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Commit Graph

4863 Commits

Author SHA1 Message Date
Rafael Espindola
1650ee4487 Use early returns and factor the object::Binary creation.
llvm-svn: 200484
2014-01-30 19:24:00 +00:00
Saleem Abdulrasool
bb3d3fdcb2 tools: fix Twine abuse
utohexstr provides a temporary string, making it unsafe to use with the Twine
interface which will not copy the string.  Switch to using std::string.

llvm-svn: 200457
2014-01-30 06:19:27 +00:00
Saleem Abdulrasool
8c7875baee tools: remove unnecessary typename
This is acceptted by clang and gcc, but MSVC seems to balk at it.  As it is
unneeded, simply drop it.  Fixes MSVC buildbots.

llvm-svn: 200456
2014-01-30 06:19:24 +00:00
Saleem Abdulrasool
cfb7e2a038 tools: repair Windows build
exp2 is not available on Windows.  Fortunately, we are calculating powers of 2
with expontents within the range of [4,12].  Simply use an equivalent bitshift
operation to repair compilation with MSVC which does not provide this standard
function.

llvm-svn: 200454
2014-01-30 05:20:31 +00:00
Saleem Abdulrasool
b264887853 tools: add support for decoding ARM attributes
Enhance the ARM specific parsing support in llvm-readobj to support attributes.
This allows for simpler tests to validate encoding of the build attributes as
specified in the ARM ELF specification.

llvm-svn: 200450
2014-01-30 04:46:33 +00:00
Rafael Espindola
6148a226d5 Simplify the handling of iterators in ObjectFile.
None of the object file formats reported error on iterator increment. In
retrospect, that is not too surprising: no object format stores symbols or
sections in a linked list or other structure that requires chasing pointers.
As a consequence, all error checking can be done on begin() and end().

This reduces the text segment of bin/llvm-readobj in my machine from 521233 to
518526 bytes.

llvm-svn: 200442
2014-01-30 02:49:50 +00:00
Rafael Espindola
79d6988d0d Fix TLS handling in ELF's getAddress and llvm-nm to print 'D' for it.
llvm-svn: 200433
2014-01-30 00:42:30 +00:00
Justin Bogner
d84fb7d44a llvm-cov: Accept the long forms of gcov options
This is a bit imperfect, as these options don't show up in the help as
is and single dash variants are accepted, which differs from gcov.
Unfortunately, this seems to be as good as it gets with the cl::opt
machinery, so it'll do as an incremental step.

llvm-svn: 200419
2014-01-29 21:31:47 +00:00
Justin Bogner
f2934ce45c llvm-cov: Improve help message text
This Properly capitalizes and clarifies the help output from
llvm-cov. It also puts the llvm-only / non-gcov-compatible options in
their own category.

llvm-svn: 200418
2014-01-29 21:31:45 +00:00
Justin Bogner
25e1dc7514 llvm-cov: Expect a source file as a positional parameter
Currently, llvm-cov isn't command-line compatible with gcov, which
accepts a source file name as its first parameter and infers the gcno
and gcda file names from that. This change keeps our -gcda and -gcno
options available for convenience in overriding this behaviour, but
adds the required parameter and inference behaviour as a compatible
default.

llvm-svn: 200417
2014-01-29 21:31:34 +00:00
Rafael Espindola
fc2dbfa864 Normalize the style in llvm-nm.cpp.
It had grown fairly inconsistent. I am about to change it quite a bit to also
use the object api when handling IR files.

llvm-svn: 200374
2014-01-29 04:56:19 +00:00
Rafael Espindola
9ade36c920 Make createObjectFile's signature a bit less error prone.
This will be better with c++11, but right now file_magic converts to bool,
which makes the api really easy to misuse.

llvm-svn: 200357
2014-01-29 00:02:26 +00:00
David Woodhouse
5d0b529d58 Change MCStreamer EmitInstruction interface to take subtarget info
llvm-svn: 200345
2014-01-28 23:12:42 +00:00
NAKAMURA Takumi
5a6064de4e [CMake] Put lli-child-target into the Folder "Misc".
llvm-svn: 200297
2014-01-28 09:43:41 +00:00
Tobias Grosser
81ff43601d Do not reference llvm-gcc from bugpoint
Reiterating: llvm-gcc is dead since a long time.
llvm-svn: 200220
2014-01-27 13:44:58 +00:00
Rui Ueyama
f81e57de36 Rename IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA.
editbin.exe and link.exe both accepts /highentropyva option to set this bit, so
doing s/VIRTUAL_ADDRESS/VA/ should make sense.

llvm-svn: 200191
2014-01-27 04:22:24 +00:00
Rafael Espindola
bfdd58b802 Pass a MCSubtargetInfo down to the TargetStreamer creation.
With this the target streamers will be able to know the target features that
are in use.

llvm-svn: 200135
2014-01-26 06:38:58 +00:00
Rui Ueyama
3422ecd95a COFF: Add a missing enum value for high entropy ASLR.
That bit is not documented in the PE/COFF spec published by Microsoft, so we
don't know the official name of it. I named this bit
IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VIRTUAL_ADDRESS because the bit is
reported as "high entropy virtual address" by dumpbin.exe,

llvm-svn: 200121
2014-01-26 05:05:23 +00:00
Rui Ueyama
e1a4c7b4e3 llvm-readobj: add support for PE32+ (Windows 64 bit executable).
PE32+ supports 64 bit address space, but the file format remains 32 bit.
So its file format is pretty similar to PE32 (32 bit executable). The
differences compared to PE32 are (1) the lack of "BaseOfData" field and
(2) some of its data members are 64 bit.

In this patch, I added a new member function to get a PE32+ Header object to
COFFObjectFile class and made llvm-readobj to use it.

llvm-svn: 200117
2014-01-26 04:15:52 +00:00
Mark Seaborn
4146b9618e Fix "llvm-objdump -d -r" to show relocations inline for ELF files
This fixes a regression introduced by r182908, which broke
llvm-objdump's ability to display relocations inline in a disassembly
dump for ELF object files.

That change removed a SectionRelocMap from Object/ELF.h, which we
recreate in llvm-objdump.cpp.

I discovered this regression via an out-of-tree test
(test/NaCl/X86/pnacl-hides-sandbox-x86-64.ll) which used llvm-objdump.

Note that the "Unknown" string in the test output on i386 isn't quite
right, but this appears to be a pre-existing bug.

Differential Revision: http://llvm-reviews.chandlerc.com/D2559

llvm-svn: 200090
2014-01-25 17:38:19 +00:00
Mark Seaborn
29b599cba2 llvm-objdump: Some style cleanups to follow LLVM coding style
Rename "ec" to "EC", and rename some iterators.

Then fix whitespace using clang-format-diff.

(As requested in http://llvm-reviews.chandlerc.com/D2559)

Differential Revision: http://llvm-reviews.chandlerc.com/D2594

llvm-svn: 200053
2014-01-25 00:32:01 +00:00
Rafael Espindola
4ff697089b Fix c++03 build.
llvm-svn: 200042
2014-01-24 21:52:44 +00:00
Rafael Espindola
a11df1035e Make ObjectFile ownership of the MemoryBuffer optional.
This allows llvm-ar to mmap the input files only once.

llvm-svn: 200040
2014-01-24 21:32:21 +00:00
Alp Toker
1c4b33e8e5 Fix known typos
Sweep the codebase for common typos. Includes some changes to visible function
names that were misspelt.

llvm-svn: 200018
2014-01-24 17:20:08 +00:00
Alp Toker
6017979796 Report lli remote IO errors consistently
This enables IO error reports in both the child and server processes.

The scheme still isn't entirely satisfactory and output is jumbled but it beats
having no output at all. This will hopefully unblock ARM support (PR18057).

llvm-svn: 200017
2014-01-24 17:18:52 +00:00
Alp Toker
c22b245580 lli: Factor portable messaging into a new RPCChannel facility
The client and server now use a single unified low-level RPC core built around
LLVM's existing cross-platform abstractions.

llvm-svn: 199947
2014-01-23 22:19:45 +00:00
Alp Toker
57bf114f06 Remove unused include following r199929
llvm-svn: 199930
2014-01-23 20:01:21 +00:00
Alp Toker
5041573a0f Replace the interim lli build fix with something cleaner
Eliminates the LLI_BUILDING_CHILD build hack from r199885.

Also add a FIXME to remove code that tricks the tests into passing when the
feature fails to work. Please don't do stuff like this, the tests exist for a
reason!

llvm-svn: 199929
2014-01-23 19:57:16 +00:00
Juergen Ributzka
bf21069834 Add target analysis passes to the codegen pipeline for MCJIT.
This patch adds the target analysis passes (usually TargetTransformInfo) to the
codgen pipeline. We also expose now the AddAnalysisPasses method through the C
API, because the optimizer passes would also benefit from better target-specific
cost models.

Reviewed by Andrew Kaylor

llvm-svn: 199926
2014-01-23 19:23:28 +00:00
NAKAMURA Takumi
b7e8a92534 Windows/ChildTarget.inc: LLIChildTarget::allocate() has gone since r199881.
llvm-svn: 199889
2014-01-23 12:55:05 +00:00
Alp Toker
51693ca2c4 Interim build fix for Makefiles
Looks like some parts still need detangling. Let's see if this holds for now.

llvm-svn: 199885
2014-01-23 11:26:37 +00:00
Alp Toker
fc7b0fd0dc Prospective Makefile build fix
llvm-svn: 199882
2014-01-23 11:14:00 +00:00
Alp Toker
7be4416876 Refactor lli-child-target to remove duplicated code
Eliminate the copies LLVM's System mmap and cache invalidation code. These were
slowly drifting away from the original version, and moreover the copied code
was a dead end in terms of portability.

We now statically link to Support but in practice with stripping this adds next
to no weight to the resultant binary.

Also avoid installing lli-child-target to the user's $PATH. It's not meant to
be run directly.

llvm-svn: 199881
2014-01-23 11:04:42 +00:00
Alp Toker
03e4f23b0c Tweak r199835 to use can_execute() instead of exists()
The execution code path crashes if it can't execute the binary so we might as
well take precautions here.

llvm-svn: 199844
2014-01-22 22:17:51 +00:00
Alp Toker
c7f817a228 Eliminate inappropriate use of FindProgramByName() from lli
llvm-svn: 199835
2014-01-22 21:52:35 +00:00
Rafael Espindola
1968b85973 Don't open or fstat files twice in llvm-ar.
We still read/mmap them twice, but the fix for that is a bit more complex.

llvm-svn: 199815
2014-01-22 16:43:45 +00:00
Rafael Espindola
4157b2a6c1 Pass the computed magic to createBinary and createObjectFile if available.
identify_magic is not free, so we should avoid calling it twice. The argument
also makes it cheap for createBinary to just forward to createObjectFile.

llvm-svn: 199813
2014-01-22 16:04:52 +00:00
NAKAMURA Takumi
9f9c03394d Whitespace.
llvm-svn: 199785
2014-01-22 03:12:43 +00:00
Rafael Espindola
a7de95d3e7 Change createObjectFile to return an ErrorOr.
llvm-svn: 199776
2014-01-22 00:14:49 +00:00
Rafael Espindola
9d9569b657 Be a bit more consistent about using ErrorOr when constructing Binary objects.
The constructors of classes deriving from Binary normally take an error_code
as an argument to the constructor. My original intent was to change them
to have a trivial constructor and move the initial parsing logic to a static
method returning an ErrorOr. I changed my mind because:

* A constructor with an error_code out parameter is extremely convenient from
  the implementation side. We can incrementally construct the object and give
  up when we find an error.
* It is very efficient when constructing on the stack or when there is no
  error. The only inefficient case is where heap allocating and an error is
  found (we have to free the memory).

The result is that this is a much smaller patch. It just standardizes the
create* helpers to return an ErrorOr.

Almost no functionality change: The only difference is that this found that
we were trying to read past the end of COFF import library but ignoring the
error.

llvm-svn: 199770
2014-01-21 23:06:54 +00:00
Yunzhong Gao
12926dc854 Adding new LTO APIs to parse metadata nodes and extract linker options and
dependent libraries from a bitcode module.

Differential Revision: http://llvm-reviews.chandlerc.com/D2343

llvm-svn: 199759
2014-01-21 18:31:27 +00:00
Rafael Espindola
176488ad20 Rename these methods to match the style guide.
llvm-svn: 199751
2014-01-21 16:09:45 +00:00
Saleem Abdulrasool
cf1137c9ec tools: use 64-bit print specifier
Try to repair the ARM Cortex-A15 buildbot by using a more appropriate conversion
specifier.

llvm-svn: 199711
2014-01-21 04:31:29 +00:00
Saleem Abdulrasool
aae6a31cf3 tools: support decoding ARM EHABI opcodes in readobj
Add support to llvm-readobj to decode the actual opcodes.  The ARM EHABI opcodes
are a variable length instruction set that describe the operations required for
properly unwinding stack frames.

The primary motivation for this change is to ease the creation of tests for the
ARM EHABI object emission as well as the unwinding directive handling in the ARM
IAS.

Thanks to Logan Chien for an extra test case!

llvm-svn: 199708
2014-01-21 02:33:15 +00:00
NAKAMURA Takumi
3ca0898d9b Whitespace.
llvm-svn: 199667
2014-01-20 15:47:15 +00:00
Chandler Carruth
003ef14be1 [PM] Wire up the Verifier for the new pass manager and connect it to the
various opt verifier commandline options.

Mostly mechanical wiring of the verifier to the new pass manager.
Exercises one of the more unusual aspects of it -- a pass can be either
a module or function pass interchangably. If this is ever problematic,
we can make things more constrained, but for things like the verifier
where there is an "obvious" applicability at both levels, it seems
convenient.

This is the next-to-last piece of basic functionality left to make the
opt commandline driving of the new pass manager minimally functional for
testing and further development. There is still a lot to be done there
(notably the factoring into .def files to kill the current boilerplate
code) but it is relatively uninteresting. The only interesting bit left
for minimal functionality is supporting the registration of analyses.
I'm planning on doing that on top of the .def file switch mostly because
the boilerplate for the analyses would be significantly worse.

llvm-svn: 199646
2014-01-20 11:34:08 +00:00
Chandler Carruth
608f08d699 [PM] Make the verifier work independently of any pass manager.
This makes the 'verifyFunction' and 'verifyModule' functions totally
independent operations on the LLVM IR. It also cleans up their API a bit
by lifting the abort behavior into their clients and just using an
optional raw_ostream parameter to control printing.

The implementation of the verifier is now just an InstVisitor with no
multiple inheritance. It also is significantly more const-correct, and
hides the const violations internally. The two layers that force us to
break const correctness are building a DomTree and dispatching through
the InstVisitor.

A new VerifierPass is used to implement the legacy pass manager
interface in terms of the other pieces.

The error messages produced may be slightly different now, and we may
have slightly different short circuiting behavior with different usage
models of the verifier, but generally everything works equivalently and
this unblocks wiring the verifier up to the new pass manager.

llvm-svn: 199569
2014-01-19 02:22:18 +00:00
Rui Ueyama
035830cabc llvm-objdump/COFF: Print ordinal base number.
llvm-svn: 199518
2014-01-17 22:02:24 +00:00
Quentin Colombet
b42dbc5117 [opt][PassInfo] Allow opt to run passes that need target machine.
When registering a pass, a pass can now specify a second construct that takes as
argument a pointer to TargetMachine.
The PassInfo class has been updated to reflect that possibility.
If such a constructor exists opt will use it instead of the default constructor
when instantiating the pass.

Since such IR passes are supposed to be rare, no specific support has been
added to this commit to allow an easy registration of such a pass.
In other words, for such pass, the initialization function has to be
hand-written (see CodeGenPrepare for instance).

Now, codegenprepare can be tested using opt:
opt -codegenprepare -mtriple=mytriple input.ll

llvm-svn: 199430
2014-01-16 21:44:34 +00:00
Rui Ueyama
47b85645fb Fix style issues.
llvm-svn: 199423
2014-01-16 20:57:55 +00:00
Rui Ueyama
6e86a3a233 llvm-objdump/COFF: Print DLL name in the export table header.
llvm-svn: 199422
2014-01-16 20:50:34 +00:00
Ed Maste
0234b50a22 llvm-symbolizer: make mangled name heuristic apply to all symbols
PR: http://llvm.org/pr18431
Review: http://llvm-reviews.chandlerc.com/D2552
llvm-svn: 199404
2014-01-16 17:25:12 +00:00
Quentin Colombet
8590699ba0 Revert r199361: Now, the sanitizer got the change
llvm-svn: 199362
2014-01-16 07:29:07 +00:00
Quentin Colombet
fc6f8deb99 [LTO] Modify lto.exports to force the sanitizer to rebuilt LTO.exports
llvm-svn: 199361
2014-01-16 07:14:01 +00:00
Rui Ueyama
e636e9fccd llmv-objdump/COFF: Print export table contents.
This patch adds the capability to dump export table contents. An example
output is this:

  Export Table:
   Ordinal      RVA  Name
         5   0x2008  exportfn1
         6   0x2010  exportfn2

By adding this feature to llvm-objdump, we will be able to use it to check
export table contents in LLD's tests. Currently we are doing binary
comparison in the tests, which is fragile and not readable to humans.

llvm-svn: 199358
2014-01-16 07:05:49 +00:00
Rui Ueyama
3da161096a llvm-objdump: Don't print "Import table:" header if there's no import table.
If a binary does not depend on any DLL, it does not contain import table at
all. Printing the section title without contents looks wrong, so we shouldn't
print it in that case.

llvm-svn: 199340
2014-01-15 23:46:18 +00:00
Quentin Colombet
fa288f1121 [LTO] Add a hook to map LLVM diagnostics into the clients of LTO.
Add a hook in the C API of LTO so that clients of the code generator can set
their own handler for the LLVM diagnostics.
The handler is defined like this:
typedef void (*lto_diagnostic_handler_t)(lto_codegen_diagnostic_severity_t
severity, const char *diag, void *ctxt)
- severity says how bad this is.
- diag is a string that contains the diagnostic message.
- ctxt is the registered context for this handler.

This hook is more general than the lto_get_error_message, since this function
keeps only the latest message and can only be queried when something went wrong
(no warning for instance).

<rdar://problem/15517596>

llvm-svn: 199338
2014-01-15 22:04:35 +00:00
Rafael Espindola
966babad9e Return an ErrorOr<Binary *> from createBinary.
I did write a version returning ErrorOr<OwningPtr<Binary> >, but it is too
cumbersome to use without std::move. I will keep the patch locally and submit
when we switch to c++11.

llvm-svn: 199326
2014-01-15 19:37:43 +00:00
NAKAMURA Takumi
aa02be00a1 Whitespace.
llvm-svn: 199305
2014-01-15 08:21:38 +00:00
Rafael Espindola
635c9e68f4 Check the error code and save a call to sys::fs::exists.
llvm-svn: 199293
2014-01-15 04:49:50 +00:00
Rafael Espindola
d818632103 Make parseBitcodeFile return an ErrorOr<Module *>.
llvm-svn: 199279
2014-01-15 01:08:23 +00:00
Rafael Espindola
32f031d9a5 Return an error_code from materializeAllPermanently.
llvm-svn: 199275
2014-01-14 23:51:27 +00:00
Renato Golin
d5e9d999ee Fix Remote MCJIT on Windows
llvm-svn: 199268
2014-01-14 22:59:11 +00:00
Renato Golin
5e0ba8b8db Sanitize MCJIT remote execution
MCJIT remote execution (ChildTarget+RemoteTargetExternal) protocol was in
dire need of refactoring. It was fail-prone, had no error reporting and
implemented the same message logic on every single function.

This patch rectifies it, and makes it work on ARM, where it was randomly
failing. Other architectures shall profit from this change as well, making
their buildbots and releases more reliable.

llvm-svn: 199261
2014-01-14 22:43:43 +00:00
Duncan P. N. Exon Smith
bb847bd59e Reapply "LTO: add API to set strategy for -internalize"
Reapply r199191, reverted in r199197 because it carelessly broke
Other/link-opts.ll.  The problem was that calling
createInternalizePass("main") would select
createInternalizePass(bool("main")) instead of
createInternalizePass(ArrayRef<const char *>("main")).  This commit
fixes the bug.

The original commit message follows.

Add API to LTOCodeGenerator to specify a strategy for the -internalize
pass.

This is a new attempt at Bill's change in r185882, which he reverted in
r188029 due to problems with the gold linker.  This puts the onus on the
linker to decide whether (and what) to internalize.

In particular, running internalize before outputting an object file may
change a 'weak' symbol into an internal one, even though that symbol
could be needed by an external object file --- e.g., with arclite.

This patch enables three strategies:

- LTO_INTERNALIZE_FULL: the default (and the old behaviour).
- LTO_INTERNALIZE_NONE: skip -internalize.
- LTO_INTERNALIZE_HIDDEN: only -internalize symbols with hidden
  visibility.

LTO_INTERNALIZE_FULL should be used when linking an executable.

Outputting an object file (e.g., via ld -r) is more complicated, and
depends on whether hidden symbols should be internalized.  E.g., for
ld -r, LTO_INTERNALIZE_NONE can be used when -keep_private_externs, and
LTO_INTERNALIZE_HIDDEN can be used otherwise.  However,
LTO_INTERNALIZE_FULL is inappropriate, since the output object file will
eventually need to link with others.

lto_codegen_set_internalize_strategy() sets the strategy for subsequent
calls to lto_codegen_write_merged_modules() and lto_codegen_compile*().

<rdar://problem/14334895>

llvm-svn: 199244
2014-01-14 18:52:17 +00:00
Rafael Espindola
878f612c22 Handle UIDs and GIDs that don't fit in 6 decimal places.
Newer unix systems have 32 bit uid and gid types, but the archive format was
not updated. Fortunately, these fields are not normally used. Just truncate
the data to fit in 6 chars.

llvm-svn: 199223
2014-01-14 17:02:09 +00:00
NAKAMURA Takumi
068c8352f7 Revert r199191, "LTO: add API to set strategy for -internalize"
Please update also Other/link-opts.ll, in next time.

llvm-svn: 199197
2014-01-14 09:40:18 +00:00
Duncan P. N. Exon Smith
95dadb39e4 LTO: add API to set strategy for -internalize
Add API to LTOCodeGenerator to specify a strategy for the -internalize
pass.

This is a new attempt at Bill's change in r185882, which he reverted in
r188029 due to problems with the gold linker.  This puts the onus on the
linker to decide whether (and what) to internalize.

In particular, running internalize before outputting an object file may
change a 'weak' symbol into an internal one, even though that symbol
could be needed by an external object file --- e.g., with arclite.

This patch enables three strategies:

- LTO_INTERNALIZE_FULL: the default (and the old behaviour).
- LTO_INTERNALIZE_NONE: skip -internalize.
- LTO_INTERNALIZE_HIDDEN: only -internalize symbols with hidden
  visibility.

LTO_INTERNALIZE_FULL should be used when linking an executable.

Outputting an object file (e.g., via ld -r) is more complicated, and
depends on whether hidden symbols should be internalized.  E.g., for
ld -r, LTO_INTERNALIZE_NONE can be used when -keep_private_externs, and
LTO_INTERNALIZE_HIDDEN can be used otherwise.  However,
LTO_INTERNALIZE_FULL is inappropriate, since the output object file will
eventually need to link with others.

lto_codegen_set_internalize_strategy() sets the strategy for subsequent
calls to lto_codegen_write_merged_modules() and lto_codegen_compile*().

<rdar://problem/14334895>

llvm-svn: 199191
2014-01-14 06:37:26 +00:00
Chandler Carruth
98adff6224 [PM] Split DominatorTree into a concrete analysis result object which
can be used by both the new pass manager and the old.

This removes it from any of the virtual mess of the pass interfaces and
lets it derive cleanly from the DominatorTreeBase<> template. In turn,
tons of boilerplate interface can be nuked and it turns into a very
straightforward extension of the base DominatorTree interface.

The old analysis pass is now a simple wrapper. The names and style of
this split should match the split between CallGraph and
CallGraphWrapperPass. All of the users of DominatorTree have been
updated to match using many of the same tricks as with CallGraph. The
goal is that the common type remains the resulting DominatorTree rather
than the pass. This will make subsequent work toward the new pass
manager significantly easier.

Also in numerous places things became cleaner because I switched from
re-running the pass (!!! mid way through some other passes run!!!) to
directly recomputing the domtree.

llvm-svn: 199104
2014-01-13 13:07:17 +00:00
Chandler Carruth
ee051af6e2 [cleanup] Move the Dominators.h and Verifier.h headers into the IR
directory. These passes are already defined in the IR library, and it
doesn't make any sense to have the headers in Analysis.

Long term, I think there is going to be a much better way to divide
these matters. The dominators code should be fully separated into the
abstract graph algorithm and have that put in Support where it becomes
obvious that evn Clang's CFGBlock's can use it. Then the verifier can
manually construct dominance information from the Support-driven
interface while the Analysis library can provide a pass which both
caches, reconstructs, and supports a nice update API.

But those are very long term, and so I don't want to leave the really
confusing structure until that day arrives.

llvm-svn: 199082
2014-01-13 09:26:24 +00:00
Chandler Carruth
44c680cdaf [cleanup] Add a missing include exposed by resorting other includes.
Should fix the build.

llvm-svn: 199081
2014-01-13 08:09:47 +00:00
Chandler Carruth
03b6c941a3 Re-sort #include lines again, prior to moving headers around.
llvm-svn: 199080
2014-01-13 08:04:33 +00:00
Chandler Carruth
d090eb21c2 [PM] Wire up support for writing bitcode with new PM.
This moves the old pass creation functionality to its own header and
updates the callers of that routine. Then it adds a new PM supporting
bitcode writer to the header file, and wires that up in the opt tool.
A test is added that round-trips code into bitcode and back out using
the new pass manager.

llvm-svn: 199078
2014-01-13 07:38:24 +00:00
Chandler Carruth
64f26e1076 [PM] Wire up support for printing assembly output from the opt command.
This lets us round-trip IR in the expected manner with the opt tool.

llvm-svn: 199075
2014-01-13 05:16:45 +00:00
Chandler Carruth
cdf6df5a95 [PM] Add an enum for describing the desired output strategy, and run
that through the interface rather than a simple bool. This should allow
starting to wire up real output to round-trip IR through opt with the
new pass manager.

llvm-svn: 199071
2014-01-13 03:08:40 +00:00
Chandler Carruth
2fbea03f0f [PM] Add module and function printing passes for the new pass manager.
This implements the legacy passes in terms of the new ones. It adds
basic testing using explicit runs of the passes. Next up will be wiring
the basic output mechanism of opt up when the new pass manager is
engaged unless bitcode writing is requested.

llvm-svn: 199049
2014-01-12 12:15:39 +00:00
Chandler Carruth
39fa1c4743 [PM] Update one user of the printing pass API that I missed.
llvm-svn: 199046
2014-01-12 11:39:04 +00:00
Chandler Carruth
613d3c5c3d [PM] Simplify the interface exposed for IR printing passes.
Nothing was using the ability of the pass to delete the raw_ostream it
printed to, and nothing was trying to pass it a pointer to the
raw_ostream. Also, the function variant had a different order of
arguments from all of the others which was just really confusing. Now
the interface accepts a reference, doesn't offer to delete it, and uses
a consistent order. The implementation of the printing passes haven't
been updated with this simplification, this is just the API switch.

llvm-svn: 199044
2014-01-12 11:30:46 +00:00
Chandler Carruth
076d51813d [PM] Rename the IR printing pass header to a more generic and correct
name to match the source file which I got earlier. Update the include
sites. Also modernize the comments in the header to use the more
recommended doxygen style.

llvm-svn: 199041
2014-01-12 11:10:32 +00:00
Chandler Carruth
a3ab8c27ea [PM] Fix a bunch of bugs I spotted by inspection when working on this
code. Copious tests added to cover these cases.

llvm-svn: 199039
2014-01-12 10:02:02 +00:00
Chandler Carruth
4f430207ee [PM] Add support for parsing function passes and function pass manager
nests to the opt commandline support. This also showcases the
implicit-initial-manager support which will be most useful for testing.
There are several bugs that I spotted by inspection here that I'll fix
with test cases in subsequent commits.

llvm-svn: 199038
2014-01-12 09:34:22 +00:00
Chandler Carruth
e9252766d0 [PM] Actually nest pass managers correctly when parsing the pass
pipeline string. Add tests that cover this now that we have execution
dumping in the pass managers.

llvm-svn: 199005
2014-01-11 12:06:47 +00:00
Chandler Carruth
5a5a877cc2 [PM] Add names to passes under the new pass manager, and a debug output
mode that can be used to debug the execution of everything.

No support for analyses here, that will come later. This already helps
show parts of the opt commandline integration that isn't working. Tests
of that will start using it as the bugs are fixed.

llvm-svn: 199004
2014-01-11 11:52:05 +00:00
Chandler Carruth
c5861be643 [PM] Add (very skeletal) support to opt for running the new pass
manager. I cannot emphasize enough that this is a WIP. =] I expect it
to change a great deal as things stabilize, but I think its really
important to get *some* functionality here so that the infrastructure
can be tested more traditionally from the commandline.

The current design is looking something like this:

  ./bin/opt -passes='module(pass_a,pass_b,function(pass_c,pass_d))'

So rather than custom-parsed flags, there is a single flag with a string
argument that is parsed into the pass pipeline structure. This makes it
really easy to have nice structural properties that are very explicit.
There is one obvious and important shortcut. You can start off the
pipeline with a pass, and the minimal context of pass managers will be
built around the entire specified pipeline. This makes the common case
for tests super easy:

  ./bin/opt -passes=instcombine,sroa,gvn

But this won't introduce any of the complexity of the fully inferred old
system -- we only ever do this for the *entire* argument, and we only
look at the first pass. If the other passes don't fit in the pass
manager selected it is a hard error.

The other interesting aspect here is that I'm not relying on any
registration facilities. Such facilities may be unavoidable for
supporting plugins, but I have alternative ideas for plugins that I'd
like to try first. My plan is essentially to build everything without
registration until we hit an absolute requirement.

Instead of registration of pass names, there will be a library dedicated
to parsing pass names and the pass pipeline strings described above.
Currently, this is directly embedded into opt for simplicity as it is
very early, but I plan to eventually pull this into a library that opt,
bugpoint, and even Clang can depend on. It should end up as a good home
for things like the existing PassManagerBuilder as well.

There are a bunch of FIXMEs in the code for the parts of this that are
just stubbed out to make the patch more incremental. A quick list of
what's coming up directly after this:
- Support for function passes and building the structured nesting.
- Support for printing the pass structure, and FileCheck tests of all of
  this code.
- The .def-file based pass name parsing.
- IR priting passes and the corresponding tests.

Some obvious things that I'm not going to do right now, but am
definitely planning on as the pass manager work gets a bit further:
- Pull the parsing into library, including the builders.
- Thread the rest of the target stuff into the new pass manager.
- Wire support for the new pass manager up to llc.
- Plugin support.

Some things that I'd like to have, but are significantly lower on my
priority list. I'll get to these eventually, but they may also be places
where others want to contribute:
- Adding nice error reporting for broken pass pipeline descriptions.
- Typo-correction for pass names.

llvm-svn: 198998
2014-01-11 08:16:35 +00:00
Tom Roeder
1954800ba6 Space formatting fix for r198966.
llvm-svn: 198971
2014-01-10 23:17:39 +00:00
Tom Roeder
6ed65beaae Fixing build break: should be in the if statement, not outside.
llvm-svn: 198966
2014-01-10 22:55:25 +00:00
Tom Roeder
9b68196561 Restore the library dependency of LLVMgold on LTO; this was removed recently but
is needed for LLVMgold to load in ld.

llvm-svn: 198965
2014-01-10 22:48:35 +00:00
NAKAMURA Takumi
7f9f4d1b7d lli: Tweak CacheName not to contain DOS driveletter.
llvm-svn: 198929
2014-01-10 10:38:40 +00:00
NAKAMURA Takumi
f770ac39bf lli: LLIObjectCache: Use llvm::sys::path to get dirname.
llvm-svn: 198928
2014-01-10 10:38:34 +00:00
NAKAMURA Takumi
da4e382ace Whitespace.
llvm-svn: 198927
2014-01-10 10:38:28 +00:00
Lang Hames
a1f22f9a72 Fix accidental use of the exotic "std::string::back()" method. Turns out it's
new in C++11.

llvm-svn: 198853
2014-01-09 05:29:59 +00:00
Lang Hames
30a091cf50 Add an "-object-cache-dir=<string>" option to LLI. This option specifies the
root path to which object files managed by the LLIObjectCache instance should be
written. This option defaults to "", in which case objects are cached in the
same directory as the bitcode they are derived from.

The load-object-a.ll test has been rewritten to use this option to support
testing in environments where the test directory is not writable.

llvm-svn: 198852
2014-01-09 05:24:05 +00:00
David Blaikie
d9fe95178b llvm-dwarfdump: type unit dwo support
llvm-svn: 198850
2014-01-09 05:08:24 +00:00
Saleem Abdulrasool
1416d93593 llvm-readobj: address review comments for ARM EHABI printing
Rename bytecode to opcodes to make it more clear.  Change an impossible case to
llvm_unreachable instead.  Avoid allocation of a buffer by modifying the
PrintOpcodes iteration.

llvm-svn: 198848
2014-01-09 04:31:18 +00:00
Saleem Abdulrasool
a66068772d llvm-readobj: fix endianness
Explicitly handle endianness to ensure that bytes are read properly on
big-endian systems.

llvm-svn: 198847
2014-01-09 04:31:14 +00:00
Chandler Carruth
53468087f3 Put the functionality for printing a value to a raw_ostream as an
operand into the Value interface just like the core print method is.
That gives a more conistent organization to the IR printing interfaces
-- they are all attached to the IR objects themselves. Also, update all
the users.

This removes the 'Writer.h' header which contained only a single function
declaration.

llvm-svn: 198836
2014-01-09 02:29:41 +00:00
Lang Hames
0a2238104b Replace fstream use with raw_fd_ostream.
llvm-svn: 198821
2014-01-09 00:47:54 +00:00
Rafael Espindola
721b465b58 Use getError and remove the error_code operator.
llvm-svn: 198799
2014-01-08 22:03:39 +00:00
Rafael Espindola
2bdcb192ba Use -std=gnu99 in tools/llvm-c-test/CMakeLists.txt
With a current mingw (gcc 4.8.1) it looks like we hit some variation of

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40278

The end result is that off_t is not defined and the build fails without this
patch.

llvm-svn: 198749
2014-01-08 11:48:19 +00:00
Lang Hames
24d99bb391 Re-apply r196639: Add support for archives and object file caching under MCJIT.
I believe the bot failures on linux systems were due to overestimating the
alignment of object-files within archives, which are only guaranteed to be
two-byte aligned. I have reduced the alignment in
RuntimeDyldELF::createObjectImageFromFile accordingly.

llvm-svn: 198737
2014-01-08 04:09:09 +00:00
Saleem Abdulrasool
869aa34c78 llvm-readobj: add support for ARM EHABI unwind info
This adds some preliminary support for decoding ARM EHABI unwinding information.
The major functionality that remains from complete support is bytecode
translation.

Each Unwind Index Table is printed out as a separate entity along with its
section index, name, offset, and entries.

Each entry lists the function address, and if possible, the name, of the
function to which it corresponds.  The encoding model, personality routine or
index, and byte code is also listed.

llvm-svn: 198734
2014-01-08 03:28:09 +00:00
Chandler Carruth
7aa902a488 Move the LLVM IR asm writer header files into the IR directory, as they
are part of the core IR library in order to support dumping and other
basic functionality.

Rename the 'Assembly' include directory to 'AsmParser' to match the
library name and the only functionality left their -- printing has been
in the core IR library for quite some time.

Update all of the #includes to match.

All of this started because I wanted to have the layering in good shape
before I started adding support for printing LLVM IR using the new pass
infrastructure, and commandline support for the new pass infrastructure.

llvm-svn: 198688
2014-01-07 12:34:26 +00:00
Simon Atanasyan
3f84b60665 [Mips] Add support for DT_MIPS_RLD_MAP and DT_MIPS_PLTGOT dynamic
section tags to the llvm-readobj.

llvm-svn: 198561
2014-01-05 13:40:27 +00:00
Nico Weber
e7bb9e41e0 Port r198087 and r198089 (strip dead code by default) from make to cmake.
llvm-svn: 198198
2013-12-30 03:36:05 +00:00
Nico Weber
10bf32e628 Set LLVM_EXPORTED_SYMBOL_FILE in CMakeLists whose corresponding Makefiles do so.
(unittests/ExecutionEngine/JIT/CMakeLists.txt is still missing for now, since
it handles export files in a strange way: It generates a .exports file from a
.def file instead of the other way round.)

llvm-svn: 198183
2013-12-29 23:06:49 +00:00
Nico Weber
6711c182c4 EXPORTED_SYMBOL_FILE support for cmake
The cmake build didn't support EXPORTED_SYMBOL_FILE. Instead, it had a
Windows-only implementation in tools/lto/CMakeLists.txt, a linux-only
implementation in tools/gold/CMakeLists.txt, and a darwin-only implementation
in tools/clang/tools/libclang/CMakeLists.txt.

This attempts to consolidate these one-offs into a single place. Clients can now
just set LLVM_EXPORTED_SYMBOL_FILE and things (hopefully) Just Work, like in
the make build.

llvm-svn: 198136
2013-12-28 23:31:44 +00:00
Nico Weber
0b5179242e Strip dead code when linking by default with BFD ld (linux, ...) and ld64 (os x).
This reduces the size of clang-format from 22 MB to 1.8 MB, diagtool goes from
21 MB to 2.8 MB, libclang.so goes from 29 MB to 20 MB, etc.  The size of the
bin/ folder shrinks from 270 MB to 200 MB.

Targets that support plugins and don't already use EXPORTED_SYMBOL_FILE
(which libclang and libLTO already do) can set NO_DEAD_STRIP to opt out.

llvm-svn: 198087
2013-12-27 22:38:59 +00:00
NAKAMURA Takumi
c51a9bddf6 gold-plugin.cpp: Use form of <plugin-api.h>, since it is external header.
llvm-svn: 197997
2013-12-25 02:24:38 +00:00
NAKAMURA Takumi
7d51e452f3 llvm-config: Fix typo in help message introduced with r197664.
Thanks, Vinson Lee!

llvm-svn: 197996
2013-12-25 02:24:32 +00:00
Alexey Samsonov
5c96c8dca5 llvm-symbolizer: add --obj flag to specify a single object file that should be symbolized.
llvm-svn: 197988
2013-12-24 19:33:22 +00:00
NAKAMURA Takumi
8f5f8ba3a5 llvm-config: Show OBJROOT rather than OBJROOT/BUILD_MODE in MakefileStyle.
llvm-svn: 197818
2013-12-20 17:35:52 +00:00
NAKAMURA Takumi
0ab721b842 llvm-config: Use build_mode instead of LLVM_BUILDMODE. It should be equivalent in MakefileStyle.
llvm-svn: 197817
2013-12-20 17:35:46 +00:00
NAKAMURA Takumi
6d9f03d46c llvm-config: Don't show build tree with --obj-root for installed llvm-config. Show $(prefix) instead.
llvm-svn: 197684
2013-12-19 16:02:28 +00:00
NAKAMURA Takumi
b541cf83d2 llvm-config: Show build root instead of parent path in build tree with --obj-root for CMake multiconfig.
llvm-svn: 197683
2013-12-19 16:02:23 +00:00
Timur Iskhodzhanov
3d72e1e9e4 Teach the llvm-readobj COFF dumper to dump debug line tables from object files
Reviewed at http://llvm-reviews.chandlerc.com/D2425

llvm-svn: 197674
2013-12-19 11:37:14 +00:00
NAKAMURA Takumi
ca4f03760d llvm-config: Introduce --system-libs to print SYSTEM_LIBS, and deprecate SYSTEM_LIBS in --ldflags.
Although --system-libs is expected to use after --libs, it can be used alone.

  $ bin/llvm-config --ldflags
  -L/path/to/llvm/objroot/lib

  $ bin/llvm-config --libs object
  -lLLVMObject -lLLVMSupport

  $ bin/llvm-config --system-libs
    (Blank line. "all" is assumed but nothing is printed.)
  -lrt -ldl -ltinfo -lpthread -lz

  $ bin/llvm-config --ldflags --libs --system-libs object
  -L/path/to/llvm/objroot/lib
  -lLLVMObject -lLLVMSupport
  -lrt -ldl -ltinfo -lpthread -lz

It is reimplementation of r197380, and workaround for PR3347 and PR8449.

FIXME: Each LLVM component may have its dependent system libs.
llvm-svn: 197664
2013-12-19 08:46:36 +00:00
Yuchen Wu
a7b83f0a43 llvm-cov: Added -f option for function summaries.
Similar to the file summaries, the function summaries output line,
branching and call statistics. The file summaries have been moved
outside the initial loop so that all of the function summaries can be
outputted before file summaries.

Also updated test cases.

llvm-svn: 197633
2013-12-19 00:29:25 +00:00
Yuchen Wu
fabdd3701d llvm-cov: Added -c option for branch counts.
This will cause llvm-cov to output branch counts instead of branch
probabilities. -b must be enabled.

Also updated tests.

llvm-svn: 197594
2013-12-18 18:40:15 +00:00
NAKAMURA Takumi
811b8a4265 Revert r197380, "llvm-config: Print SYSTEM_LIBS with --libs, instead of --ldflags."
I will introduce another flag, like --system-libs, later.

llvm-svn: 197583
2013-12-18 16:21:16 +00:00
NAKAMURA Takumi
ce11506dc8 llvm-config: Let directories aware of CMAKE_CFG_INTDIR.
With llvm-config.exe --bindir --libdir --build-mode, on Visual Studio 2010,

In build tree:
  (OBJ_ROOT)/bin/MinSizeRel
  (OBJ_ROOT)/lib/MinSizeRel
  MinSizeRel

In installed tree:
  (INSTALL_PREFIX)/bin
  (INSTALL_PREFIX)/lib
  MinSizeRel

This is enhancements since r196283.

llvm-svn: 197467
2013-12-17 05:48:37 +00:00
Yuchen Wu
20daa1c2fa llvm-cov: Added -u option for unconditional branch info.
Outputs branch information for unconditional branches in addition to
conditional branches. -b option must be enabled.

Also updated tests.

llvm-svn: 197432
2013-12-16 22:14:02 +00:00
NAKAMURA Takumi
7644bac321 [CMake] Introduce LLVM_RUNTIME_OUTPUT_INTDIR and LLVM_LIBRARY_OUTPUT_INTDIR to reduce references to CMAKE_CFG_INTDIR.
Each of them forms like;
  ${CMAKE_BINARY_DIR}/bin/${CMAKE_CFG_INTDIR}
  ${CMAKE_BINARY_DIR}/lib/${CMAKE_CFG_INTDIR}

llvm-svn: 197394
2013-12-16 16:03:08 +00:00
NAKAMURA Takumi
d9388809f9 llvm-config: Fixup r197380, tweak for cross compilation. SYSTEM_LIBS should be --host's in BuildTools/llvm-config.
FIXME: Host's llvm-config is not generated. It's for target's.
Host tools, aka "BuildTools", in utils, do not require llvm-config to build.

For example with --host=i686-pc-mingw32 --build=linux,

  $ BuildTools/Release+Asserts/bin/llvm-config --libs support
  -lLLVMSupport
  -lpthread -lshell32 -lpsapi -limagehlp -lm

llvm-svn: 197382
2013-12-16 13:09:06 +00:00
NAKAMURA Takumi
6143e3f702 llvm-config: Print SYSTEM_LIBS with --libs, instead of --ldflags.
LLVM libs are printed in the first line, and system libs are printed in the next line.

  $ bin/llvm-config --libs object
  -lLLVMObject -lLLVMSupport
  -lrt -ldl -ltinfo -lpthread -lz

It is workaround for PR3347 and PR8449.

llvm-svn: 197380
2013-12-16 11:22:22 +00:00
Yuchen Wu
698f3e12b7 llvm-cov: Added -b option for branch probabilities.
This option tells llvm-cov to print out branch probabilities when
a basic block contains multiple branches. It also prints out some
function summary info including the number of times the function enters,
the percent of time it returns, and how many blocks were executed.

Also updated tests.

llvm-svn: 197198
2013-12-13 01:15:07 +00:00
Matt Arsenault
ceacb41269 Fix gcc warnings.
Unused variable and unused typedef in release build.

llvm-svn: 196947
2013-12-10 18:55:37 +00:00
NAKAMURA Takumi
96bc4498eb [CMake] Add MCDisassembler to tools/lto. (has been removed since r196908)
lto.exports really exports LLVM-C Disasm stuff.

llvm-svn: 196911
2013-12-10 11:50:34 +00:00
NAKAMURA Takumi
955efe24ce [CMake] Update LLVM_LINK_COMPONENTS for each CMakeLists.txt.
llvm-svn: 196908
2013-12-10 11:13:32 +00:00
NAKAMURA Takumi
de4b826a6a [CMake] lli/CMakeLists.txt: Move add_subdirectory(ChildTarget) to the front. It depends on nothing described in LLVM_LINK_COMPONENTS.
llvm-svn: 196902
2013-12-10 10:30:08 +00:00
Yuchen Wu
9e73c842ad llvm-cov: Added -a option for block data.
Similar to gcov, llvm-cov will now print out the block count at the end
of each block. Multiple blocks can end on the same line.

One computational difference is by using -a, llvm-cov will no longer
simply add the block counts together to form a line count. Instead, it
will take the maximum of the block counts on that line. This has a
similar effect to what gcov does, but generates more correct counts in
certain scenarios.

Also updated tests.

llvm-svn: 196856
2013-12-10 01:02:07 +00:00
NAKAMURA Takumi
8570d9058f Whitespace cleanups.
llvm-svn: 196654
2013-12-07 11:21:42 +00:00
Lang Hames
544d618765 Revert r196639 while I investigate a bot failure.
llvm-svn: 196641
2013-12-07 04:25:19 +00:00
Lang Hames
a8f3295449 Add support for archives and object file caching under MCJIT.
Patch by Andy Kaylor, with minor edits to resolve merge conflicts.

llvm-svn: 196639
2013-12-07 03:05:51 +00:00
Yuchen Wu
d29823e2c3 llvm-cov: Conformed headers.
llvm-svn: 196541
2013-12-05 22:02:29 +00:00
Renato Golin
a4d4a4c44f Add #pragma vectorize enable/disable to LLVM
The intended behaviour is to force vectorization on the presence
of the flag (either turn on or off), and to continue the behaviour
as expected in its absence. Tests were added to make sure the all
cases are covered in opt. No tests were added in other tools with
the assumption that they should use the PassManagerBuilder in the
same way.

This patch also removes the outdated -late-vectorize flag, which was
on by default and not helping much.

The pragma metadata is being attached to the same place as other loop
metadata, but nothing forbids one from attaching it to a function
(to enable #pragma optimize) or basic blocks (to hint the basic-block
vectorizers), etc. The logic should be the same all around.

Patches to Clang to produce the metadata will be produced after the
initial implementation is agreed upon and committed. Patches to other
vectorizers (such as SLP and BB) will be added once we're happy with
the pass manager changes.

llvm-svn: 196537
2013-12-05 21:20:02 +00:00
Matt Arsenault
57be52c610 Fix minor GCC warnings.
Unused typedefs and unused variables.

llvm-svn: 196526
2013-12-05 19:37:36 +00:00
Alp Toker
e845f8af67 Correct word hyphenations
This patch tries to avoid unrelated changes other than fixing a few
hyphen-related ambiguities and contractions in nearby lines.

llvm-svn: 196471
2013-12-05 05:44:44 +00:00
Will Dietz
dd5418f361 Export symbols in tools that support loading plugins.
llvm-svn: 196447
2013-12-05 01:01:58 +00:00
Yuchen Wu
0b08e75d64 llvm-cov: Split GCOVFile's read into GCNO and GCDA.
This splits the file-scope read() function into readGCNO() and
readGCDA(). Also broke file format read into functions that first read
the file type, then check the version.

llvm-svn: 196353
2013-12-04 04:49:23 +00:00
NAKAMURA Takumi
63cd9136f2 check-llvm: Ask llvm-config about assertion mode, instead of llc.
Add --assertion-mode to llvm-config. It emits ON or OFF according to NDEBUG.

llvm-svn: 196329
2013-12-03 23:22:25 +00:00
Arnold Schwaighofer
1f4eee9e2f opt: Mirror vectorization presets of clang
clang enables vectorization at optimization levels > 1 and size level < 2. opt
should behave similarily.

Loop vectorization and SLP vectorization can be disabled with the flags
-disable-(loop/slp)-vectorization.

llvm-svn: 196294
2013-12-03 16:33:06 +00:00
NAKAMURA Takumi
e863a0c81a llvm-config: With --build-mode, show ${CMAKE_CFG_INTDIR} on multiconfig builder.
llvm-svn: 196283
2013-12-03 14:35:17 +00:00
Yuchen Wu
cd7628e981 llvm-cov: Removed output to STDOUT/specified file.
Instead of asking the user to specify a single file to output coverage
info and defaulting to STDOUT, llvm-cov now creates files for each
source file with a naming system of: <source filename> + ".llcov".

This is what gcov does and although it can clutter the working directory
with numerous coverage files, it will be easier to hook the llvm-cov
output to tools which operate on this assumption (such as lcov).

llvm-svn: 196184
2013-12-03 00:57:11 +00:00
Alp Toker
402d68071c Cut the gold plugin README down to size
This file hasn't been updated in years. Remove old information and point to
the current documentation at GoldPlugin.rst.

llvm-svn: 196100
2013-12-02 14:17:47 +00:00
Chandler Carruth
af3f7b0a67 [PM] Remove the underspecified 'getRoot' method from CallGraph. It's
only user was an ancient SCC printing bit of the opt tool which really
should be walking the call graph the same way the CGSCC pass manager
does.

llvm-svn: 195800
2013-11-27 01:32:17 +00:00
Chandler Carruth
5be5f8d16c [PM] Split the CallGraph out from the ModulePass which creates the
CallGraph.

This makes the CallGraph a totally generic analysis object that is the
container for the graph data structure and the primary interface for
querying and manipulating it. The pass logic is separated into its own
class. For compatibility reasons, the pass provides wrapper methods for
most of the methods on CallGraph -- they all just forward.

This will allow the new pass manager infrastructure to provide its own
analysis pass that constructs the same CallGraph object and makes it
available. The idea is that in the new pass manager, the analysis pass's
'run' method returns a concrete analysis 'result'. Here, that result is
a 'CallGraph'. The 'run' method will typically do only minimal work,
deferring much of the work into the implementation of the result object
in order to be lazy about computing things, but when (like DomTree)
there is *some* up-front computation, the analysis does it prior to
handing the result back to the querying pass.

I know some of this is fairly ugly. I'm happy to change it around if
folks can suggest a cleaner interim state, but there is going to be some
amount of unavoidable ugliness during the transition period. The good
thing is that this is very limited and will naturally go away when the
old pass infrastructure goes away. It won't hang around to bother us
later.

Next up is the initial new-PM-style call graph analysis. =]

llvm-svn: 195722
2013-11-26 04:19:30 +00:00
Hans Wennborg
8a9ba18dda VS integration: use the correct registry key after r195379
I changed the registry key in that commit, but forgot to update
the integration files. This change makes them use the same variable.

llvm-svn: 195479
2013-11-22 18:25:43 +00:00
Juergen Ributzka
990c8318f8 [weak vtables] Place class definitions into anonymous namespaces to prevent weak vtables.
This patch places class definitions in implementation files into anonymous
namespaces to prevent weak vtables. This eliminates the need of providing an
out-of-line definition to pin the vtable explicitly to the file.

llvm-svn: 195092
2013-11-19 03:08:35 +00:00
Juergen Ributzka
5357a6d64b [weak vtables] Remove a bunch of weak vtables
This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file. The memory leaks in this version have been fixed. Thanks
Alexey for pointing them out.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

llvm-svn: 195064
2013-11-19 00:57:56 +00:00
David Blaikie
97d9c49ba1 llvm-dwarfdump: support for emitting only the debug_types section using -debug-dump
llvm-svn: 195063
2013-11-19 00:29:42 +00:00
Alexey Samsonov
3bfef6bdb6 Revert r194865 and r194874.
This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
  Base *foo = new Child();
  delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.

llvm-svn: 194997
2013-11-18 09:31:53 +00:00
Juergen Ributzka
ee3af15269 [weak vtables] Remove a bunch of weak vtables
This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

llvm-svn: 194865
2013-11-15 22:34:48 +00:00
Benjamin Kramer
0207e765c7 llvm-cov: Clean up memory leaks.
llvm-svn: 194799
2013-11-15 09:44:17 +00:00
NAKAMURA Takumi
03017d65ec llvm-cov requires IR and Support as libraries. Instrumentation would be overkill.
llvm-svn: 194695
2013-11-14 11:45:16 +00:00
Simon Atanasyan
620a19c0b4 Add support for DT_VERxxx and DT_MIPS_xxx .dynamic section entries to the
llvm-readobj.

The patch reviewed by Michael Spencer.
http://llvm-reviews.chandlerc.com/D2113

llvm-svn: 194421
2013-11-11 20:51:48 +00:00
Bob Wilson
f240040c9b Change libLTO back to linking with @executable_path instead of @rpath.
This partially reverts r187641 until ld64 adopts a change to link with an
rpath setting.

llvm-svn: 194418
2013-11-11 20:08:24 +00:00
NAKAMURA Takumi
ad0df78440 llvm-ar: Let opening a directory failed in llvm-ar.
Linux cannot open directories with open(2), although cygwin and *bsd can.

Motivation: The test, Object/directory.ll, had been failing with --target=cygwin on Linux. XFAIL was improper for host issues.
llvm-svn: 194257
2013-11-08 12:35:56 +00:00
Alp Toker
b0735e3a67 Suppress OS crash dialog in llvm-rtdyld
All other tools have this -- it's needed to avoid hanging lit on Windows in
case of a crash.

llvm-svn: 194060
2013-11-05 09:33:43 +00:00
Yuchen Wu
2ca00e3a3d Revert "llvm-cov: Added command-line option to change dir."
This reverts commit d8acf0078cf363252727acff00f85ae8074f95b3.

llvm-svn: 194040
2013-11-05 01:56:29 +00:00
Yuchen Wu
f41fb5a06a llvm-cov: Added command-line option to change dir.
This will allow for much easier testing when the input files are in a
different folder from the test script.

llvm-svn: 194034
2013-11-05 01:20:41 +00:00
Jakub Staszak
a0334b429e Use startswith_lower() where possible.
llvm-svn: 194007
2013-11-04 19:22:50 +00:00
Rafael Espindola
3c7f6cf61c move getSymbolNMTypeChar to the one program that needs it: nm.
llvm-svn: 193933
2013-11-02 21:16:09 +00:00
Yuchen Wu
c01bdb27f5 Added command-line option to output llvm-cov to file.
Added -o option to llvm-cov. If no output file is specified, it defaults
to STDOUT.

llvm-svn: 193899
2013-11-02 00:09:17 +00:00
Rafael Espindola
24353f2de2 Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list".
There are two ways one could implement hiding of linkonce_odr symbols in LTO:
* LLVM tells the linker which symbols can be hidden if not used from native
  files.
* The linker tells LLVM which symbols are not used from other object files,
  but will be put in the dso symbol table if present.

GOLD's API is the second option. It was implemented almost 1:1 in llvm by
passing the list down to internalize.

LLVM already had partial support for the first option. It is also very similar
to how ld64 handles hiding these symbols when *not* doing LTO.

This patch then
* removes the APIs for the DSO list.
* marks LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN all linkonce_odr unnamed_addr
  global values and other linkonce_odr whose address is not used.
* makes the gold plugin responsible for handling the API mismatch.

llvm-svn: 193800
2013-10-31 20:51:58 +00:00
Rafael Espindola
d1c6b9624f Rules adjustments in order to build on DragonFly BSD.
Patch by Robin Hahling.

llvm-svn: 193750
2013-10-31 14:35:00 +00:00
Yuchen Wu
bd5d7e04ef Updated llvm-cov's OVERVIEW description
llvm-svn: 193732
2013-10-31 02:01:24 +00:00
Rafael Espindola
384d1f23a0 Support names like llvm-ar-3.4 and llvm-ranlib-3.4.
They are used in some packages. For example:
http://packages.ubuntu.com/saucy/i386/llvm-3.4/filelist

This fixes pr17721.

llvm-svn: 193612
2013-10-29 14:25:43 +00:00
Andrew Kaylor
ebf56c2f5f Cleaning up comments in lli
llvm-svn: 193571
2013-10-29 01:33:14 +00:00
Andrew Kaylor
e37d9c43ed Adding a workaround for __main linking with remote lli and Cygwin/MinGW
llvm-svn: 193570
2013-10-29 01:29:56 +00:00
Alp Toker
918eded7e7 Fix the lli --extra-module value_desc
llvm-svn: 193552
2013-10-28 22:51:25 +00:00
Andrew Kaylor
0fb11a9ebb Standardizing lli's extra module command line option
llvm-svn: 193544
2013-10-28 21:58:15 +00:00
NAKAMURA Takumi
66de6c5eec MCJIT-remote: __main should be resolved in child context.
- Mark tests as XFAIL:cygming in test/ExecutionEngine/MCJIT/remote.
    Rather to suppress them, I'd like to leave them running as XFAIL.
  - Revert r193472. RecordMemoryManager no longer resolves __main on cygming.

There are a couple of issues.

  - X86 Codegen emits "call __main" in @main for targeting cygming.
    It is useless in JIT. FYI, tests are passing when emitting __main is disabled.
  - Current remote JIT does not resolve any symbols in child context.

FIXME: __main should be disabled, or remote JIT should resolve __main.
llvm-svn: 193498
2013-10-27 10:22:52 +00:00
NAKAMURA Takumi
ea95c35a51 lli/RemoteMemoryManager.cpp: Resurrect __main stuff removed in r192504 to unbreak mingw32.
llvm-svn: 193472
2013-10-26 13:52:31 +00:00
Daniel Sanders
fa62351fd5 [bugpoint] Increase the default memory limit for subprocesses to 300MB.
Summary:
Currently shared library builds (BUILD_SHARED_LIBS=ON in cmake) fail three
bugpoint tests (BugPoint/remove_arguments_test.ll,
BugPoint/crash-narrowfunctiontest.ll, and BugPoint/metadata.ll).

If I run the bugpoint commands that llvm-lit runs with without -silence-passes
I see errors such as this:
    opt: error while loading shared libraries: libLLVMSystemZInfo.so: failed to
    map segment from shared object: Cannot allocate memory

It seems that the increased size of the binaries in a shared library build is
causing the subprocess to exceed the 100MB memory limit. This patch therefore
increases the default limit to a level at which these tests pass.

Reviewers: dsanders

Reviewed By: dsanders

CC: llvm-commits, rafael

Differential Revision: http://llvm-reviews.chandlerc.com/D2013

llvm-svn: 193420
2013-10-25 17:41:41 +00:00
Benjamin Kramer
f30113219f llvm-c-test: Don't leak memory buffers.
Detected by valgrind.

llvm-svn: 193416
2013-10-25 15:58:58 +00:00
Reid Kleckner
69aecb4269 lto.h: Use lto_bool_t instead of int to restore the ABI
This reverts commit r193255 and instead creates an lto_bool_t typedef
that points to bool, _Bool, or unsigned char depending on what is
available.  Only recent versions of MSVC provide a stdbool.h header.

Reviewers: rafael.espindola

Differential Revision: http://llvm-reviews.chandlerc.com/D2019

llvm-svn: 193377
2013-10-24 22:26:04 +00:00
NAKAMURA Takumi
eec68da299 llvm/tools/llvm-c-test should be built also on msvc.
llvm-svn: 193257
2013-10-23 17:56:59 +00:00
NAKAMURA Takumi
a198c22185 llvm-c/lto.h: Avoid use of bool.
llvm-svn: 193255
2013-10-23 17:56:46 +00:00
NAKAMURA Takumi
c90a479869 llvm-c-test: Make them C89-compliant.
llvm-svn: 193254
2013-10-23 17:56:37 +00:00
Anders Waldenborg
94fc29186e Add llvm-c-test tool for testing llvm-c
This provides rudimentary testing of the llvm-c api.

The following commands are implemented:

  * --module-dump
    Read bytecode from stdin - print ir

  * --module-list-functions
    Read bytecode from stdin - list summary of functions

  * --module-list-globals
    Read bytecode from stdin - list summary of globals

  * --targets-list
    List available targets

  * --object-list-sections
    Read object file from stdin - list sections

  * --object-list-symbols
    Read object file from stdin - list symbols (like nm)

  * --disassemble
    Read lines of triple, hex ascii machine code from stdin - print disassembly

  * --calc
    Read lines of name, rpn from stdin - print generated module ir

Differential-Revision: http://llvm-reviews.chandlerc.com/D1776
llvm-svn: 193233
2013-10-23 08:10:20 +00:00
Bob Wilson
dfa90927ed Change llvm-cov output formatting to be more similar to gcov.
- Replaced tabs with proper padding
- print() takes two arguments, which are the GCNO and GCDA filenames
- Files are listed at the top of output, appended by line 0
- Stripped strings of trailing \0s
- Removed last two lines of whitespace in output

Patch by Yuchen Wu!

llvm-svn: 193148
2013-10-22 05:09:41 +00:00
Bob Wilson
1a96904c72 Move the printing of llvm-cov information out from collectLineCounts().
collectLineCounts() should only organize the output data. This is done in
anticipation of subsequent changes which will pass in GCNO and GCDA filenames
into the print function where it is printed similar to the gcov output.

Patch by Yuchen Wu!

llvm-svn: 193134
2013-10-22 00:09:03 +00:00
Rafael Espindola
991f723e21 Check for errors when calling lto_codegen_add_module in the gold plugin.
Thanks to Milan Lenčo for noticing it.

llvm-svn: 192996
2013-10-18 19:32:06 +00:00
Rafael Espindola
ec9d21071a [pr17595] Fix a use after free.
Destroying the codegen also frees the path of the created object. Copy the
path to a std::string.

llvm-svn: 192787
2013-10-16 12:47:04 +00:00
Alexey Samsonov
ce694a322e llvm-symbolizer: don't always run demangler on global object names
llvm-svn: 192781
2013-10-16 09:54:49 +00:00
Andrew Kaylor
3291bcae8d Adding support for deregistering EH frames with MCJIT.
Patch by Yaron Keren

llvm-svn: 192753
2013-10-16 00:14:21 +00:00
Hans Wennborg
b90166e9d0 vs2013 msbuild integration: add missing .target files, fix typo in CMakeLists
This should fix PR17568.

Patch by Josh Samuel!

llvm-svn: 192610
2013-10-14 18:16:37 +00:00
Will Dietz
be3a7e9197 yaml2coff/elf: Touchup for compatibility.
* std::string::append(int, int) can be ambiguous.
* std::vector<>::data() is a C++11 feature, use ArrayRef abstraction.

llvm-svn: 192542
2013-10-12 21:29:16 +00:00
Will Dietz
2703980be5 Add missing #include's to cctype when using isdigit/alpha/etc.
llvm-svn: 192519
2013-10-12 00:55:57 +00:00
Andrew Kaylor
54a20b979d Fixing problems in lli's RemoteMemoryManager.
This fixes a problem from a previous check-in where a return value was omitted.

Previously the remote/stubs-remote.ll and remote/stubs-sm-pic.ll tests were reporting passes, but they should have been failing.  Those tests attempt to link against an external symbol and remote symbol resolution is not supported.  The old RemoteMemoryManager implementation resulted in local symbols being used for resolution and the child process crashed but the test didn't notice.  With this check-in remote symbol resolution fails, and so the test (correctly) fails.

llvm-svn: 192514
2013-10-11 22:47:10 +00:00
Andrew Kaylor
0f28749d52 Adding multiple object support to MCJIT EH frame handling
llvm-svn: 192504
2013-10-11 21:25:48 +00:00
Manman Ren
1f6bdc7436 Debug Info: In DIBuilder, the context field of subprogram is updated to use
DIScopeRef.

A paired commit at clang is required due to changes to DIBuilder.

llvm-svn: 192378
2013-10-10 18:40:01 +00:00
Hans Wennborg
01ae8115a6 Provide msbuild integration for vs2013.
Patch by Josh Samuel!

llvm-svn: 192371
2013-10-10 17:32:01 +00:00
Hans Wennborg
50851feae9 Fix msbuild integration install script.
We previously failed to check whether the SUCCESS variable was set,
and would thus always exit with a failure if vs2012 didn't exist.

llvm-svn: 192370
2013-10-10 17:31:54 +00:00
Greg Bedwell
779f0d60f1 Test commit. Remove whitespace from otherwise empty lines.
llvm-svn: 192284
2013-10-09 08:55:27 +00:00
Andrew Kaylor
d7a81f88ad Removing unintended code block from lli
llvm-svn: 192205
2013-10-08 17:15:11 +00:00
Rafael Espindola
9393b75d84 Only modify lto.exports.def when contents have changed.
Patch by Greg Bedwell.

llvm-svn: 192182
2013-10-08 15:07:00 +00:00
NAKAMURA Takumi
4e9fc11644 Revert r191088, corresponding to r191823 to re-enable llvm-lto on cygming.
r191088 is "llvm/tools/Makefile: Suppress building llvm-lto on cygming, for now, probably due to LTO.dll."

llvm-svn: 192104
2013-10-07 15:42:22 +00:00
Simon Atanasyan
724835dff7 [Mips] Teach llvm-readobj to print MIPS-specific ELF program headers.
The patch reviewed by Michael Spencer.
http://llvm-reviews.chandlerc.com/D1846

llvm-svn: 192093
2013-10-07 08:58:27 +00:00
Benjamin Kramer
bb881530c1 lli: Plug leaks in the remote target external implementation.
llvm-svn: 192031
2013-10-05 11:53:20 +00:00
Rafael Espindola
8b2f4200cf Fix object file writing in llvm-lto on Windows.
We were writing in text mode.

Patch by Greg Bedwell.

llvm-svn: 191985
2013-10-04 21:40:54 +00:00
Andrew Kaylor
f6605bf8ed Attempting to fix lli build error
llvm-svn: 191979
2013-10-04 20:53:49 +00:00
Andrew Kaylor
9d494158be Fixing container/pointer bug in remote-lli found by ASan
llvm-svn: 191976
2013-10-04 20:09:36 +00:00
Benjamin Kramer
e679e3e35e lli: Check pipe creation for errors.
This is unlikely to ever fail, but ubuntu GCC warns when the return value is
unused.

llvm-svn: 191973
2013-10-04 19:10:03 +00:00
Rafael Espindola
144af3df00 Add lto_codegen_add_dso_symbol to the export list.
llvm-svn: 191970
2013-10-04 17:30:14 +00:00
Andrew Kaylor
4c916e5212 Adding support and tests for multiple module handling in lli
llvm-svn: 191938
2013-10-04 00:49:38 +00:00
Rafael Espindola
a88c415234 Optimize linkonce_odr unnamed_addr functions during LTO.
Generalize the API so we can distinguish symbols that are needed just for a DSO
symbol table from those that are used from some native .o.

The symbols that are only wanted for the dso symbol table can be dropped if
llvm can prove every other dso has a copy (linkonce_odr) and the address is not
important (unnamed_addr).

llvm-svn: 191922
2013-10-03 18:29:09 +00:00
Rafael Espindola
22fa62d2f8 Dispose the codegen even when just writing the bitcode file.
This makes it possible to add timers to the code generator and still use them
with -plugin-opt=emit-llvm.

llvm-svn: 191866
2013-10-03 00:07:30 +00:00
Andrew Kaylor
009a3cd324 Fixing lli-child-target build
llvm-svn: 191861
2013-10-02 22:27:23 +00:00
Benjamin Kramer
e859f8bca5 Add newline at eof.
llvm-svn: 191857
2013-10-02 21:58:02 +00:00
Richard Smith
6c053da49c Pass the resolved lli-child-target executable name to execv, rather than
searching $PATH for it then blindly executing it from $PWD anyway.

llvm-svn: 191856
2013-10-02 21:33:12 +00:00
Andrew Kaylor
66d288d3fa Fix build problems with remote lli implementation
llvm-svn: 191848
2013-10-02 19:26:16 +00:00
Andrew Kaylor
fa19dd0edf Clean up lli execution code
llvm-svn: 191845
2013-10-02 18:04:40 +00:00
Andrew Kaylor
1772140e45 Fixing compile warnings
llvm-svn: 191844
2013-10-02 18:00:34 +00:00
Andrew Kaylor
948eef739c Adding out-of-process execution support to lli.
At this time only Unix-based systems are supported.  Windows has stubs and should re-route to the simulated mode.

Thanks to Sriram Murali for contributions to this patch.

llvm-svn: 191843
2013-10-02 17:12:36 +00:00
Chandler Carruth
ee12d58370 Remove the very substantial, largely unmaintained legacy PGO
infrastructure.

This was essentially work toward PGO based on a design that had several
flaws, partially dating from a time when LLVM had a different
architecture, and with an effort to modernize it abandoned without being
completed. Since then, it has bitrotted for several years further. The
result is nearly unusable, and isn't helping any of the modern PGO
efforts. Instead, it is getting in the way, adding confusion about PGO
in LLVM and distracting everyone with maintenance on essentially dead
code. Removing it paves the way for modern efforts around PGO.

Among other effects, this removes the last of the runtime libraries from
LLVM. Those are being developed in the separate 'compiler-rt' project
now, with somewhat different licensing specifically more approriate for
runtimes.

llvm-svn: 191835
2013-10-02 15:42:23 +00:00
Chandler Carruth
a104394ad3 Tidy up this line of the Makefile before I start hacking on it.
I really should sort it or do something more sustainable, but I couldn't
work up the energy to do it... Sorry.

llvm-svn: 191832
2013-10-02 15:14:13 +00:00
Rafael Espindola
83e2fc9be0 Fix option parsing in the gold plugin.
This was broken when options were moved up in r191680. No test because this is
specific LLVMgold.so/libLTO.so.

Patch by Tom Roeder!

llvm-svn: 191829
2013-10-02 14:36:23 +00:00
Rafael Espindola
2625113559 Add a -exported-symbol option to llvm-lto.
Patch by Tom Roeder.

llvm-svn: 191825
2013-10-02 14:12:56 +00:00
Rafael Espindola
f84c89a432 Enable building LTO on WIN32.
Enable building the LTO library (.lib and.dll) and llvm-lto.exe on Windows with
MSVC and Mingw as well as re-enabling the associated test.

Patch by Greg Bedwell!

llvm-svn: 191823
2013-10-02 14:04:38 +00:00
Filip Pizlo
1e0fa7cd7d This threads SectionName through the allocateCodeSection/allocateDataSection APIs, both in C++ and C land.
It's useful for the memory managers that are allocating a section to know what the name of the section is.  
At a minimum, this is useful for low-level debugging - it's customary for JITs to be able to tell you what 
memory they allocated, and as part of any such dump, they should be able to tell you some meta-data about 
what each allocation is for.  This allows clients that supply their own memory managers to do this.  
Additionally, we also envision the SectionName being useful for passing meta-data from within LLVM to an LLVM 
client.

This changes both the C and C++ APIs, and all of the clients of those APIs within LLVM.  I'm assuming that 
it's safe to change the C++ API because that API is allowed to change.  I'm assuming that it's safe to change 
the C API because we haven't shipped the API in a release yet (LLVM 3.3 doesn't include the MCJIT memory 
management C API).

llvm-svn: 191804
2013-10-02 00:59:25 +00:00
Rafael Espindola
a279462828 Remove several unused variables.
Patch by Alp Toker.

llvm-svn: 191757
2013-10-01 13:32:03 +00:00
Andrew Kaylor
b068069d0c Adding multiple module support for MCJIT.
Tests to follow.

PIC with small code model and  EH frame handling will not work with multiple modules.  There are also some rough edges to be smoothed out for remote target support.

llvm-svn: 191722
2013-10-01 01:47:35 +00:00
Rafael Espindola
c7fe26d6e4 Move command line options to the users of libLTO. Fixes --enable-shared build.
Patch by Richard Sandiford.

llvm-svn: 191680
2013-09-30 16:39:19 +00:00
Rafael Espindola
bed99fa456 Revert "Enable building LTO on WIN32."
This reverts commit r191670.

It was causing build failures on the msvc bots:

http://bb.pgr.jp/builders/ninja-clang-i686-msc17-R/builds/5166/steps/compile/logs/stdio

llvm-svn: 191679
2013-09-30 16:32:51 +00:00
Rafael Espindola
5a90437273 Enable building LTO on WIN32.
Enable building the LTO library (.lib and.dll) and llvm-lto.exe on Windows with
MSVC and Mingw as well as re-enabling the associated test.

Patch by Greg Bedwell!

llvm-svn: 191670
2013-09-30 15:28:14 +00:00
Rui Ueyama
c53dd85c54 Object/COFF: Rename getXXX{Begin,End} -> xxx_{begin,end}.
It is mentioned in the LLVM coding standard that _begin() and _end() suffixes
should be used.

llvm-svn: 191569
2013-09-27 21:47:05 +00:00
Rui Ueyama
10d27e5fc0 Re-submit r191472 with a fix for big endian.
llvm-objdump: Dump COFF import table if -private-headers option is given.
llvm-svn: 191557
2013-09-27 21:04:00 +00:00
Rui Ueyama
81f870f6bc Revert "llvm-objdump: Dump COFF import table if -private-headers option is given."
This reverts commit r191472 because it's failing on BE machine.

llvm-svn: 191480
2013-09-27 01:29:36 +00:00
Rui Ueyama
f52a4ec55c Fix another -Wnon-pod-varargs error in r191472.
llvm-svn: 191474
2013-09-27 00:53:07 +00:00
Rui Ueyama
2ea82c31e3 Fix -Wnon-pod-varargs error in r191472.
llvm-svn: 191473
2013-09-27 00:20:53 +00:00
Rui Ueyama
8e956ff30c llvm-objdump: Dump COFF import table if -private-headers option is given.
This is a patch to add capability to llvm-objdump to dump COFF Import Table
entries, so that we can write tests for LLD checking Import Table contents.

llvm-objdump did not print anything but just file name if the format is COFF
and -private-headers option is given. This is a patch adds capability for
dumping DLL Import Table, which is specific to the COFF format.

In this patch I defined a new iterator to iterate over import table entries.
Also added a few functions to COFFObjectFile.cpp to access fields of the entry.

Differential Revision: http://llvm-reviews.chandlerc.com/D1719

llvm-svn: 191472
2013-09-27 00:07:01 +00:00
Eric Christopher
7f9a74f73f Add gnu pubsections as options to llvm-dwarfdump.
Argument spelling feedback welcome.

llvm-svn: 191409
2013-09-25 23:02:44 +00:00
Eric Christopher
02158bcbd4 Dump the normal dwarf pubtypes section as well.
llvm-svn: 191408
2013-09-25 23:02:41 +00:00
Peter Collingbourne
8969240f9e Move LTO support library to a component, allowing it to be tested
more reliably across platforms.  Patch by Tom Roeder!

llvm-svn: 191343
2013-09-24 23:52:22 +00:00
NAKAMURA Takumi
98762f0455 llvm/tools/Makefile: Suppress building llvm-lto on cygming, for now, probably due to LTO.dll.
llvm-svn: 191088
2013-09-20 13:12:24 +00:00
Peter Collingbourne
2a807b9eca Fix LTO handling of module-level assembly (PR14152).
Patch by Tom Roeder!

llvm-svn: 191042
2013-09-19 22:15:52 +00:00
Reid Kleckner
21bc113b25 msbuild: Set _MSC_VER to match the CRT we're using
Various Windows SDK headers use _MSC_VER values to figure out what
version of the VC++ headers they're using, in particular for SAL macros.

Patch by Paul Hampson!

llvm-svn: 191015
2013-09-19 17:18:35 +00:00
Reid Kleckner
87bdb83774 Include an LLVM-vs2012_xp toolset in the MSBuild integration
Patch by Paul Hampson!

llvm-svn: 191010
2013-09-19 16:50:40 +00:00
Andrew Trick
e482b777ac Revert "Encapsulate PassManager debug flags to avoid static init and cxa_exit."
Working on a better solution to this.

This reverts commit 7d4e9934e7ca83094c5cf41346966c8350179ff2.

llvm-svn: 190990
2013-09-19 06:02:43 +00:00
Andrew Trick
2a04344d58 Encapsulate PassManager debug flags to avoid static init and cxa_exit.
This puts all the global PassManager debugging flags, like
-print-after-all and -time-passes, behind a managed static. This
eliminates their static initializers and, more importantly, exit-time
destructors.

The only behavioral change I anticipate is that tools need to
initialize the PassManager before parsing the command line in order to
export these options, which makes sense. Tools that already initialize
the standard passes (opt/llc) don't need to do anything new.

llvm-svn: 190974
2013-09-18 23:31:16 +00:00
Andrew Trick
b62e54c1ca whitespace
llvm-svn: 190973
2013-09-18 23:31:10 +00:00
Craig Topper
5d022196de Lift alignment restrictions for load/store folding on VINSERTF128/VEXTRACTF128. Fixes PR17268.
llvm-svn: 190916
2013-09-18 03:55:53 +00:00
Benjamin Kramer
e8d495c088 ELF: Add support for the exclude section bit for gas compat.
llvm-svn: 190769
2013-09-15 19:53:20 +00:00
Joey Gouly
51105ec453 [LTO] Fix the LTO tool, after my API breakage.
Thanks to Zonr Chang!

llvm-svn: 190602
2013-09-12 12:55:29 +00:00
Joey Gouly
fccb3bcae3 Add an instruction deprecation feature to TableGen.
The 'Deprecated' class allows you to specify a SubtargetFeature that the
instruction is deprecated on.

The 'ComplexDeprecationPredicate' class allows you to define a custom
predicate that is called to check for deprecation.
For example:
  ComplexDeprecationPredicate<"MCR">

would mean you would have to define the following function:
  bool getMCRDeprecationInfo(MCInst &MI, MCSubtargetInfo &STI,
                             std::string &Info)

Which returns 'false' for not deprecated, and 'true' for deprecated
and store the warning message in 'Info'.

The MCTargetAsmParser constructor was chaned to take an extra argument of
the MCInstrInfo class, so out-of-tree targets will need to be changed.

llvm-svn: 190598
2013-09-12 10:28:05 +00:00
Manman Ren
c162f49ca6 Debug Info: Use DIScopeRef for DIType::getContext.
In DIBuilder, the context field of a TAG_member is updated to use the
scope reference. Verifier is updated accordingly.
    
DebugInfoFinder now needs to generate a type identifier map to have
access to the actual scope. Same applies for BreakpointPrinter.
    
processModule of DebugInfoFinder is called during initialization phase
of the verifier to make sure the type identifier map is constructed early
enough.
    
We are now able to unique a simple class as demonstrated by the added
testing case.

llvm-svn: 190334
2013-09-09 19:47:11 +00:00
Bob Wilson
6c7d3717b3 Revert patches to add case-range support for PR1255.
The work on this project was left in an unfinished and inconsistent state.
Hopefully someone will eventually get a chance to implement this feature, but
in the meantime, it is better to put things back the way the were.  I have
left support in the bitcode reader to handle the case-range bitcode format,
so that we do not lose bitcode compatibility with the llvm 3.3 release.

This reverts the following commits: 155464, 156374, 156377, 156613, 156704,
156757, 156804 156808, 156985, 157046, 157112, 157183, 157315, 157384, 157575,
157576, 157586, 157612, 157810, 157814, 157815, 157880, 157881, 157882, 157884,
157887, 157901, 158979, 157987, 157989, 158986, 158997, 159076, 159101, 159100,
159200, 159201, 159207, 159527, 159532, 159540, 159583, 159618, 159658, 159659,
159660, 159661, 159703, 159704, 160076, 167356, 172025, 186736

llvm-svn: 190328
2013-09-09 19:14:35 +00:00
Bill Wendling
2c532e9c9b Generate compact unwind encoding from CFI directives.
We used to generate the compact unwind encoding from the machine
instructions. However, this had the problem that if the user used `-save-temps'
or compiled their hand-written `.s' file (with CFI directives), we wouldn't
generate the compact unwind encoding.

Move the algorithm that generates the compact unwind encoding into the
MCAsmBackend. This way we can generate the encoding whether the code is from a
`.ll' or `.s' file.

<rdar://problem/13623355>

llvm-svn: 190290
2013-09-09 02:37:14 +00:00
Hans Wennborg
5265ac9dbf msbuild integration: provide separate files for VS2010 and VS2012
The previous msbuild integration only worked if VS2010 was installed. This patch
renames the current integration to LLVM-vs2010 and adds LLVM-vs2012.

Differential Revision: http://llvm-reviews.chandlerc.com/D1614

llvm-svn: 190173
2013-09-06 17:05:46 +00:00
Reid Kleckner
406bdc140a msbuild: Add clang's compiler-rt libs to the LibraryPath
This allows linking libraries like the asan RTL.

llvm-svn: 190028
2013-09-05 02:09:34 +00:00
Rafael Espindola
2a5c049416 Rename some variables to match the style guide.
I am about to patch this code, and this makes the diff far more readable.

llvm-svn: 189982
2013-09-04 20:08:46 +00:00
Rafael Espindola
4038113eea Rename variables to match the style guide and clang-format.
llvm-svn: 189962
2013-09-04 17:44:24 +00:00
Joerg Sonnenberger
930841271b Print string value for DT_RPATH and DT_RUNPATH.
llvm-svn: 189829
2013-09-03 17:13:53 +00:00
Dmitri Gribenko
3c784ef695 Added std:: qualifier to find() invocation
Iterator of std::vector may be implemented as a raw pointer. In
this case ADL does not find the find() function in the std namespace.
For example, this is the case with STDCXX implementation of vector.

Patch by Konstantin Tokarev.

llvm-svn: 189733
2013-09-02 01:18:56 +00:00
Charles Davis
5191e0b0d0 Move everything depending on Object/MachOFormat.h over to Support/MachO.h.
llvm-svn: 189728
2013-09-01 04:28:48 +00:00
Reid Kleckner
9f5a384df2 Substitute LLVM's version into the msbuild property file at config time
Requires shuffling the CPack code up before add_subdirectory(tools), but
that's where the version settings are anyway.

llvm-svn: 189615
2013-08-29 22:09:43 +00:00
Warren Hunt
af01e612c6 Modified ms-build configuration file to be version locked to the VS2010 toolchain, this avoids conflicts with having VS2012 and
Win7SDK used at the same time.

llvm-svn: 189613
2013-08-29 21:23:53 +00:00
Warren Hunt
bd49263522 Adding VCIncludeDir and WindowsSDKDir to the msbuild configuration file. This allows clang to find windows.h and other files in the
sdk and visutal studio includes.

llvm-svn: 189528
2013-08-28 22:54:13 +00:00
Rafael Espindola
a44903bdb6 Fix name matching to work on windows.
llvm-svn: 189517
2013-08-28 21:00:03 +00:00
Hal Finkel
a22a21165f Disable unrolling in the loop vectorizer when disabled in the pass manager
When unrolling is disabled in the pass manager, the loop vectorizer should also
not unroll loops. This will allow the -fno-unroll-loops option in Clang to
behave as expected (even for vectorizable loops). The loop vectorizer's
-force-vector-unroll option will (continue to) override the pass-manager
setting (including -force-vector-unroll=0 to force use of the internal
auto-selection logic).

In order to test this, I added a flag to opt (-disable-loop-unrolling) to force
disable unrolling through opt (the analog of -fno-unroll-loops in Clang). Also,
this fixes a small bug in opt where the loop vectorizer was enabled only after
the pass manager populated the queue of passes (the global_alias.ll test needed
a slight update to the RUN line as a result of this fix).

llvm-svn: 189499
2013-08-28 18:33:10 +00:00
Hans Wennborg
05af844a7a cmake: Prevent semicolon separated lists in llvm-config (PR17020)
llvm-svn: 189491
2013-08-28 17:04:06 +00:00
Rafael Espindola
695620f5e9 Add a minimal implementation of ranlib.
This is just enough to get "llvm-ranlib foo.a" working and tested. Making
llvm-ranlib a symbolic link to llvm-ar doesn't work so well with llvm's option
parsing, but ar's option parsing is mostly custom anyway.

This patch also removes the -X32_64 option. Looks like it was just added in
r10297 as part of implementing the current command line parsing. I can add it
back (with a test) if someone really has AIX portability problems without it.

llvm-svn: 189489
2013-08-28 16:22:16 +00:00
Hans Wennborg
b63516efe7 cmake: Add msbuild integration to the install
This adds the msbuild integration files to the install, provides batch scripts
for (un)installing it in a convenient way, and hooks up the nsis installer to
run those scripts.

Differential Revision: http://llvm-reviews.chandlerc.com/D1537

llvm-svn: 189434
2013-08-28 01:19:26 +00:00
Argyrios Kyrtzidis
8975027f95 [CMake] Put back the add_llvm_external_project() calls for specific projects.
This allows setting-up the LLVM_EXTERNAL_* CMake variables that some people are using,
e.g. to set the source directory of the project in a different place.

llvm-svn: 189415
2013-08-27 23:27:56 +00:00
Reid Kleckner
bda9928a78 Add xml files for msbuild integration
These files are intended to live in the msbuild toolset directory, which
is somewhere like:

C:\Program Files (x86)\MSBuild\Microsoft.Cpp\
  v4.0\Platforms\Win32\PlatformToolsets\llvm

More work is needed to install them as part of the NSIS installer.

Patch by Warren Hunt!

llvm-svn: 189411
2013-08-27 23:07:17 +00:00
Shuxin Yang
07a72e63c6 Revert 189297, the original commit message is following.
----
  Add new API lto_codegen_compile_parallel().

  This API is proposed by Nick Kledzik. The semantic is:

  --------------------------------------------------------------------------
   Generate code for merged module into an array of native object files. On 
   success returns a pointer to an array of NativeObjectFile.  The count 
   parameter returns the number of elements in the array.  Each element is 
   a pointer/length for a generated mach-o/ELF buffer.  The buffer is owned
   by the lto_code_gen_t and will be freed when lto_codegen_dispose() is called, 
   or lto_codegen_compile() is called again. On failure, returns NULL 
   (check lto_get_error_message() for details).

   extern const struct  NativeObjectFile*
   lto_codegen_compile_parallel(lto_code_gen_t cg, size_t *count);
  ---------------------------------------------------------------------------

  This API is currently only called on OSX platform. Linux or other Unixes
using GNU gold are not supposed to call this function, because on these systems, 
object files are fed back to linker via disk file instead of memory buffer.

  In this commit, lto_codegen_compile_parallel() simply calls
lto_codegen_compile() to return a single object file. In the near future,
this function is the entry point for compilation with partition. Linker can
blindly call this function even if partition is turned off; in this case,
compiler will return only one object file.

llvm-svn: 189386
2013-08-27 17:15:54 +00:00
Charles Davis
6e439dabdb Revert "Fix the build broken by r189315." and "Move everything depending on Object/MachOFormat.h over to Support/MachO.h."
This reverts commits r189319 and r189315. r189315 broke some tests on what I
believe are big-endian platforms.

llvm-svn: 189321
2013-08-27 05:38:30 +00:00
David Blaikie
02deb1dcc1 Fix the build broken by r189315.
(this triggered Clang's -Wsometimes-uninitialized on the default path
through the switch)

llvm-svn: 189319
2013-08-27 05:16:07 +00:00
Charles Davis
cecfbfaf57 Move everything depending on Object/MachOFormat.h over to Support/MachO.h.
llvm-svn: 189315
2013-08-27 05:00:43 +00:00
Shuxin Yang
da579e3471 Add new API lto_codegen_compile_parallel().
This API is proposed by Nick Kledzik. The semantic is:

  --------------------------------------------------------------------------
   Generate code for merged module into an array of native object files. On 
   success returns a pointer to an array of NativeObjectFile.  The count 
   parameter returns the number of elements in the array.  Each element is 
   a pointer/length for a generated mach-o/ELF buffer.  The buffer is owned
   by the lto_code_gen_t and will be freed when lto_codegen_dispose() is called, 
   or lto_codegen_compile() is called again. On failure, returns NULL 
   (check lto_get_error_message() for details).

   extern const struct  NativeObjectFile*
   lto_codegen_compile_parallel(lto_code_gen_t cg, size_t *count);
  ---------------------------------------------------------------------------

  This API is currently only called on OSX platform. Linux or other Unixes
using GNU gold are not supposed to call this function, because on these systems, 
object files are fed back to linker via disk file instead of memory buffer.

  In this commit, lto_codegen_compile_parallel() simply calls
lto_codegen_compile() to return a single object file. In the near future,
this function is the entry point for compilation with partition. Linker can
blindly call this function even if partition is turned off; in this case,
compiler will return only one object file.

llvm-svn: 189297
2013-08-27 00:03:23 +00:00
Alexey Samsonov
3ddfca05b8 llvm-symbolizer: use real path when looking for debug binary location
llvm-svn: 189250
2013-08-26 18:12:03 +00:00
Hans Wennborg
83dfd507dc CMake: move lto.h install to tools/lto/CMakeLists.txt
It looked misplaced in the main CMakeLists.txt file.

llvm-svn: 189230
2013-08-26 16:54:12 +00:00
Hans Wennborg
a5e4216365 CMake: build llvm-config on Windows.
It was previously not being built on Windows because the cmake file relied
on a sed script to generate a .in file that llvm-config needs.

By using cmake's configure_file function, we can get rid off the sed hack,
and also have this work on Windows.

Differential Revision: http://llvm-reviews.chandlerc.com/D1481

llvm-svn: 189125
2013-08-23 17:59:13 +00:00
NAKAMURA Takumi
025db61423 lto/CMakeLists.txt: Cut the dep to intrinsics_gen. LTO doesn't depend on it and LTO_static doesn't depend on anything.
llvm-svn: 189086
2013-08-23 02:51:13 +00:00
Argyrios Kyrtzidis
3149b23fc7 [CMake] Automatically pick up subdirectories in llvm/tools as 'external projects' if they contain a 'CMakeLists.txt' file.
Allow CMake to pick up external projects in llvm/tools without the need to modify the "llvm/tools/CMakeLists.txt" file.
This makes it easier to work with projects that live in other repositories, without needing to specify each one in "llvm/tools/CMakeLists.txt".

llvm-svn: 188921
2013-08-21 19:13:44 +00:00
Ahmed Bougacha
f1b8b6c212 Add basic YAML MC CFG testcase.
Drive-by llvm-objdump cleanup (don't hardcode ToolName).

llvm-svn: 188904
2013-08-21 16:13:25 +00:00
Ahmed Bougacha
b390121488 MC CFG: Add YAML MCModule representation to enable MC CFG testing.
Like yaml ObjectFiles, this will be very useful for testing the MC CFG
implementation (mostly MCObjectDisassembler), by matching the output
with YAML, and for potential users of the MC CFG, by using it as an input.

There isn't much to the actual format, it is just a serialization of the
MCModule class. Of note:
  - Basic block references (pred/succ, ..) are represented by the BB's
    start address.
  - Just as in the MC CFG, instructions are MCInsts with a size.
  - Operands have a prefix representing the type (only register and
    immediate supported here).
  - Instruction opcodes are represented by their names; enum values aren't
    stable, enum names mostly are: usually, a change to a name would need
    lots of changes in the backend anyway.
    Same with registers.

All in all, an example is better than 1000 words, here goes:

A simple binary:

  Disassembly of section __TEXT,__text:
  _main:
  100000f9c:      48 8b 46 08             movq    8(%rsi), %rax
  100000fa0:      0f be 00                movsbl  (%rax), %eax
  100000fa3:      3b 04 25 48 00 00 00    cmpl    72, %eax
  100000faa:      0f 8c 07 00 00 00       jl      7 <.Lend>
  100000fb0:      2b 04 25 48 00 00 00    subl    72, %eax
  .Lend:
  100000fb7:      c3                      ret

And the (pretty verbose) generated YAML:

  ---
  Atoms:
    - StartAddress:    0x0000000100000F9C
      Size:            20
      Type:            Text
      Content:
        - Inst:            MOV64rm
          Size:            4
          Ops:             [ RRAX, RRSI, I1, R, I8, R ]
        - Inst:            MOVSX32rm8
          Size:            3
          Ops:             [ REAX, RRAX, I1, R, I0, R ]
        - Inst:            CMP32rm
          Size:            7
          Ops:             [ REAX, R, I1, R, I72, R ]
        - Inst:            JL_4
          Size:            6
          Ops:             [ I7 ]
    - StartAddress:    0x0000000100000FB0
      Size:            7
      Type:            Text
      Content:
        - Inst:            SUB32rm
          Size:            7
          Ops:             [ REAX, REAX, R, I1, R, I72, R ]
    - StartAddress:    0x0000000100000FB7
      Size:            1
      Type:            Text
      Content:
        - Inst:            RET
          Size:            1
          Ops:             [  ]
  Functions:
    - Name:            __text
      BasicBlocks:
        - Address:         0x0000000100000F9C
          Preds:           [  ]
          Succs:           [ 0x0000000100000FB7, 0x0000000100000FB0 ]
     <snip>
  ...

llvm-svn: 188890
2013-08-21 07:29:02 +00:00
NAKAMURA Takumi
7ddd728d96 lli/RecordingMemoryManager.cpp: Make it complain if _GLOBAL_OFFSET_TABLE_ were not provided.
FIXME: Would it be responsible to provide GOT?
llvm-svn: 188855
2013-08-21 02:37:14 +00:00
Alexey Samsonov
791d1b9fe4 llvm-symbolizer: add support for .gnu_debuglink section
llvm-svn: 188386
2013-08-14 17:09:30 +00:00
Arnold Schwaighofer
406976609b Remove logic that decides whether to vectorize or not depending on O-levels
I have moved this logic into clang and opt.

llvm-svn: 188281
2013-08-13 15:51:25 +00:00
Shuxin Yang
b3af4b7f36 Revert r188188 and r188200.
In order to appease people (in Apple) who accuse me for committing "huge change" (?) without proper review. 

Thank Eric for fixing a compile-warning. 

llvm-svn: 188204
2013-08-12 21:07:31 +00:00
Eric Christopher
64cf0f48c3 Fix warning about unused member.
llvm-svn: 188200
2013-08-12 20:27:50 +00:00
Shuxin Yang
4b4ff9ec1f Misc enhancements to LTO:
1. Add some helper classes for partitions. They are designed in a
     way such that the top-level LTO driver will not see much difference 
     with or without partitioning.

  2. Introduce work-dir. Now all intermediate files generated during 
     LTO phases will be saved under work-dir. User can specify the workdir
     via -lto-workdir=/path/to/dir. By default the work-dir will be 
     erased before linker exit. To keep the workdir, do -lto-keep, or -lto-keep=1.

    TODO: Erase the workdir, if the linker exit prematurely.  
      We are currently not able to remove directory on signal. The support 
      routines simply ignore directory.

  3. Add one new API lto_codegen_get_files_need_remove().
     Linker and LTO plugin will communicate via this API about which files
    (including directories) need to removed before linker exit.

llvm-svn: 188188
2013-08-12 18:29:43 +00:00
Benjamin Kramer
9fc7b995f2 Remove byte order mark from source file.
llvm-svn: 188066
2013-08-09 10:31:14 +00:00
Saleem Abdulrasool
7fcd7a910a [CodeGen] prevent abnormal on invalid attributes
Currently, when an invalid attribute is encountered on processing a .s file,
clang will abort due to llvm_unreachable.  Invalid user input should not cause
an abnormal termination of the compiler.  Change the interface to return a
boolean to indicate the failure as a first step towards improving hanlding of
malformed user input to clang.

Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
llvm-svn: 188047
2013-08-09 01:52:03 +00:00
Bill Wendling
77b4e94913 Revert r185882. This is causing problems with the gold linker and might be better handled by the linker.
llvm-svn: 188029
2013-08-08 23:51:04 +00:00
Michael J. Spencer
8cdf1cca41 [Object] Split the ELF interface into 3 parts.
* ELFTypes.h contains template magic for defining types based on endianess, size, and alignment.
* ELFFile.h defines the ELFFile class which provides low level ELF specific access.
* ELFObjectFile.h contains ELFObjectFile which uses ELFFile to implement the ObjectFile interface.

llvm-svn: 188022
2013-08-08 22:27:13 +00:00
Shuxin Yang
a9213839b0 Change public functions of LTOCodeGenerator from ret-false-on-succ to ret-true-on-succ.
As of this revision, all functions of LTOCodeGenerator are consistent in
ret-true-on-succ.

Tested on multiple OSes.

llvm-svn: 187864
2013-08-07 05:19:23 +00:00
Shuxin Yang
56f449f42c Change private functions of LTOCodeGenerator from ret-false-on-succ to ret-true-on-succ.
llvm-svn: 187819
2013-08-06 21:51:21 +00:00
Tom Stellard
e4e3be6f50 Factor FlattenCFG out from SimplifyCFG
Patch by: Mei Ye

llvm-svn: 187764
2013-08-06 02:43:45 +00:00
Shuxin Yang
2ee8d113cd Add some comment to LTOCodeGenerator class
llvm-svn: 187761
2013-08-06 00:45:32 +00:00
Michael Gottesman
9c47125a1e [bugpoint] Allow the user to specify the path to opt on the commandline.
llvm-svn: 187739
2013-08-05 21:07:07 +00:00
Benjamin Kramer
0b676328e8 Unbreak llvm-rtdyld build.
llvm-svn: 187699
2013-08-03 22:18:45 +00:00
Benjamin Kramer
d754c9514d llvm-rtdyld: Don't leak memory managers.
Dyld never outlives MemMgr, just put both on the stack.

llvm-svn: 187697
2013-08-03 22:16:31 +00:00
Hal Finkel
0047fe7d03 Fix invalid function pointers in bugpoint ExtractLoops
The ExtractLoops function tries to reduce the failing test case by extracting
one or more loops from the misoptimized piece of the program. In doing this,
ExtractLoops must keep the MiscompiledFunctions vector up-to-date by ensuring
that the pointers refer to functions in the current failing program.
Unfortunately, this is not trivial because:

 - ExtractLoops is iterative, and there are several early exits (and the
   MiscompiledFunctions vector must be consistent with the current program at
every non-fatal exit point).
 - Several of the utility functions used by ExtractLoops (such as
   TestOptimizer, some of which are called through the TestFn callback
parameter, and Linker::LinkModules) delete their inputs upon success.

This change adds several updates of the MiscompiledFunctions vector at
different points. The first is after the initial call to TestMergedProgram
which checks that the loop-extracted program still works. The second is after
the call to TestFn (TestOptimizer, for example). This function will delete its
inputs (which is why the existing ExtractLoops logic cloned the inputs first).

llvm-svn: 187674
2013-08-02 21:13:42 +00:00
Eric Christopher
f68df99874 Use @rpath for libraries rather than @executable_path on OSX.
Patch by Benjamin Scarlet!

llvm-svn: 187641
2013-08-02 01:51:52 +00:00
Bill Wendling
e7b7059f1d Use function attributes to indicate that we don't want to realign the stack.
Function attributes are the future! So just query whether we want to realign the
stack directly from the function instead of through a random target options
structure.

llvm-svn: 187618
2013-08-01 21:42:05 +00:00
Rafael Espindola
ca0a1505ba Add support for the 's' operation to llvm-ar.
If no other operation is specified, 's' becomes an operation instead of an
modifier. The s operation just creates a symbol table. It is the same as
running ranlib.

We assume the archive was created by a sane ar (like llvm-ar or gnu ar) and
if the symbol table is present, then it is current. We use that to optimize
the most common case: a broken build system that thinks it has to run ranlib.

llvm-svn: 187353
2013-07-29 12:40:31 +00:00
Tom Stellard
8e98bf332b SimplifyCFG: Use parallel-and and parallel-or mode to consolidate branch conditions
Merge consecutive if-regions if they contain identical statements.
Both transformations reduce number of branches.  The transformation
is guarded by a target-hook, and is currently enabled only for +R600,
but the correctness has been tested on X86 target using a variety of
CPU benchmarks.

Patch by: Mei Ye

llvm-svn: 187278
2013-07-27 00:01:07 +00:00