Commit Graph

75640 Commits

Author SHA1 Message Date
James Y Knight 892b09ba11 ExprConstant: Make __builtin_object_size use EM_IgnoreSideEffects.
And, since EM_OffsetFold is now unused, remove it.

While builtin_object_size intends to ignore the presence of
side-effects in its argument, the EM_OffsetFold mode was NOT
configured to ignore side-effects. Rather it was effectively identical
to EM_ConstantFold -- its explanatory comment
notwithstanding.

However, currently, keepEvaluatingAfterSideEffect() is not always
honored -- sometimes evaluation continues despite it returning
false. Therefore, since the b_o_s code was only checking the return
value from evaluation, and not additionally checking the
HasSideEffects flag, side-effects _were_ in many cases actually being
ignored.

This change is a prerequisite cleanup towards fixing that issue.

Differential Revision: https://reviews.llvm.org/D52924

llvm-svn: 344110
2018-10-10 02:53:43 +00:00
Erik Pilkington abbc51e5c3 [Basic] Split out -Wimplicit-int-conversion and -Wimplicit-float-conversion from -Wconversion
These two diagnostics are noisy, so its reasonable for users to opt-out of them
when -Wconversion is enabled.

rdar://45058981

Differential revision: https://reviews.llvm.org/D53048

llvm-svn: 344101
2018-10-10 00:40:50 +00:00
Ed Maste 8bddfdd59c clang: Allow ifunc resolvers to accept arguments
When ifunc support was added to Clang (r265917) it did not allow
resolvers to take function arguments.  This was based on GCC's
documentation, which states resolvers return a pointer and take no
arguments.

However, GCC actually allows resolvers to take arguments, and glibc (on
non-x86 platforms) and FreeBSD (on x86 and arm64) pass some CPU
identification information as arguments to ifunc resolvers.  I believe
GCC's documentation is simply incorrect / out-of-date.

FreeBSD already removed the prohibition in their in-tree Clang copy.

Differential Revision:	https://reviews.llvm.org/D52703

llvm-svn: 344100
2018-10-10 00:34:17 +00:00
Fangrui Song d002823830 [Driver][cc1][cc1as] Call OptTable::PrintHelp with explicit " [options] file..."
Summary: This is to accommodate a change in llvm/lib/Option/OptTable.cpp D51009

Reviewers: rupprecht, alexshap, jhenderson

Reviewed By: rupprecht

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D51109

llvm-svn: 344098
2018-10-10 00:15:33 +00:00
Richard Smith e54d9525ad PR39231: fix null dereference when diagnosing deduction failure due to
conflicting values for a non-type pack.

llvm-svn: 344070
2018-10-09 18:49:22 +00:00
Yaxun Liu a461174cfd [CUDA][HIP] Fix ShouldDeleteSpecialMember for inherited constructors
ShouldDeleteSpecialMember is called upon inherited constructors.
It calls inferCUDATargetForImplicitSpecialMember.

Normally the special member enum passed to ShouldDeleteSpecialMember
matches the constructor. However this is not true when inherited
constructor is passed, where DefaultConstructor is passed to treat
the inherited constructor as DefaultConstructor. However
inferCUDATargetForImplicitSpecialMember expects the special
member enum argument to match the constructor, which results
in assertion when this expection is not satisfied.

This patch checks whether the constructor is inherited. If true it will
get the real special member enum for the constructor and pass it
to inferCUDATargetForImplicitSpecialMember.

Differential Revision: https://reviews.llvm.org/D51809

llvm-svn: 344057
2018-10-09 15:53:14 +00:00
Alexey Bataev 9ea3c38597 [OPENMP][NVPTX] Support memory coalescing for globalized variables.
Added support for memory coalescing for better performance for
globalized variables. From now on all the globalized variables are
represented as arrays of 32 elements and each thread accesses these
elements using `tid & 31` as index.

llvm-svn: 344049
2018-10-09 14:49:00 +00:00
Kristof Umann 1c9870cf13 [analyzer][www] Add more useful links
Differential Revision: https://reviews.llvm.org/D52993

llvm-svn: 344031
2018-10-09 10:05:08 +00:00
Stephen Kelly ccc0c6d3e6 [ASTMatcher] Add missing imaginaryLiteral
llvm-svn: 344026
2018-10-09 08:44:28 +00:00
Stephen Kelly 7b79fb45ca Remove non-existant typeloc matchers from documentation
llvm-svn: 344023
2018-10-09 08:24:18 +00:00
Stephen Kelly 9b8fa52ff6 Regenerate AST Matcher docs
llvm-svn: 344022
2018-10-09 08:24:11 +00:00
Stephen Kelly 2b2d1f6f5f Fix indentation
llvm-svn: 344021
2018-10-09 08:24:06 +00:00
Gabor Horvath d1fd93ceea [analyzer] Support Reinitializes attribute in MisusedMovedObject check
Differential Revision: https://reviews.llvm.org/D52983

llvm-svn: 344017
2018-10-09 07:28:57 +00:00
Fangrui Song 63a8b6c304 [Index] Use locations to uniquify function-scope BindingDecl USR
Summary:
This makes BindingDecl's of the same name have different USRs, so that references can be correctly attributed.

    int a[1] = {};
    { auto [x] = a; x; }
    { auto [x] = a; x; }

Reviewers: akyrtzi, arphaman, rsmith, hokein

Reviewed By: hokein

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52445

llvm-svn: 344010
2018-10-09 01:02:56 +00:00
Thomas Lively 03128d62b8 [WebAssembly][NFC] Rename test functions for builtins
Reviewers: aheejin, dschuff

Subscribers: sbc100, jgravelle-google, sunfish, jfb, kristina, cfe-commits

Differential Revision: https://reviews.llvm.org/D53007

llvm-svn: 344009
2018-10-09 00:42:13 +00:00
Ali Tamur bc1cd929bf Introduce code_model macros
Summary:
gcc defines macros such as __code_model_small_ based on the user passed command line flag -mcmodel. clang accepts a flag with the same name and similar effects, but does not generate any macro that the user can use. This cl narrows the gap between gcc and clang behaviour.

However, achieving full compatibility with gcc is not trivial: The set of valid values for mcmodel in gcc and clang are not equal. Also, gcc defines different macros for different architectures. In this cl, we only tackle an easy part of the problem and define the macro only for x64 architecture. When the user does not specify a mcmodel, the macro for small code model is produced, as is the case with gcc.

Reviewers: compnerd, MaskRay

Reviewed By: MaskRay

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D52920

llvm-svn: 344000
2018-10-08 22:25:20 +00:00
Brian Gesiak 0b56830011 [coro]Pass rvalue reference for named local variable to return_value
Summary:
Addressing https://bugs.llvm.org/show_bug.cgi?id=37265.

Implements [class.copy]/33 of coroutines TS.

When the criteria for elision of a copy/move operation are met, but not
for an exception-declaration, and the object to be copied is designated by an
lvalue, or when the expression in a return or co_return statement is a
(possibly parenthesized) id-expression that names an object with automatic
storage duration declared in the body or parameter-declaration-clause of the
innermost enclosing function or lambda-expression, overload resolution to select
the constructor for the copy or the return_value overload to call is first
performed as if the object were designated by an rvalue.

Patch by Tanoy Sinha!

Reviewers: modocache, GorNishanov

Reviewed By: modocache, GorNishanov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D51741

llvm-svn: 343949
2018-10-08 03:08:39 +00:00
Simon Pilgrim 96742556e4 Wdocumentation fix
llvm-svn: 343915
2018-10-06 11:12:59 +00:00
Aaron Puchert b0a2a0cf7d Thread safety analysis: Handle conditional expression in getTrylockCallExpr
Summary:
We unwrap conditional expressions containing try-lock functions.

Additionally we don't acquire on conditional expression branches, since
that is usually not helpful. When joining the branches we would almost
certainly get a warning then.

Hopefully fixes an issue that was raised in D52398.

Reviewers: aaron.ballman, delesley, hokein

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52888

llvm-svn: 343902
2018-10-06 01:09:28 +00:00
Mandeep Singh Grang df7929676d [COFF, ARM64] Add _InterlockedAdd intrinsic
Reviewers: rnk, mstorsjo, compnerd, TomTan, haripul, javed.absar, efriedma

Reviewed By: efriedma

Subscribers: efriedma, kristof.beyls, chrib, jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D52811

llvm-svn: 343894
2018-10-05 21:57:41 +00:00
James Y Knight 49bf370a8b Emit CK_NoOp casts in C mode, not just C++.
Previously, it had been using CK_BitCast even for casts that only
change const/restrict/volatile. Now it will use CK_Noop where
appropriate.

This is an alternate solution to r336746.

Differential Revision: https://reviews.llvm.org/D52918

llvm-svn: 343892
2018-10-05 21:53:51 +00:00
Petr Hosek 62f6462bf9 [llvm-nm] Write "no symbol" output to stderr
This matches the output of binutils' nm and ensures that any scripts
or tools that use nm and expect empty output in case there no symbols
don't break.

Differential Revision: https://reviews.llvm.org/D52943

llvm-svn: 343887
2018-10-05 21:10:03 +00:00
Vedant Kumar 5931b4e5b5 [DebugInfo] Add support for DWARF5 call site-related attributes
DWARF v5 introduces DW_AT_call_all_calls, a subprogram attribute which
indicates that all calls (both regular and tail) within the subprogram
have call site entries. The information within these call site entries
can be used by a debugger to populate backtraces with synthetic tail
call frames.

Tail calling frames go missing in backtraces because the frame of the
caller is reused by the callee. Call site entries allow a debugger to
reconstruct a sequence of (tail) calls which led from one function to
another. This improves backtrace quality. There are limitations: tail
recursion isn't handled, variables within synthetic frames may not
survive to be inspected, etc. This approach is not novel, see:

  https://gcc.gnu.org/wiki/summit2010?action=AttachFile&do=get&target=jelinek.pdf

This patch adds an IR-level flag (DIFlagAllCallsDescribed) which lowers
to DW_AT_call_all_calls. It adds the minimal amount of DWARF generation
support needed to emit standards-compliant call site entries. For easier
deployment, when the debugger tuning is LLDB, the DWARF requirement is
adjusted to v4.

Testing: Apart from check-{llvm, clang}, I built a stage2 RelWithDebInfo
clang binary. Its dSYM passed verification and grew by 1.4% compared to
the baseline. 151,879 call site entries were added.

rdar://42001377

Differential Revision: https://reviews.llvm.org/D49887

llvm-svn: 343883
2018-10-05 20:37:17 +00:00
Mandeep Singh Grang 15e0f7fa28 [COFF, ARM64] Add _InterlockedCompareExchangePointer_nf intrinsic
Reviewers: rnk, mstorsjo, compnerd, TomTan, haripul, efriedma

Reviewed By: efriedma

Subscribers: efriedma, kristof.beyls, chrib, jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D52807

llvm-svn: 343881
2018-10-05 19:49:36 +00:00
Artem Belevich 93552b39c9 [CUDA] Use all 64 bits of GUID in __nv_module_id
getGUID() returns an uint64_t and "%x" only prints 32 bits of it.
Use PRIx64 format string to print all 64 bits.

Differential Revision: https://reviews.llvm.org/D52938

llvm-svn: 343875
2018-10-05 18:39:58 +00:00
Nico Weber 208661b206 clang-format: Don't insert spaces in front of :: for Java 8 Method References.
The existing code kept the space if it was there for identifiers, and it didn't
handle `this`. After this patch, for Java `this` is handled in addition to
identifiers, and existing space is always stripped between identifier and `::`.

Also accept `::` in addition to `.` in front of `<` in `foo::<T>bar` generic
calls.

Differential Revision: https://reviews.llvm.org/D52842

llvm-svn: 343872
2018-10-05 18:22:21 +00:00
James Y Knight c7d3e609fb Emit diagnostic note when calling an invalid function declaration.
The comment said it was intentionally not emitting any diagnostic
because the declaration itself was already diagnosed. However,
everywhere else that wants to not emit a diagnostic without an extra
note emits note_invalid_subexpr_in_const_expr instead, which gets
suppressed later.

This was the only place which did not emit a diagnostic note.

Differential Revision: https://reviews.llvm.org/D52919

llvm-svn: 343867
2018-10-05 17:49:48 +00:00
Krasimir Georgiev 7e91b03348 [clang-format] Java import sorting in clang-format
Contributed by SamMaier!

llvm-svn: 343862
2018-10-05 17:19:26 +00:00
Alexey Bataev 6bc2732f71 [OPENMP][NVPTX] Fix emission of __kmpc_global_thread_num() for non-SPMD
mode.

__kmpc_global_thread_num() should be called before initialization of the
runtime.

llvm-svn: 343857
2018-10-05 15:27:47 +00:00
Alexey Bataev fd006c44ee [OPENMP] Fix emission of the __kmpc_global_thread_num.
Fixed emission of the __kmpc_global_thread_num() so that it is not
messed up with alloca instructions anymore. Plus, fixes emission of the
__kmpc_global_thread_num() functions in the target outlined regions so
that they are not called before runtime is initialized.

llvm-svn: 343856
2018-10-05 15:08:53 +00:00
Simon Pilgrim 3c19674fac Fix llvm-clang-x86_64-expensive-checks-win build by setting bigobj flag.
llvm-svn: 343846
2018-10-05 12:33:57 +00:00
David Green b88f72de3b [AArch64] Use filecheck captures for metadata node numbers in test. NFC
Just a quick fix for cases where extra metadata members are present.

llvm-svn: 343843
2018-10-05 10:21:25 +00:00
Thomas Lively d2a293c562 [WebAssembly] abs and sqrt builtins
Summary: Depends on D52910.

Reviewers: aheejin, dschuff, craig.topper

Subscribers: sbc100, jgravelle-google, sunfish, kristina, cfe-commits

Differential Revision: https://reviews.llvm.org/D52913

llvm-svn: 343838
2018-10-05 01:02:54 +00:00
Thomas Lively 291d75b0de [WebAssembly] any_true and all_true builtins
Summary: Depends on D52858.

Reviewers: aheejin, dschuff, craig.topper

Subscribers: sbc100, jgravelle-google, sunfish, kristina, cfe-commits

Differential Revision: https://reviews.llvm.org/D52910

llvm-svn: 343837
2018-10-05 00:59:37 +00:00
Thomas Lively 9034a47e79 [WebAssembly] saturating arithmetic builtins
Summary: Depends on D52856.

Reviewers: aheejin, dschuff

Subscribers: sbc100, jgravelle-google, sunfish, kristina, cfe-commits

Differential Revision: https://reviews.llvm.org/D52858

llvm-svn: 343836
2018-10-05 00:58:56 +00:00
Thomas Lively a347436f09 [WebAssembly] __builtin_wasm_replace_lane_* builtins
Summary: Depends on D52852.

Reviewers: aheejin, dschuff

Subscribers: sbc100, jgravelle-google, sunfish, kristina, cfe-commits

Differential Revision: https://reviews.llvm.org/D52856

llvm-svn: 343835
2018-10-05 00:58:07 +00:00
Thomas Lively d6792c0c28 [WebAssembly] __builtin_wasm_extract_lane_* builtins
Reviewers: aheejin, dschuff

Subscribers: sbc100, jgravelle-google, sunfish, kristina, cfe-commits

Differential Revision: https://reviews.llvm.org/D52852

llvm-svn: 343834
2018-10-05 00:54:44 +00:00
Aaron Puchert 35389e51f3 Thread safety analysis: Examine constructor arguments
Summary:
Instead of only examining call arguments, we also examine constructor
arguments applying the same rules.

That was an opportunity for refactoring the examination procedure to
work with iterators instead of integer indices. For the case of
CallExprs no functional change is intended.

Reviewers: aaron.ballman, delesley

Reviewed By: delesley

Subscribers: JonasToth, cfe-commits

Differential Revision: https://reviews.llvm.org/D52443

llvm-svn: 343831
2018-10-04 23:51:14 +00:00
Mandeep Singh Grang ecc82ef0c2 [COFF, ARM64] Add __getReg intrinsic
Reviewers: rnk, mstorsjo, compnerd, TomTan, haripul, javed.absar, efriedma

Reviewed By: efriedma

Subscribers: peter.smith, efriedma, kristof.beyls, chrib, cfe-commits

Differential Revision: https://reviews.llvm.org/D52838

llvm-svn: 343824
2018-10-04 22:32:42 +00:00
Reid Kleckner 933de17ac2 Update Clang Windows getting started docs
Summary:
- Update the example VS project generation to use VS2017.
- Add docs for generating ninja build files, since they are popular.
- Remove reference to "make update" which no longer exists. Mention the
  monorepo instead.
- Try to explain gnuwin32/coreutils requirements better.
- Use https:// links where possible

Reviewers: zturner, STL_MSFT

Subscribers: jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D52843

llvm-svn: 343809
2018-10-04 20:34:52 +00:00
Shoaib Meenai c8714d284a [AST] Revert mangling changes from r339428
As discussed in https://reviews.llvm.org/D50144, we want Obj-C classes
to have the same mangling as C++ structs, to support headers like the
following:

```
@class I;
struct I;

void f(I *);
```

since the header can be used from both C++ and Obj-C++ TUs, and we want
a consistent mangling across the two to prevent link errors. Itanium
mangles both the same way, and so should the MS ABI.

The main concern with having the same mangling for C++ structs and Obj-C
classes was that we want to treat them differently for the purposes of
exception handling, e.g. we don't want a C++ catch statement for a
struct to be able to catch an Obj-C class with the same name as the
struct. We can accomplish this by mangling Obj-C class names differently
in their RTTI, which I'll do in a follow-up patch.

Differential Revision: https://reviews.llvm.org/D52581

llvm-svn: 343808
2018-10-04 19:50:14 +00:00
Stephen Kelly 07dd5af6df [NestedNameSpecifier] Add missing stream-specific dump methods
Reviewers: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52870

llvm-svn: 343807
2018-10-04 19:22:00 +00:00
Louis Dionne d269579a97 [clang] Add the exclude_from_explicit_instantiation attribute
Summary:
This attribute allows excluding a member of a class template from being part
of an explicit template instantiation of that class template. This also makes
sure that code using such a member will not take for granted that an external
instantiation exists in another translation unit. The attribute was discussed
on cfe-dev at [1] and is primarily motivated by the removal of always_inline
in libc++ to control what's part of the ABI (see links in [1]).

[1]: http://lists.llvm.org/pipermail/cfe-dev/2018-August/059024.html

rdar://problem/43428125

Reviewers: rsmith

Subscribers: dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D51789

llvm-svn: 343790
2018-10-04 15:49:42 +00:00
Haojian Wu e94c869434 [Index] Respect "IndexFunctionLocals" option for type loc.
Summary:
Previously, clang index ignored local symbols defined in the function body even
IndexFunctionLocals is true.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, ioeric, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D52877

llvm-svn: 343767
2018-10-04 11:03:55 +00:00
Petr Pavlu ed083f2c1f [constexpr] Fix ICE when memcpy() is given a pointer to an incomplete array
Fix code for constant evaluation of __builtin_memcpy() and
__builtin_memmove() that would attempt to divide by zero when given two
pointers to an incomplete array.

Differential Revision: https://reviews.llvm.org/D51855

llvm-svn: 343761
2018-10-04 09:25:44 +00:00
Sjoerd Meijer d60540a046 [AArch64][ARM] Context sensitive meaning of crypto
For AArch64, crypto means:
- sm4 + sha3 + sha2 + aes for Armv8.4-A and up, and
- sha2 + aes for Armv8.3-A and earlier.

For AArch32:
Crypto means sha2 + aes, because the Armv8.2-A crypto instructions
were added to AArch64 only.

Differential Revision: https://reviews.llvm.org/D50179

llvm-svn: 343758
2018-10-04 07:38:53 +00:00
George Karpenkov 03242ea571 [analyzer] [quickfix] Temporarily disabling a failing test.
llvm-svn: 343747
2018-10-04 00:07:45 +00:00
Jordan Rupprecht 6f9d199ab1 [llvm-nm] Update clang tests based on changed llvm-nm output
llvm-svn: 343744
2018-10-03 23:40:04 +00:00
Nick Desaulniers 150ca5309e [SEMA] split ExtWarn dupl-decl-spec's into Extension and ExtWarn
Summary:
For types deduced from typedef's and typeof's, don't warn for duplicate
declaration specifiers in C90 unless -pedantic.

Create a third diagnostic type for duplicate declaration specifiers.
Previously, we had an ExtWarn and a Warning. This change adds a third,
Extension, which only warns when -pedantic is set, staying silent
otherwise.

Fixes PR32985.

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: srhines, cfe-commits

Differential Revision: https://reviews.llvm.org/D52849

llvm-svn: 343740
2018-10-03 23:09:29 +00:00
Fangrui Song f7868ec25b Revert "[ASTMatchers] Fix DynamicASTMatchersTests again"
This reverts commit 8a6631a983ec9c1d22cc77c5f55a524a651740f0.

The last fix seems good in Debug mode.

llvm-svn: 343738
2018-10-03 22:56:26 +00:00
Artem Dergachev 31f81399bd [analyzer] [tests] [quickfix] Make more test more resilient for non-defaut -std.
It is important to specify the version of the standard because tests should
test the same thing regardless of the current default version of the standard.

llvm-svn: 343736
2018-10-03 22:48:00 +00:00
George Karpenkov 0550dac3ed [analyzer] Do not crash if the assumption added in TrustNonNullChecker is enough to make the state unfeasible
rdar://43541814

Differential Revision: https://reviews.llvm.org/D52848

llvm-svn: 343735
2018-10-03 22:31:09 +00:00
Fangrui Song f8c4f4e6e7 [ASTMatchers] Fix DynamicASTMatchersTests again
llvm-svn: 343722
2018-10-03 21:00:44 +00:00
Fangrui Song e154d4cbf5 [test] Fix -Wunused-variable in rC343665
llvm-svn: 343721
2018-10-03 20:53:53 +00:00
Stephen Kelly c5ae32a226 Remove stray character from docs
llvm-svn: 343720
2018-10-03 20:53:02 +00:00
Stephen Kelly 719b9f3c58 Update documentation for correctness
llvm-svn: 343719
2018-10-03 20:52:57 +00:00
Stephen Kelly 5834d52d1c Add matchers missing from dynamic AST registry
llvm-svn: 343717
2018-10-03 20:52:51 +00:00
Stephen Kelly 5da85abfa1 Sort list of matchers
llvm-svn: 343716
2018-10-03 20:52:45 +00:00
George Karpenkov 61e48e12b5 [analyzer] [tests] [quickfix] Make the test more resilient for a non-defaut std configuration
llvm-svn: 343715
2018-10-03 20:46:50 +00:00
Patrick Lyster 6bdf63bd32 [OPENMP] Add reverse_offload clause to requires directive
llvm-svn: 343711
2018-10-03 20:07:58 +00:00
Matthew Voss 2016536304 Add template type and value parameter metadata nodes to template variable specializations
Summary: Add an optional attribute referring to a tuple of type and value template parameter nodes to the DIGlobalVariable node. This allows us to record the parameters of template variable specializations.

Reviewers: dblaikie, aprantl, probinson, JDevlieghere, clayborg, jingham

Reviewed By: JDevlieghere

Subscribers: cfe-commits

Tags: #debug-info

Differential Revision: https://reviews.llvm.org/D52058

llvm-svn: 343707
2018-10-03 18:45:04 +00:00
Martin Storsjo ed9688db30 [test] Use --sysroot instead of -B in print-multi-directory.c
This avoids finding a similar matching GCC installation outside
of the test directory tree in the surrounding environment, which
would make the test fail. (This happened on Ubuntu 16.04.)

Differential Revision: https://reviews.llvm.org/D52533

llvm-svn: 343702
2018-10-03 18:24:05 +00:00
Mandeep Singh Grang aef87980a9 [COFF, ARM64] Add _ReadWriteBarrier intrinsic
Reviewers: rnk, mstorsjo, compnerd, TomTan, haripul, javed.absar

Reviewed By: rnk

Subscribers: kristof.beyls, chrib, jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D52809

llvm-svn: 343699
2018-10-03 17:24:21 +00:00
Aaron Puchert 7146b0032f Thread safety analysis: Unwrap __builtin_expect in getTrylockCallExpr
Summary:
When people are really sure they'll get the lock they sometimes use
__builtin_expect. It's also used by some assertion implementations.
Asserting that try-lock succeeded is basically the same as asserting
that the lock is not held by anyone else (and acquiring it).

Reviewers: aaron.ballman, delesley

Reviewed By: aaron.ballman

Subscribers: kristina, cfe-commits

Differential Revision: https://reviews.llvm.org/D52398

llvm-svn: 343681
2018-10-03 11:58:19 +00:00
Stephen Kelly 7c787b8adf Allow comments with '#' in dynamic AST Matchers
Summary: This is necessary for clang-query to be able to handle comments.

Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52751

llvm-svn: 343665
2018-10-03 07:56:43 +00:00
Fangrui Song 65ebd13f41 [Frontend] Delete -print-decl-contexts
Summary: Its job is covered by -ast-dump. The option is rarely used and lacks many AST nodes which will lead to llvm_unreachable() crash.

Reviewers: rsmith, arphaman

Reviewed By: rsmith

Subscribers: jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D52529

llvm-svn: 343660
2018-10-03 03:50:44 +00:00
Matt Arsenault a01151294a OpenCL: Mark printf format string argument
Fixes not warning on format string errors.

llvm-svn: 343653
2018-10-03 02:01:19 +00:00
Petr Hosek ed8311da5a [CMake][Fuchsia] Use libc++ ABIv2 for Fuchsia toolchain
We don't need to provide stable ABI and hence we can use the v2.

Differential Revision: https://reviews.llvm.org/D52660

llvm-svn: 343652
2018-10-03 01:27:00 +00:00
George Karpenkov d3b0846e7a [analyzer] [tests] Hotfix: missing space
llvm-svn: 343643
2018-10-02 22:31:44 +00:00
Reid Kleckner c6fbfd84ad Remove spurious assertion in -Wdocumentation
Some code in OpenCV uses interesting doxygen directives that make it so
we don't see any tokens inside a @note, despite there definitely being
non-whitespace characters there. The consistency check isn't needed.
ParagraphComment supports receiving an empty list of comments.

Fixes PR39007

llvm-svn: 343641
2018-10-02 22:23:27 +00:00
George Karpenkov ac98683423 [analyzer] [tests] Allow specifying entire -analyze-config on the command line, make sure it's always propagated
Differential Revision: https://reviews.llvm.org/D52801

llvm-svn: 343636
2018-10-02 21:19:23 +00:00
George Karpenkov c1ac80820e [analyzer] Fix crash in exploded graph dumping
By allocating new DeclStmt to ASTContext

Differential Revision: https://reviews.llvm.org/D52756

llvm-svn: 343635
2018-10-02 21:19:01 +00:00
Artem Dergachev e602dfbc62 [analyzer] Promote StdCLibraryFunctionsChecker to the apiModeling category.
Because all our languages are C-based, there's no reason to
enable this checker only on UNIX targets.

Patch by Donát Nagy!

Differential Revision: https://reviews.llvm.org/D52722

llvm-svn: 343632
2018-10-02 20:50:40 +00:00
Artem Dergachev d807f9065b [analyzer] Fix symbol discovery in nonloc::LocAsInteger values.
Doesn't do much despite sounding quite bad, but fixes an exotic test case where
liveness of a nonloc::LocAsInteger array index is now evaluated correctly.

Differential Revision: https://reviews.llvm.org/D52667

llvm-svn: 343631
2018-10-02 20:48:12 +00:00
Zachary Turner be6edb3a70 [cl-compat] Change /JMC from unsupported to ignored.
A tracking bug for actually implementing this in clang-cl is at
https://bugs.llvm.org/show_bug.cgi?id=39156.

Differential Revision: https://reviews.llvm.org/D52798

llvm-svn: 343629
2018-10-02 20:42:36 +00:00
Kristof Umann 40271e4fde [analyzer][NFC] Refactor functions in PlistDiagnostics to take AnalyzerOptions as parameter
I intend to add a new flag macro-expnasions-as-events, and unfortunately
I'll only be able to convert the macro piece into an event one once I'm
about to emit it, due to the lack of an avaible Preprocessor object in
the BugReporter.

Differential Revision: https://reviews.llvm.org/D52787

llvm-svn: 343620
2018-10-02 19:27:34 +00:00
Jonas Hahnfeld 3ca4701d35 [OpenMP][NVPTX] Simplify codegen for orphaned parallel, NFCI.
Worker threads fork off to the compiler generated worker function
directly after entering the kernel function. Hence, there is no
need to check whether the current thread is the master if we are
outside of a parallel region (neither SPMD nor parallel_level > 0).

Differential Revision: https://reviews.llvm.org/D52732

llvm-svn: 343618
2018-10-02 19:12:54 +00:00
Jonas Hahnfeld 5aaaecea7c [OpenMP] Simplify code for reductions on distribute directives, NFC.
Only need to care about the 'distribute simd' case, all other composite
directives are handled elsewhere. This was already reflected in the
outer 'if' condition, so all other inner conditions could never be true.

Differential Revision: https://reviews.llvm.org/D52731

llvm-svn: 343617
2018-10-02 19:12:47 +00:00
Yaxun Liu 9767089d00 [HIP] Support early finalization of device code for -fno-gpu-rdc
This patch renames -f{no-}cuda-rdc to -f{no-}gpu-rdc and keeps the original
options as aliases. When -fgpu-rdc is off,
clang will assume the device code in each translation unit does not call
external functions except those in the device library, therefore it is possible
to compile the device code in each translation unit to self-contained kernels
and embed them in the host object, so that the host object behaves like
usual host object which can be linked by lld.

The benefits of this feature is: 1. allow users to create static libraries which
can be linked by host linker; 2. amortized device code linking time.

This patch modifies HIP action builder to insert actions for linking device
code and generating HIP fatbin, and pass HIP fatbin to host backend action.
It extracts code for constructing command for generating HIP fatbin as
a function so that it can be reused by early finalization. It also modifies
codegen of HIP host constructor functions to embed the device fatbin
when it is available.

Differential Revision: https://reviews.llvm.org/D52377

llvm-svn: 343611
2018-10-02 17:48:54 +00:00
Francois Ferrand 6f40e21a16 clang-format: better handle statement macros
Summary:
Some macros are used in the body of function, and actually contain the trailing semicolon: they should thus be automatically followed by a new line, and not get merged with the next line. This is for example the case with Qt's Q_UNUSED macro:

  void foo(int a, int b) {
    Q_UNUSED(a)
    return b;
  }

This patch deals with these cases by introducing a new option to specify list of statement macros. This re-uses the system already in place for foreach macros, to ensure there is no impact on performance.

Reviewers: krasimir, djasper, klimek

Reviewed By: krasimir

Subscribers: acoomans, mgrang, alexfh, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D33440

llvm-svn: 343602
2018-10-02 16:37:51 +00:00
Haojian Wu 714e971540 [Preprocesssor] Filename should fall back to the written name when typo correction fails.
Summary:
The test is added in  Testcase is at https://reviews.llvm.org/D52775. I tried to add the test to clang's code
completion test, it doesn't reproduce the crash.

Reviewers: sammccall, kristina

Reviewed By: sammccall

Subscribers: kristina, ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D52774

llvm-svn: 343592
2018-10-02 14:42:51 +00:00
Haojian Wu dea577191c [Preprocessor] Hide include typo correction behind SpellChecking.
Summary:
Similar to Sema typo correction, the Preprocessor typo correction should
also be hidden behind the SpellChecking flag.

Reviewers: sammccall

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52778

llvm-svn: 343591
2018-10-02 13:59:49 +00:00
Sven van Haastregt a3c6b407ec [OpenCL] Add block argument CodeGen test
r326937 ("[OpenCL] Remove block invoke function from emitted block
literal struct", 2018-03-07) broke block argument handling.  In
particular the commit was causing a crash during code generation, see
the discussion in https://reviews.llvm.org/D43783 .

The offending commit has just been reverted; add a test to avoid
breaking this again in the future.

llvm-svn: 343583
2018-10-02 13:02:27 +00:00
Sven van Haastregt da3b632057 Revert r326937 "[OpenCL] Remove block invoke function from emitted block literal struct"
This reverts r326937 as it broke block argument handling in OpenCL.
See the discussion on https://reviews.llvm.org/D43783 .

The next commit will add a test case that revealed the issue.

llvm-svn: 343582
2018-10-02 13:02:24 +00:00
Mikhail R. Gadelha 32ce136e80 [analyzer] Improvements to the SMT API
Summary:
Several improvements in preparation for the new backends.

Refactoring:

- Removed duplicated methods `fromBoolean`, `fromAPSInt`, `fromInt` and `fromAPFloat`. The methods `mkBoolean`, `mkBitvector` and `mkFloat` are now used instead.
- The names of the functions that convert BVs to FPs were swapped (`mkSBVtoFP`, `mkUBVtoFP`, `mkFPtoSBV`, `mkFPtoUBV`).
- Added a couple of comments in function calls.

Crosscheck encoding:

- Changed how constraints are encoded in the refutation manager so it doesn't start with (false OR ...). This change introduces one duplicated line (see file `BugReporterVisitors.cpp`, the `SMTConv::getRangeExpr is called twice, so I can remove this change if the duplication is a problem.

Reviewers: george.karpenkov, NoQ

Reviewed By: george.karpenkov

Subscribers: xazax.hun, szepet, a.sidorin, Szelethus

Differential Revision: https://reviews.llvm.org/D52365

llvm-svn: 343581
2018-10-02 12:55:48 +00:00
Bruno Ricci 26a2536f8b [AST] Pack the bit-fields of FunctionProtoType into Type.
Move the bit-fields of FunctionProtoType into FunctionTypeBitfields.
This cuts the size of FunctionProtoType by a pointer. Additionally use
llvm::TrailingObjects instead of manually doing the casts + arithmetic.

This patch is bigger then what could be expected for the following reasons:

1. As discussed before in D50631 it would be nice if there was some space left
   in FunctionTypeBitfields for future additions. This patch introduces an
   extra structure FunctionTypeExtraBitfields which is supposed to hold
   uncommon bits and is stored in a trailing object. The number of exception
   types NumExceptions is moved to this struct. As of this patch this trailing
   struct will only be allocated if we have > 0 types in a dynamic exception
   specification.

2. TrailingObjects cannot handle repeated types. Therefore the QualType
   representing an exception type is wrapped in a struct ExceptionType.
   The ExceptionType * is then reinterpret_cast'd to QualType *.

3. TrailingObjects needs the definition of the various trailing classes.
   Therefore ExtParameterInfo, ExceptionType and FunctionTypeExtraBitfields
   are put in FunctionType.

Differential Revision: https://reviews.llvm.org/D52738

Reviewed By: rjmccall

llvm-svn: 343579
2018-10-02 11:46:38 +00:00
Eric Liu b91e08197c [CodeComplete] Re-fix accessibilty of protected members from base class.
Summary:
The initial fix (r337453) had bug and was partially reverted (r338255).
This simplies the original fix by explicitly passing the naming class to the
completion consumer.

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52647

llvm-svn: 343575
2018-10-02 10:29:00 +00:00
Eric Liu b9e17124ea Revert untintentionally commited changes
llvm-svn: 343574
2018-10-02 10:28:54 +00:00
Eric Liu 09c34d77e0 [Lex] TokenConcatenation now takes const Preprocessor
Differential Revision: https://reviews.llvm.org/D52502

llvm-svn: 343573
2018-10-02 10:28:50 +00:00
Kadir Cetinkaya ae45d0a4fd [clang] Implement Override Suggestions in Sema.
Summary:
In clangd we had a new type of completion suggestions for cpp
class/struct/unions that will show override signatures for virtual methods in
base classes. This patch implements it in sema because it is hard to deduce more
info about completion token outside of Sema and handle itchy cases.

See the patch D50898 for more info on the functionality.

In addition to above patch this one also converts the suggestion into a
CK_Pattern with whole insertion text as the name of the suggestion and factors
out CodeCompletionString generation for declerations so that it can be re-used
by others.

Reviewers: ioeric, ilya-biryukov

Reviewed By: ioeric

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52225

llvm-svn: 343568
2018-10-02 09:42:31 +00:00
Oliver Stannard 8f996de629 [AArch64][v8.5A] Test clang option for the Memory Tagging Extension
The implementation of this is in TargetParser, so we only need to add a
test for it in clang.

Patch by Pablo Barrio!

Differential revision: https://reviews.llvm.org/D52493

llvm-svn: 343566
2018-10-02 09:38:59 +00:00
David Bolvansky cf7d2256d6 Added warning for unary minus used with unsigned type
Summary:
Inspired by MSVC, which found some occurrences of this expression on our code base.

Fixes PR38950

Reviewers: rsmith, craig.topper, spatel, RKSimon, aaron.ballman, thakis

Reviewed By: rsmith

Subscribers: joerg, Quuxplusone, lebedev.ri, craig.topper, RKSimon, cfe-commits

Differential Revision: https://reviews.llvm.org/D52137

llvm-svn: 343560
2018-10-02 06:02:30 +00:00
Akira Hatanaka 9d34307788 [CodeGen] Before entering the loop that copies a non-trivial array field
of a non-trivial C struct, copy the preceding trivial fields that
haven't been copied.

This commit fixes a bug where the instructions used to copy the
preceding trivial fields were emitted inside the loop body.

rdar://problem/44185064

llvm-svn: 343556
2018-10-02 01:00:44 +00:00
Akira Hatanaka 8e57b07f66 Distinguish `__block` variables that are captured by escaping blocks
from those that aren't.

This patch changes the way __block variables that aren't captured by
escaping blocks are handled:

- Since non-escaping blocks on the stack never get copied to the heap
  (see https://reviews.llvm.org/D49303), Sema shouldn't error out when
  the type of a non-escaping __block variable doesn't have an accessible
  copy constructor.

- IRGen doesn't have to use the specialized byref structure (see
  https://clang.llvm.org/docs/Block-ABI-Apple.html#id8) for a
  non-escaping __block variable anymore. Instead IRGen can emit the
  variable as a normal variable and copy the reference to the block
  literal. Byref copy/dispose helpers aren't needed either.

This reapplies r343518 after fixing a use-after-free bug in function
Sema::ActOnBlockStmtExpr where the BlockScopeInfo was dereferenced after
it was popped and deleted.

rdar://problem/39352313

Differential Revision: https://reviews.llvm.org/D51564

llvm-svn: 343542
2018-10-01 21:51:28 +00:00
Martin Storsjo f32a0fc80d [MinGW] Allow using ASan
Linking to ASan for MinGW is similar to MSVC, but MinGW always links
the MSVCRT dynamically, so there is only one of the MSVC cases to
consider.

When linking to a shared compiler runtime library on MinGW, the suffix
of the import library is .dll.a.

The existing case of .dll as suffix for windows in general doesn't
seem correct (since this is used for linking). As long as callers never
actually set the Shared flag, the default static suffix of .lib also
worked fine for import libraries as well.

Differential Revision: https://reviews.llvm.org/D52538

llvm-svn: 343537
2018-10-01 20:53:25 +00:00
Akira Hatanaka 3197484701 Revert r343518.
Bots are still failing.

http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/24420
http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/12958

llvm-svn: 343531
2018-10-01 20:29:34 +00:00
Stephen Kelly 97e0f52642 Update CMakeLists.txt snippet so that example compiles
Summary: Previous to this the example didn't work out of the box, it seems some cmake config changed between when this was written and now.

Author: Dan Zimmerman <daniel.zimmerman@me.com>

Reviewers: modocache, steveire

Reviewed By: steveire

Subscribers: smeenai, steveire, cfe-commits

Differential Revision: https://reviews.llvm.org/D52664

llvm-svn: 343530
2018-10-01 20:28:07 +00:00
Akira Hatanaka 2bf09ccfd5 Distinguish `__block` variables that are captured by escaping blocks
from those that aren't.

This patch changes the way __block variables that aren't captured by
escaping blocks are handled:

- Since non-escaping blocks on the stack never get copied to the heap
  (see https://reviews.llvm.org/D49303), Sema shouldn't error out when
  the type of a non-escaping __block variable doesn't have an accessible
  copy constructor.

- IRGen doesn't have to use the specialized byref structure (see
  https://clang.llvm.org/docs/Block-ABI-Apple.html#id8) for a
  non-escaping __block variable anymore. Instead IRGen can emit the
  variable as a normal variable and copy the reference to the block
  literal. Byref copy/dispose helpers aren't needed either.

This reapplies r341754, which was reverted in r341757 because it broke a
couple of bots. r341754 was calling markEscapingByrefs after the call to
PopFunctionScopeInfo, which caused the popped function scope to be
cleared out when the following code was compiled, for example:

$ cat test.m
struct A {
  id data[10];
};

void foo() {
  __block A v;
  ^{ (void)v; };
}

This commit calls markEscapingByrefs before calling PopFunctionScopeInfo
to prevent that from happening.

rdar://problem/39352313

Differential Revision: https://reviews.llvm.org/D51564

llvm-svn: 343518
2018-10-01 18:50:14 +00:00
Krasimir Georgiev be5cda81d5 [clang-format] Update comment, NFCI
The initializer of `ParameterCount` was updated from 1 to 0 in r175165,
but the comment was never touched:
9fc56f2636

llvm-svn: 343517
2018-10-01 18:41:21 +00:00
Krasimir Georgiev 54ff0df2dc [clang-format] Fix typo in comment, NFCI
llvm-svn: 343513
2018-10-01 18:18:00 +00:00
Kristof Umann 4f9fdba4f6 [analyzer][NFC] Refactor functions in PlistDiagnostics to take Preproc as parameter
This is patch is a preparation for the proposed inclusion of macro expansions in the plist output.

Differential Revision: https://reviews.llvm.org/D52735

llvm-svn: 343511
2018-10-01 18:11:51 +00:00
Alexey Bataev e79451a517 [OPENMP][NVPTX] Handle `requires datasharing` flag correctly with
lightweight runtime.

The datasharing flag must be set to `1` when executing SPMD-mode compatible directive with reduction|lastprivate clauses.

llvm-svn: 343492
2018-10-01 16:20:57 +00:00
Sam McCall 3922377544 [Basic] Update clang tests (really testing sys::fs) that broke with r343460
llvm-svn: 343488
2018-10-01 16:07:03 +00:00
Alexey Bataev 4da1d5c33f [OPENMP] Simplify code, NFC.
llvm-svn: 343483
2018-10-01 14:40:06 +00:00
Haojian Wu 1743ebe369 [Preprocessor] Fix a crash when handling non-alpha include header.
Summary: the crash is casued by an assertion in StringRef.
(llvm::StringRef::front() const: Assertion `!empty()' failed.)

Reviewers: sammccall

Subscribers: jsji, cfe-commits

Differential Revision: https://reviews.llvm.org/D52721

llvm-svn: 343481
2018-10-01 14:38:43 +00:00
Alexey Bataev 94c5064701 [OPENMP] Fix enum identifier, NFC.
llvm-svn: 343479
2018-10-01 14:26:31 +00:00
Patrick Lyster 4a370b9f63 Add support for unified_shared_memory clause on requires directive
llvm-svn: 343472
2018-10-01 13:47:43 +00:00
Haojian Wu 06098849c6 Build clang-headers when building clang tools.
Summary:
clang tools require clang headers to work on real project, e.g. when we
build clangd via `ninja clangd`, we expect the binary can run on
real-world project (without running another command `ninja clang-headers`).

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: mgorny, ilya-biryukov, ioeric, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D52714

llvm-svn: 343459
2018-10-01 12:16:38 +00:00
Sam McCall 3e4f5eb33c [CodeComplete] #include completion treats -I as non-system (require header-like extension).
llvm-svn: 343457
2018-10-01 11:56:42 +00:00
Fangrui Song 1d38c13f6e Use the container form llvm::sort(C, ...)
There are a few leftovers of rC343147 that are not (\w+)\.begin but in
the form of ([-[:alnum:]>.]+)\.begin or spanning two lines. Change them
to use the container form in this commit. The 12 occurrences have been
inspected manually for safety.

llvm-svn: 343425
2018-09-30 21:41:11 +00:00
Eric Fiselier 407584c433 Fix linkage error on ProgramPoint's dump method.
Currently, ProgramPoint::dump calls the out-of-line function ProgramPoint::print. This causes
libraries which include ProgramPoint.h to become dependent on libclangAnalysis, which in turn
causes missing symbol link error when building with -DBUILD_SHARED_LIBS=ON -DLLVM_ENABLE_MODULES=ON.

The breakage was introduced in r343160.

This patch fixes the issues by moving ProgramPoint::dump's declaration out of line.

llvm-svn: 343420
2018-09-30 18:05:39 +00:00
Ed Maste c37e58cc19 Update ifunc attribute support documentation
Previously we documented GNU binutils and glibc versions required for
ifunc support, but our own lld linker and FreeBSD's rtld also support
ifuncs.

Differential Revision:	https://reviews.llvm.org/D52696

llvm-svn: 343408
2018-09-30 15:08:18 +00:00
Craig Topper 716e8e6858 [X86] Add more of the icc unaligned load/store to/from 128 bit vector intrinsics
Summary:
This patch adds
_mm_loadu_si32
_mm_loadu_si16
_mm_storeu_si64
_mm_storeu_si32
_mm_storeu_si16

We already had _mm_load_si64.

Reviewers: spatel, RKSimon

Reviewed By: RKSimon

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52665

llvm-svn: 343388
2018-09-29 17:49:42 +00:00
Simon Pilgrim d029a9bfa0 Attempt to fix a -Wdocumentation-html warning. NFCI.
llvm-svn: 343374
2018-09-29 13:30:43 +00:00
Kristina Brooks dc2cb4f1c7 [clang][www] Fix typo. NFC
Fix a one letter typo in diagnostics.html. (Wanted to try it with
arcanist).

Patch by king6cong

Differential Revision: https://reviews.llvm.org/D52511

llvm-svn: 343372
2018-09-29 09:45:21 +00:00
Vitaly Buka 0509070811 [cxx2a] Fix warning triggered by r343285
llvm-svn: 343369
2018-09-29 02:17:12 +00:00
Erik Pilkington 6f11db1370 Support enums with a fixed underlying type in all language modes.
Previously we supported these in C++, ObjC, and C with -fms-extensions.

rdar://43831380

Differential revision: https://reviews.llvm.org/D52339

llvm-svn: 343360
2018-09-28 20:24:58 +00:00
Alexey Bataev bc52967835 [OPENMP]Fix PR39084: Check datasharing attributes of reduction variables only.
According to OpenMP, the reduction item must be shared in parent region.
But the item can be an array section or array subscript. In this case,
we should not check for the datasharing of the base declaration.

llvm-svn: 343356
2018-09-28 19:33:14 +00:00
George Karpenkov c82d457db5 [analyzer] [NFC] Remove unused parameters, as found by -Wunused-parameter
Differential Revision: https://reviews.llvm.org/D52640

llvm-svn: 343353
2018-09-28 18:49:41 +00:00
George Karpenkov c704f4fbd0 [analyzer] Provide an option to dump generated exploded graphs to a given file.
Dumping graphs instead of opening them is often very useful,
e.g. for transfer or converting to SVG.

Basic sanity check for generated exploded graphs.

Differential Revision: https://reviews.llvm.org/D52637

llvm-svn: 343352
2018-09-28 18:49:21 +00:00
Richard Smith 8baa50013c [cxx2a] P0614R1: Support init-statements in range-based for loops.
We don't yet support this for the case where a range-based for loop is
implicitly rewritten to an ObjC for..in statement.

llvm-svn: 343350
2018-09-28 18:44:09 +00:00
Craig Topper 6ad9220067 [X86] Add the movbe instruction intrinsics from icc.
These intrinsics exist in icc. They can be found on the Intel Intrinsics Guide website.

All the backend support is in place to pattern match a load+bswap or a bswap+store pattern to the MOVBE instructions. So we just need to get the frontend to emit the correct IR. The pointer arguments in icc are declared as void so I had to jump through a packed struct to forcing a specific alignment on the load/store. Same trick we use in the unaligned vector load/store intrinsics

Differential Revision: https://reviews.llvm.org/D52586

llvm-svn: 343343
2018-09-28 17:09:51 +00:00
Saleem Abdulrasool f3a981e801 AST: add missing ObjC extensions to MS style name decoration
Add support for encoding type arguments for lightweight generics in
Objective-C++ mode.  Additionally, add support for the `__kindof` modifier.
This should complete the coverage of the ObjC extensions that clang currently
supports under the MS style name decoration scheme.

This is implemented similar to the Objective-C lifetime qualifiers decoration:
a template specialization in the `__ObjC` namespace so that we can interoperate
with Microsoft's tools as well as ensure that we do not accidentally collide
with new features in the Microsoft implementation.

Since the `__kindof` appertains to the type and not the pointer, we apply the
template specialization to the underlying type instead of the pointer type.

Unfortunately, until D52581 is resolved, the generated name is not really
compatible with the MS tools as well as breaks interoperability with
Objective-C++ and C++.

This resolves PR37754!

llvm-svn: 343338
2018-09-28 16:47:53 +00:00
Alexey Bataev a5178f5369 [DRIVER][OFFLOAD] Do not invoke unbundler on unsupported file types.
clang-offload-bundler should not be invoked with the unbundling action
when the input file type does not match the action type. For example,
.so files should be unbundled during linking phase and should be linked
only with the host code.

llvm-svn: 343335
2018-09-28 16:17:59 +00:00
Sam Parker d476cd304b [ARM] Prevent DSP and SIM32 being set for v6m
My previous change (rL340911) set the two features for architectures
>= 6, which wrongly includes v6m. Now set to >= 6 and not Cortex-M.

Differential Revision: https://reviews.llvm.org/D52644

llvm-svn: 343309
2018-09-28 10:18:02 +00:00
Owen Pan cb5ffbed71 [ClangFormat] 'try' of function-try-block doesn't obey BraceWrapping
It should respond to AfterFunction, not AfterControlStatement.

Fixes PR39067

llvm-svn: 343305
2018-09-28 09:17:00 +00:00
Peter Smith 47a8980afa [ARM] Alter test to account for change to armv6k default CPU
Review D52594 will change the default in llvm for armv6k from the
non-existent cpu arm1176jf-s to mpcore. The tests in arm-cortex-cpus.c
need to be updated to account for this change.

Differential Revision: https://reviews.llvm.org/D52595

llvm-svn: 343304
2018-09-28 09:04:31 +00:00
Richard Smith cff420120f Handle dependent class template names in class template argument
deduction for new-expressions.

llvm-svn: 343293
2018-09-28 03:18:53 +00:00
Richard Smith 9b2c5e7c44 [cxx2a] P0641R2: (Some) type mismatches on defaulted functions only
render the function deleted instead of rendering the program ill-formed.

This change also adds an enabled-by-default warning for the case where
an explicitly-defaulted special member function of a non-template class
is implicitly deleted by the type checking rules. (This fires either due
to this language change or due to pre-C++20 reasons for the member being
implicitly deleted). I've tested this on a large codebase and found only
bugs (where the program means something that's clearly different from
what the programmer intended), so this is enabled by default, but we
should revisit this if there are problems with this being enabled by
default.

llvm-svn: 343285
2018-09-28 01:16:43 +00:00
Richard Smith 864949bda1 [cxx2a] P0624R2: Lambdas with no capture-default are
default-constructible and assignable.

llvm-svn: 343279
2018-09-27 22:47:04 +00:00
George Karpenkov 6d229be5ec [analyzer] Hotfix for the bug in exploded graph printing
llvm-svn: 343276
2018-09-27 22:31:13 +00:00
Erik Pilkington 46420b6fee NFC: Fix some darwin linker warnings introduced in r338385
The darwin linker was complaining about Toolchains/RISCV.cpp and
Toolchains/Arch/RISCV.cpp had the same name. Fix is to just rename
Toolchains/RISCV.cpp to Toolchains/RISCVToolchain.cpp.

Differential revision: https://reviews.llvm.org/D52574

llvm-svn: 343263
2018-09-27 20:36:28 +00:00
Gheorghe-Teodor Bercea 8233af90e1 [OpenMP] Make default parallel for schedule in NVPTX target regions in SPMD mode achieve coalescing
Summary: Set default schedule for parallel for loops to schedule(static, 1) when using SPMD mode on the NVPTX device offloading toolchain to ensure coalescing.

Reviewers: ABataev, Hahnfeld, caomhin

Reviewed By: ABataev

Subscribers: jholewinski, guansong, cfe-commits

Differential Revision: https://reviews.llvm.org/D52629

llvm-svn: 343260
2018-09-27 20:29:00 +00:00
Patrick Lyster e653b63d83 Test commit. NFC
llvm-svn: 343258
2018-09-27 19:30:32 +00:00
Gheorghe-Teodor Bercea 02650d4c2c [OpenMP] Make default distribute schedule for NVPTX target regions in SPMD mode achieve coalescing
Summary: For the OpenMP NVPTX toolchain choose a default distribute schedule that ensures coalescing on the GPU when in SPMD mode. This significantly increases the performance of offloaded target code and reduces the number of registers used on the GPU side.

Reviewers: ABataev, caomhin, Hahnfeld

Reviewed By: ABataev, Hahnfeld

Subscribers: Hahnfeld, jholewinski, guansong, cfe-commits

Differential Revision: https://reviews.llvm.org/D52434

llvm-svn: 343253
2018-09-27 19:22:56 +00:00
Roman Lebedev fe7dd583b8 [clang][ubsan][NFC] Slight test cleanup in preparation for D50901
Reviewers: vsk, vitalybuka, filcab

Reviewed By: vitalybuka

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52589

llvm-svn: 343251
2018-09-27 19:07:48 +00:00
Jonas Hahnfeld fb8ca8a1ec Fix greedy FileCheck expression in test/Driver/mips-abi.c
'ld{{.*}}"' seems to match the complete line for me which is failing
the test. Only allow an optional '.exe' for Windows systems as most
other tests do.
Another possibility would be to collapse the greedy expression with
the next check to avoid matching the full line.

Differential Revision: https://reviews.llvm.org/D52619

llvm-svn: 343240
2018-09-27 17:27:48 +00:00
George Karpenkov 2b7682d1b4 [analyzer] Highlight nodes which have error reports in them in red in exploded graph
Differential Revision: https://reviews.llvm.org/D52584

llvm-svn: 343239
2018-09-27 17:26:41 +00:00
Jonas Hahnfeld a981f67bcd [OpenMP] Improve search for libomptarget-nvptx
When looking for the bclib Clang considered the default library
path first while it preferred directories in LIBRARY_PATH when
constructing the invocation of nvlink. The latter actually makes
more sense because during development it allows using a non-default
runtime library. So change the search for the bclib to start
looking in directories given by LIBRARY_PATH.
Additionally add a new option --libomptarget-nvptx-path= which
will be searched first. This will be handy for testing purposes.

Differential Revision: https://reviews.llvm.org/D51686

llvm-svn: 343230
2018-09-27 16:12:32 +00:00
Eric Liu bb898704e9 [Tooling] Get rid of uses of llvm::Twine::str which is slow. NFC
llvm-svn: 343224
2018-09-27 14:50:24 +00:00
Oliver Stannard 4ed966f90f [AArch64][v8.5A] Test optional Armv8.5-A random number extension
The implementation of this is in TargetParser, so we only need to add a
test for it in clang.

Patch by Pablo Barrio!

Differential revision: https://reviews.llvm.org/D52492

llvm-svn: 343220
2018-09-27 14:20:59 +00:00
Sven van Haastregt d1f3002cee [OpenCL] Improve extension-version.cl and to_addr_builtin.cl tests
Add cl_khr_depth_images to extension-version.cl.

Extend to_addr_builtin.cl to additionally test the built-in methods
to_private and to_local, and test assignment with to_global to
incorrect types.

Patch by Alistair Davies.

Differential Revision: https://reviews.llvm.org/D52020

llvm-svn: 343207
2018-09-27 13:20:29 +00:00
Kristof Umann e4f81ec366 Revert untintentionally commited changes
llvm-svn: 343205
2018-09-27 12:46:37 +00:00
Kristof Umann b416dbfb04 [Lex] TokenConcatenation now takes const Preprocessor
Differential Revision: https://reviews.llvm.org/D52502

llvm-svn: 343204
2018-09-27 12:40:16 +00:00
Martin Storsjo 0b339e4d80 [Sema] Handle __va_start for Windows/ARM64 in the same way as for ARM
This fixes PR39090.

Differential Revision: https://reviews.llvm.org/D52571

llvm-svn: 343184
2018-09-27 08:24:15 +00:00
Vitaly Buka 84ffd06f8b Revert "[DebugInfo] Generate debug information for labels."
This reverts commit r343148.

It crashes on sanitizer-x86_64-linux-autoconf.

llvm-svn: 343183
2018-09-27 08:15:24 +00:00
Martin Probst 3315aed44a clang-format: [JS] conditional types.
Summary:
This change adds some rudimentary support for conditional types.
Specifically it avoids breaking before `extends` and `infer` keywords,
which are subject to Automatic Semicolon Insertion, so breaking before
them creates incorrect syntax.

The actual formatting of the type expression is odd, but there is as of
yet no clear idea on how to format these.

See https://www.typescriptlang.org/docs/handbook/release-notes/typescript-2-8.html#conditional-types.

Reviewers: krasimir

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52536

llvm-svn: 343179
2018-09-27 06:48:13 +00:00
Simon Atanasyan 0c0fb4b765 [driver][mips] Adjust target triple accordingly to provided ABI name
Explicitly selected MIPS ABI using the `-mabi` option implies
corresponding target triple. For 'O32' ABI it's a 32-bit target triple
like `mips-linux-gnu`. For 'N32' and 'N64' ABIs it's a 64-bit target
triple like `mips64-linux-gnu`. This patch adjusts target triple
accordingly these rules like we do for pseudo-target flags '-m64',
'-m32' etc already.

Differential revision: https://reviews.llvm.org/D52290

llvm-svn: 343169
2018-09-27 05:04:50 +00:00
George Karpenkov 27ec210fbd [analyzer] [NFC] Move the code for dumping the program point to ProgramPoint
So we can dump them outside of viewing the exploded grpah.

Differential Revision: https://reviews.llvm.org/D52583

llvm-svn: 343160
2018-09-27 01:46:18 +00:00
George Karpenkov 4b9bb7cebb [analyzer] [NFC] Heavy refactoring of trackNullOrUndefValue
Differential Revision: https://reviews.llvm.org/D52519

llvm-svn: 343159
2018-09-27 01:45:57 +00:00