Commit Graph

52 Commits

Author SHA1 Message Date
Nicola Zaghen 3538b39ed5 [clang] Update uses of DEBUG macro to LLVM_DEBUG.
The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM

Explicitly avoided changing the strings in the clang-format tests.

Differential Revision: https://reviews.llvm.org/D44975

llvm-svn: 332350
2018-05-15 13:30:56 +00:00
Adrian Prantl c5e3647f3c -gmodules: Emit debug info for implicit module imports via #include.
When a type is only used as a template parameter and that type is the
only type imported from another #include'd module, no skeleton CU for
that module is generated, so a consumer doesn't know where to find the
type definition. By emitting an import declaration, we can force a
skeleton CU to be generated for each imported module.

rdar://problem/36266156

llvm-svn: 321754
2018-01-03 19:10:21 +00:00
Adrian Prantl 1b88acedd0 Simplify code (NFC)
llvm-svn: 321750
2018-01-03 18:31:04 +00:00
Adrian Prantl 9a1a1aa2ad Debug Info: Set the MainFileName when generating -gmodules debug info for PCM.
Previously it was uninitialized and thus always defaulted to "<stdin>".
This is mostly a cosmetic change that helps making the debug info more readable.

llvm-svn: 308397
2017-07-18 23:58:34 +00:00
Duncan P. N. Exon Smith 60fa28882e Modules: Use hash of PCM content for SIGNATURE
Change ASTFileSignature from a random 32-bit number to the hash of the
PCM content.

  - Move definition ASTFileSignature to Basic/Module.h so Module and
    ASTSourceDescriptor can use it.

  - Change the signature from uint64_t to std::array<uint32_t,5>.

  - Stop using (saving/reading) the size and modification time of PCM
    files when there is a valid SIGNATURE.

  - Add UNHASHED_CONTROL_BLOCK, and use it to store the SIGNATURE record
    and other records that shouldn't affect the hash.  Because implicit
    modules reuses the same file for multiple levels of -Werror, this
    includes DIAGNOSTIC_OPTIONS and DIAG_PRAGMA_MAPPINGS.

This helps to solve a PCH + implicit Modules dependency issue: PCH files
are handled by the external build system, whereas implicit modules are
handled by internal compiler build system.  This prevents invalidating a
PCH when the compiler overwrites a PCM file with the same content
(modulo the diagnostic differences).

Design and original patch by Manman Ren!

llvm-svn: 297655
2017-03-13 18:45:08 +00:00
Saleem Abdulrasool 888e289ed7 CodeGen: plumb header search down to the IAS
inline assembly may use the `.include` directive to include other
content into the file.  Without the integrated assembler, the `-I` group
gets passed to the assembler.  Emulate this by collecting the header
search paths and passing them to the IAS.

Resolves PR24811!

llvm-svn: 291123
2017-01-05 16:02:32 +00:00
Peter Collingbourne 77c89b6958 Bitcode: Decouple block info block state from reader.
As proposed on llvm-dev:
http://lists.llvm.org/pipermail/llvm-dev/2016-October/106630.html

Move block info block state to a new class, BitstreamBlockInfo.
Clients may set the block info for a particular cursor with the
BitstreamCursor::setBlockInfo() method.

At this point BitstreamReader is not much more than a container for an
ArrayRef<uint8_t>, so remove it and replace all uses with direct uses
of memory buffers.

Differential Revision: https://reviews.llvm.org/D26259

llvm-svn: 286207
2016-11-08 04:17:11 +00:00
Peter Collingbourne 028eb5a3f8 Bitcode: Change reader interface to take memory buffers.
As proposed on llvm-dev:
http://lists.llvm.org/pipermail/llvm-dev/2016-October/106595.html

This change also fixes an API oddity where BitstreamCursor::Read() would
return zero for the first read past the end of the bitstream, but would
report_fatal_error for subsequent reads. Now we always report_fatal_error
for all reads past the end. Updated clients to check for the end of the
bitstream before reading from it.

I also needed to add padding to the invalid bitcode tests in
test/Bitcode/. This is because the streaming interface was not checking that
the file size is a multiple of 4.

Differential Revision: https://reviews.llvm.org/D26219

llvm-svn: 285773
2016-11-02 00:08:19 +00:00
Adrian Prantl 576b2dbec5 Support object-file-wrapped modules in clang -module-file-info.
rdar://problem/24504815

llvm-svn: 279004
2016-08-17 23:13:53 +00:00
Peter Collingbourne 03f8907f65 Frontend: Simplify ownership model for clang's output streams.
This changes the CompilerInstance::createOutputFile function to return
a std::unique_ptr<llvm::raw_ostream>, rather than an llvm::raw_ostream
implicitly owned by the CompilerInstance. This in most cases required that
I move ownership of the output stream to the relevant ASTConsumer.

The motivation for this change is to allow BackendConsumer to be a client
of interfaces such as D20268 which take ownership of the output stream.

Differential Revision: http://reviews.llvm.org/D21537

llvm-svn: 275507
2016-07-15 00:55:40 +00:00
David Majnemer 59f7792136 Use more ArrayRefs
No functional change is intended, just a small refactoring.

llvm-svn: 273647
2016-06-24 04:05:48 +00:00
Benjamin Kramer cfeacf56f0 Apply clang-tidy's misc-move-constructor-init throughout Clang.
No functionality change intended, maybe a tiny performance improvement.

llvm-svn: 270996
2016-05-27 14:27:13 +00:00
David Blaikie af09f4ac72 [modules][debuginfo] Only include imported modules when targeting LLDB
These constructs are only applicable to a debugger capable of loading a
Clang AST, so omit them for brevity when not doing so.

We could potentially propagate more of CodeGenOptions through the
ObjectFilePCGContainerOperations for consistency (so the next person who
adds some CodeGenOpts feature that tweaks debug info output doesn't get
caught by this), so I'm open to objections/alternatives there, but went
with this for now.

Tested just a couple of basic cases (one direct, one indirect (through
the ObjectFilePCHContainerOperations) & fixed up other cases to pass the
-debugger-tuning flag as appropriate.

llvm-svn: 268460
2016-05-03 23:06:40 +00:00
Saleem Abdulrasool 10a4972a8d revert SVN r265702, r265640
Revert the two changes to thread CodeGenOptions into the TargetInfo allocation
and to fix the layering violation by moving CodeGenOptions into Basic.
Code Generation is arguably not particularly "basic".  This addresses Richard's
post-commit review comments.  This change purely does the mechanical revert and
will be followed up with an alternate approach to thread the desired information
into TargetInfo.

llvm-svn: 265806
2016-04-08 16:52:00 +00:00
Saleem Abdulrasool 94cfc603d1 Basic: move CodeGenOptions from Frontend
This is a mechanical move of CodeGenOptions from libFrontend to libBasic.  This
fixes the layering violation introduced earlier by threading CodeGenOptions into
TargetInfo.  It should also fix the modules based self-hosting builds.  NFC.

llvm-svn: 265702
2016-04-07 17:49:44 +00:00
Adrian Prantl 5a9a42778a Module Debugging: Fix a crash when emitting debug info for nested tag types
whose DeclContext is not yet complete by deferring their emission.

rdar://problem/24918680

llvm-svn: 262851
2016-03-07 20:58:52 +00:00
James Y Knight b214cbc785 Make TargetInfo store an actual DataLayout instead of a string.
Use it to calculate UserLabelPrefix, instead of specifying it (often
incorrectly).

Note that the *actual* user label prefix has always come from the
DataLayout, and is handled within LLVM. The main thing clang's
TargetInfo::UserLabelPrefix did was to set the #define value. Having
these be different from each-other is just silly.

Differential Revision: http://reviews.llvm.org/D17183

llvm-svn: 262737
2016-03-04 19:00:41 +00:00
Benjamin Kramer 8c30592e18 Move DebugInfoKind into its own header to cut the cyclic dependency edge from Driver to Frontend.
llvm-svn: 259489
2016-02-02 11:06:51 +00:00
Adrian Prantl 3a2d4947a6 Module Debugging: Canonicalize the file names used as PCH module names
by stripping the path. Follow-up to r258555.

This is safe because only one PCH per CU is currently supported for
module debugging.

rdar://problem/24301262

llvm-svn: 258582
2016-01-22 23:30:56 +00:00
Adrian Prantl aa5d08d04b Module debugging: Create a parent DIModule with the PCH name for types
emitted into a precompiled header to mirror the debug info emitted for
object files importing the PCH.

rdar://problem/24290667

llvm-svn: 258555
2016-01-22 21:14:41 +00:00
Adrian Prantl 98bfc82c39 Fix the build by using the correct suffix for 64 bit literals
llvm-svn: 258531
2016-01-22 19:29:41 +00:00
Adrian Prantl ae108c4704 Fix a typo in r258507 and change the PCH dwoid constant to ~1UL.
rdar://problem/24290667

llvm-svn: 258519
2016-01-22 18:46:45 +00:00
Adrian Prantl c96da8faa6 Module Debugging: Use a nonzero DWO id for precompiled headers.
PCH files don't have a module signature and LLVM uses a nonzero DWO id as
an indicator for skeleton / module CUs. This change pins the DWO id for PCH
files to a known constant value.
The correct long-term solution here is to implement a module signature
that is an actual dterministic hash (at the moment module signatures are
just random nonzero numbers) and then enable this for PCH files as well.

<rdar://problem/24290667>

llvm-svn: 258507
2016-01-22 17:43:43 +00:00
Adrian Prantl cd975018fe Module Debugging: Make sure that anonymous tag decls that define global
variables are visited.

This shouldn't encourage anyone to put global variables into clang modules.
rdar://problem/24199640

llvm-svn: 258250
2016-01-19 23:42:44 +00:00
Adrian Prantl e5238d2a82 Module Debugging: Defer the emission of anonymous tag decls
until we are visiting their declcontext.

This fixes a regression introduced in r256962:
When building debug info for a typdef'd anonymous tag type, we would be
visiting the inner anonymous type first thus creating a "typedef changes
linkage of anonymous type, but linkage was already computed" error.

rdar://problem/24199640

llvm-svn: 258152
2016-01-19 18:02:47 +00:00
Adrian Prantl b3b821f1df Module debugging: Defer emitting tag types until their definition
was visited and all decls have been merged.

We only get a single chance to emit the types for virtual classes because
CGDebugInfo::completeRequiredType() categorically doesn't complete them.

llvm-svn: 256962
2016-01-06 19:22:19 +00:00
Adrian Prantl d43fe0bd39 Module Debugging: Emit module debug info for types inside of Objective-C
containers.

rdar://problem/23196170

llvm-svn: 251120
2015-10-23 17:02:22 +00:00
Adrian Prantl abdd6fc48d Remove a redundant check. NFC
llvm-svn: 251116
2015-10-23 16:51:32 +00:00
Adrian Prantl a5206ce72a Module Debugging: Use the clang module signature as the module's dwo_id
when building a module. Clang already records the module signature when
building a skeleton CU to reference a clang module.

Matching the id in the skeleton with the one in the module allows a DWARF
consumer to verify that they found the correct version of the module
without them needing to know about the clang module format.

llvm-svn: 248345
2015-09-22 23:26:43 +00:00
Adrian Prantl 85d938aadb Debug Info: When building a module, emit skeleton CUs for imported modules.
llvm-svn: 248184
2015-09-21 17:48:37 +00:00
Adrian Prantl 9402cef0ae Module debugging: Support submodules in the PCM/PCH debug info.
llvm-svn: 248127
2015-09-20 16:51:35 +00:00
Adrian Prantl 1e63b2bdc3 Further simplify the interface of PCHContainerGenerator
by dropping the const qualifier on the CI.

NFC

llvm-svn: 248101
2015-09-19 21:42:52 +00:00
Adrian Prantl 8bd4c13f67 Eliminate a redundant check.
llvm-svn: 248068
2015-09-19 00:10:25 +00:00
Adrian Prantl 0391406e95 Simplify the interface of PCHContainerGenerator and friends
by passing in a CompilerInstance instead of all its individual members.

NFC.

llvm-svn: 248053
2015-09-18 22:10:59 +00:00
Adrian Prantl 54a3457fe1 Debug Info: Remove an unnecessary debug type visitor.
Thanks to dblaikie for spotting this.

llvm-svn: 247303
2015-09-10 17:13:31 +00:00
Hans Wennborg 7eb5464bc5 Re-commit r247218: "Fix Clang-tidy misc-use-override warnings, other minor fixes"
This never broke the build; it was the LLVM side, r247216, that caused problems.

llvm-svn: 247302
2015-09-10 17:07:54 +00:00
Hans Wennborg e89c8c8033 Revert r247218: "Fix Clang-tidy misc-use-override warnings, other minor fixes"
Seems it broke the Polly build.
From http://lab.llvm.org:8011/builders/perf-x86_64-penryn-O3-polly-fast/builds/11687/steps/compile/logs/stdio:

In file included from /home/grosser/buildslave/perf-x86_64-penryn-O3-polly-fast/llvm.src/lib/TableGen/Record.cpp:14:0:
/home/grosser/buildslave/perf-x86_64-penryn-O3-polly-fast/llvm.src/include/llvm/TableGen/Record.h:369:3: error: looser throw specifier for 'virtual llvm::TypedInit::~TypedInit()'
/home/grosser/buildslave/perf-x86_64-penryn-O3-polly-fast/llvm.src/include/llvm/TableGen/Record.h:270:11: error:   overriding 'virtual llvm::Init::~Init() noexcept (true)'

llvm-svn: 247222
2015-09-10 00:37:18 +00:00
Hans Wennborg 60f3e1f466 Fix Clang-tidy misc-use-override warnings, other minor fixes
Patch by Eugene Zelenko!

Differential Revision: http://reviews.llvm.org/D12741

llvm-svn: 247218
2015-09-10 00:24:40 +00:00
Adrian Prantl 748a6cd1ac Module Debugging: Emit debug type information into clang ObjC modules.
When -fmodule-format is set to "obj", emit debug info for all types
declared in a module or referenced by a declaration into the module's
object file container.

This patch adds support for Objective-C types and methods.

llvm-svn: 247068
2015-09-08 20:41:52 +00:00
Adrian Prantl 4aa2b3a311 Module Debugging: Emit debug type information into clang modules.
When -fmodule-format is set to "obj", emit debug info for all types
declared in a module or referenced by a declaration into the module's
object file container.

This patch adds support for C and C++ types.

llvm-svn: 247049
2015-09-08 19:20:27 +00:00
Adrian Prantl 6b21ab21d1 Add a -gmodules option to the driver and a -dwarf-ext-refs to cc1
to enable the use of external type references in the debug info
(a.k.a. module debugging).

The driver expands -gmodules to "-g -fmodule-format=obj -dwarf-ext-refs"
and passes that to cc1. All this does at the moment is set a flag
codegenopts.

http://reviews.llvm.org/D11958

llvm-svn: 246192
2015-08-27 19:46:20 +00:00
Richard Smith 293534b1a5 Initialize the AST consumer as soon as we have both an ASTConsumer and an
ASTContext. Fixes some cases where we could previously initialize the AST
consumer more than once.

llvm-svn: 245346
2015-08-18 20:39:29 +00:00
Yaron Keren 556b21aa10 Remove and forbid raw_svector_ostream::flush() calls.
After r244870 flush() will only compare two null pointers and return,
doing nothing but wasting run time. The call is not required any more
as the stream and its SmallString are always in sync.

Thanks to David Blaikie for reviewing.

llvm-svn: 244928
2015-08-13 18:12:56 +00:00
Richard Smith 0f99d6a441 [modules] PR22534: Load files specified by -fmodule-file= eagerly. In particular, this avoids the need to re-parse module map files when using such a module.
llvm-svn: 244416
2015-08-09 08:48:41 +00:00
Eric Christopher 964a5f3b5c Rename DescriptionString -> DataLayoutString as it matches the actual
use of the string.

llvm-svn: 244178
2015-08-05 23:48:05 +00:00
Mehdi Amini ca3cf9e6ff LLVM API Change: the Module always owns the DataLayout
From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 243115
2015-07-24 16:04:29 +00:00
Adrian Prantl fb2398d0c4 Make the clang module container format selectable from the command line.
- introduces a new cc1 option -fmodule-format=[raw,obj]
  with 'raw' being the default
- supports arbitrary module container formats that libclang is agnostic to
- adds the format to the module hash to avoid collisions
- splits the old PCHContainerOperations into PCHContainerWriter and
  a PCHContainerReader.

Thanks to Richard Smith for reviewing this patch!

llvm-svn: 242499
2015-07-17 01:19:54 +00:00
Adrian Prantl 5a88e1a8c6 Rename ModuleContainerGenerator to PCHContainergenerator for consistency
and re-clang-format (NFC).

llvm-svn: 241841
2015-07-09 19:46:39 +00:00
Adrian Prantl bc068586ac Revert "Revert r241620 and follow-up commits" and move the initialization
of the llvm targets from clang/CodeGen into ClangCheck.cpp and CIndex.cpp.

llvm-svn: 241653
2015-07-08 01:00:30 +00:00
Adrian Prantl 142ec39739 Revert r241620 and follow-up commits while investigating linux buildbot failures.
llvm-svn: 241642
2015-07-07 23:19:46 +00:00