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Include headermaps (.hmap files) in the .cache directory and
add VFS entries. All headermaps are known after HeaderSearch
setup, collect them right after.
rdar://problem/27913709
llvm-svn: 289360
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which guarantee pointers are not null. These all seem to have useful
properties and correlations to document, in one case we even had it in
a comment but now it will also be an assert.
This should prevent PVS-Studio from incorrectly claiming that there are
a bunch of potential bugs here. But I feel really strongly that the
PVS-Studio warnings that pointed at this code have a far too high
false-positive rate to be entirely useful. These are just places where
there did seem to be a useful invariant to document and verify with an
assert. Several other places in the code were already correct and
already have perfectly clear code documenting and validating their
invariants, but still ran afoul of PVS-Studio.
llvm-svn: 285985
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The 'no_undeclared_includes' attribute should be used in a module to
tell that only non-modular headers and headers from used modules are
accepted.
The main motivation behind this is to prevent dep cycles between system
libraries (such as darwin) and libc++.
Patch by Richard Smith!
llvm-svn: 284797
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llvm-svn: 283856
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llvm-svn: 283815
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llvm-svn: 283043
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In this mode, there is no need to load any module map and the programmer can
simply use "@import" syntax to load the module directly from a prebuilt
module path. When loading from prebuilt module path, we don't support
rebuilding of the module files and we ignore compatible configuration
mismatches.
rdar://27290316
Differential Revision: http://reviews.llvm.org/D23125
llvm-svn: 279096
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Summary: Removed unused headers, replaced some headers with forward class declarations
Patch by: Eugene <claprix@yandex.ru>
Differential Revision: https://reviews.llvm.org/D20100
llvm-svn: 275882
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non-portable #include and #import paths.
Differential Revision: http://reviews.llvm.org/D19843
Corresponding LLVM change: http://reviews.llvm.org/D19842
Re-commit of r272562 after addressing clang-x86-win2008-selfhost failure.
llvm-svn: 272584
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llvm-svn: 272572
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non-portable #include and #import paths.
Differential Revision: http://reviews.llvm.org/D19843
Corresponding LLVM change: http://reviews.llvm.org/D19842
Re-commit after addressing issues with of generating too many warnings for Windows and asan test failures.
Patch by Eric Niebler
llvm-svn: 272562
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llvm-svn: 271761
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non-portable #include and #import paths.
Differential Revision: http://reviews.llvm.org/D19843
Corresponding LLVM change: http://reviews.llvm.org/D19842
Patch by Eric Niebler
llvm-svn: 271708
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No functionality change intended, maybe a tiny performance improvement.
llvm-svn: 270996
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llvm-svn: 269794
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If we are processing a #include from a module build, we should treat it
as a system header if we're building a system module. Passing an optional
flag to HeaderSearch::LookupFile.
Before this, the testing case will crash when accessing a freed FileEntry.
rdar://26214027
llvm-svn: 269730
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Clang performs directory walk while searching headers inside modules by
using the ::sys::fs instead of ::vfs. This prevents any code that uses
the VFS (e.g, reproducer scripts) to actually find such headers, since
the VFS will never be searched for those.
Change these places to use vfs::recursive_directory_iterator and
vfs::directory_iterator instead.
Differential Revision: http://reviews.llvm.org/D20266
rdar://problem/25880368
llvm-svn: 269661
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Was causing warnings during the build.
llvm-svn: 267805
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the current language doesn't have an import syntax and we can figure out a
suitable file to include.
llvm-svn: 267802
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While transient and only used during parsing, LocInfoTypes are still used
from ASTDumper and are part of the AST.
llvm-svn: 259376
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of the file name. This is consistent with how other HeaderSearchOptions
are handled.
Due to the other inputs of the module hash (revision number) this is not
really testable in a meaningful way.
llvm-svn: 257520
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Fixes PR25262
llvm-svn: 250844
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Summary: It breaks the build for the ASTMatchers
Subscribers: klimek, cfe-commits
Differential Revision: http://reviews.llvm.org/D13893
llvm-svn: 250827
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Summary: Replace empty bodies of default constructors and destructors with '= default'.
Reviewers: bkramer, klimek
Subscribers: klimek, alexfh, cfe-commits
Differential Revision: http://reviews.llvm.org/D13890
llvm-svn: 250822
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requesting module. No functionality change.
llvm-svn: 250554
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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
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HeaderFileInfos for all files we've seen in this compilation.
llvm-svn: 245881
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modules for a header, not just the current favourite.
llvm-svn: 245390
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when building with implicit modules disabled.
llvm-svn: 245136
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module cache has been provided, rather than creating one in the current
directory.
llvm-svn: 242819
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- 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
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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
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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
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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
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re-entering a modular header.
When we do the include guard check, we're in the visibility state for the file
with the #include; the include guard may not be visible there, but we don't
actually need it to be: if we've already parsed the submodule we're considering
entering, it's always safe to skip it.
llvm-svn: 241135
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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
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modules is disabled, track submodule visibility anyway if -fmodules-local-submodule-visibility is enabled. This, in effect, gives modules semantics but without precompilation.
llvm-svn: 237550
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This reverts commit 9242ff16b0460b488691fd70b42a2bf81a531e3a.
llvm-svn: 236806
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llvm-svn: 236804
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Modules builds fundamentally have a non-linear macro history. In the interest
of better source fidelity, represent the macro definition information
faithfully: we have a linear macro directive history within each module, and at
any point we have a unique "latest" local macro directive and a collection of
visible imported directives. This also removes the attendent complexity of
attempting to create a correct MacroDirective history (which we got wrong
in the general case).
No functionality change intended.
llvm-svn: 236176
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Now that SmallString is a first-class citizen, most SmallString::str()
calls are not required. This patch removes a whole bunch of them, yet
there are lots more.
There are two use cases where str() is really needed:
1) To use one of StringRef member functions which is not available in
SmallString.
2) To convert to std::string, as StringRef implicitly converts while
SmallString do not. We may wish to change this, but it may introduce
ambiguity.
llvm-svn: 232622
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This would cause frameworks to have spurious "redefinition" errors if
they had both a (legacy) "module.map" and a (new) "module.modulemap" file and we
happened to do a sub-directory search in that directory using a
non-framework include path (e.g. -Ifoo/ -Ffoo/). For migration
purposes it's very handy that the compiler will prefer the new spelling
of the filename and not look at the old one if it doesn't need to.
llvm-svn: 230308
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While I investigate some possible problems with this patch.
This reverts commit r228966
llvm-svn: 229910
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When mangling the module map path into a .pcm file name, also mangle the
IsSystem bit, which can also depend on the header search paths. For
example, the user may change from -I to -isystem. This can affect
diagnostics in the importing TU.
llvm-svn: 228966
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components. These sometimes get synthetically added, and we don't want -Ifoo
and -I./foo to be treated fundamentally differently here.
llvm-svn: 224055
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Original commit message:
[modules] Add experimental -fmodule-map-file-home-is-cwd flag to -cc1.
For files named by -fmodule-map-file=, and files found by 'extern module'
directives, this flag specifies that we should resolve filenames relative to
the current working directory rather than relative to the directory in which
the module map file resides. This is aimed at fixing path handling, in
particular for relative -I paths, when building modules that represent
components of the current project (rather than libraries installed on the
current system, which the current project has as dependencies, where we'd
typically expect the module map files to be looked up implicitly).
llvm-svn: 223913
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This reverts commit r223753. It broke the Green Dragon build for a few
hours:
http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA-incremental_build/2259/
http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA-incremental_build/2259/consoleFull#43901905849ba4694-19c4-4d7e-bec5-911270d8a58c
I suspect `clang-tools-extra` just needs a follow-up for an API change,
but I'm not the right one to look into it.
llvm-svn: 223759
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For files named by -fmodule-map-file=, and files found by 'extern module'
directives, this flag specifies that we should resolve filenames relative to
the current working directory rather than relative to the directory in which
the module map file resides. This is aimed at fixing path handling, in
particular for relative -I paths, when building modules that represent
components of the current project (rather than libraries installed on the
current system, which the current project has as dependencies, where we'd
typically expect the module map files to be looked up implicitly).
llvm-svn: 223753
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diagnostics if they don't exist. Based on a patch by John Thompson!
llvm-svn: 223561
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map path more canonical before hashing it. No functionality change.
llvm-svn: 223547
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