Commit Graph

704 Commits

Author SHA1 Message Date
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
David Majnemer 38a50c0a16 [Sema] Emit a better diagnostic when variable redeclarations disagree
We referred to all declaration in definitions in our diagnostic messages
which is can be inaccurate.  Instead, classify the declaration and emit
an appropriate diagnostic for the new declaration and an appropriate
note pointing to the old one.

This fixes PR24116.

llvm-svn: 242190
2015-07-14 20:08:49 +00:00
Richard Smith 8a53a0ddbd Add file missed from r242105.
llvm-svn: 242109
2015-07-14 02:40:33 +00:00
Richard Smith ae6df27ef4 [modules] When diagnosing errors in module map files found by 'extern module' declarations, show how we got to that module map file.
llvm-svn: 242105
2015-07-14 02:06:01 +00:00
Ben Langmuir 75a7e43581 [Modules] Allow missing header before a missing requirement
And make the module unavailable without breaking any parent modules.

If there's a missing requirement after we've already seen a missing
header, still update the IsMissingRequiement bit correctly.  Also,
diagnose missing requirements before missing headers, since the
existence of the header is moot if there are missing requirements.

llvm-svn: 242055
2015-07-13 19:48:52 +00:00
Richard Smith e70dadd67b [modules] When checking the include guard for a header, check whether it's
visible in the module we're considering entering. Previously we assumed that if
we knew the include guard for a modular header, we'd already parsed it, but
that need not be the case if a header is present in the current module and one
of its dependencies; the result of getting this wrong was that the current
module's submodule for the header would end up empty.

llvm-svn: 241953
2015-07-10 22:27:17 +00:00
Richard Smith 8692a4d199 [modules] Fix "prefer own module over others" rule when selecting a module for a header to work in the presence of module hierarchy.
llvm-svn: 241936
2015-07-10 20:09:49 +00:00
Richard Smith b1d8ea4635 [modules] Fix merging support for forward-declared enums with fixed underlying types. A visible declaration is enough to make the type complete, but not enough to make the definition visible.
llvm-svn: 241743
2015-07-08 21:49:31 +00:00
Richard Smith 696e812bb3 [modules] Fix crash when writing an update record for a redeclaration of an empty namespace.
llvm-svn: 241732
2015-07-08 21:15:32 +00:00
Richard Smith 7a591a4a46 [modules] When determining the visible module set during template
instantiation, use the set of modules visible from the template definition, not
from whichever declaration the specialization was instantiated from.

llvm-svn: 241662
2015-07-08 02:22:15 +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
Adrian Prantl 726855a8da Update testcases that use precompiled headers to require a target after
r241620.

llvm-svn: 241623
2015-07-07 20:31:18 +00:00
Adrian Prantl e50371b948 Wrap clang modules and pch files in an object file container.
This patch adds ObjectFilePCHContainerOperations uses the LLVM backend
to put the contents of a PCH into a __clangast section inside a COFF, ELF,
or Mach-O object file container.

This is done to facilitate module debugging by makeing it possible to
store the debug info for the types defined by a module alongside the AST.

rdar://problem/20091852

llvm-svn: 241620
2015-07-07 20:11:29 +00:00
NAKAMURA Takumi 258c068008 Mark clang/test/Modules/signal.m as REQUIRES:crash-recovery.
llvm-svn: 241421
2015-07-05 23:00:44 +00:00
Ben Langmuir a525400d37 [Modules] Be consistent about finding a module for framework headers
We use findModuleForHeader() in several places, but in header search we
were not calling it when a framework module didn't show up with the
expected name, which would then lead to unexpected non-modular includes.
Now we will find the module unconditionally for frameworks.  For regular
frameworks, we use the spelling of the module name from the module map
file, and for inferred ones we use the canonical directory name.

In the future we might want to lock down framework modules sufficiently
that these name mismatches cannot happen.

rdar://problem/20465870

llvm-svn: 241258
2015-07-02 13:19:48 +00:00
Richard Smith da6c234c39 [modules] Merging support for specializations of a function template. This very
rarely matters, but can affect whether two dependent types are canonically
equivalent.

llvm-svn: 241207
2015-07-01 23:19:58 +00:00
Richard Smith 5327b89001 [modules] Don't make out-of-line member specializations of an instantiated
class template specialization visible just because the class template
specialization's definition is visible.

llvm-svn: 241182
2015-07-01 19:32:54 +00:00
Richard Smith 04c6c1f3a5 [modules] Skip trailing attributes when skipping a class definition during parse-merging.
llvm-svn: 241180
2015-07-01 18:56:50 +00:00
Richard Smith 7655381aa1 [modules] Don't require the 'inline' specifier when merging an inline function;
any source of the inline nature is sufficient.

llvm-svn: 241146
2015-07-01 07:24:18 +00:00
Richard Smith 2aedca340c [modules] Before checking whether the controlling macro of a header is defined,
update the identifier in case we've imported a definition of the macro (and
thus the contents of the header) from a module.

Also fold ExternalIdentifierLookup into ExternalPreprocessorSource; it no longer
makes sense to keep these separate now that the only user of the former also
needs the latter.

llvm-svn: 241137
2015-07-01 02:29:35 +00:00
Richard Smith 4df6093ca3 [modules] Make sure macros get made visible in the top-level file if we've got
local submodule visibility enabled; that top-level file might not actually be
the module includes buffer if use of prebuilt modules is disabled.

llvm-svn: 241120
2015-06-30 21:29:55 +00:00
Adrian Prantl 324c03fe83 Update testcases: DICompileUnits are now created distinct by DIBuilder.
llvm-svn: 241098
2015-06-30 18:32:50 +00:00
Adrian Prantl d9f09858a4 Relax this test so it also works on platforms that use characters other
than forward slashes as path separators.

llvm-svn: 241090
2015-06-30 18:05:46 +00:00
Adrian Prantl c4bb47e301 Debug Info: Emit debug info for @import declarations.
This allows a module-aware debugger such as LLDB to import the currently
visible modules before dropping into the expression evaluator.

rdar://problem/20965932

llvm-svn: 241084
2015-06-30 17:39:51 +00:00
NAKAMURA Takumi 886fbad410 Fix a couple of tests in clang/test to match "x86_thiscallcc" introduced in r240971.
llvm-svn: 241047
2015-06-30 08:02:26 +00:00
David Blaikie ea3e51d73f Account for calling convention specifiers in function definitions in IR test cases
Several tests wouldn't pass when executed on an armv7a_pc_linux triple
due to the non-default arm_aapcs calling convention produced on the
function definitions in the IR output. Account for this with the
application of a little regex.

Patch by Ying Yi.

llvm-svn: 240971
2015-06-29 17:29:50 +00:00
Ben Langmuir 51e3d7b2e0 [Modules] Test lock file removed on signal
For r240967.

rdar://problem/21512307

llvm-svn: 240968
2015-06-29 17:09:24 +00:00
Richard Smith 1e02a5aac8 [modules] Properly merge visibility of class definitions that got merged while
parsing then merged again when the module was loaded.

llvm-svn: 240700
2015-06-25 21:42:33 +00:00
Ben Langmuir cd98cb7312 [Modules] Consider -fmodule-feature in module hash and when loading
Any extra features from -fmodule-feature are part of the module hash and
need to get validated on load.  Also print them with -module-file-info.

llvm-svn: 240433
2015-06-23 18:20:18 +00:00
Daniel Jasper 1758a9f1f7 Write output file to temp directory. The tests shouldn't assume that
they can write to the current working directory.

llvm-svn: 240388
2015-06-23 09:26:37 +00:00
NAKAMURA Takumi 4a8917be84 Tweak clang/test/Modules/modules-with-same-name.m to run with GnuWin32's find.exe on newer version of Windows.
It seems "*.pcm" would be expanded with current directory by NTOS 6.x's msvcrt. GnuWin32 utils are affected.
To avoid the issue, put an expression that msvcrt's glob won't match, like "*.pc[m]".

llvm-svn: 240387
2015-06-23 08:37:21 +00:00
Richard Smith 2f633e7c3c [modules] When building a module, if there are multiple matches for a header
file in the loaded module maps and one of them is from the current module,
that's the right match.

llvm-svn: 240350
2015-06-22 22:20:47 +00:00
Richard Smith 529ecb237a [modules] Add a flag to disable the feature that permits conflicting redefinitions of internal-linkage symbols that are not visible.
Such conflicts are an accident waiting to happen, and this feature conflicts
with the desire to include existing headers into multiple modules and merge the
results. (In an ideal world, it should not be possible to export internal
linkage symbols from a module, but sadly the glibc and libstdc++ headers
provide 'static inline' functions in a few cases.)

llvm-svn: 240335
2015-06-22 21:15:01 +00:00
Richard Smith beb44788b3 [modules] When determining whether a definition of a class is visible, check all modules even if we've already found a definition that's not visible.
llvm-svn: 240204
2015-06-20 01:05:19 +00:00
Richard Smith 86dfc1eafd [modules] Merging support for enums with a local definition prior to the first
imported definition.

llvm-svn: 240068
2015-06-18 22:07:00 +00:00
Richard Smith 75ea855fd7 [modules] Ensure that if we merge the definitions of two enumerations, that
making either of them visible makes the merged definition visible.

llvm-svn: 239969
2015-06-17 23:07:50 +00:00
Richard Smith afe800c456 [modules] Fix typo in default argument merging.
llvm-svn: 239954
2015-06-17 22:13:23 +00:00
Richard Smith 63e09bf70b [modules] If we merge a template, also track that its parameters are merged so
that we know when its default arguments should be visible.

llvm-svn: 239936
2015-06-17 20:39:41 +00:00
Richard Smith 35c1df5cb6 [modules] Improve diagnostic for a template-id that's invalid because a default
argument is not visible.

llvm-svn: 239934
2015-06-17 20:16:32 +00:00
Richard Smith 5293379374 [modules] Fix merging of default template arguments onto friend templates.
Previously we'd complain about redefinition of default arguments when we
instantiated a class with a friend template that inherits its default argument,
because we propagate the default template arguemnt onto the friend when we
reload the AST.

llvm-svn: 239857
2015-06-16 21:57:05 +00:00
Colin LeMahieu fef7dd04a4 [Hexagon] unused-local-typedef warning test is passing.
llvm-svn: 239832
2015-06-16 17:32:45 +00:00
Richard Smith 47972afd10 [modules] Simplify -cc1 interface for enabling implicit module maps.
We used to have a flag to enable module maps, and two more flags to enable
implicit module maps. This is all redundant; we don't need any flag for
enabling module maps in the abstract, and we don't usually have -fno- flags for
-cc1. We now have just a single flag, -fimplicit-module-maps, that enables
implicitly searching the file system for module map files and loading them.

The driver interface is unchanged for now. We should probably rename
-fmodule-maps to -fimplicit-module-maps at some point.

llvm-svn: 239789
2015-06-16 00:08:24 +00:00
Richard Smith 72bfb8e234 [modules] Re-enable accidentally-disabled test.
llvm-svn: 239783
2015-06-15 23:39:16 +00:00
Reid Kleckner 2c901d4859 Fix submodule test to pass on content addressable filesystems where inodes would collide
llvm-svn: 239765
2015-06-15 21:21:17 +00:00
Richard Smith f2b1eb9eb2 [modules] Better support for redefinitions of an entity from the same module.
Support this across module save/reload and extend the 'missing import'
diagnostics with a list of providing modules.

llvm-svn: 239750
2015-06-15 20:15:48 +00:00
Richard Smith a1431077de [modules] Apply name visibility rules to names found by ADL.
llvm-svn: 239578
2015-06-12 01:32:13 +00:00
Richard Smith c785276b92 [modules] Fix crash with multiple levels of default template argument merging.
llvm-svn: 239575
2015-06-11 23:46:11 +00:00
Richard Smith 0f192e8940 [modules] Fix assert/crash when parsing and merging a definition of a class with a base-specifier inside a namespace.
llvm-svn: 239569
2015-06-11 22:48:25 +00:00
Richard Smith 00be6d0ff8 [modules] Fix a few places where merging wasn't performed if modules was disabled but local module visibilty was enabled.
llvm-svn: 239504
2015-06-11 03:05:39 +00:00