Commit Graph

32424 Commits

Author SHA1 Message Date
Richard Smith 91fc7d89d0 Fix two-phase name lookup for non-dependent overloaded operators.
If we resolve an overloaded operator call to a specific function during
template definition, don't perform ADL during template instantiation.
Doing so finds overloads that we're not supposed to find.

llvm-svn: 315005
2017-10-05 19:35:51 +00:00
Alexey Bataev 2fd0cb2ae7 [OPENMP] Fix mapping|privatization of implicitly captured variables.
If the `defaultmap(tofrom:scalar)` clause is specified, the scalars must
be mapped with 'tofrom' modifiers, otherwise they must be captured as
firstprivates.

llvm-svn: 314995
2017-10-05 17:51:39 +00:00
Artem Dergachev 59428d182f [analyzer] Fix leak false positives on stuff put in C++/ObjC initializer lists.
The analyzer now realizes that C++ std::initializer_list objects and
Objective-C boxed structure/array/dictionary expressions can potentially
maintain a reference to the objects that were put into them. This avoids
false memory leak posivites and a few other issues.

This is a conservative behavior; for now, we do not model what actually happens
to the objects after being passed into such initializer lists.

rdar://problem/32918288
Differential Revision: https://reviews.llvm.org/D35216

llvm-svn: 314975
2017-10-05 08:43:32 +00:00
Sean Fertile 03e77c64f1 Enabling new pass manager in LTO (and thinLTO) link step.
Passes 'new-pass-manager' option to the linker plugin when the new pass
manager is enabled.

Patch by Graham Yiu.

Differential Revision: https://reviews.llvm.org/D38517

llvm-svn: 314964
2017-10-05 01:50:48 +00:00
Richard Smith 92ea28a2a3 Add testcase for r314956:
PR33924: Merge block-scope anonymous declarations if there are multiple definitions of the enclosing function.
llvm-svn: 314957
2017-10-05 00:48:18 +00:00
Erich Keane 95be5d2e49 Fix 'section' warning behavior with tentatively-defined values
As reported on cfe-commits, r314262 resulted in tentatively-defined
variables not being excluded for the warning.

Patch By: Elizabeth Andrews

llvm-svn: 314939
2017-10-04 22:16:24 +00:00
Yaxun Liu 10712d9203 [OpenCL] Clean up and add missing fields for block struct
Currently block is translated to a structure equivalent to

struct Block {
  void *isa;
  int flags;
  int reserved;
  void *invoke;
  void *descriptor;
};
Except invoke, which is the pointer to the block invoke function,
all other fields are useless for OpenCL, which clutter the IR and
also waste memory since the block struct is passed to the block
invoke function as argument.

On the other hand, the size and alignment of the block struct is
not stored in the struct, which causes difficulty to implement
__enqueue_kernel as library function, since the library function
needs to know the size and alignment of the argument which needs
to be passed to the kernel.

This patch removes the useless fields from the block struct and adds
size and align fields. The equivalent block struct will become

struct Block {
  int size;
  int align;
  generic void *invoke;
 /* custom fields */
};
It also changes the pointer to the invoke function to be
a generic pointer since the address space of a function
may not be private on certain targets.

Differential Revision: https://reviews.llvm.org/D37822

llvm-svn: 314932
2017-10-04 20:32:17 +00:00
Artem Dergachev 9445b89c49 [analyzer] Fix autodetection of binding types.
In ProgramState::getSVal(Location, Type) API which dereferences a pointer value,
when the optional Type parameter is not supplied and the Location is not typed,
type should have been guessed on a best-effort basis by inspecting the Location
more deeply. However, this never worked; the auto-detected type was instead
a pointer type to the correct type.

Fixed the issue and added various test cases to demonstrate which parts of the
analyzer were affected (uninitialized pointer argument checker, C++ trivial copy
modeling, Google test API modeling checker).

Additionally, autodetected void types are automatically replaced with char,
in order to simplify checker APIs. Which means that if the location is a void
pointer, getSVal() would read the first byte through this pointer
and return its symbolic value.

Fixes pr34305.

Differential Revision: https://reviews.llvm.org/D38358

llvm-svn: 314910
2017-10-04 15:59:40 +00:00
Carlo Bertolli ba1487ba69 [OpenMP] Initial implementation of teams distribute code generation
https://reviews.llvm.org/D38371

This patch implements codegen for the combined 'teams distribute" OpenMP pragma and adds regression tests for all its clauses.

llvm-svn: 314905
2017-10-04 14:12:09 +00:00
Jonas Hahnfeld cbbcd7fc1b [test] Pass in fixed triple for openmp-offload.c
This should fix the test on other architectures.

Related to: https://reviews.llvm.org/D38372

llvm-svn: 314904
2017-10-04 13:54:09 +00:00
Jonas Hahnfeld bbf56fb621 [OpenMP] Fix passing of -m arguments correctly
The recent fix in D38258 was wrong: getAuxTriple() only returns
non-null values for the CUDA toolchain. That is why the now added
test for PPC and X86 failed.

Differential Revision: https://reviews.llvm.org/D38372

llvm-svn: 314902
2017-10-04 13:32:59 +00:00
Alexander Kornienko 9ad43a1cf1 Fix assertion failure in thread safety analysis (PR34800).
Summary:
Fix an assertion failure (http://llvm.org/PR34800) and clean up unused code relevant to the fixed logic.

A bit of context: when `SExprBuilder::translateMemberExpr` is called on a member expression that involves a conversion operator, for example, `til::Project` constructor can't just call `getName()` on it, since the name is not a simple identifier. In order to handle this case I've introduced an optional string to print the member name to. I discovered that the other two `til::Project` constructors are not used, so it was better to delete them instead of ensuring they work correctly with the new logic.

Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D38458

llvm-svn: 314895
2017-10-04 10:24:36 +00:00
Richard Smith 289728d5a6 We allow implicit function declarations as an extension in all C dialects. Remove OpenCL special case.
llvm-svn: 314872
2017-10-04 01:58:22 +00:00
Richard Smith 9bfa970a40 PR34822: Fix a collection of related bugs with our handling of C89 implicit function declarations.
We were injecting the function into the wrong semantic context, resulting in it
failing to be registered as a global for redeclaration lookup. As a
consequence, we accepted invalid code since r310616.

Fixing that resulted in the "out-of-scope declaration" diagnostic firing a lot
more often. It turned out that warning codepath was non-conforming, because it
did not cause us to inject the implicitly-declared function into the enclosing
block scope. We now only warn if the type of the out-of-scope declaration
doesn't match the type of an implicitly-declared function; in all other cases,
we produce the normal warning for an implicitly-declared function.

llvm-svn: 314871
2017-10-04 01:49:22 +00:00
Erik Pilkington 4292549fb4 [ExprConstant] Allow constexpr ctor to modify non static data members
Fixes PR19741.

Differential revision: https://reviews.llvm.org/D38483

llvm-svn: 314865
2017-10-04 00:18:55 +00:00
George Karpenkov 367fbfcc20 [Analyzer] Re-apply r314820 with a fix for StringRef lifetime.
Fixes the test failure: temporary is now bound to std::string, tests
fully pass on Linux.

This reverts commit b36ee0924038e1d95ea74230c62d46e05f80587e.

llvm-svn: 314859
2017-10-03 23:15:35 +00:00
Richard Smith 283e2076f6 Suppress -Wmissing-braces warning when aggregate-initializing a struct with a single field that is itself an aggregate.
In C++, such initialization of std::array<T, N> types is guaranteed to work by
the standard, is completely idiomatic, and the "suggested" alternative from
Clang was technically invalid.

llvm-svn: 314838
2017-10-03 20:36:00 +00:00
Alexey Bataev 502ec49793 [OPENMP] Allow use of declare target directive inside struct
declaration.

Patch allows using of the `#pragma omp declare target`| `#pragma omp end
declare target` directives inside the structures if we need to mark as
declare target only some static members.

llvm-svn: 314833
2017-10-03 20:00:00 +00:00
Tim Shen 77886fc0f0 Revert r314820 "[Analyzer] More granular special casing in RetainCountChecker"
The test retain-release.m fails with this patch.

Differential Revision: https://reviews.llvm.org/D38487

llvm-svn: 314831
2017-10-03 19:39:02 +00:00
George Karpenkov fec6b1afe6 [Analyzer] More granular special casing in RetainCountChecker
Only assume that IOBSDNameMatching and friends increment a reference counter
if their return type is a CFMutableDictionaryRef.

Differential Revision: https://reviews.llvm.org/D38487

llvm-svn: 314820
2017-10-03 18:12:15 +00:00
Yaxun Liu 085a23f187 [OpenCL] Fix checking of vector type casting
Currently clang allows the following code

int a;
int b = (const int) a;
However it does not the following code

int4 a;
int4 b = (const int4) a;
This is because Clang compares the qualified types instead of unqualified types for vector type casting, which causes the inconsistency.

This patch fixes that.

Differential Revision: https://reviews.llvm.org/D38463

llvm-svn: 314802
2017-10-03 14:34:29 +00:00
Richard Smith c445d5ddc3 R34811: Allow visibilities other than 'default' for VisibleNoLinkage entities.
llvm-svn: 314754
2017-10-03 01:58:15 +00:00
Vedant Kumar a8ff3b3528 [ubsan] Skip alignment checks which are folded away
Don't emit alignment checks which the IR constant folder throws away.

I've tested this out on X86FastISel.cpp. While this doesn't decrease
end-to-end compile-time significantly, it results in 122 fewer type
checks (1% reduction) overall, without adding any real complexity.

Differential Revision: https://reviews.llvm.org/D37544

llvm-svn: 314752
2017-10-03 01:27:26 +00:00
Vedant Kumar 8a7153312b [ubsan] Save a ptrtoint when emitting alignment checks
The alignment check emits a ptrtoint instruction which can be reused in
the call to the diagnostic handler.

llvm-svn: 314749
2017-10-03 01:27:24 +00:00
Reid Kleckner f6d65dff55 [clang-cl] Claim ignored /O[12xd] arguments
Fixes PR34809

llvm-svn: 314743
2017-10-03 00:14:03 +00:00
Richard Smith 81df9eb0f2 PR33839: Fix -Wunused handling for structured binding declarations.
We warn about a structured binding declaration being unused only if none of its
bindings are used.

llvm-svn: 314733
2017-10-02 22:43:36 +00:00
Walter Lee fc7f8f25f3 Add support for Myriad ma2x8x series of CPUs
Summary:
Also:
- Add support for some older Myriad CPUs that were missing.
- Fix some incorrect compiler defines for exisitng CPUs.

Reviewers: jyknight

Subscribers: fedor.sergeev

Differential Revision: https://reviews.llvm.org/D37551

llvm-svn: 314706
2017-10-02 18:50:57 +00:00
Adrian Prantl a351f150b2 Add a testcase to check that debug info is upgraded when compiling LLVM IR
through clang.

llvm-svn: 314700
2017-10-02 18:31:52 +00:00
Reid Kleckner a3fe27f6b5 Revert "[Sema] Warn on attribute nothrow conflicting with language specifiers"
This reverts r314461.

It is warning on user code that uses END_COM_MAP(), which expands to
declare QueryInterface with conflicting exception specifers. I've spent
a while trying to understand why, but haven't been able to extract a
reduced test case. Let's revert and I'll keep trying.

llvm-svn: 314689
2017-10-02 17:16:14 +00:00
Erich Keane fcdf09e04b Update IUnknown lit test to pass on Win32
llvm-svn: 314687
2017-10-02 16:49:32 +00:00
Alexey Bataev 931e19bf51 [OPENMP] Capture argument of `device` clause for target-based
directives.

The argument of the `device` clause in target-based executable
directives must be captured to support codegen for the `target`
directives with the `depend` clauses.

llvm-svn: 314686
2017-10-02 16:32:39 +00:00
Alexey Bataev 5dadb79fcd [OPENMP] Fix test, NFC.
llvm-svn: 314673
2017-10-02 14:35:31 +00:00
Alexey Bataev 2a007e05a0 [OPENMP] Simplify codegen for non-offloading code.
Simplified and generalized codegen for non-offloading part that works if
offloading is failed or condition of the `if` clause is `false`.

llvm-svn: 314670
2017-10-02 14:20:58 +00:00
Andrew Gozillon 25b16572e9 Dependent Address Space Support Test Fix
Modifying a non-type template integer arguement that is causing errors 
in some builds as it's too large for 32-bit longs. This hopefully (and 
seems to when testing) should fix all of the build bot errors relating 
to this test. I also modified the name of the function call to be more 
apt.

Differential Revision: https://reviews.llvm.org/D33666

llvm-svn: 314668
2017-10-02 13:32:59 +00:00
Andrew Gozillon 0cd141ba9d Dependent Address Space Support Test File
Adding regression test for Dependent Address Spaces in relation to
https://reviews.llvm.org/D33666 I forgot to svn add the test file 
before commiting the prior changes. I appologies. 

llvm-svn: 314650
2017-10-02 06:31:25 +00:00
NAKAMURA Takumi 86715b26c1 clang/test/SemaCXX/ms-iunknown-template-function.cpp: Appease for targeting *-win32.
This expects the warning;

  File clang/test/SemaCXX/ms-iunknown-template-function.cpp Line 19: __declspec attribute 'novtable' is not supported

But for targeting *-win32, the warning is not seen.

  error: 'warning' diagnostics expected but not seen:
    File clang\test\SemaCXX\ms-iunknown-template-function.cpp Line 19 (directive at clang\test\SemaCXX\ms-iunknown-template-function.cpp:18): __declspec attribute 'novtable'

llvm-svn: 314586
2017-09-30 09:16:41 +00:00
Richard Trieu e13eabe7d3 [ODRHash] Add base classes to hashing CXXRecordDecl.
llvm-svn: 314581
2017-09-30 02:19:17 +00:00
George Karpenkov 305ee8e5f8 [Analyzer] Add dummy implementation to call_once to avoid linkage warnings in tests.
llvm-svn: 314580
2017-09-30 01:15:35 +00:00
George Karpenkov 657a5896b1 [Analyzer] Synthesize function body for std::call_once
Differential Revision: https://reviews.llvm.org/D37840

llvm-svn: 314571
2017-09-30 00:03:22 +00:00
Richard Smith ac63d63543 Add a "vexing parse" warning for ambiguity between a variable declaration and a
function-style cast.

This fires for cases such as

  T(x);

... where 'x' was previously declared and T is a type. This construct declares
a variable named 'x' rather than the (probably expected) interpretation of a
function-style cast of 'x' to T.

llvm-svn: 314570
2017-09-29 23:57:25 +00:00
Paul Robinson a82808115e [PS4] Tidy up some debug-tuning v. triple decision-making.
llvm-svn: 314558
2017-09-29 21:25:07 +00:00
Erich Keane 3e08f66bb0 [Sema] Correct IUnknown to support Unknwnbase.h Header.
Apparently, the MSVC SDK has a strange implementation that
causes a number of implicit functions as well as a template member
function of the IUnknown type. This patch allows these as InterfaceLike
types as well.

Additionally, it corrects the behavior where extern-C++ wrapped around an
Interface-Like type would permit an interface-like type to exist in a namespace.

Differential Revision: https://reviews.llvm.org/D38303

llvm-svn: 314557
2017-09-29 21:06:00 +00:00
Francis Ricci e267103c2f [test] Disable leak checking on a clang crash test on Darwin
Suspected failure due to LSan's atexit and exit interception behavior.

Reviewers: kcc, kubamracek, bogner, hfinkel, alekseyshl, Hahnfeld, gtbercea

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37810

llvm-svn: 314526
2017-09-29 15:46:27 +00:00
Filipe Cabecinhas 88b3e4f150 Fix Modules/{builtin-import.mm,umbrella-header-include-builtin.mm} to be able to handle non-Darwin targets
Summary: Also makes them pass on Darwin, if the default target triple is a Linux triple.

Reviewers: bruno, rsmith

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D38364

llvm-svn: 314524
2017-09-29 15:45:34 +00:00
Daniel Marjamaki 817a3bfcdd [Sema] Suppress warnings for C's zero initializer
Patch by S. Gilles!

Differential Revision: https://reviews.llvm.org/D28148

llvm-svn: 314499
2017-09-29 09:44:41 +00:00
Coby Tayree 6150419d71 [X86][MS-InlineAsm] Extended support for variables / identifiers on memory / immediate expressions
Allow the proper recognition of Enum values and global variables inside ms inline-asm memory / immediate expressions, as they require some additional overhead and treated incorrect if doesn't early recognized.
supersedes D33278, D35774

Differential Revision: https://reviews.llvm.org/D37413

llvm-svn: 314494
2017-09-29 07:02:49 +00:00
Volodymyr Sapsai 43e6f7bee5 [Sema] Put nullability fix-it after the end of the pointer.
Fixes nullability fix-it for `id<SomeProtocol>`. With this change
nullability specifier is inserted after ">" instead of between
"id" and "<".

rdar://problem/34260995

Reviewers: jordan_rose, doug.gregor, ahatanak, arphaman

Reviewed By: jordan_rose

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D38327

llvm-svn: 314473
2017-09-28 23:18:49 +00:00
Alexander Shaposhnikov 195b25cf3c [clang] Add getUnsignedPointerDiffType method
C11 standard refers to the unsigned counterpart of the type ptrdiff_t 
in the paragraph 7.21.6.1p7 where it defines the format specifier %tu.
In Clang (in PrintfFormatString.cpp, lines 508-510) there is a FIXME for this case,
in particular, Clang didn't diagnose %tu issues at all, i.e.
it didn't emit any warnings on the code printf("%tu", 3.14).
In this diff we add a method getUnsignedPointerDiffType for getting the corresponding type
similarly to how it's already done in the other analogous cases (size_t, ssize_t, ptrdiff_t etc)
and fix -Wformat diagnostics for %tu plus the emitted fix-it as well.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D38270

llvm-svn: 314470
2017-09-28 23:11:31 +00:00
Aaron Ballman e8c0e558a4 Properly parse a postfix expression following a Boolean literal. Fixes PR34273.
Patch by Nicolas Lesser.

llvm-svn: 314463
2017-09-28 21:29:18 +00:00
Erich Keane 97dfc4ab28 [Sema] Correct nothrow inherited by noexcept
As reported in https://bugs.llvm.org/show_bug.cgi?id=33235,
a noexcept function was unable to inherit from a nothrow defaulted
constructor. Attribute "nothrow" is supposed to be semantically
identical to noexcept, and in fact, a number of other places in the
code treat them identically.

This patch simply checks the RecordDecl for the correct attribute in
the case where no other exception specifier was set.

Differential Revision: https://reviews.llvm.org/D38209

llvm-svn: 314462
2017-09-28 20:47:10 +00:00