like ELF and macho, by splitting out into its own 
header even though there is only one COFF target.

llvm-svn: 77204
 2009-07-27 16:45:59 +00:00
Chris Lattner
062cc18e39 inline a method. 
llvm-svn: 77198
 2009-07-27 16:27:32 +00:00
Dan Gohman
e999569f50 Fix wording in comments. 
llvm-svn: 77193
 2009-07-27 16:09:48 +00:00
Chris Lattner
cd7d963b75 Eliminate getNamed/getUnnamedSection, adding a new and unified getOrCreateSection 
instead.

llvm-svn: 77186
 2009-07-27 06:17:14 +00:00
Chris Lattner
a2b00bdd7a Eliminate SectionFlags, just embed a SectionKind into Section 
instead and drive things based off of that.

llvm-svn: 77184
 2009-07-27 05:32:16 +00:00
Chris Lattner
0f4d60ca90 untangle a TargetAsmInfo hack where ELFTargetAsmInfo would create a 
'unnamed' bss section, but some impls would want a named one.  Since
they don't have consistent behavior, just make each target do their
own thing, instead of doing something "sortof common" then having
targets change immutable objects later.

llvm-svn: 77165
 2009-07-26 19:23:28 +00:00
Chris Lattner
8e840e942e Use the RHS length instead of the LHS length. They are both the same, 
but this ends up compiling code like this:

int foo(const StringRef &R) {
  return R == "food";
}

to use a constant sized memcmp instead of a variable memcmp.

llvm-svn: 77160
 2009-07-26 17:46:03 +00:00
Daniel Dunbar
4a36d5dcfd Remove Value::getName{Start,End}, the last of the old Name APIs. 
llvm-svn: 77152
 2009-07-26 09:48:23 +00:00
Daniel Dunbar
64abfd0337 Remove Value::getNameLen 
llvm-svn: 77148
 2009-07-26 08:34:35 +00:00
Daniel Dunbar
75a66c519b Eliminate some uses of DOUT, cerr, and getNameStart(). 
llvm-svn: 77145
 2009-07-26 07:49:05 +00:00
Chris Lattner
9104e8d808 remove a densemap from TargetAsmInfo that was uniquing the targetflags strings, 
just use a smallstring instead.

llvm-svn: 77144
 2009-07-26 07:33:58 +00:00
Chris Lattner
b508741de0 make SectionKind keep track of whether a global had an explicit 
section specified for it or not.

llvm-svn: 77142
 2009-07-26 07:14:28 +00:00
Chris Lattner
41570cf306 make SectionKind know whether a symbol is weak or not in addition 
to its classification.

llvm-svn: 77140
 2009-07-26 07:00:12 +00:00
Chris Lattner
71546b5147 Make the kind actually be private. 
llvm-svn: 77139
 2009-07-26 06:51:27 +00:00
Chris Lattner
61e4445f5a rename Mergable -> Mergeable and Writable -> Writeable 
llvm-svn: 77138
 2009-07-26 06:48:26 +00:00
Chris Lattner
e2a16438a6 remove a bunch of helper functions, just use SectionKind::get instead. 
llvm-svn: 77135
 2009-07-26 06:34:33 +00:00
Chris Lattner
1f709a74f6 simplify getSectionForMergableConstant to take a SectionKind. 
llvm-svn: 77134
 2009-07-26 06:26:55 +00:00
Chris Lattner
d44b68fbeb precreate 4/8/16 byte mergable sections to simplify code. 
llvm-svn: 77133
 2009-07-26 06:16:11 +00:00
Chris Lattner
e8b2f94ce2 introduce specialized mergable const sectionkinds for elements of size 4/8/16 to 
simplify targets.

llvm-svn: 77132
 2009-07-26 06:11:33 +00:00
Chris Lattner
b3d6d59c10 Rearrange all the SectionKinds and structure them into a hierarchical 
group instead of a bunch of random unrelated ideas.  Provide predicates
to categorize a SectionKind into a group, and use them instead of 
getKind() throughout the code.

This also renames a ton of SectionKinds to be more consistent and
evocative, and adds a huge number of comments on the enums so that
I will hopefully be able to remember how this stuff works long from
now.

llvm-svn: 77129
 2009-07-26 05:44:20 +00:00
Daniel Dunbar
a7a01acc7c Factor commonality in triple match routines into helper template for registering 
classes, and migrate existing targets over.

llvm-svn: 77126
 2009-07-26 05:03:33 +00:00
Daniel Dunbar
1c59fa86e2 Oops, forgot XCore. Sorry XCore! 
llvm-svn: 77125
 2009-07-26 04:52:45 +00:00
Daniel Dunbar
6b705e3a64 Update for API change. 
llvm-svn: 77124
 2009-07-26 04:23:03 +00:00
Chris Lattner
809a525ffa fix isReadOnly predicate to not include data that has to be 
writable because of teh dynamic linker.

llvm-svn: 77122
 2009-07-26 04:18:10 +00:00
Chris Lattner
f67024bb1c remove a dead enum case. 
llvm-svn: 77121
 2009-07-26 04:09:02 +00:00
Daniel Dunbar
5a9d56ab90 Update Triple to use StringRef/Twine based APIs. 
- This is now shorter, simpler, safer, and more efficient, what a deal.

llvm-svn: 77119
 2009-07-26 03:31:47 +00:00
Daniel Dunbar
b97f9fc3f5 Add StringRef::{slice, split}, two convenient string operations which are simple 
and efficient on a StringRef.

llvm-svn: 77117
 2009-07-26 03:18:15 +00:00
Chris Lattner
5547fd80ad put normal data into .data instead of .data.rel on elf systems. 
llvm-svn: 77116
 2009-07-26 03:06:11 +00:00
Daniel Dunbar
49987490c2 Kill Target specific ModuleMatchQuality stuff. 
- This was overkill and inconsistently implemented.

llvm-svn: 77114
 2009-07-26 02:22:58 +00:00
Daniel Dunbar
62e74f03c7 Add TargetRegistry::lookupTarget. 
- This is a simplified mechanism which just looks up a target based on the
   target triple, with a few additional flags.

 - Remove getClosestStaticTargetForModule, the moral equivalent is now:
     lookupTarget(Mod->getTargetTriple, true, false, ...);

 - This no longer does the fuzzy matching with target data (based on endianness
   and pointer width) that getClosestStaticTargetForModule was doing, but this
   was deemed unnecessary.

llvm-svn: 77111
 2009-07-26 02:12:58 +00:00
Chris Lattner
9cd489c7f1 finish simplifying DarwinTargetAsmInfo::SelectSectionForGlobal 
for now.  Make the section switching directives more consistent
by not including \n and including \t for them all.

llvm-svn: 77107
 2009-07-26 01:24:18 +00:00
Daniel Dunbar
3c3f0d5b63 Some clients rely on getName{Start,End} not returning 0, even if the length is 
0.
 - I could have swore the prev change went through a make check cycle...

llvm-svn: 77106
 2009-07-26 01:04:10 +00:00