Commit Graph

5908 Commits

Author SHA1 Message Date
Rafael Espindola 11afad0105 Modernize getELFDynamicSymbolIterators.
* Have it return a iterator_range.
* Remove the global function.
* Rename to getDynamicSymbolIterators.

llvm-svn: 240644
2015-06-25 14:39:35 +00:00
Matthias Braun da1b637c8d Revert "(HEAD -> master, origin/master, origin/HEAD) opt: Add option to strip or add llvm value names"
Accidental commit

This reverts commit r240583.

llvm-svn: 240584
2015-06-24 20:04:26 +00:00
Matthias Braun a7f3f03329 opt: Add option to strip or add llvm value names
llvm-svn: 240583
2015-06-24 20:03:33 +00:00
Rafael Espindola 6bf322101b Make computeSymbolSizes never fail.
On ELF that was already the case since getting the size of a symbol
never fails.

On MachO and COFF we could fail trying to get the section of a symbol. But
we don't really need the section, just the section number to know if two
symbols are in the same section or not.

llvm-svn: 240580
2015-06-24 19:57:32 +00:00
Rafael Espindola d68fb74c2b Don't get confused with sections whose section number is reserved.
It is perfectly possible for SHNDX to contain indexes that have the same value
as reserved st_shndx values.

llvm-svn: 240544
2015-06-24 14:48:54 +00:00
Pawel Bylica 23663472f2 [llvm-stress] Simple refactoring and better style. NFC.
llvm-svn: 240534
2015-06-24 11:49:44 +00:00
Rafael Espindola d7a32ea4b8 Change how symbol sizes are handled in lib/Object.
COFF and MachO only define symbol sizes for common symbols. Reflect that
in the class hierarchy by having a method for common symbols only in the base
and a general one in ELF.

This avoids the need of using a magic value for the size, which had a few
problems
* Most callers didn't check for it.
* The ones that did could not tell the magic value from a file actually having
  that value.

llvm-svn: 240529
2015-06-24 10:20:30 +00:00
Petar Jovanovic 280e562072 Add "-mcpu=" option to llvm-rtdyld
This patch adds the -mcpu= option to llvm-rtdyld. With this option, one
can test relocations for different types of CPUs (e.g. Mips64r6).

Patch by Vladimir Radosavljevic.

Differential Revision: http://reviews.llvm.org/D10503

llvm-svn: 240477
2015-06-23 22:52:19 +00:00
Sanjoy Das 3f1bc3b2bb Revert "[FaultMaps] Move FaultMapParser to Object/"
This reverts commit r240364 (git c49542e5bb186).  The issue r240364 was
trying to fix was fixed independently in r240362.

llvm-svn: 240448
2015-06-23 20:09:03 +00:00
Steven Wu df2eb7777d Adding the missing LTO API to lto.exports
Summary:
lto_codegen_set_should_embed_uselists is introduced in r235943 but not
added to lto.exports. Add to export list to expose the API.

Reviewers: dexonsmith

Subscribers: rafael, llvm-commits

Differential Revision: http://reviews.llvm.org/D10658

llvm-svn: 240442
2015-06-23 18:56:48 +00:00
Rafael Espindola ae3ac08326 Don't pass a 32 bit value to "%08" PRIx64.
Should fix the arm bots.

llvm-svn: 240439
2015-06-23 18:34:25 +00:00
Rafael Espindola 5f7ade26d0 objdump: Don't print a (always 0) size for MachO symbols.
Only common symbol on MachO and COFF have a size.

For COFF we already had a custom format.

For MachO, there is no native objdump and we were printing it as ELF. Now
we only print the sizes for symbols that actually have them.

llvm-svn: 240422
2015-06-23 15:45:38 +00:00
Rafael Espindola c233f74e6e Simplify the Mangler interface now that DataLayout is mandatory.
We only need to pass in a DataLayout when mangling a raw string, not when
constructing the mangler.

llvm-svn: 240405
2015-06-23 13:59:29 +00:00
Rafael Espindola a4a4093ed8 Compute correct symbol sizes for MachO and COFF.
Before this would dump from the symbol start to the end of the section.

llvm-svn: 240367
2015-06-23 02:20:37 +00:00
Rafael Espindola b109c032bd Extract an utility for computing symbol sizes on MachO and COFF.
I will add a second user in the next commit.

llvm-svn: 240366
2015-06-23 02:08:48 +00:00
Sanjoy Das 9d95716c15 [FaultMaps] Move FaultMapParser to Object/
Summary:
That way llvm-objdump can rely on it without adding an extra dependency
on CodeGen.

This change duplicates the FaultKind enum and the code that serializes
it to a string.  I could not figure out a way to get around this without
adding a new dependency to Object

Reviewers: rafael, ab

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10619

llvm-svn: 240364
2015-06-23 01:05:26 +00:00
NAKAMURA Takumi 75b2620671 llvm/tools/llvm-objdump/CMakeLists.txt: Update libdeps to fix r240304.
llvm-svn: 240362
2015-06-23 00:59:12 +00:00
Chris Bieneman 69533a5a85 [CMake] Treating LLVM_INCLUDE_TOOLS, which is a bool, as a string to change behaviors of the build is a dirty hack. We shouldn't do it.
Summary: I don't think anyone is relying on this behavior for bootstrapping (because I don't think it works), but if you do need it, speak now or forever hold your peace.

Reviewers: chapuni, samsonov

Reviewed By: samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10613

llvm-svn: 240344
2015-06-22 21:58:02 +00:00
Frederic Riss ebc162a766 [Object] Search for architecures by name in MachOUniversalBinary::getObjectForArch()
The reason we need to search by name rather than by Triple::ArchType
is to handle subarchitecture correclty. There is no different ArchType
for the x86_64h architecture (it identifies itself as x86_64), or for
the various ARM subarches. The only way to get to the subarch slice
in an universal binary is to search by name.

This issue led to hard to debug and transient symbolication failures
in Asan tests (it mostly works, because the files are very similar).

This also affects the Profiling infrastucture as it is the other user
of that API.

Reviewers: samsonov, bogner

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10604

llvm-svn: 240339
2015-06-22 21:33:24 +00:00
Tom Stellard 24288b8f43 Support/ELF: Add EM_AMDGPU
Summary: This will be used by the R600 backend.

Reviewers: chandlerc, rafael

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10389

llvm-svn: 240329
2015-06-22 21:03:47 +00:00
Sanjoy Das 6f567a4b79 [FaultMaps] Add a parser for the __llvm__faultmaps section.
Summary:
The parser is exercised by llvm-objdump using -print-fault-maps.  As is
probably obvious, the code itself was "heavily inspired" by
http://reviews.llvm.org/D10434.

Reviewers: reames, atrick, JosephTremoulet

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10491

llvm-svn: 240304
2015-06-22 18:03:02 +00:00
David Blaikie 8b31d41822 ArrayRef-ify libDriverMain
llvm-svn: 240234
2015-06-21 06:31:56 +00:00
Rafael Espindola 63a88ce5d4 Make getRelocationSection MachO only.
There are 3 types of relocations on MachO
* Scattered
* Section based
* Symbol based

On ELF and COFF relocations are symbol based.

We were in the strange situation that we abstracted over two of them. This makes
section based relocations MachO only.

llvm-svn: 240149
2015-06-19 17:54:28 +00:00
Rafael Espindola 9fed250566 Fix the build.
Sorry, I have no idea how grep failed to find this.

llvm-svn: 240133
2015-06-19 14:34:12 +00:00
Eric Christopher 572e03a396 Fix "the the" in comments.
llvm-svn: 240112
2015-06-19 01:53:21 +00:00
Rafael Espindola 9ac06a0e6b Improve the --expand-relocs handling of MachO.
In a relocation target can take 3 basic forms

* A r_value in scattered relocations.
* A symbol in external relocations.
* A section is non-external relocations.

Have the dump reflect that. With this change we go from

CHECK-NEXT:       Extern: 0
CHECK-NEXT:       Type: X86_64_RELOC_SUBTRACTOR (5)
CHECK-NEXT:       Symbol: 0x2
CHECK-NEXT:       Scattered: 0

To just

// CHECK-NEXT:       Type: X86_64_RELOC_SUBTRACTOR (5)
// CHECK-NEXT:       Section: __data (2)

Since the relocation is with a section, we print the seciton name and don't
need to say that it is not scattered or external.

Someone motivated can add further special cases for things like
ARM64_RELOC_ADDEND and ARM_RELOC_PAIR.

llvm-svn: 240073
2015-06-18 22:38:20 +00:00
David Majnemer 7fddeccb8b Move the personality function from LandingPadInst to Function
The personality routine currently lives in the LandingPadInst.

This isn't desirable because:
- All LandingPadInsts in the same function must have the same
  personality routine.  This means that each LandingPadInst beyond the
  first has an operand which produces no additional information.

- There is ongoing work to introduce EH IR constructs other than
  LandingPadInst.  Moving the personality routine off of any one
  particular Instruction and onto the parent function seems a lot better
  than have N different places a personality function can sneak onto an
  exceptional function.

Differential Revision: http://reviews.llvm.org/D10429

llvm-svn: 239940
2015-06-17 20:52:32 +00:00
Rafael Espindola f27fa2bb9d Use named temporaries for directional labels.
Directional labels can show up in symbol tables (and we have a llvm-mc test for
that). Given that, we need to make sure they are named.

With that out of the way, use setUseNamesOnTempLabels in llvm-mc so that it
too benefits from the memory saving.

llvm-svn: 239914
2015-06-17 16:26:47 +00:00
Rafael Espindola 1aabf982bc Use std::unique_ptr to manage the DataStreamer in bitcode parsing.
We were already deleting it, this just makes it explicit.

llvm-svn: 239867
2015-06-16 23:29:49 +00:00
Rafael Espindola dcd1dca275 Return a unique_ptr from getLazyBitcodeModule and parseBitcodeFile. NFC.
llvm-svn: 239858
2015-06-16 22:27:55 +00:00
Simon Atanasyan 6e07e9305b [llvm-readobj] Print MIPS .reginfo section content
llvm-svn: 239856
2015-06-16 21:47:43 +00:00
Daniel Sanders 335487ad87 Replace string GNU Triples with llvm::Triple in TargetMachine::getTargetTriple(). NFC.
Summary:
This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.

Reviewers: rengolin

Reviewed By: rengolin

Subscribers: llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D10381

llvm-svn: 239815
2015-06-16 13:15:50 +00:00
Daniel Sanders 8d8b13dc19 Recommit r239721: Replace string GNU Triples with llvm::Triple in InitMCObjectFileInfo. NFC.
Summary:
This affects other tools so the previous C++ API has been retained as a
deprecated function for the moment. Clang has been updated with a trivial
patch (not covered by the pre-commit review) to avoid breaking -Werror builds.
Other in-tree tools will be fixed with similar patches.

This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.

The first time this was committed it accidentally fixed an inconsistency in
triples in llvm-mc and this caused a failure. This inconsistency was fixed in
r239808.

Reviewers: rengolin

Reviewed By: rengolin

Subscribers: llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D10366

llvm-svn: 239812
2015-06-16 12:18:07 +00:00
Daniel Sanders c535d93b47 [llvm-mc] The object form of the GNU triple should be the same as the string form.
Summary:
GetTarget() may modify TripleName without also updating TheTriple.
This can lead to situations where the MCObjectStreamer has a different triple
to the rest of LLVM.

This inconsistency caused sparc-little-endian.s to pass on Windows because most
of LLVM had sparcel-pc-win32 while MCObjectStreamer had "". I believe the same
kind of thing was also true of Darwin.

Reviewers: rengolin

Reviewed By: rengolin

Subscribers: llvm-commits, rengolin, rafael

Differential Revision: http://reviews.llvm.org/D10450

llvm-svn: 239808
2015-06-16 09:57:38 +00:00
Duncan P. N. Exon Smith 02b6fa904b modules: Move ProfileKinds to an anonymous namespace
Fix a build failure with `LLVM_ENABLE_MODULES` due to
`ProfileData::instr` conflicting with a function `instr()` in
`<curses.h>`.

llvm-svn: 239793
2015-06-16 00:43:04 +00:00
Alex Lorenz 735c47ec3e MIR Serialization: Connect the machine function analysis pass to the MIR parser.
This commit connects the machine function analysis pass (which creates machine
functions) to the MIR parser, which will initialize the machine functions 
with the state from the MIR file and reconstruct the machine IR.

This commit introduces a new interface called 'MachineFunctionInitializer',
which can be used to provide custom initialization for the machine functions.

This commit also introduces a new diagnostic class called 
'DiagnosticInfoMIRParser' which is used for MIR parsing errors.
This commit modifies the default diagnostic handling in LLVMContext - now the
the diagnostics are printed directly into llvm::errs() so that the MIR parsing 
errors can be printed with colours.  

Reviewers: Justin Bogner

Differential Revision: http://reviews.llvm.org/D9928

llvm-svn: 239753
2015-06-15 20:30:22 +00:00
Rafael Espindola 92200d237a gold-plugin: save the .o when given -save-temps.
The plugin now save the bitcode before and after optimizations and the
.o that is passed to the linker.

llvm-svn: 239726
2015-06-15 13:36:27 +00:00
Daniel Sanders fa555dc7f8 Revert r239721 - Replace string GNU Triples with llvm::Triple in InitMCObjectFileInfo. NFC.
It appears to cause sparc-little-endian.s to assert on Windows and Darwin.

llvm-svn: 239724
2015-06-15 10:34:38 +00:00
Daniel Sanders d6d12a1192 Replace string GNU Triples with llvm::Triple in InitMCObjectFileInfo. NFC.
Summary:
This affects other tools so the previous C++ API has been retained as a
deprecated function for the moment. Clang has been updated with a trivial
patch (not covered by the pre-commit review) to avoid breaking -Werror builds.
Other in-tree tools will be fixed with similar trivial patches.

This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.

Reviewers: rengolin

Reviewed By: rengolin

Subscribers: llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D10366

llvm-svn: 239721
2015-06-15 09:19:41 +00:00
Lang Hames 37cc9fadd5 [Orc] Tidy up initialization based on review feedback for r239561 from dblaikie.
NFC.

llvm-svn: 239645
2015-06-12 23:13:06 +00:00
Lang Hames 2e36ddf671 [Orc] Fix a bug in the CompileOnDemand layer where stub decls were not cloned
into partitions. Also, add an option to clone stub definitions (not just decls)
into partitions: these definitions could be inlined in some places to avoid the
overhead of calling via the stub.

Found by inspection - no test case yet, although I plan to add a unit test for
this once the CompileOnDemand layer refactoring settles down.

llvm-svn: 239640
2015-06-12 21:31:15 +00:00
Douglas Katzman 8f01f1cfc3 Wrap some long lines in LLVMBuild files. NFC
As suggested by jroelofs in a prior review (D9752),
it makes sense to generally prefer multi-line format.

llvm-svn: 239632
2015-06-12 18:44:57 +00:00
Rafael Espindola c74ac023d8 Have the ELF symbol predicates match more directly the spec.
The underlaying issues is that this code can't really know if an OS specific or
processor specific section number should return true or false.

One option would be to assert or return an error, but that looks like over
engineering since extensions are not that common.

It seems better to have these be direct implementation of the ELF spec so that
they are natural for someone familiar with ELF reading the code.

Code that does have to handle OS/Architecture specific values can do it at
a higher level.

llvm-svn: 239618
2015-06-12 17:23:39 +00:00
Lang Hames 3f9960a969 [Orc] Remove some unnecesary includes and whitespace that slipped in to r239561.
NFC.

llvm-svn: 239564
2015-06-11 22:12:24 +00:00
Lang Hames 6a14edd914 [Orc] Make partition identification in the CompileOnDemand layer lazy.
This also breaks out the logical dylib symbol resolution logic.

llvm-svn: 239561
2015-06-11 21:45:19 +00:00
Peter Collingbourne bc05163f15 LibDriver, llvm-lib: introduce.
llvm-lib is intended to be a lib.exe compatible utility that also
understands bitcode. The implementation lives in a library so that
lld can use it to implement /lib.

Differential Revision: http://reviews.llvm.org/D10297

llvm-svn: 239434
2015-06-09 21:50:22 +00:00
Rui Ueyama 7d09919534 Remove object_error::success and use std::error_code() instead
make_error_code(object_error) is slow because object::object_category()
uses a ManagedStatic variable. But the real problem is that the function is
called too frequently. This patch uses std::error_code() instead of
object_error::success. In most cases, we return "success", so this patch
reduces number of function calls to that function.

http://reviews.llvm.org/D10333

llvm-svn: 239409
2015-06-09 15:20:42 +00:00
Lang Hames 1899d0c3b1 [lli] Make the OptLevel (-O=<char>) option accessible to the lazy JIT.
No test case - this only affects generated code performance.

llvm-svn: 239383
2015-06-09 02:43:27 +00:00
Davide Italiano 056decbfee [llvm-readobj] Use the new symbol API.
llvm-svn: 239286
2015-06-08 04:55:29 +00:00
Peter Collingbourne 144af17704 Do not build LLD from tools/Makefile, as LLD no longer has a Makefile build.
llvm-svn: 239283
2015-06-08 04:04:13 +00:00
Peter Collingbourne fd66a48a75 llvm-ar: Move archive writer to Object.
No functional change intended, other than some minor changes to certain
diagnostics.

Differential Revision: http://reviews.llvm.org/D10296

llvm-svn: 239278
2015-06-08 02:32:01 +00:00
Colin LeMahieu 14ec76eb63 [objdump] Moving PrintImmHex out of MachODump and in to llvm-objdump and setting instprinter appropriately.
llvm-svn: 239265
2015-06-07 21:07:17 +00:00
Colin LeMahieu 229a1e69fc Teaching llvm-mc how to understand the defsym command line option. This allows integer-constant symbols to be defined on the command line and used during assembly.
llvm-svn: 239240
2015-06-07 01:46:24 +00:00
Frederic Riss 5a642079d7 [dsymutil] Add support for linking the debug_frame section.
Linking the debug frame section is actually very easy as we just have to
patch the start address in the FDE header and then copy the rest of the
FDE without even looking at it. The only small complexity comes from the
handling of the CIEs that we should unique across object file. This is
also really easy by using a StringMap keyed on the raw contents of the
CIE.

llvm-svn: 239198
2015-06-05 23:06:11 +00:00
Frederic Riss a81e88141e [dsymutil] Rename a variable to appease some bots.
Anyway having the type and the name of the member being the same
thing wasn't the wisest of the choices.

llvm-svn: 239190
2015-06-05 21:21:57 +00:00
Frederic Riss 4f5874a51f [dsymutil] Have the YAML deserialization rewrite the object address of symbols.
The main use of the YAML debug map format is for testing inside LLVM. If we have IR
files in the tests used to generate object files, then we obviously don't know the
addresses of the symbols inside the object files beforehand.

This change lets the YAML import lookup the addresses in the object files and rewrite
them. This will allow to have test that really don't need any binary input.

llvm-svn: 239189
2015-06-05 21:12:07 +00:00
Frederic Riss f37964cc41 [dsymutil] Apply clang-format. NFC
llvm-svn: 239186
2015-06-05 20:27:07 +00:00
Frederic Riss 4d0ba66869 [dsymutil] Out-line the YAML serialization code. NFC
It will get a bit bigger in an upcoming commit. No need to have all
of that in the header.

Also move parseYAMLDebugMap() to the same place as the serialization
code. This way it will be able to share a private Context object with
it.

llvm-svn: 239185
2015-06-05 20:27:04 +00:00
Frederic Riss c0866ad2c0 [dsymutil] Handle the -oso-prepend-path option when the input is a YAML debug map
All the tests using a YAML debug map will need this.

llvm-svn: 239163
2015-06-05 16:35:44 +00:00
Alexey Samsonov 50d0fbd2b9 llvm-objdump: return non-zero exit code for certain cases of invalid input
* If the input file is missing;
* If the type of input object file can't be recognized;
* If the object file can't be parsed correctly.

llvm-svn: 239065
2015-06-04 18:34:11 +00:00
Rafael Espindola 7884c95c7e Disassemble the start of sections even if there is no symbol there.
We already handled a section with no symbols, extend that to also handle a
section with symbols that don't include the section start.

llvm-svn: 239039
2015-06-04 15:01:05 +00:00
Alexey Samsonov d319c4fbbc [Object, MachO] Introduce MachOObjectFile::load_commands() range iterator.
Summary:
Now users don't have to manually deal with getFirstLoadCommandInfo() /
getNextLoadCommandInfo(), calculate the number of load segments, etc.

No functionality change.

Test Plan: regression test suite

Reviewers: rafael, lhames, loladiro

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10144

llvm-svn: 238983
2015-06-03 22:19:36 +00:00
Frederic Riss 90e0bd96ff Reapply r238941 - [dsymutil] Accept a YAML debug map as input instead of a binary.
With a couple more constructors that GCC thinks are necessary.

Original commit message:

[dsymutil] Accept a YAML debug map as input instead of a binary.

To do this, the user needs to pass the new -y flag.
As it wasn't tested before, the debug map YAML deserialization was
completely buggy (mainly because the DebugMapObject has a dual
mapping that allows to search by name and by address, but only the
StringMap got populated). It's fixed and tested in this commit by
augmenting some test with a 2 stage dwarf link: a frist llvm-dsymutil
reads the debug map and pipes it in a second instance that does the
actual link without touching the initial binary.

llvm-svn: 238959
2015-06-03 20:29:24 +00:00
Sanjay Patel f9d009b755 add missing dependency on Target lib for tools
This was exposed by r238842 (which was reverted by r238900)
when doing a CMake build with -DBUILD_SHARED_LIBS=ON.

llvm-svn: 238953
2015-06-03 19:07:51 +00:00
Tim Northover 5af339a1a9 RuntimeDyld: override EH frame registration with trivial version.
llvm-rtdyld was relying on the default memory manager's EH frame registration,
which is host-dependent rather than target-dependent. As a result, big-endian
ELF Mips EH frames were being registered on OS X (and elsewhere). This is a
really bad idea.

llvm-svn: 238951
2015-06-03 18:26:52 +00:00
Frederic Riss 28dbc5ab8b Revert "[dsymutil] Accept a YAML debug map as input instead of a binary."
This reverts commit r238941 while I figure out the bot issues.

llvm-svn: 238943
2015-06-03 17:08:42 +00:00
Frederic Riss 063d674c21 [dsymutil] Accept a YAML debug map as input instead of a binary.
To do this, the user needs to pass the new -y flag.
As it wasn't tested before, the debug map YAML deserialization was
completely buggy (mainly because the DebugMapObject has a dual
mapping that allows to search by name and by address, but only the
StringMap got populated). It's fixed and tested in this commit by
augmenting some test with a 2 stage dwarf link: a frist llvm-dsymutil
reads the debug map and pipes it in a second instance that does the
actual link without touching the initial binary.

llvm-svn: 238941
2015-06-03 16:57:16 +00:00
Frederic Riss 34238cfa24 [dsymutil] Replace -parse-only option with -dump-debug-map
As the serialized debug map is becoming a first class citizen, a way
to cleanly dump it is required. We used -parse-only combined with
-v for that purpose before, but it dumps a lot of unrelated debug
stuff. Dumping the debug map was the only use of the -parse-only flag
anyway, so replace it with a more useful option.

llvm-svn: 238940
2015-06-03 16:57:12 +00:00
Frederic Riss 9b07a8d9c9 [dsymutil] Reflow option declarations to be more readable.
llvm-svn: 238939
2015-06-03 16:57:07 +00:00
Rafael Espindola 75d5b5495f Fix the interpretation of a 0 st_name.
The ELF spec is very clear:

-----------------------------------------------------------------------------
If the value is non-zero, it represents a string table index that gives the
symbol name. Otherwise, the symbol table entry has no name.
--------------------------------------------------------------------------

In particular, a st_name of 0 most certainly doesn't mean that the symbol has
the same name as the section.

llvm-svn: 238899
2015-06-03 05:14:22 +00:00
Rafael Espindola 37070a5a3a Move to llvm-objdump a large amount of code to that is only used there.
llvm-svn: 238898
2015-06-03 04:48:06 +00:00
Justin Bogner 733013c631 llvm-cov: Make llvm-cov --version DTRT
In r233132 we started requiring a subcommand in llvm-cov, but this
made `llvm-cov --version` invalid, which is kind of silly. Print
version information in this case, as most people would expect.

llvm-svn: 238897
2015-06-03 02:48:09 +00:00
Rafael Espindola ac729b468c Simplify now that we always use an alignment of 2 for ELF files.
This saves 123144 bytes out of llvm-nm on powerpc64le.

llvm-svn: 238824
2015-06-02 12:05:27 +00:00
Frederic Riss f30ad9bb2a [dsymutil] Remove extraneous std::move of local in return statement.
llvm-svn: 238790
2015-06-01 22:03:05 +00:00
Frederic Riss 88ad8d2b92 [dsymutil] Remove unnecessary ';'
llvm-svn: 238783
2015-06-01 21:25:53 +00:00
Frederic Riss 08462f7859 [dsymutil] Use YAMLIO to dump debug map.
Doing so will allow us to also accept a YAML debug map in input as using
YAMLIO gives us the parsing for free. Being able to have textual debug
maps will in turn allow much more control over the tests, because 1/
no need to check-in a binary containing the debug map and 2/ it will allow
to use the same objects/IR files with made-up debug-maps to test
different scenari.

llvm-svn: 238781
2015-06-01 21:12:45 +00:00
Peter Collingbourne 3cc69d90f0 Make the C++ LTO API easier to use from C++ clients.
Start using C++ types such as StringRef and MemoryBuffer in the C++ LTO
API. In doing so, clarify the ownership of the native object file: the caller
now owns it, not the LTOCodeGenerator. The C libLTO library has been modified
to use a derived class of LTOCodeGenerator that owns the object file.

Differential Revision: http://reviews.llvm.org/D10114

llvm-svn: 238776
2015-06-01 20:08:30 +00:00
Rafael Espindola 5eb02e45e3 Simplify another function that doesn't fail.
llvm-svn: 238703
2015-06-01 00:27:26 +00:00
Rafael Espindola a4d22472f3 Simplify interface of function that doesn't fail.
llvm-svn: 238700
2015-05-31 23:52:50 +00:00
Rafael Espindola a82ce1d97a For COFF and MachO, compute the gap between to symbols.
Before r238028 we used to do this in O(N^2), now we do it in O(N log N).

llvm-svn: 238698
2015-05-31 23:15:35 +00:00
Rafael Espindola da1762754b Use a range loop. NFC.
llvm-svn: 238693
2015-05-31 22:13:51 +00:00
Keno Fischer 281b6941cf Add RelocVisitor support for MachO
This commit adds partial support for MachO relocations to RelocVisitor.
A simple test case is added to show that relocations are indeed being
applied and that using llvm-dwarfdump on MachO files no longer errors.
Correctness is not yet tested, due to an unrelated bug in DebugInfo,
which will be fixed with appropriate testcase in a followup commit.

Differential Revision: http://reviews.llvm.org/D8148

llvm-svn: 238663
2015-05-30 19:44:53 +00:00
Benjamin Kramer f5e2fc474d Replace push_back(Constructor(foo)) with emplace_back(foo) for non-trivial types
If the type isn't trivially moveable emplace can skip a potentially
expensive move. It also saves a couple of characters.


Call sites were found with the ASTMatcher + some semi-automated cleanup.

memberCallExpr(
    argumentCountIs(1), callee(methodDecl(hasName("push_back"))),
    on(hasType(recordDecl(has(namedDecl(hasName("emplace_back")))))),
    hasArgument(0, bindTemporaryExpr(
                       hasType(recordDecl(hasNonTrivialDestructor())),
                       has(constructExpr()))),
    unless(isInTemplateInstantiation()))

No functional change intended.

llvm-svn: 238602
2015-05-29 19:43:39 +00:00
Colin LeMahieu 35436a2634 [Objdump] Removing unused parameter.
llvm-svn: 238557
2015-05-29 14:48:25 +00:00
Colin LeMahieu 68d967d92e [Hexagon] Disassembling, printing, and emitting instructions a whole-bundle at a time which is the semantic unit for Hexagon. Fixing tests to use the new format. Disabling tests in the direct object emission path for a followup patch.
llvm-svn: 238556
2015-05-29 14:44:13 +00:00
Aaron Ballman 1196ca2113 Removing a switch statement that only contains a default; NFC.
llvm-svn: 238552
2015-05-29 13:00:07 +00:00
Colin LeMahieu 0b5890d411 [llvm] Adding vdtor to fix warning.
llvm-svn: 238494
2015-05-28 20:59:08 +00:00
Colin LeMahieu fb76b007d3 [Objdump] Allow instruction pretty printing to be specialized by the target triple.
Differential Revision: http://reviews.llvm.org/D8427

llvm-svn: 238457
2015-05-28 19:07:14 +00:00
Duncan P. N. Exon Smith b04fb5ed25 AsmPrinter: Rename begin_values() => values_begin(), NFC
llvm-svn: 238456
2015-05-28 18:55:38 +00:00
Colin LeMahieu 2048ea4056 [llvm] Parameterizing the output stream for dumpbytes and outputting directly to stream.
llvm-svn: 238453
2015-05-28 18:39:50 +00:00
Alexey Samsonov d804a1e36b Add llvm-dwarfdump-fuzzer that uses LibFuzzer to fuzz llvm-dwarfdump tool.
The fuzzer is very simple, but not quite useful at the moment: it's unable
to discover "interesting" examples, as LLVMObject library is terrible at
error recovery, calling "report_fatal_error()" far too often.

llvm-svn: 238451
2015-05-28 18:35:18 +00:00
Aaron Ballman e08537f3ea Silencing two signed/unsigned mismatch warnings; NFC.
llvm-svn: 238419
2015-05-28 12:55:59 +00:00
Duncan P. N. Exon Smith 88a8fc5448 AsmPrinter: Stop exposing underlying DIEValue list, NFC
Change the `DIE` API to hide the implementation of the list of
`DIEValue`s.

llvm-svn: 238369
2015-05-27 22:44:06 +00:00
Duncan P. N. Exon Smith 815a6eb55d AsmPrinter: Store abbreviation data directly in DIE and DIEValue
Stop storing a `DIEAbbrev` in `DIE`, since the data fits neatly inside
the `DIEValue` list.  Besides being a cleaner data structure (avoiding
the parallel arrays), this gives us more freedom to rearrange the
`DIEValue` list.

This fixes the temporary memory regression from 845 MB up to 879 MB, and
drops it further to 829 MB for a net memory decrease of around 1.9%
(incremental decrease around 5.7%).

(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)

llvm-svn: 238364
2015-05-27 22:31:41 +00:00
Duncan P. N. Exon Smith e7e1d0c706 Reapply "AsmPrinter: Change DIEValue to be stored by value"
This reverts commit r238350, effectively reapplying r238349 after fixing
(all?) the problems, all somehow related to how I was using
`AlignedArrayCharUnion<>` inside `DIEValue`:

  - MSVC can only handle `sizeof()` on types, not values.  Change the
    assert.
  - GCC doesn't know the `is_trivially_copyable` type trait.  Instead of
    asserting it, add destructors.
  - Call placement new even when constructing POD (i.e., the pointers).
  - Instead of copying the char buffer, copy the casted classes.

I've left in a couple of `static_assert`s that I think both MSVC and GCC
know how to handle.  If the bots disagree with me, I'll remove them.

  - Check that the constructed type is either standard layout or a
    pointer.  This protects against a programming error: we really want
    the "small" `DIEValue`s to be small and simple, so don't
    accidentally change them not to be.
  - Similarly, check that the size of the buffer is no bigger than a
    `uint64_t` or a pointer.  (I thought checking against
    `sizeof(uint64_t)` would be good enough, but Chandler suggested that
    pointers might sometimes be bigger than that in the context of
    sanitizers.)

I've also committed r238359 in the meantime, which introduces a
DIEValue.def to simplify dispatching between the various types (thanks
to a review comment by David Blaikie).  Without that, this commit would
be almost unintelligible.

Here's the original commit message:
--
Change `DIEValue` to be stored/passed/etc. by value, instead of
reference.  It's now a discriminated union, with a `Val` field storing
the actual type.  The classes that used to inherit from `DIEValue` no
longer do.  There are two categories of these:

  - Small values fit in a single pointer and are stored by value.
  - Large values require auxiliary storage, and are stored by reference.

The only non-mechanical change is to tools/dsymutil/DwarfLinker.cpp.  It
was relying on `DIEInteger`s being passed around by reference, so I
replaced that assumption with a `PatchLocation` type that stores a safe
reference to where the `DIEInteger` lives instead.

This commit causes a temporary regression in memory usage, since I've
left merging `DIEAbbrevData` into `DIEValue` for a follow-up commit.  I
measured an increase from 845 MB to 879 MB, around 3.9%.  The follow-up
drops it lower than the starting point, and I've only recently brought
the memory this low anyway, so I'm committing these changes separately
to keep them incremental.  (I also considered swapping the commits, but
the other one first would cause a lot more code churn.)

(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)
--

llvm-svn: 238362
2015-05-27 22:14:58 +00:00
Duncan P. N. Exon Smith 583bc03829 Revert "AsmPrinter: Change DIEValue to be stored by value"
This reverts commit r238349, since it caused some errors on bots:
  - std::is_trivially_copyable isn't available until GCC 5.0.
  - It was complaining about strict aliasing with my use of
    ArrayCharUnion.

llvm-svn: 238350
2015-05-27 19:30:27 +00:00
Duncan P. N. Exon Smith 7735b48a8b AsmPrinter: Change DIEValue to be stored by value
Change `DIEValue` to be stored/passed/etc. by value, instead of
reference.  It's now a discriminated union, with a `Val` field storing
the actual type.  The classes that used to inherit from `DIEValue` no
longer do.  There are two categories of these:

  - Small values fit in a single pointer and are stored by value.
  - Large values require auxiliary storage, and are stored by reference.

The only non-mechanical change is to tools/dsymutil/DwarfLinker.cpp.  It
was relying on `DIEInteger`s being passed around by reference, so I
replaced that assumption with a `PatchLocation` type that stores a safe
reference to where the `DIEInteger` lives instead.

This commit causes a temporary regression in memory usage, since I've
left merging `DIEAbbrevData` into `DIEValue` for a follow-up commit.  I
measured an increase from 845 MB to 879 MB, around 3.9%.  The follow-up
drops it lower than the starting point, and I've only recently brought
the memory this low anyway, so I'm committing these changes separately
to keep them incremental.  (I also considered swapping the commits, but
the other one first would cause a lot more code churn.)

(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)

llvm-svn: 238349
2015-05-27 19:22:50 +00:00
Alex Lorenz 2bdb4e1063 Resubmit r237954 (MIR Serialization: print and parse LLVM IR using MIR format).
This commit a 3rd attempt at comitting the initial MIR serialization patch.
The first commit (r237708) was reverted in 237730. Then the second commit
(r237954) was reverted in r238007, as the MIR library under CodeGen caused
a circular dependency where the CodeGen library depended on MIR and MIR
library depended on CodeGen.

This commit has fixed the dependencies between CodeGen and MIR by
reorganizing the MIR serialization code - the code that prints out
MIR has been moved to CodeGen, and the MIR library has been renamed
to MIRParser. Now the CodeGen library doesn't depend on the
MIRParser library, thus the circular dependency no longer exists.

--Original Commit Message--

MIR Serialization: print and parse LLVM IR using MIR format.

This commit is the initial commit for the MIR serialization project.
It creates a new library under CodeGen called 'MIR'. This new
library adds a new machine function pass that prints out the LLVM IR
using the MIR format. This pass is then added as a last pass when a
'stop-after' option is used in llc. The new library adds the initial
functionality for parsing of MIR files as well. This commit also
extends the llc tool so that it can recognize and parse MIR input files.

Reviewers: Duncan P. N. Exon Smith, Matthias Braun, Philip Reames

Differential Revision: http://reviews.llvm.org/D9616 

llvm-svn: 238341
2015-05-27 18:02:19 +00:00
Akira Hatanaka e36505c7f5 Remove NoFramePointerElim and NoFramePointerElimOverride from TargetOptions and
remove ExecutionEngine's dependence on CodeGen. NFC.

This is a follow-up to r238080.

Differential Revision: http://reviews.llvm.org/D9830

llvm-svn: 238244
2015-05-26 20:17:20 +00:00
Davide Italiano f071bd0a18 [llvm-readobj/ELF] Teach how to decode DF_1_XXX flags
llvm-readobj -dynamic-table output.
Before:
0x000000006FFFFFFB unknown

After:
0x000000006FFFFFFB FLAGS_1 NOW ORIGIN

Differential Revision:	http://reviews.llvm.org/D9958

llvm-svn: 238151
2015-05-25 19:12:18 +00:00
NAKAMURA Takumi fb3bd7127a Prune CRLFs.
llvm-svn: 238125
2015-05-25 01:43:23 +00:00
Akira Hatanaka ddf76aa36f Stop resetting NoFramePointerElim in TargetMachine::resetTargetOptions.
This is part of the work to remove TargetMachine::resetTargetOptions.

In this patch, instead of updating global variable NoFramePointerElim in
resetTargetOptions, its use in DisableFramePointerElim is replaced with a call
to TargetFrameLowering::noFramePointerElim. This function determines on a
per-function basis if frame pointer elimination should be disabled.

There is no change in functionality except that cl:opt option "disable-fp-elim"
can now override function attribute "no-frame-pointer-elim". 

llvm-svn: 238080
2015-05-23 01:14:08 +00:00
Akira Hatanaka bd881834c5 Simplify and rename function overrideFunctionAttributes. NFC.
This is in preparation to making changes needed to stop resetting
NoFramePointerElim in resetTargetOptions.

llvm-svn: 238079
2015-05-23 01:12:26 +00:00
Rafael Espindola f7cfed4bff Fix llvm-nm -S option.
It is explicitly documented to have no effect on object formats where symbols
don't have sizes.

llvm-svn: 238019
2015-05-22 13:28:35 +00:00
NAKAMURA Takumi 263b27997d Revert r237954, "Resubmit r237708 (MIR Serialization: print and parse LLVM IR using MIR format)."
It brought cyclic dependencies between LLVMCodeGen and LLVMMIR.

llvm-svn: 238007
2015-05-22 07:17:07 +00:00
Keno Fischer c780e8ebcc Make it easier to use DwarfContext with MCJIT
Summary:
This supersedes http://reviews.llvm.org/D4010, hopefully properly
dealing with the JIT case and also adds an actual test case.
DwarfContext was basically already usable for the JIT (and back when
we were overwriting ELF files it actually worked out of the box by
accident), but in order to resolve relocations correctly it needs
to know the load address of the section.
Rather than trying to get this out of the ObjectFile or requiring
the user to create a new ObjectFile just to get some debug info,
this adds the capability to pass in that info directly.
As part of this I separated out part of the LoadedObjectInfo struct
from RuntimeDyld, since it is now required at a higher layer.

Reviewers: lhames, echristo

Reviewed By: echristo

Subscribers: vtjnash, friss, rafael, llvm-commits

Differential Revision: http://reviews.llvm.org/D6961

llvm-svn: 237961
2015-05-21 21:24:32 +00:00
Alex Lorenz c37baf82a9 Resubmit r237708 (MIR Serialization: print and parse LLVM IR using MIR format).
This commit is a 2nd attempt at committing the initial MIR serialization patch.
The first commit (r237708) made the incremental buildbots unstable and was 
reverted in r237730. The original commit didn't add a terminating null 
character to the LLVM IR source which was passed to LLParser, and this 
sometimes caused the test 'llvmIR.mir' to fail with a parsing error because 
the LLVM IR source didn't have a null character immediately after the end 
and thus LLLexer encountered some garbage characters that ultimately caused 
the error.

This commit also includes the other test fixes I committed in
r237712 (llc path fix) and r237723 (remove target triple) which
also got reverted in r237730.

--Original Commit Message--

MIR Serialization: print and parse LLVM IR using MIR format.

This commit is the initial commit for the MIR serialization project.
It creates a new library under CodeGen called 'MIR'. This new
library adds a new machine function pass that prints out the LLVM IR 
using the MIR format. This pass is then added as a last pass when a 
'stop-after' option is used in llc. The new library adds the initial 
functionality for parsing of MIR files as well. This commit also 
extends the llc tool so that it can recognize and parse MIR input files.

Reviewers: Duncan P. N. Exon Smith, Matthias Braun, Philip Reames

Differential Revision: http://reviews.llvm.org/D9616

llvm-svn: 237954
2015-05-21 20:54:45 +00:00
Rafael Espindola 0709a7bd1a Move alignment from MCSectionData to MCSection.
This starts merging MCSection and MCSectionData.

There are a few issues with the current split between MCSection and
MCSectionData.

* It optimizes the the not as important case. We want the production
of .o files to be really fast, but the split puts the information used
for .o emission in a separate data structure.

* The ELF/COFF/MachO hierarchy is not represented in MCSectionData,
leading to some ad-hoc ways to represent the various flags.

* It makes it harder to remember where each item is.

The attached patch starts merging the two by moving the alignment from
MCSectionData to MCSection.

Most of the patch is actually just dropping 'const', since
MCSectionData is mutable, but MCSection was not.

llvm-svn: 237936
2015-05-21 19:20:38 +00:00
Alexey Samsonov 7a18c06128 [DWARF parser] Make DWARF parser more robust against missing compile/type units.
DWARF standard claims that each compilation/type unit header in
.debug_info/.debug_types section must be followed by corresponding
compile/type unit DIE, possibly with its children. Two situations
are possible:

 * compile/type unit DIE is missing because DWARF producer failed to
   emit it.
 * DWARF parser failed to parse unit DIE correctly, for instance if it
   contains some unsupported attributes (see r237721, for instance).

In either of these cases, the library, and the tools that use it
(llvm-dwarfdump, llvm-symbolizer) should not crash. Insert appropriate
checks to protect against this.

llvm-svn: 237733
2015-05-19 21:54:32 +00:00
Alex Lorenz de1970fe66 Revert r237708 (MIR serialization) - incremental buildbots became unstable.
The incremental buildbots entered a pass-fail cycle where during the fail
cycle one of the tests from this commit fails for an unknown reason. I
have reverted this commit and will investigate the cause of this problem.

llvm-svn: 237730
2015-05-19 21:41:28 +00:00
Alex Lorenz c5e0d4d146 MIR Serialization: print and parse LLVM IR using MIR format.
This commit is the initial commit for the MIR serialization project.
It creates a new library under CodeGen called 'MIR'. This new
library adds a new machine function pass that prints out the LLVM IR 
using the MIR format. This pass is then added as a last pass when a 
'stop-after' option is used in llc. The new library adds the initial 
functionality for parsing of MIR files as well. This commit also 
extends the llc tool so that it can recognize and parse MIR input files.

Reviewers: Duncan P. N. Exon Smith, Matthias Braun, Philip Reames

Differential Revision: http://reviews.llvm.org/D9616

llvm-svn: 237708
2015-05-19 18:17:39 +00:00
Jim Grosbach 6f482000e9 MC: Clean up method names in MCContext.
The naming was a mish-mash of old and new style. Update to be consistent
with the new. NFC.

llvm-svn: 237594
2015-05-18 18:43:14 +00:00
Pete Cooper 81902a3ae4 Remove MCAssembler.h include from MCStreamer.h and fix users of MCStreamer.h
llvm-svn: 237483
2015-05-15 22:19:42 +00:00
Pete Cooper 3de83e4098 Remove 3 includes from MCInstrDesc.h and explicitly include them where needed
llvm-svn: 237481
2015-05-15 21:58:42 +00:00
Simon Atanasyan eeb2fa9877 [llvm-readobj] Teach llvm-readobj to print PT_MIPS_ABIFLAGS program header
llvm-svn: 237451
2015-05-15 15:59:22 +00:00
Douglas Katzman 9d08232e28 Reflow long lines of some LLVMBuild files
Differential Revision: http://reviews.llvm.org/D9752

llvm-svn: 237367
2015-05-14 15:38:27 +00:00
Justin Bogner d0ceebf160 InstrProf: Fix display of large numbers in llvm-cov
llvm-cov was truncating numbers that were larger than a particular
fixed width, which is as confusing as it is useless. Instead, we use
engineering notation with SI prefix for magnitude.

llvm-svn: 237307
2015-05-13 22:41:48 +00:00
Jordan Rose 0fa38b8f96 [llvm-bcanalyzer] Add -show-binary-blobs option.
-dump mode normally omits blob data that contains unprintable characters.
When -show-binary-blobs is passed, it unilaterally escapes all blobs,
allowing those with binary data to be displayed.

llvm-svn: 237276
2015-05-13 18:51:49 +00:00
Eric Christopher 824f42f209 Migrate existing backends that care about software floating point
to use the information in the module rather than TargetOptions.

We've had and clang has used the use-soft-float attribute for some
time now so have the backends set a subtarget feature based on
a particular function now that subtargets are created based on
functions and function attributes.

For the one middle end soft float check go ahead and create
an overloadable TargetLowering::useSoftFloat function that
just checks the TargetSubtargetInfo in all cases.

Also remove the command line option that hard codes whether or
not soft-float is set by using the attribute for all of the
target specific test cases - for the generic just go ahead and
add the attribute in the one case that showed up.

llvm-svn: 237079
2015-05-12 01:26:05 +00:00
Alexey Samsonov d923508782 Fix input validation issues in llvm-as/llvm-dis
Summary:
1. llvm-as/llvm-dis tools do not check for input filename length.
2. llvm-dis does not verify the `Streamer` variable against `nullptr` properly, so the `M` variable could be uninitialized (e.g. if the input file does not exist) leading to null dref.

Patch by Lenar Safin!

Reviewers: samsonov

Reviewed By: samsonov

Subscribers: samsonov, llvm-commits

Differential Revision: http://reviews.llvm.org/D9584

llvm-svn: 237051
2015-05-11 21:20:20 +00:00
Simon Atanasyan 8eb9d1bf12 [yaml2elf] Replace error message by assert call in writeSectionContent methods
Now caller of ELFState::writeSectionContent() methods is responsible to check
a section type and selects an appropriate writeSectionContent method.
So unexpected section type inside writeSectionContent method indicates
a wrong usage of the method and should be guarded by assert.

llvm-svn: 236808
2015-05-08 07:05:04 +00:00
Simon Atanasyan 40e7eb166a [llvm-readobj/obj2yaml/yaml2obj] Support MIPS machine ELF header flags
llvm-svn: 236807
2015-05-08 07:04:59 +00:00
Simon Atanasyan 04d9e653ed [obj2yaml/yaml2obj] Add SHT_MIPS_ABIFLAGS section support
This change adds support for the SHT_MIPS_ABIFLAGS section
reading/writing to the obj2yaml and yaml2obj tools.

llvm-svn: 236738
2015-05-07 15:40:48 +00:00
Simon Atanasyan c914de2770 [llvm-readobj] Print .MIPS.abiflags section content
This change adds new flag -mips-abi-flags to the llvm-readobj. This flag
forces printing of .MIPS.abiflags section content.

https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking#10.2.1._.MIPS.abiflags

llvm-svn: 236737
2015-05-07 15:40:35 +00:00
Simon Atanasyan 67bdc799a7 [llvm-readobj/obj2yaml/yaml2obj] Support more MIPS ELF header flags
llvm-svn: 236728
2015-05-07 14:04:44 +00:00
Akira Hatanaka 3058d0f080 Let llc and opt override "-target-cpu" and "-target-features" via command line
options.

This commit fixes a bug in llc and opt where "-mcpu" and "-mattr" wouldn't
override function attributes "-target-cpu" and "-target-features" in the IR.

Differential Revision: http://reviews.llvm.org/D9537

llvm-svn: 236677
2015-05-06 23:54:14 +00:00
Akira Hatanaka 32b3760cf3 Factor out a function which determines the cpu and feature strings based on
command line options -mcpu and -mattr. NFC.

llvm-svn: 236671
2015-05-06 23:49:24 +00:00
Zachary Turner c007aa41b6 A few fixes for llvm-symbolizer on Windows.
Specifically, this patch correctly respects the -demangle option,
and additionally adds a hidden --relative-address option allows
input addresses to be relative to the module load address instead
of absolute addresses into the image.

llvm-svn: 236653
2015-05-06 22:26:30 +00:00
Lang Hames cd68eba3b9 [Orc] Reapply r236465 with fixes for the MSVC bots.
llvm-svn: 236506
2015-05-05 17:37:18 +00:00
Daniel Sanders 85202063c0 [bugpoint] Increase default memory limit to 400MB to fix bugpoint tests.
I tracked down the bug to an unchecked malloc in SmallVectorBase::grow_pod().
This malloc is returning NULL on my machine when running under bugpoint but not
when -enable-valgrind is given.

llvm-svn: 236504
2015-05-05 16:29:40 +00:00
Lang Hames ac31a1f141 [Orc] Revert r236465 - It broke the Windows bots.
Looks like the usual missing explicit move-constructor issue with MSVC. I should
have a fix shortly.

llvm-svn: 236472
2015-05-04 23:30:01 +00:00
Pete Cooper b5445cce73 Add TransformUtils dependency to lli.
After r236465, Orc uses ValueMaterializer and so needs to link against TransformUtils to get the ValueMaterializer::anchor().

llvm-svn: 236467
2015-05-04 22:33:39 +00:00
Lang Hames a68970dfd5 [Orc] Refactor the compile-on-demand layer to make module partitioning lazy,
and avoid cloning unused decls into every partition.

Module partitioning showed up as a source of significant overhead when I
profiled some trivial test cases. Avoiding the overhead of partitionging
for uncalled functions helps to mitigate this.

This change also means that it is no longer necessary to have a
LazyEmittingLayer underneath the CompileOnDemand layer, since the
CompileOnDemandLayer will not extract or emit function bodies until they are
called.

llvm-svn: 236465
2015-05-04 22:03:10 +00:00
Justin Bogner 65337d1f3a llvm-cov: Warn if object file is newer than profile
Looking at coverage with an out of date profile can be confusing.
Provide a little hint that something might be wrong.

llvm-svn: 236408
2015-05-04 04:09:38 +00:00
Zachary Turner e5cb269352 [llvm-pdbdump] Support dynamic load address and external symbols.
This patch adds the --load-address command line option to
llvm-pdbdump, which dumps all addresses assuming the module has
loaded at the specified address.

Additionally, this patch adds an option to llvm-pdbdump to support
dumping of public symbols (i.e. symbols with external linkage).

llvm-svn: 236342
2015-05-01 20:24:26 +00:00
Davide Italiano cd2514dca6 [Object] Teach Object and llvm-objdump about ".hidden"
Differential Revision:	http://reviews.llvm.org/D9416
Reviewed by:	rafael

llvm-svn: 236279
2015-04-30 23:08:53 +00:00
Richard Trieu 6ae37961a8 Fix -Wpessimizing-move warnings by removing std::move calls.
llvm-svn: 236278
2015-04-30 23:07:00 +00:00
Kevin Enderby 8972e48bc8 For llvm-objdump, with the -archive-headers and -macho options, use the -non-verbose
option to print the archive headers using raw numeric values.  Also add the -archive-member-offsets
for use with these to also trigger printing of the offset of the archive member from the start
of the archive.

llvm-svn: 236252
2015-04-30 20:30:42 +00:00
Duncan P. N. Exon Smith a9308c49ef IR: Give 'DI' prefix to debug info metadata
Finish off PR23080 by renaming the debug info IR constructs from `MD*`
to `DI*`.  The last of the `DIDescriptor` classes were deleted in
r235356, and the last of the related typedefs removed in r235413, so
this has all baked for about a week.

Note: If you have out-of-tree code (like a frontend), I recommend that
you get everything compiling and tests passing with the *previous*
commit before updating to this one.  It'll be easier to keep track of
what code is using the `DIDescriptor` hierarchy and what you've already
updated, and I think you're extremely unlikely to insert bugs.  YMMV of
course.

Back to *this* commit: I did this using the rename-md-di-nodes.sh
upgrade script I've attached to PR23080 (both code and testcases) and
filtered through clang-format-diff.py.  I edited the tests for
test/Assembler/invalid-generic-debug-node-*.ll by hand since the columns
were off-by-three.  It should work on your out-of-tree testcases (and
code, if you've followed the advice in the previous paragraph).

Some of the tests are in badly named files now (e.g.,
test/Assembler/invalid-mdcompositetype-missing-tag.ll should be
'dicompositetype'); I'll come back and move the files in a follow-up
commit.

llvm-svn: 236120
2015-04-29 16:38:44 +00:00
Duncan P. N. Exon Smith 5a490d0026 LTO: Add API to choose whether to embed uselists
Reverse libLTO's default behaviour for preserving use-list order in
bitcode, and add API for controlling it.  The default setting is now
`false` (don't preserve them), which is consistent with `clang`'s
default behaviour.

Users of libLTO should call `lto_codegen_should_embed_uselists(CG,true)`
prior to calling `lto_codegen_write_merged_modules()` whenever the
output file isn't part of the production workflow in order to reproduce
results with subsequent calls to `llc`.

(I haven't added tests since `llvm-lto` (the test tool for LTO) doesn't
support bitcode output, and even if it did: there isn't actually a good
way to test whether a tool has passed the flag.  If the order is already
"natural" (if the order will already round-trip) then no use-list
directives are emitted at all.  At some point I'll circle back to add
tests to `llvm-as` (etc.) that they actually respect the flag, at which
point I can somehow add a test here as well.)

llvm-svn: 235943
2015-04-27 23:38:54 +00:00
Zachary Turner 5590935499 [llvm-symbolizer] Link DebugInfoPDB for the autoconf build
llvm-svn: 235909
2015-04-27 19:41:40 +00:00
Zachary Turner 20dbd0d0de Make llvm-symbolizer work on Windows.
Differential Revision: http://reviews.llvm.org/D9234
Reviewed By: Alexey Samsonov

llvm-svn: 235900
2015-04-27 17:19:51 +00:00
Patrik Hagglund 97d6672bb9 Remove unused variable, found with gcc-5.1 -Wunused-variable.
The variable, MachOSectionTypes, seems to have been unused since its
introduction in r178679.

llvm-svn: 235863
2015-04-27 11:03:53 +00:00
Lang Hames 9ff69c8f4d [AsmPrinter] Make AsmPrinter's OutStreamer member a unique_ptr.
AsmPrinter owns the OutStreamer, so an owning pointer makes sense here. Using a
reference for this is crufty.

llvm-svn: 235752
2015-04-24 19:11:51 +00:00
Zachary Turner 6489d7b949 Move DIContext.h to common DebugInfo location.
This will enable us to create a PDBContext so as to expose some
amount of debug info functionality through a common interace.

Differential Revision: http://reviews.llvm.org/D9205
Reviewed by: Alexey Samsonov

llvm-svn: 235612
2015-04-23 17:37:47 +00:00
Adhemerval Zanella 9f3dbff08a Support arm32 R_ARM_V4BX relocation format
ARM32 ELF R_ARM_V4BX relocation format is a special relocation type
that records the location of an ARMv4t BX instruction to enable a
static linker to generate ARMv4 compatible instructions.  This
relocation does not contain a reference symbol.

This patch enabled its creation by removing the requeriment of a
relocation symbol target in ELFState<ELFT>::writeSectionContent.

llvm-svn: 235513
2015-04-22 15:26:43 +00:00
Duncan P. N. Exon Smith e868123d8f Linker: Add flag to override linkage rules
Add a flag to lib/Linker (and `llvm-link`) to override linkage rules.
When set, the functions in the source module *always* replace those in
the destination module.

The `llvm-link` option is `-override=abc.ll`.  All the "regular" modules
are loaded and linked first, followed by the `-override` modules.  This
is useful for debugging workflows where some subset of the module (e.g.,
a single function) is extracted into a separate file where it's
optimized differently, before being merged back in.

Patch by Luqman Aden!

llvm-svn: 235473
2015-04-22 04:11:00 +00:00
Duncan P. N. Exon Smith 0de129d421 llvm-link: Factor out loop over input files, NFC
Factor the loop for linking input files together into a combined module
into a separate function.  This is in preparation for an upcoming patch
that runs the logic twice.

Patch by Luqman Aden!

llvm-svn: 235472
2015-04-22 04:08:22 +00:00
Duncan P. N. Exon Smith 60635e39b6 DebugInfo: Drop rest of DIDescriptor subclasses
Delete the remaining subclasses of (the already deleted) `DIDescriptor`.
Part of PR23080.

llvm-svn: 235404
2015-04-21 18:44:06 +00:00
JF Bastien f87e20dd87 bugpoint Enhancement.
Summary:
This patch adds two flags to `bugpoint`: "-replace-funcs-with-null" and "-disable-pass-list-reduction".

When "-replace-funcs-with-null" is specified, bugpoint will, instead of simply deleting function bodies, replace all uses of functions and then will delete functions completely from the test module, correctly handling aliasing and @llvm.used && @llvm.compiler.used. This part was conceived while trying to debug the PNaCl IR simplification passes, which don't allow undefined functions (ie no declarations).

With "-disable-pass-list-reduction", bugpoint won't try to reduce the set of passes causing the "crash". This is needed in cases where one is trying to debug an issue inside the PNaCl IR simplification passes which is causing an PNaCl ABI verification error, for example.

Reviewers: jfb

Reviewed By: jfb

Subscribers: jfb, llvm-commits

Differential Revision: http://reviews.llvm.org/D8555

llvm-svn: 235362
2015-04-20 23:42:22 +00:00