platform/upstream/llvm.git
6 years agoFix Scope::dump()
Richard Trieu [Thu, 18 Jan 2018 04:28:56 +0000 (04:28 +0000)]
Fix Scope::dump()

The dump function for Scope only has 20 out of the 24 flags.  Since it looped
until no flags were left, having an unknown flag lead to an infinite loop.
That loop has been changed to a single pass for each flag, plus an assert to
alert if new flags are added.

llvm-svn: 322813

6 years agoUpdate Google Benchmark library
Eric Fiselier [Thu, 18 Jan 2018 04:23:01 +0000 (04:23 +0000)]
Update Google Benchmark library

llvm-svn: 322812

6 years ago[DAGCombiner] Add a DAG combine to turn a splat build_vector where the splat elemnt...
Craig Topper [Thu, 18 Jan 2018 04:17:06 +0000 (04:17 +0000)]
[DAGCombiner] Add a DAG combine to turn a splat build_vector where the splat elemnt is a bitcast from a vector type into a concat_vector

For example, a build_vector of i64 bitcasted from v2i32 can be turned into a concat_vectors of the v2i32 vectors with a bitcast to a vXi64 type

Differential Revision: https://reviews.llvm.org/D42090

llvm-svn: 322811

6 years agoFix most GCC test failures.
Eric Fiselier [Thu, 18 Jan 2018 03:41:06 +0000 (03:41 +0000)]
Fix most GCC test failures.

This patch fixes almost all currently failing tests when
using GCC ToT.

The specific changes are:

(A) Workaround gcc.gnu.org/PR83921 which rejects variables w/o initializers
in constexpr contexts -- even when the variable is an empty class. This
bug has been worked around at all callsites by adding an initializer.
Additionally a new test, constexpr_init.pass.cpp, has been added to
test that Clang doesn't suffer from these bugs.

(B) Fix streambuf.assign/swap.pass.cpp. This test was never actually
calling the swap method as intended. In fact, the swap function it
intended to call was ill-formed when instantiated. GCC diagnosed
this ill-formedness w/o needing an instantiation.

(C) size_delete11.pass.cpp was fixed by adding c++2a to the list of
unsupported dialects.

llvm-svn: 322810

6 years ago[analyzer] a few helper methods for getting and comparing symbolic values
George Karpenkov [Thu, 18 Jan 2018 03:18:36 +0000 (03:18 +0000)]
[analyzer] a few helper methods for getting and comparing symbolic values

API calls should express intent, and that's a motivation behind this patch.

Differential Revision: https://reviews.llvm.org/D42218

llvm-svn: 322809

6 years agoUpdate for llvm change.
Rafael Espindola [Thu, 18 Jan 2018 02:08:38 +0000 (02:08 +0000)]
Update for llvm change.

llvm-svn: 322808

6 years agoUpdate for llvm change.
Rafael Espindola [Thu, 18 Jan 2018 02:08:32 +0000 (02:08 +0000)]
Update for llvm change.

llvm-svn: 322807

6 years agoMake GlobalValues with non-default visibilility dso_local.
Rafael Espindola [Thu, 18 Jan 2018 02:08:23 +0000 (02:08 +0000)]
Make GlobalValues with non-default visibilility dso_local.

This is similar to r322317, but for visibility. It is not as neat
because we have to special case extern_weak.

The idea is the same as the previous change, make the transition to
explicit dso_local easier for the frontends. With this they only have
to add dso_local to symbols where we need some external information to
decide if it is dso_local (like it being part of an ELF executable).

llvm-svn: 322806

6 years agoGlobalISel: Make MachineCSE runnable in the middle of the GlobalISel
Justin Bogner [Thu, 18 Jan 2018 02:06:56 +0000 (02:06 +0000)]
GlobalISel: Make MachineCSE runnable in the middle of the GlobalISel

Right now, it is not possible to run MachineCSE in the middle of the
GlobalISel pipeline. Being able to run generic optimizations between the
core passes of GlobalISel was one of the goals of the new ISel framework.
This is the first attempt to do it.

The problem is that MachineCSE pass assumes all register operands have a
register class, which, in GlobalISel context, won't be true until after the
InstructionSelect pass. The reason for this behaviour is that before
replacing one virtual register with another, MachineCSE pass (and most of
the other optimization machine passes) must check if the virtual registers'
constraints have a (sufficiently large) intersection, and constrain the
resulting register appropriately if such intersection exists.

GlobalISel extends the representation of such constraints from just a
register class to a triple (low-level type, register bank, register
class).

This commit adds MachineRegisterInfo::constrainRegAttrs method that extends
MachineRegisterInfo::constrainRegClass to such a triple.

The idea is that going forward we should use:

- RegisterBankInfo::constrainGenericRegister within GlobalISel's
  InstructionSelect pass
- MachineRegisterInfo::constrainRegClass within SelectionDAG ISel
- MachineRegisterInfo::constrainRegAttrs everywhere else regardless
  the target and instruction selector it uses.

Patch by Roman Tereshin. Thanks!

llvm-svn: 322805

6 years ago[analyzer] NFC: Remove unused method - BugReporter::RemoveUnneededCalls().
Artem Dergachev [Thu, 18 Jan 2018 01:40:31 +0000 (01:40 +0000)]
[analyzer] NFC: Remove unused method - BugReporter::RemoveUnneededCalls().

Patch by Henry Wong!

Differential Revision: https://reviews.llvm.org/D42106

llvm-svn: 322804

6 years ago[CMake] Make check-lldb work with LLDB_CODESIGN_IDENTITY=''
Vedant Kumar [Thu, 18 Jan 2018 01:16:30 +0000 (01:16 +0000)]
[CMake] Make check-lldb work with LLDB_CODESIGN_IDENTITY=''

On Darwin, if a test machine isn't set up for code-signing (see
docs/code-signing.txt), running check-lldb should use the system
debugserver instead of the unsigned one built in-tree. This makes it
possible to run lldb's test suite without having code-signing set up,
which is really convenient.

Differential Revision: https://reviews.llvm.org/D42215

llvm-svn: 322803

6 years ago[WebAssembly] Remove duplicated RTLIB names
Derek Schuff [Thu, 18 Jan 2018 01:15:45 +0000 (01:15 +0000)]
[WebAssembly] Remove duplicated RTLIB names

Remove the tight coupling between llvm/CodeGenRuntimeLibcalls.def and
the table of supported singatures for wasm. This will allow adding new libcalls
without changing wasm's signature table.

Also, some cleanup:
Use ManagedStatics instead of const tables to avoid memory/binary bloat.
Use a StringMap instead of a linear search for name lookup.

Differential Revision: https://reviews.llvm.org/D35592

llvm-svn: 322802

6 years agoHandle parsing AT(ADDR(.foo-bar)).
Rafael Espindola [Thu, 18 Jan 2018 01:14:57 +0000 (01:14 +0000)]
Handle parsing AT(ADDR(.foo-bar)).

The problem we had with it is that anything inside an AT is an
expression, so we failed to parse the section name because of the - in
it.

llvm-svn: 322801

6 years agoFix the failure caused by r322773
Volkan Keles [Thu, 18 Jan 2018 01:10:30 +0000 (01:10 +0000)]
Fix the failure caused by r322773

Do not run GlobalISel if `-fast-isel=0 -global-isel=false`.

llvm-svn: 322800

6 years ago[analyzer] NFC: RetainCount: Protect from dumping raw region to path notes.
Artem Dergachev [Thu, 18 Jan 2018 01:01:56 +0000 (01:01 +0000)]
[analyzer] NFC: RetainCount: Protect from dumping raw region to path notes.

MemRegion::getString() is a wrapper around MemRegion::dump(), which is not
user-friendly and should never be used for diagnostic messages.

Actual cases where raw dumps were reaching the user were unintentionally fixed
in r315736; these were noticed accidentally and shouldn't be reproducible
anymore. For now RetainCountChecker only tracks pointers through variable
regions, and for those dumps are "fine". However, we should still use a less
dangerous method for producing our path notes.

This patch replaces the dump with printing a variable name, asserting that this
is indeed a variable.

Differential Revision: https://reviews.llvm.org/D42015

llvm-svn: 322799

6 years ago[analyzer] NFC: Use "= default" for default ProgramPoint constructors.
Artem Dergachev [Thu, 18 Jan 2018 00:55:29 +0000 (00:55 +0000)]
[analyzer] NFC: Use "= default" for default ProgramPoint constructors.

Differential Revision: https://reviews.llvm.org/D41935

llvm-svn: 322798

6 years ago[analyzer] operator new: Fix callback order for CXXNewExpr.
Artem Dergachev [Thu, 18 Jan 2018 00:53:50 +0000 (00:53 +0000)]
[analyzer] operator new: Fix callback order for CXXNewExpr.

PreStmt<CXXNewExpr> was never called.

Additionally, under c++-allocator-inlining=true, PostStmt<CXXNewExpr> was
called twice when the allocator was inlined: once after evaluating the
new-expression itself, once after evaluating the allocator call which, for the
lack of better options, uses the new-expression as the call site.

This patch fixes both problems.

Differential Revision: https://reviews.llvm.org/D41934
rdar://problem/12180598

llvm-svn: 322797

6 years ago[analyzer] operator new: Add a new ProgramPoint for check::NewAllocator.
Artem Dergachev [Thu, 18 Jan 2018 00:50:19 +0000 (00:50 +0000)]
[analyzer] operator new: Add a new ProgramPoint for check::NewAllocator.

Add PostAllocatorCall program point to represent the moment in the analysis
between the operator new() call and the constructor call. Pointer cast from
"void *" to the correct object pointer type has already happened by this point.

The new program point, unlike the previously used PostImplicitCall, contains a
reference to the new-expression, which allows adding path diagnostics over it.

Differential Revision: https://reviews.llvm.org/D41800
rdar://problem/12180598

llvm-svn: 322796

6 years ago[analyzer] Suppress "this" pointer escape during construction.
Artem Dergachev [Thu, 18 Jan 2018 00:44:41 +0000 (00:44 +0000)]
[analyzer] Suppress "this" pointer escape during construction.

Pointer escape event notifies checkers that a pointer can no longer be reliably
tracked by the analyzer. For example, if a pointer is passed into a function
that has no body available, or written into a global, MallocChecker would
no longer report memory leaks for such pointer.

In case of operator new() under -analyzer-config c++-allocator-inlining=true,
MallocChecker would start tracking the pointer allocated by operator new()
only to immediately meet a pointer escape event notifying the checker that the
pointer has escaped into a constructor (assuming that the body of the
constructor is not available) and immediately stop tracking it. Even though
it is theoretically possible for such constructor to put "this" into
a global container that would later be freed, we prefer to preserve the old
behavior of MallocChecker, i.e. a memory leak warning, in order to
be able to find any memory leaks in C++ at all. In fact, c++-allocator-inlining
*reduces* the amount of false positives coming from this-pointers escaping in
constructors, because it'd be able to inline constructors in some cases.

With other checkers working similarly, we simply suppress the escape event for
this-value of the constructor, regardless of analyzer options.

Differential Revision: https://reviews.llvm.org/D41797
rdar://problem/12180598

llvm-svn: 322795

6 years agolibcxx: Define set_unexpected, _get_unexpected and __uncaught_exceptions without...
Peter Collingbourne [Thu, 18 Jan 2018 00:33:35 +0000 (00:33 +0000)]
libcxx: Define set_unexpected, _get_unexpected and __uncaught_exceptions without dllimport.

It turns out that the MSVC headers define these functions without
dllimport even when compiling with /MD. This change fixes the resulting
compile-time error.

Differential Revision: https://reviews.llvm.org/D42207

llvm-svn: 322794

6 years ago[Sanitizers] Changes in Hwasan allocator missed in D42198.
Alex Shlyapnikov [Thu, 18 Jan 2018 00:23:46 +0000 (00:23 +0000)]
[Sanitizers] Changes in Hwasan allocator missed in D42198.

Converting a few failure handler calls missed in D42198.

llvm-svn: 322793

6 years agoUse an enum value instead of a string.
Rafael Espindola [Thu, 18 Jan 2018 00:20:03 +0000 (00:20 +0000)]
Use an enum value instead of a string.

The old StringSwitch use was also broken. It assumed that a
StringSwitch returns Optional<T> instead of T and was missing a
.Default.

llvm-svn: 322792

6 years ago[analyzer] operator new: Fix path diagnostics around the operator call.
Artem Dergachev [Thu, 18 Jan 2018 00:10:21 +0000 (00:10 +0000)]
[analyzer] operator new: Fix path diagnostics around the operator call.

Implements finding appropriate source locations for intermediate diagnostic
pieces in path-sensitive bug reports that need to descend into an inlined
operator new() call that was called via new-expression. The diagnostics have
worked correctly when operator new() was called "directly".

Differential Revision: https://reviews.llvm.org/D41409
rdar://problem/12180598

llvm-svn: 322791

6 years ago[analyzer] NFC: operator new: Fix new(nothrow) definition in tests.
Artem Dergachev [Thu, 18 Jan 2018 00:03:43 +0000 (00:03 +0000)]
[analyzer] NFC: operator new: Fix new(nothrow) definition in tests.

Fix the const qualifier so that the operator defined in the tests indeed does
override the default global nothrow version of new.

Differential Revision: https://reviews.llvm.org/D41408

llvm-svn: 322790

6 years ago[MachineOutliner] Add DISubprograms to outlined functions.
Jessica Paquette [Thu, 18 Jan 2018 00:00:58 +0000 (00:00 +0000)]
[MachineOutliner] Add DISubprograms to outlined functions.

Before, it wasn't possible to get backtraces inside outlined functions. This
commit adds DISubprograms to the IR functions created by the outliner which
makes this possible. Also attached a test that ensures that the produced
debug information is correct. This is useful to users that want to debug
outlined code.

llvm-svn: 322789

6 years ago[CodeGen] Hoist common AsmPrinter code out of X86, ARM, and AArch64
Reid Kleckner [Wed, 17 Jan 2018 23:55:23 +0000 (23:55 +0000)]
[CodeGen] Hoist common AsmPrinter code out of X86, ARM, and AArch64

Every known PE COFF target emits /EXPORT: linker flags into a .drective
section. The AsmPrinter should handle this.

While we're at it, use global_values() and emit each export flag with
its own .ascii directive. This should make the .s file output more
readable.

llvm-svn: 322788

6 years ago[analyzer] operator new: Add a new checker callback, check::NewAllocator.
Artem Dergachev [Wed, 17 Jan 2018 23:46:13 +0000 (23:46 +0000)]
[analyzer] operator new: Add a new checker callback, check::NewAllocator.

The callback runs after operator new() and before the construction and allows
the checker to access the casted return value of operator new() (in the
sense of r322780) which is not available in the PostCall callback for the
allocator call.

Update MallocChecker to use the new callback instead of PostStmt<CXXNewExpr>,
which gets called after the constructor.

Differential Revision: https://reviews.llvm.org/D41406
rdar://problem/12180598

llvm-svn: 322787

6 years ago[LangRef] Clarify Varargs forwarding for musttail calls.
Florian Hahn [Wed, 17 Jan 2018 23:29:25 +0000 (23:29 +0000)]
[LangRef] Clarify Varargs forwarding for musttail calls.

This clarification was suggested by @efriedma in D41335, which uses this
behavior to inline musttail calls with varargs.

Reviewers: hfinkel, efriedma, rnk

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D41861

llvm-svn: 322786

6 years ago[hwasan] LLVM-level flags for linux kernel-compatible hwasan instrumentation.
Evgeniy Stepanov [Wed, 17 Jan 2018 23:24:38 +0000 (23:24 +0000)]
[hwasan] LLVM-level flags for linux kernel-compatible hwasan instrumentation.

Summary:
-hwasan-mapping-offset defines the non-zero shadow base address.
-hwasan-kernel disables calls to __hwasan_init in module constructors.
Unlike ASan, -hwasan-kernel does not force callback instrumentation.
This is controlled separately with -hwasan-instrument-with-calls.

Reviewers: kcc

Subscribers: srhines, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D42141

llvm-svn: 322785

6 years ago[Sanitizers] Make common allocator agnostic to failure handling modes.
Alex Shlyapnikov [Wed, 17 Jan 2018 23:20:36 +0000 (23:20 +0000)]
[Sanitizers] Make common allocator agnostic to failure handling modes.

Summary:
Make common allocator agnostic to failure handling modes and move the
decision up to the particular sanitizer's allocator, where the context
is available (call stack, parameters, return nullptr/crash mode etc.)

It simplifies the common allocator and allows the particular sanitizer's
allocator to generate more specific and detailed error reports (which
will be implemented later).

The behavior is largely the same, except one case, the violation of the
common allocator's check for "size + alignment" overflow is now reportied
as OOM instead of "bad request". It feels like a worthy tradeoff and
"size + alignment" is huge in this case anyway (thus, can be interpreted
as not enough memory to satisfy the request). There's also a Report()
statement added there.

Reviewers: eugenis

Subscribers: kubamracek, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D42198

llvm-svn: 322784

6 years ago[ASTMatchers] Support generating docs for single-line matchers
Benjamin Kramer [Wed, 17 Jan 2018 23:14:49 +0000 (23:14 +0000)]
[ASTMatchers] Support generating docs for single-line matchers

clang-format likes this format. PR35989.

llvm-svn: 322783

6 years ago[scudo] Fix for the Scudo interface function scope
Kostya Kortchinsky [Wed, 17 Jan 2018 23:10:02 +0000 (23:10 +0000)]
[scudo] Fix for the Scudo interface function scope

Summary:
A forgotten include in `scudo_allocator.cpp` made the symbol only local :/

Before:
```
nm ./lib/clang/7.0.0/lib/linux/libclang_rt.scudo-i686-android.so | grep rss
00024730 t __scudo_set_rss_limit
```
After:
```
nm ./lib/clang/7.0.0/lib/linux/libclang_rt.scudo-i686-android.so | grep rs
00024760 T __scudo_set_rss_limit
```
And we want `T`!

This include also means that we can get rid of the `extern "C"` in the C++
file, the compiler does fine without it (note that this was already the case
for all the `__sanitizer_*` interface functions.

Reviewers: alekseyshl, eugenis

Reviewed By: eugenis

Subscribers: #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D42199

llvm-svn: 322782

6 years ago[analyzer] operator new: Fix ambigious type name.
Artem Dergachev [Wed, 17 Jan 2018 23:03:25 +0000 (23:03 +0000)]
[analyzer] operator new: Fix ambigious type name.

Hopefully fixes an MSVC buildbot failure.

llvm-svn: 322781

6 years ago[analyzer] operator new: Fix memory space for the returned region.
Artem Dergachev [Wed, 17 Jan 2018 22:58:35 +0000 (22:58 +0000)]
[analyzer] operator new: Fix memory space for the returned region.

Make sure that with c++-allocator-inlining=true we have the return value of
conservatively evaluated operator new() in the correct memory space (heap).
This is a regression/omission that worked well in c++-allocator-inlining=false.

Heap regions are superior to regular symbolic regions because they have
stricter aliasing constraints: heap regions do not alias each other or global
variables.

Differential Revision: https://reviews.llvm.org/D41266
rdar://problem/12180598

llvm-svn: 322780

6 years ago[Sema] Allow conversion between long double and __float128.
Benjamin Kramer [Wed, 17 Jan 2018 22:56:57 +0000 (22:56 +0000)]
[Sema] Allow conversion between long double and __float128.

We should only ban this if long double is a double double. x86's 80 bit
long double is fine and supported by the backend.

llvm-svn: 322779

6 years ago[DOXYGEN] Fix doxygen and content issues in xmmintrin.h
Douglas Yung [Wed, 17 Jan 2018 22:53:15 +0000 (22:53 +0000)]
[DOXYGEN] Fix doxygen and content issues in xmmintrin.h

- Fix inaccurate instruction listings.
- Fix small issues in _mm_getcsr and _mm_setcsr.
- Fix description of NaN handling in comparison intrinsics.
- Fix inaccurate description of _mm_movemask_pi8.
- Fix inaccurate instruction mappings.
- Fix typos.
- Clarify wording on some descriptions.
- Fix bit ranges in return value.
- Fix typo in _mm_move_ms intrinsic instruction since it operates on singe-precision values, not double.
- This patch was made by Craig Flores

Differential Revision: https://reviews.llvm.org/D41523

llvm-svn: 322778

6 years ago[analyzer] operator new: Model the cast of returned pointer into object type.
Artem Dergachev [Wed, 17 Jan 2018 22:51:19 +0000 (22:51 +0000)]
[analyzer] operator new: Model the cast of returned pointer into object type.

According to [basic.stc.dynamic.allocation], the return type of any C++
overloaded operator new() is "void *". However, type of the new-expression
"new T()" and the type of "this" during construction of "T" are both "T *".

Hence an implicit cast, which is not present in the AST, needs to be performed
before the construction. This patch adds such cast in the case when the
allocator was indeed inlined. For now, in the case where the allocator was *not*
inlined we still use the same symbolic value (which is a pure SymbolicRegion of
type "T *") because it is consistent with how we represent the casts and causes
less surprise in the checkers after switching to the new behavior.

The better approach would be to represent that value as a cast over a
SymbolicRegion of type "void *", however we have technical difficulties
conjuring such region without any actual expression of type "void *" present in
the AST.

Differential Revision: https://reviews.llvm.org/D41250
rdar://problem/12180598

llvm-svn: 322777

6 years agoFix nodiscard failure tests on compilers w/o -verify.
Eric Fiselier [Wed, 17 Jan 2018 22:48:09 +0000 (22:48 +0000)]
Fix nodiscard failure tests on compilers w/o -verify.

Previously .fail.cpp tests for nodiscard were run with -Wunused-result
being a warning, not an error, when the compiler didn't support -verify.

When -verify isn't enabled this change judiciously adds -Werror=unused-result
when to only the failure tests containing the // expected-error string for nodiscard.

As a drive-by change, this patch also adds a missing // UNSUPPORTED: c++2a to
a test which was only supposed to run in C++ <= 11.

llvm-svn: 322776

6 years ago[analyzer] NFC: Forbid array elements of void type.
Artem Dergachev [Wed, 17 Jan 2018 22:40:36 +0000 (22:40 +0000)]
[analyzer] NFC: Forbid array elements of void type.

Represent the symbolic value for results of pointer arithmetic on void pointers
in a different way: instead of making void-typed element regions, make
char-typed element regions.

Add an assertion that ensures that no void-typed regions are ever constructed.

This is a refactoring of internals that should not immediately affect
the analyzer's (default) behavior.

Differential Revision: https://reviews.llvm.org/D40939

llvm-svn: 322775

6 years ago[analyzer] operator new: Use the correct region for the constructor.
Artem Dergachev [Wed, 17 Jan 2018 22:34:23 +0000 (22:34 +0000)]
[analyzer] operator new: Use the correct region for the constructor.

The -analyzer-config c++-allocator-inlining experimental option allows the
analyzer to reason about C++ operator new() similarly to how it reasons about
regular functions. In this mode, operator new() is correctly called before the
construction of an object, with the help of a special CFG element.

However, the subsequent construction of the object was still not performed into
the region of memory returned by operator new(). The patch fixes it.

Passing the value from operator new() to the constructor and then to the
new-expression itself was tricky because operator new() has no call site of its
own in the AST. The new expression itself is not a good call site because it
has an incorrect type (operator new() returns 'void *', while the new expression
is a pointer to the allocated object type). Additionally, lifetime of the new
expression in the environment makes it unsuitable for passing the value.
For that reason, an additional program state trait is introduced to keep track
of the return value.

Finally this patch relaxes restrictions on the memory region class that are
required for inlining the constructor. This change affects the old mode as well
(c++-allocator-inlining=false) and seems safe because these restrictions were
an overkill compared to the actual problems observed.

Differential Revision: https://reviews.llvm.org/D40560
rdar://problem/12180598

llvm-svn: 322774

6 years agoAdd a TargetOption to enable/disable GlobalISel
Volkan Keles [Wed, 17 Jan 2018 22:34:21 +0000 (22:34 +0000)]
Add a TargetOption to enable/disable GlobalISel

Summary:
This patch adds a new target option in order to control GlobalISel.
This will allow the users to enable/disable GlobalISel prior to the
backend by calling `TargetMachine::setGlobalISel(bool Enable)`.

No test case as there is already a test to check GlobalISel
command line options.
See: CodeGen/AArch64/GlobalISel/gisel-commandline-option.ll.

Reviewers: qcolombet, aemerson, ab, dsanders

Reviewed By: qcolombet

Subscribers: rovka, javed.absar, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D42137

llvm-svn: 322773

6 years agoAdd support for emitting libcalls for x86_fp80 -> fp128 and vice-versa
Benjamin Kramer [Wed, 17 Jan 2018 22:29:16 +0000 (22:29 +0000)]
Add support for emitting libcalls for x86_fp80 -> fp128 and vice-versa

compiler_rt doesn't provide them (yet), but libgcc does. PR34076.

llvm-svn: 322772

6 years agoAdd a ProfileCount class to represent entry counts.
Easwaran Raman [Wed, 17 Jan 2018 22:24:23 +0000 (22:24 +0000)]
Add a ProfileCount class to represent entry counts.

Summary:
The class wraps a uint64_t and an enum to represent the type of profile
count (real and synthetic) with some helper methods.

Reviewers: davidxl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D41883

llvm-svn: 322771

6 years ago[X86][MMX] Add PR35982 test cases
Simon Pilgrim [Wed, 17 Jan 2018 22:19:31 +0000 (22:19 +0000)]
[X86][MMX] Add PR35982 test cases

FEMMS has the same problem as EMMS

llvm-svn: 322770

6 years ago[RISCV] Propagate -mabi and -march values to GNU assembler.
Ana Pazos [Wed, 17 Jan 2018 22:09:58 +0000 (22:09 +0000)]
[RISCV] Propagate -mabi and -march values to GNU assembler.

When using -fno-integrated-as flag, the gnu assembler produces code
with some default march/mabi which later causes linker failure due
to incompatible mabi/march.

In this patch we explicitly propagate -mabi and -march flags to the
GNU assembler.

In this patch we explicitly propagate -mabi and -march flags to the GNU assembler.

Differential Revision: https://reviews.llvm.org/D41271

llvm-svn: 322769

6 years agoFix standalone test-suite run.
Eric Fiselier [Wed, 17 Jan 2018 22:07:09 +0000 (22:07 +0000)]
Fix standalone test-suite run.

This patch updates libc++abi's HandleOutOfTreeLLVM.cmake to match
libc++'s -- and more importantly, to fix a bug where llvm-lit wasn't
found/created when libc++abi was built out-of-tree. This prevented
the test suite from running.

llvm-svn: 322768

6 years ago[LegalizeDAG] Fix ATOMIC_CMP_SWAP_WITH_SUCCESS legalization.
Eli Friedman [Wed, 17 Jan 2018 22:04:36 +0000 (22:04 +0000)]
[LegalizeDAG] Fix ATOMIC_CMP_SWAP_WITH_SUCCESS legalization.

The code wasn't zero-extending correctly, so the comparison could
spuriously fail.

Adds some AArch64 tests to cover this case.

Inspired by D41791.

Differential Revision: https://reviews.llvm.org/D41798

llvm-svn: 322767

6 years ago[polly] [ScopInfo] Don't use isl_val_get_num_si.
Eli Friedman [Wed, 17 Jan 2018 21:59:02 +0000 (21:59 +0000)]
[polly] [ScopInfo] Don't use isl_val_get_num_si.

isl_val_get_num_si crashes on overflow, so don't use it on arbitrary
integers.

Testcase only crashes on platforms where long is 32 bits because of the
signature of isl_val_get_num_si; not sure if it's possible to write a
testcase which crashes if long is 64 bits.

There are a few other places in polly which use isl_val_get_num_si;
they probably need to be fixed as well. I don't think polly uses any
of the other "long" isl APIs in an unsafe manner.

Differential Revision: https://reviews.llvm.org/D42129

llvm-svn: 322766

6 years ago[SCEV] Fix typo. NFC.
Javed Absar [Wed, 17 Jan 2018 21:58:35 +0000 (21:58 +0000)]
[SCEV] Fix typo. NFC.

Fix confusing typo in comment.

llvm-svn: 322765

6 years ago[scudo] Limit by default the TSD pool to 2 on Android
Kostya Kortchinsky [Wed, 17 Jan 2018 21:54:48 +0000 (21:54 +0000)]
[scudo] Limit by default the TSD pool to 2 on Android

Summary:
jemalloc on Android currently uses 2 arenas
(https://android.googlesource.com/platform/external/jemalloc/+/master/Android.bp#64).
Since the Android toolchain absorbs compiler-rt and compiles it as is, we have
to enforce the same limit to somehow stay competitive in terms of memory usage.

The changes could either go in:
- `scudo_platform.h` with a default for Android of 2 (this is the solution
  implemented here);
- in `CMakeLists.txt` adding -DSCUDO_SHARED_TSD_POOL_SIZE=2 for Android.
- something else?

I don't have a strong opinion on how to do it, but it has to be done upstream
anyway.

Reviewers: alekseyshl, eugenis

Reviewed By: alekseyshl, eugenis

Subscribers: srhines, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D42194

llvm-svn: 322764

6 years agorootn: Port from amd_builtins
Jan Vesely [Wed, 17 Jan 2018 21:22:14 +0000 (21:22 +0000)]
rootn: Port from amd_builtins

Passes piglit on turks and carrizo
fp64 passes ctx on carrizo

v2: fix formatting
    check fp32 denormal support at runtime

Reviewer: Jeroen Ketema <j.ketema@xs4all.nl>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 322763

6 years agopowr: Port from amd_builtins
Jan Vesely [Wed, 17 Jan 2018 21:22:06 +0000 (21:22 +0000)]
powr: Port from amd_builtins

Passes piglit on turks and carrizo
fp64 passes cts on carrizo

v2: fix formatting
    check fp32 denormal support at runtime

Reviewer: Jeroen Ketema <j.ketema@xs4all.nl>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 322762

6 years agopown: Port from amd_builtins
Jan Vesely [Wed, 17 Jan 2018 21:22:03 +0000 (21:22 +0000)]
pown: Port from amd_builtins

Passes piglit on turks and carrizo
fp64 passes CTS on carrizo

v2: fix formatting
    check fp32 denormal support at runtime

Reviewer: Jeroen Ketema <j.ketema@xs4all.nl>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 322761

6 years agopow: Port from amd_builtins
Jan Vesely [Wed, 17 Jan 2018 21:21:35 +0000 (21:21 +0000)]
pow: Port from amd_builtins

Passes piglit on turks and carrizo
fp64 passes CTS on carrizo

v2: fix formatting
    check fp32 denormal support at runtime

Reviewer: Jeroen Ketema <j.ketema@xs4all.nl>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 322760

6 years ago[clang-tidy] Adding Fuchsia checker for trailing returns
Julie Hockett [Wed, 17 Jan 2018 21:18:15 +0000 (21:18 +0000)]
[clang-tidy] Adding Fuchsia checker for trailing returns

Adds a check to the Fuchsia module to warn if a function has a trailing
return.

See https://fuchsia.googlesource.com/zircon/+/master/docs/cxx.md for
reference.

Differential Revision: https://reviews.llvm.org/D42116

llvm-svn: 322759

6 years agoA third attempt to mark TestRdar12408181.py as skipped
Vedant Kumar [Wed, 17 Jan 2018 20:54:39 +0000 (20:54 +0000)]
A third attempt to mark TestRdar12408181.py as skipped

Due to an unfortunate difference between the open source test harness
and our internal harness, applying two @skip... decorators to this test
works in the internal build but not in the open source build.

I've tried another approach to skipping this test and tested it out with
the open source harness. Hopefully this sticks!

rdar://36417163

llvm-svn: 322756

6 years agoReland "[libFuzzer] Support using libc++"
Petr Hosek [Wed, 17 Jan 2018 20:39:14 +0000 (20:39 +0000)]
Reland "[libFuzzer] Support using libc++"

This is needed in case the users of libFuzzer use libc++ in their
code, which the fuzz target (libFuzzer) will be linked against.
When libc++ source is available, we build a private version of it
and link it against libFuzzer which allows using the same static
library against codebases which use both libc++ and libstdc++.

Differential Revision: https://reviews.llvm.org/D37631

llvm-svn: 322755

6 years ago[globalisel][tablegen] Honour priority order within nested instructions.
Daniel Sanders [Wed, 17 Jan 2018 20:34:29 +0000 (20:34 +0000)]
[globalisel][tablegen] Honour priority order within nested instructions.

It appears that we haven't been prioritizing rules that contain nested
instructions properly. InstructionOperandMatcher didn't override
isHigherPriorityThan so it never compared the instructions/operands/predicates
inside nested instructions.

Fixes PR35926. Thanks to Diana Picus for the bug report.

llvm-svn: 322754

6 years ago[analyzer] introduce getSVal(Stmt *) helper on ExplodedNode, make sure the helper...
George Karpenkov [Wed, 17 Jan 2018 20:27:29 +0000 (20:27 +0000)]
[analyzer] introduce getSVal(Stmt *) helper on ExplodedNode, make sure the helper is used consistently

In most cases using
`N->getState()->getSVal(E, N->getLocationContext())`
is ugly, verbose, and also opens up more surface area for bugs if an
inconsistent location context is used.

This patch introduces a helper on an exploded node, and ensures
consistent usage of either `ExplodedNode::getSVal` or
`CheckContext::getSVal` across the codebase.
As a result, a large number of redundant lines is removed.

Differential Revision: https://reviews.llvm.org/D42155

llvm-svn: 322753

6 years ago[analyzer] Make isSubRegionOf reflexive
George Karpenkov [Wed, 17 Jan 2018 20:27:26 +0000 (20:27 +0000)]
[analyzer] Make isSubRegionOf reflexive

All usages of isSubRegionOf separately check for reflexive case, and in
any case, set theory tells us that each set is a subset of itself.

Differential Revision: https://reviews.llvm.org/D42140

llvm-svn: 322752

6 years ago[WebAssembly] Simplify generation of "names" section
Sam Clegg [Wed, 17 Jan 2018 20:19:04 +0000 (20:19 +0000)]
[WebAssembly] Simplify generation of "names" section

Simplify generation of "names" section by simply iterating
over the DefinedFunctions array.

This even fixes some bugs, judging by the test changes required.
Some tests are asserting that functions are named multiple times,
other tests are asserting that the "names" section contains the
function's alias rather than its original name

Patch by Nicholas Wilson!

Differential Revision: https://reviews.llvm.org/D42076

llvm-svn: 322751

6 years ago[analyzer] Better UI in html reports for displaying shortcuts help
George Karpenkov [Wed, 17 Jan 2018 20:06:26 +0000 (20:06 +0000)]
[analyzer] Better UI in html reports for displaying shortcuts help

Make the help window accessible, but don't show by default.
Use a different CSS class from macro.

llvm-svn: 322750

6 years ago[clang-format] Replace unordered_set with an array
Krasimir Georgiev [Wed, 17 Jan 2018 20:01:02 +0000 (20:01 +0000)]
[clang-format] Replace unordered_set with an array

Summary: This replaces an unordered_set from r322690 with an array and binary search.

Reviewers: bkramer, benhamilton

Reviewed By: bkramer, benhamilton

Subscribers: jolesiak, benhamilton, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42189

llvm-svn: 322749

6 years agoRevert [PowerPC] This reverts commit rL322721
Zaara Syeda [Wed, 17 Jan 2018 20:00:15 +0000 (20:00 +0000)]
Revert [PowerPC] This reverts commit rL322721

Failing build bots. Revert the commit now.

llvm-svn: 322748

6 years ago[MDA] Use common code instead of reimplementing same. [NFC]
Philip Reames [Wed, 17 Jan 2018 19:57:19 +0000 (19:57 +0000)]
[MDA] Use common code instead of reimplementing same. [NFC]

llvm-svn: 322747

6 years ago[ASTMatchers] Add isNoReturn() match narrower for FunctionDeclarations
Roman Lebedev [Wed, 17 Jan 2018 19:40:55 +0000 (19:40 +0000)]
[ASTMatchers] Add isNoReturn() match narrower for FunctionDeclarations

Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: dblaikie, klimek, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D41455

llvm-svn: 322746

6 years ago[WebAssembly] Remove DEBUG_FUNCTION_NAME after llvm change
Sam Clegg [Wed, 17 Jan 2018 19:35:16 +0000 (19:35 +0000)]
[WebAssembly] Remove DEBUG_FUNCTION_NAME after llvm change

Patch by Nicholas Wilson!

Differential Revision: https://reviews.llvm.org/D42193

llvm-svn: 322745

6 years agolibcxx: Disable CFI in function std::get_temporary_buffer.
Peter Collingbourne [Wed, 17 Jan 2018 19:32:35 +0000 (19:32 +0000)]
libcxx: Disable CFI in function std::get_temporary_buffer.

The specification of this function mandates a cast to uninitialized
T*, which is forbidden under CFI.

Differential Revision: https://reviews.llvm.org/D42146

llvm-svn: 322744

6 years ago[GISel] Make constrainSelectedInstRegOperands() available to the legalizer. NFC
Aditya Nandakumar [Wed, 17 Jan 2018 19:31:33 +0000 (19:31 +0000)]
[GISel] Make constrainSelectedInstRegOperands() available to the legalizer. NFC

https://reviews.llvm.org/D42149

llvm-svn: 322743

6 years ago[DeclPrinter] Fix two cases that crash clang -ast-print.
Artem Belevich [Wed, 17 Jan 2018 19:29:39 +0000 (19:29 +0000)]
[DeclPrinter] Fix two cases that crash clang -ast-print.

Both are related to handling anonymous structures.
* clang didn't handle () around an anonymous struct variable.
* clang also crashed on syntax errors that could lead to other
  syntactic constructs following the declaration of an
  anonymous struct. While the code is invalid, that's not
  a good reason to panic compiler.

Differential Revision: https://reviews.llvm.org/D41788

llvm-svn: 322742

6 years ago[WebAssembly] Remove debug names from symbol table
Sam Clegg [Wed, 17 Jan 2018 19:28:43 +0000 (19:28 +0000)]
[WebAssembly] Remove debug names from symbol table

Get rid of DEBUG_FUNCTION_NAME symbols. When we actually debug
data, maybe we'll want somewhere to put it... but having a symbol
that just stores the name of another symbol seems odd.
It means you have multiple Symbols with the same name, one
containing the actual function and another containing the name!

Store the names in a vector on the WasmObjectFile when reading
them in. Also stash them on the WasmFunctions themselves.
The names are //not// "symbol names" or aliases or anything,
they're just the name that a debugger should show against the
function body itself. NB. The WasmObjectFile stores them so that
they can be exported in the YAML losslessly, and hence the tests
can be precise.

Enforce that the CODE section has been read in before reading
the "names" section. Requires minor adjustment to some tests.

Patch by Nicholas Wilson!

Differential Revision: https://reviews.llvm.org/D42075

llvm-svn: 322741

6 years agoTry again to mark TestRdar12408181.py as skipped
Vedant Kumar [Wed, 17 Jan 2018 19:25:12 +0000 (19:25 +0000)]
Try again to mark TestRdar12408181.py as skipped

rdar://36417163

llvm-svn: 322740

6 years agoUse a got to access a hidden weak undefined on MachO.
Rafael Espindola [Wed, 17 Jan 2018 19:19:55 +0000 (19:19 +0000)]
Use a got to access a hidden weak undefined on MachO.

Trying to link

__attribute__((weak, visibility("hidden"))) extern int foo;
int *main(void) {
  return &foo;
}

on OS X fails with

ld: 32-bit RIP relative reference out of range (-4294971318 max is +/-2GB): from _main (0x100000FAB) to _foo@0x00001000 (0x00000000) in '_main' from test.o for architecture x86_64

The problem being that 0 cannot be computed as a fixed difference from
%rip. Exactly the same issue exists on ELF and we can use the same
solution.

llvm-svn: 322739

6 years ago[ARM] Optimize {s,u}mul.with.overflow.
Joel Galenson [Wed, 17 Jan 2018 19:19:05 +0000 (19:19 +0000)]
[ARM] Optimize {s,u}mul.with.overflow.

This extends my previous patches to also optimize overflow-checked multiplies during SelectionDAG.

Differential revision: https://reviews.llvm.org/D40922

llvm-svn: 322738

6 years ago[ARM] Optimize {s,u}{add,sub}.with.overflow.
Joel Galenson [Wed, 17 Jan 2018 19:19:05 +0000 (19:19 +0000)]
[ARM] Optimize {s,u}{add,sub}.with.overflow.

The ARM backend contains code that tries to optimize compares by replacing them with an existing instruction that sets the flags the same way. This allows it to replace a "cmp" with a "adds", generalizing the code that replaces "cmp" with "sub". It also heuristically disables sinking of instructions that could potentially be used to replace compares (currently only if they're next to each other).

Differential revision: https://reviews.llvm.org/D38378

llvm-svn: 322737

6 years ago[coff] Print detailed timing information with /TIME.
Zachary Turner [Wed, 17 Jan 2018 19:16:26 +0000 (19:16 +0000)]
[coff] Print detailed timing information with /TIME.

The classes used to print and update time information are in
common, so other linkers could use this as well if desired.

Differential Revision: https://reviews.llvm.org/D41915

llvm-svn: 322736

6 years ago[Attributes] Fix crash when attempting to remove alignment from an attribute list/set
Daniel Neilson [Wed, 17 Jan 2018 19:15:21 +0000 (19:15 +0000)]
[Attributes] Fix crash when attempting to remove alignment from an attribute list/set

Summary:
 Discovered while working on a patch to move alignment in
@llvm.memcpy/move/set from an arg into parameter attributes.

 The current implementations of AttributeSet::removeAttribute() and
AttributeList::removeAttribute crash when attempting to remove the
alignment attribute. Currently, these implementations add the
to-be-removed attributes to an AttrBuilder and then remove
the builder from the list/set. Alignment is special in that it
must be added to a builder with an integer value for the alignment;
attempts to add alignment to a builder without a value is an error.

 This change fixes the removeAttribute implementations for AttributeSet and
AttributeList to make them able to remove the alignment, and other similar,
attributes.

Reviewers: rnk, chandlerc, pete, javed.absar, reames

Reviewed By: rnk

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D41951

llvm-svn: 322735

6 years ago[X86][BTVER2] Reduce instregex usage (PR35955)
Simon Pilgrim [Wed, 17 Jan 2018 19:12:48 +0000 (19:12 +0000)]
[X86][BTVER2] Reduce instregex usage (PR35955)

Most are just replaced with instrs lists, but a few regexps have been further generalized to match more instructions with a single pattern.

llvm-svn: 322734

6 years ago[InstCombine] add baseline tests for D39958; NFC
Sanjay Patel [Wed, 17 Jan 2018 19:04:18 +0000 (19:04 +0000)]
[InstCombine] add baseline tests for D39958; NFC

llvm-svn: 322733

6 years ago[WebAssembly] Remove non-existent method declaration. NFC.
Sam Clegg [Wed, 17 Jan 2018 19:01:52 +0000 (19:01 +0000)]
[WebAssembly] Remove non-existent method declaration. NFC.

Patch by Nicholas Wilson!

llvm-svn: 322732

6 years ago[WebAssembly] Remove unused member variable. NFC.
Sam Clegg [Wed, 17 Jan 2018 18:58:50 +0000 (18:58 +0000)]
[WebAssembly] Remove unused member variable. NFC.

Patch by Nicholas Wilson!

llvm-svn: 322731

6 years ago[X86] Teach LowerBUILD_VECTOR to recognize pair-wise splats of 32-bit elements and...
Craig Topper [Wed, 17 Jan 2018 18:58:22 +0000 (18:58 +0000)]
[X86] Teach LowerBUILD_VECTOR to recognize pair-wise splats of 32-bit elements and use a 64-bit broadcast

If we are splatting pairs of 32-bit elements, we can use a 64-bit broadcast to get the job done.

We could probably could probably do this with other sizes too, for example four 16-bit elements. Or we could broadcast pairs of 16-bit elements using a 32-bit element broadcast. But I've left that as a future improvement.

I've also restricted this to AVX2 only because we can only broadcast loads under AVX.

Differential Revision: https://reviews.llvm.org/D42086

llvm-svn: 322730

6 years ago[Parse] Forward brace locations to TypeConstructExpr
Vedant Kumar [Wed, 17 Jan 2018 18:53:51 +0000 (18:53 +0000)]
[Parse] Forward brace locations to TypeConstructExpr

When parsing C++ type construction expressions with list initialization,
forward the locations of the braces to Sema.

Without these locations, the code coverage pass crashes on the given test
case, because the pass relies on getLocEnd() returning a valid location.

Here is what this patch does in more detail:

  - Forwards init-list brace locations to Sema (ParseExprCXX),
  - Builds an InitializationKind with these locations (SemaExprCXX), and
  - Uses these locations for constructor initialization (SemaInit).

The remaining changes fall out of introducing a new overload for
creating direct-list InitializationKinds.

Testing: check-clang, and a stage2 coverage-enabled build of clang with
asserts enabled.

Differential Revision: https://reviews.llvm.org/D41921

llvm-svn: 322729

6 years agoSkip a flaky test (TestRdar12408181.py)
Vedant Kumar [Wed, 17 Jan 2018 18:53:42 +0000 (18:53 +0000)]
Skip a flaky test (TestRdar12408181.py)

This test frequently times out on our bots. While we're investigating
the issue, mark the test as skipped so the builds aren't impacted as
much.

rdar://36417163

llvm-svn: 322728

6 years ago[WebAssembly] Fix typo in comment
Sam Clegg [Wed, 17 Jan 2018 18:50:30 +0000 (18:50 +0000)]
[WebAssembly] Fix typo in comment

Patch by Nicholas Wilson!

llvm-svn: 322727

6 years ago[WebAssembly] Refactor InputChunk.getSize(). NFC
Sam Clegg [Wed, 17 Jan 2018 18:49:11 +0000 (18:49 +0000)]
[WebAssembly] Refactor InputChunk.getSize(). NFC

Also, remove trailing semicolons.

Patch by Nicholas Wilson!

llvm-svn: 322726

6 years ago[utils] Make .cfi_startproc optional for powerpc
Fangrui Song [Wed, 17 Jan 2018 18:48:50 +0000 (18:48 +0000)]
[utils] Make .cfi_startproc optional for powerpc

Summary: llc sometimes may not emit .cfi_startproc which makes func_dict to have less entries.

Subscribers: nemanjai, llvm-commits

Differential Revision: https://reviews.llvm.org/D42144

llvm-svn: 322725

6 years ago[X86] When legalizing (v64i1 select i8, v64i1, v64i1) make sure not to introduce...
Craig Topper [Wed, 17 Jan 2018 18:46:01 +0000 (18:46 +0000)]
[X86] When legalizing (v64i1 select i8, v64i1, v64i1) make sure not to introduce bitcasts to i64 in 32-bit mode

We legalize selects of masks with scalar conditions using a bitcast to an integer type. But if we are in 32-bit mode we can't convert v64i1 to i64. So instead split the v64i1 to v32i1 and concat it back together. Each half will then be legalized by bitcasting to i32 which is fine.

The test case is a little indirect. If we have the v64i1 select in IR it will get legalized by legalize vector ops which has a run of type legalization after it. That type legalization run is able to fix this i64 bitcast. So in order to avoid that we need a build_vector of a splat which legalize vector ops will ignore. Legalize DAG will then turn that into a select via LowerBUILD_VECTORvXi1. And the select will get legalized. In this case there is no type legalizer run to cleanup the bitcast.

This fixes pr35972.

llvm-svn: 322724

6 years ago[X86][SSE] Add v4i16 PMULLD tests
Simon Pilgrim [Wed, 17 Jan 2018 18:41:27 +0000 (18:41 +0000)]
[X86][SSE] Add v4i16 PMULLD tests

llvm-svn: 322723

6 years ago[clangd] Deduplicate symbols collected in global-symbol-builder tool.
Eric Liu [Wed, 17 Jan 2018 18:27:41 +0000 (18:27 +0000)]
[clangd] Deduplicate symbols collected in global-symbol-builder tool.

Summary: After D42111, the executor framework no longer deduplicate tool results.

Reviewers: bkramer, sammccall

Subscribers: klimek, ilya-biryukov, cfe-commits

Differential Revision: https://reviews.llvm.org/D42113

llvm-svn: 322722

6 years ago[PowerPC] Add handling for ColdCC calling convention and a pass to mark
Zaara Syeda [Wed, 17 Jan 2018 18:22:55 +0000 (18:22 +0000)]
[PowerPC] Add handling for ColdCC calling convention and a pass to mark
candidates with coldcc attribute.

This patch adds support for the coldcc calling convention for Power.
This changes the set of non-volatile registers. It includes a pass to stress
test the implementation by marking all static directly called functions with
the coldcc attribute through the option -enable-coldcc-stress-test. It also
includes an option, -ppc-enable-coldcc, to add the coldcc attribute to
functions which are cold at all call sites based on BlockFrequencyInfo when
the containing function does not call any non cold functions.

Differential Revision: https://reviews.llvm.org/D38413

llvm-svn: 322721

6 years ago[Index] Fix GCC warning again :-(
Sam McCall [Wed, 17 Jan 2018 18:20:57 +0000 (18:20 +0000)]
[Index] Fix GCC warning again :-(

llvm-svn: 322720

6 years agoFix MSVC "not all control paths return a value" warning.
Simon Pilgrim [Wed, 17 Jan 2018 18:16:28 +0000 (18:16 +0000)]
Fix MSVC "not all control paths return a value" warning.

llvm-svn: 322719

6 years ago[ARC] Add missing condition codes.
Tatyana Krasnukha [Wed, 17 Jan 2018 17:58:28 +0000 (17:58 +0000)]
[ARC] Add missing condition codes.

Summary: Added VS and VC, required for disassembling.

Reviewers: petecoup

Reviewed By: petecoup

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42172

llvm-svn: 322718

6 years ago[clang-tidy] Fixing Fuchsia overloaded operator warning message
Julie Hockett [Wed, 17 Jan 2018 17:41:50 +0000 (17:41 +0000)]
[clang-tidy] Fixing Fuchsia overloaded operator warning message

Updating Fuchsia overloaded operator warning message for clarity.

Differential Revision: https://reviews.llvm.org/D42120

llvm-svn: 322692

6 years ago[Tooling] Don't deduplicate tool results in the All-TUs executor.
Eric Liu [Wed, 17 Jan 2018 17:37:11 +0000 (17:37 +0000)]
[Tooling] Don't deduplicate tool results in the All-TUs executor.

Summary:
As result deduplication or reduction is not supported in the framework,
we should leave the deplication to tools (if needed) until the framework supports it.

Reviewers: bkramer

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42111

llvm-svn: 322691

6 years ago[Format] Improve ObjC header guessing heuristic
Ben Hamilton [Wed, 17 Jan 2018 17:33:08 +0000 (17:33 +0000)]
[Format] Improve ObjC header guessing heuristic

Summary:
This improves upon the previous Objective-C header guessing heuristic
from rC320479.

Now, we run the lexer on C++ header files and look for Objective-C
keywords and syntax. We also look for Foundation types.

Test Plan: make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: jolesiak, krasimir

Reviewed By: jolesiak

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42135

llvm-svn: 322690

6 years agoRevert "[libFuzzer] Support using libc++"
Petr Hosek [Wed, 17 Jan 2018 17:24:56 +0000 (17:24 +0000)]
Revert "[libFuzzer] Support using libc++"

This reverts commit r322604: test is failing for standalone compiler-rt.

llvm-svn: 322689

6 years ago[SystemZ] Handle BRCTH branches correctly in SystemZLongBranch.cpp.
Jonas Paulsson [Wed, 17 Jan 2018 17:16:07 +0000 (17:16 +0000)]
[SystemZ]  Handle BRCTH branches correctly in SystemZLongBranch.cpp.

BRCTH is capable of a long branch which needs to be recognized during branch
relaxation. This is done by checking for ExtraRelaxSize == 0.

Review: Ulrich Weigand
llvm-svn: 322688

6 years agoUpdate dump_ast_matchers for many recent changes.
Benjamin Kramer [Wed, 17 Jan 2018 16:50:14 +0000 (16:50 +0000)]
Update dump_ast_matchers for many recent changes.

The html file hasn't been updated in a long time so there are quite a
few changes in there. No matchers were removed though.

llvm-svn: 322687