Sanjay Patel [Fri, 22 May 2015 21:42:10 +0000 (21:42 +0000)]
add the -mrecip driver flag and process its options
This is the front-end counterpart to D8982 (LLVM r238051).
The -mrecip option interface is based on maintaining compatibility with gcc:
https://gcc.gnu.org/onlinedocs/gcc-4.9.2/gcc/i386-and-x86-64-Options.html#index-mrecip_003dopt-1627
https://gcc.gnu.org/onlinedocs/gcc-4.9.2/gcc/RS_002f6000-and-PowerPC-Options.html#index-mrecip-2289
...while adding more functionality (allowing users to specify the number of refinement steps for each
estimate type).
David Majnemer [Fri, 22 May 2015 05:49:41 +0000 (05:49 +0000)]
[Sema] Don't crash on out-of-line virtual constexpr functions
The method wasn't an overrider but didn't have 'virtual' textually
written because our CXXMethodDecl was an out-of-line definition. Make
sure we use the canonical decl instead.
Faisal Vali [Fri, 22 May 2015 01:11:10 +0000 (01:11 +0000)]
"This adds -fconcepts-ts as a cc1 option for enabling the
in-progress implementation of the Concepts TS. The recommended feature
test macro __cpp_experimental_concepts is set to 1 (as opposed to
201501) to indicate that the feature is enabled, but the
implementation is incomplete.
The link to the Concepts TS in cxx_status is updated to refer to the
PDTS (N4377). Additional changes related to __has_feature and
__has_extension are to follow in a later change.
Relevant tests include:
test/Lexer/cxx-features.cpp
The test file is updated with testing of the C++14 + Concepts TS mode.
The expected behaviour is the same as that of the C++14 modes except
for the case of __cpp_experimental_concepts."
- Hubert Tong.
Being committed for Hubert (as per his understanding with Richard Smith) as we start work on the concepts-ts following our preliminary strategy session earlier today.
Douglas Gregor [Thu, 21 May 2015 18:28:18 +0000 (18:28 +0000)]
Itanium mangler: don't trip an assertion when unresolved members have implicit bases.
When we find a member of the current instantation, the base of the
unresolved member expression is implicit; use nullptr for such
bases. This is not a change in behavior: the AST already contains null
in such cases, so non-asserts builds do the right thing already. Fixes
rdar://problem/21020559.
Manuel Klimek [Thu, 21 May 2015 12:23:34 +0000 (12:23 +0000)]
clang-format: [JS] Better support for fat arrows.
Assigns a token type (TT_JsFatArrow) to => tokens, and uses that to
more easily recognize and format fat arrow functions.
Improves function parsing to better recognize formal parameter
lists and return type declarations.
Recognizes arrow functions and parse function bodies as child blocks.
John Brawn [Thu, 21 May 2015 12:19:49 +0000 (12:19 +0000)]
[ARM] Restructure cpu handling in the driver to mostly use the triple
Using the target cpu to determine some behaviour is sprinkled in
several places in the driver, but in almost all the information that
is needed can be found in the triple. Restructure things so that the
triple is used, and the cpu is only used if the exact cpu name is
needed.
Also add a check that the -mcpu argument is valid, and correct the
-march argument checking so that it handles -march=native correctly. I
would have liked to move these checks into the computation of the
triple, but the triple is calculated several times in several places
and that would lead to multiple error messages for the same thing.
Alexey Bataev [Thu, 21 May 2015 07:59:51 +0000 (07:59 +0000)]
[OPENMP] Fixed codegen for lastprivate LCV in worksharing constructs.
If loop control variable in a worksharing construct is marked as lastprivate, we should copy last calculated value of private counter back to original variable.
Richard Smith [Thu, 21 May 2015 01:20:10 +0000 (01:20 +0000)]
[modules] If we re-enter a submodule from within itself (when submodule
visibility is enabled) or leave and re-enter it, restore the macro and module
visibility state from last time we were in that submodule.
This allows mutually-#including header files to stand a chance at being
modularized with local visibility enabled.
Alexey Samsonov [Thu, 21 May 2015 01:07:52 +0000 (01:07 +0000)]
[Driver] Improve unused-argument diagnostic for extra sanitizer features.
Don't print unused-argument warning for sanitizer-specific feature flag
if this sanitizer was eanbled, and later disabled in the command line.
For example, now:
clang -fsanitize=address -fsanitize-coverage=bb -fno-sanitize=address a.cc
doesn't print warning, but
clang -fsanitize-coverage=bb
does. Same holds for -fsanitize-address-field-padding= and
-fsanitize-memory-track-origins= flags.
Reid Kleckner [Thu, 21 May 2015 00:13:09 +0000 (00:13 +0000)]
Rename a helper template function to 'bytes' to avoid a C++17 STL conflict
MSVC 2015 includes the std::data() template function added to C++17. ADL
causes both cl.exe and clang-cl to prefer std::data over our static
helper here, and we get errors about converting int64_t* to StringRef.
Renaming it to bytes avoids the ambiguity.
Reid Kleckner [Thu, 21 May 2015 00:12:53 +0000 (00:12 +0000)]
Work around overloading bug in MSVC 2015
MSVC 2015 appears to be unable to find the correct operator== here. I
haven't yet filed a bug with Microsoft as I've been unable to create a
reduced test case.
Richard Trieu [Wed, 20 May 2015 23:29:18 +0000 (23:29 +0000)]
Check for bool-like conversion in conditional expressions.
Add a check for bool-like conversions for the condition expression of
conditional operators. This is similiar to the checking of condition
expressions of if statements, for-loops, while-loops, and do-while loops.
Specificially, this is to fix the problem of assert("message") not triggering
-Wstring-conversion when the assert macro uses a conditional operator.
Richard Smith [Wed, 20 May 2015 22:48:44 +0000 (22:48 +0000)]
[OpenMP] Make default OpenMP library (the one selected with just -fopenmp)
configurable in the CMake build. There shouldn't be any change in default
behavior.
Justin Bogner [Wed, 20 May 2015 16:16:23 +0000 (16:16 +0000)]
InstrProf: Increment the profile counter for all types of destructor
-fprofile-instr-generate does not emit counter increment intrinsics
for Dtor_Deleting and Dtor_Complete destructors with assigned
counters. This causes unnecessary [-Wprofile-instr-out-of-date]
warnings during profile-use runs even if the source has never been
modified since profile collection.
Alexey Bataev [Wed, 20 May 2015 11:57:02 +0000 (11:57 +0000)]
[MSVC] Handle out-of-line definition of static data member correctly (fix for http://llvm.org/PR21164), by Alexey Frolov
There are 3 cases of defining static const member:
initialized inside the class, not defined outside the class.
initialized inside the class, defined outside the class.
not initialized inside the class, defined outside the class.
Revision r213304 was supposed to fix the linkage problem of case (1), but mistakenly it made case (2) behave the same.
As a result, out-of-line definition of static data member is not handled correctly.
Proposed patch distinguishes between cases (1) and (2) and allows to properly emit static const members under –fms-compatibility option.
This fixes http://llvm.org/PR21164.
Differential Revision: http://reviews.llvm.org/D9850
Yaron Keren [Wed, 20 May 2015 07:15:28 +0000 (07:15 +0000)]
Fix CGRecordLayouts description to say it maps clang types not llvm types
and de-duplicate data fields names from comments according to the coding
standard.
Alexey Bataev [Wed, 20 May 2015 04:24:19 +0000 (04:24 +0000)]
[OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492)
-fopenmp turns on OpenMP support and links libiomp5 as OpenMP library. Also there is -fopenmp={libiomp5|libgomp} option that allows to override effect of -fopenmp and link libgomp library (if -fopenmp=libgomp is specified).
Differential Revision: http://reviews.llvm.org/D9736
Alexey Bataev [Wed, 20 May 2015 03:46:04 +0000 (03:46 +0000)]
Fix for aggregate copying of variable length arrays.
Patch fixes codegen for aggregate copying of VLAs. Currently method CodeGenFunction::EmitAggregateCopy() does not support copying of VLAs. Patch checks if the size of the type is 0, then checks if the type is actually a variable-length array. Then it calculates total length for this array and calculates total size of the array in bytes:
<total number of elements in array> * aligned_sizeof(ElementType) (if copy assignment is requested).
If simple copying is requested, size is calculated like:
<total number of elements in array> * aligned_sizeof(ElementType) - aligned_sizeof(ElementType) + sizeof(ElementType).
memcpy() is used with this calculated size of the VLA.
Differential Revision: http://reviews.llvm.org/D9851
David Blaikie [Tue, 19 May 2015 21:31:34 +0000 (21:31 +0000)]
[opaque pointer type] Pass the explicit call type when creating calls from LazyRuntimeFunctions
The implicit conversion was causing issues for a helper being added that
would take an llvm::Function rather than an llvm::Value to make the
CallInst. Since we'll eventually need to specify the type of the call
explicitly anyway, fix these up to avoid the future ambiguity.
Richard Smith [Tue, 19 May 2015 19:58:11 +0000 (19:58 +0000)]
Revert r237609 for now.
glibc's headers use __need_* macros to selectively export parts of themselves
to each other. This requires us to enter those files repeatedly when building
a glibc module.
This can be unreverted once we have a better mechanism to deal with that
non-modular aspect of glibc (possibly some way to mark a header as "textual if
this macro is defined").
Alexey Bataev [Tue, 19 May 2015 12:31:28 +0000 (12:31 +0000)]
[OPENMP] Fixed codegen for copying/initialization of array variables/parameters.
This modification generates proper copyin/initialization sequences for array variables/parameters. Before they were considered as pointers, not arrays.
Alexey Bataev [Tue, 19 May 2015 08:44:56 +0000 (08:44 +0000)]
[OPENMP] Prohibit VLAs in 'private/firstprivate' clauses of 'task' directive.
Currently runtime does not allow to support variably modified types for 'private' and 'firstprivate' clauses in 'task' directives.
David Majnemer [Tue, 19 May 2015 00:57:16 +0000 (00:57 +0000)]
[AST] Put VarDeclBitfields on a diet
VarDeclBitfields contained bits which are never present in parameters.
Split these out so that ParmVarDeclBitfields wouldn't grow past 32-bits
if another field was added.
Reid Kleckner [Mon, 18 May 2015 22:46:30 +0000 (22:46 +0000)]
Revert changes to DefaultABIInfo accidentally introduced in r208733
Also add trivial handling of transparent unions.
PPC32, MSP430, and XCore apparently all rely on DefaultABIInfo. This
should worry you, because DefaultABIInfo is not implementing the rules
of any particular ABI.
Richard Trieu [Mon, 18 May 2015 20:25:44 +0000 (20:25 +0000)]
Create new diagnostic group -Wmove
-Wmove includes the three existing warnings for std::move calls, self move,
reduntant move, and pessimizing move. -Wmove is included in -Wmost, so that
it can be discoverable to people using that or -Wall.
Richard Smith [Mon, 18 May 2015 20:02:41 +0000 (20:02 +0000)]
[modules] When a file is listed as a non-textual header in a module map, don't
enter it more than once, even if it doesn't have #include guards -- we already
know that it is intended to have the same effect every time it's included, and
it's already had that effect. This particularly helps with local submodule
visibility builds, where the include guard macro may not be visible in the
includer, but will become visible the moment we enter the included file.
Alexey Bataev [Mon, 18 May 2015 07:54:53 +0000 (07:54 +0000)]
[OPENMP] Fix for '#pragma omp task' codegen.
Internal task structure must be generated like
typedef struct kmp_task {
void * shareds;
kmp_routine_entry_t routine;
kmp_int32 part_id;
kmp_routine_entry_t destructors;
} kmp_task_t;
struct kmp_task_t_with_privates {
kmp_task_t task_data;
.kmp_private. privates;
};
to avoid possible additional alignment bytes in first fields (shareds, routine, part_id and destructors). Runtime library is not aware of such kind additional alignment bytes.
Richard Smith [Mon, 18 May 2015 03:52:30 +0000 (03:52 +0000)]
[modules] If we see a #include that maps to a module, but use of precompiled modules is disabled, track submodule visibility anyway if -fmodules-local-submodule-visibility is enabled. This, in effect, gives modules semantics but without precompilation.
David Majnemer [Mon, 18 May 2015 00:05:29 +0000 (00:05 +0000)]
[MS ABI] Give __attribute__((overloadable)) functions pretty names
It turns out that there is a mangling for 'extern "C"', it's only used
by MSVC in /clr mode. Co-opt this mangling so that extern "C" functions
marked overloadable get demangled nicely.
Daniel Jasper [Sun, 17 May 2015 07:27:09 +0000 (07:27 +0000)]
clang-format: Improve line wrapping around << operators.
Generally, clang-format tries to keep label-value pairs on a single
line for stream operators. However, we should not do that if there is
just a single such pair, as that doesn't help much.
Nico Weber [Sun, 17 May 2015 01:07:16 +0000 (01:07 +0000)]
Don't leak TemplateIds when a plugin parses late-parsed templates at TU end.
In -fdelayed-template-parsing mode, templates that aren't used are not parsed
at all. For some diagnostic plugins, this is a problem since they want to
analyse the contents of the template function body. What has been suggested
on cfe-dev [1] is to explicitly parse interesting templates in
HandleTranslationUnit(); IWYU does this for example [2].
This is workable, but since the delayed parsing doesn't run below a call to
ParseTopLevelDecl(), no DestroyTemplateIdAnnotationsRAIIObj object is on the
stack to clean up TemplateIds that are created during parsing. To fix this,
let ~Parser() clean them up in delayed template parsing mode instead of
leaking (or asserting in +Assert builds).
(r219810, relanded in r220400, fixed the same problem in incremental processing
mode; the review thread of r219810 has a good discussion of the problem.)
To test this, give the PrintFunctionNames plugin a flag to force parsing
of a template and add a test that uses it in -fdelayed-template-parsing mode.
Without the Parser.cpp change, that test asserts.
Richard Smith [Sat, 16 May 2015 02:28:53 +0000 (02:28 +0000)]
[modules] Retain the name as written for umbrella headers and directories, rather than converting to an absolute path. No observable change expected, but this allows us to correctly compute the module for an umbrella header, which later changes will require.
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