Justin Lebar [Tue, 7 Nov 2017 22:10:54 +0000 (22:10 +0000)]
[NVPTX] Implement __nvvm_atom_add_gen_d builtin.
Summary:
This just seems to have been an oversight. We already supported the f64
atomic add with an explicit scope (e.g. "cta"), but not the scopeless
version.
George Rokos [Tue, 7 Nov 2017 18:27:04 +0000 (18:27 +0000)]
Clang/libomptarget map interface flag renaming - NFC patch
This patch renames some of the flag names of the clang/libomptarget map interface. The old names are slightly misleading, whereas the new ones describe in a better way what each flag is about.
Only the macros within the enumeration are renamed, there is no change in functionality therefore there are no updated regression tests.
Devin Coughlin [Mon, 6 Nov 2017 22:12:19 +0000 (22:12 +0000)]
[analyzer] Model correct dispatch_once() 'done' value in BodyFarm
The analyzer's BodyFarm models dispatch_once() by comparing the passed-in
predicate against a known 'done' value. If the predicate does not have that
value, the model updates the predicate to have that value and executes the
passed in block.
Unfortunately, the current model uses the wrong 'done' value: 1 instead of ~0.
This interferes with libdispatch's static inline function _dispatch_once(),
which enables a fast path if the block has already been executed. That function
uses __builtin_assume() to tell the compiler that the done flag is set to ~0 on
exit. When r302880 added modeling of __builtin_assume(), this caused the
analyzer to assume 1 == ~0. This in turn caused the analyzer to never explore any code after a call to dispatch_once().
This patch regains the missing coverage by updating BodyFarm to use the correct
'done' value.
Dave Lee [Mon, 6 Nov 2017 21:18:05 +0000 (21:18 +0000)]
Vary Windows toolchain selection by -fuse-ld
Summary:
This change allows binutils to be used for linking with MSVC. Currently, when
using an MSVC target and `-fuse-ld=bfd`, the driver produces an invalid linker
invocation.
Craig Topper [Mon, 6 Nov 2017 21:00:49 +0000 (21:00 +0000)]
[X86] Replace the mask cmpeq/cmple/cmplt/cmpgt/cmpge/cmpneq intrinsics with macros that just pass the right comparison predicate value to the regular cmp intrinsic. Remove mask cmpeq/cmpgt builtins that are now unused.
This shortens the intrinsic headers a little and allows us to get rid of the cmpeq and cmpgt handling from CGBuiltin.cpp.
Martell Malone [Sat, 4 Nov 2017 02:07:59 +0000 (02:07 +0000)]
[Driver] MinGW: Remove custom linker detection
This is a re-apply of rL313082 which was reverted in rL313088
In rL289668 the ability to specify the default linker at compile time
was added but because the MinGW driver used custom detection we could
not take advantage of this new CMAKE flag CLANG_DEFAULT_LINKER.
rL289668 added no test cases and the mingw driver was either overlooked
or purposefully skipped because it has some custom linker tests
Removing them here because they are covered by the generic case.
Richard Trieu [Sat, 4 Nov 2017 01:20:50 +0000 (01:20 +0000)]
Update ODR hashing tests
Add a mix of postive and negative tests to check that wrong Decls won't be
flagged in the diagnostic. Split the check everything test and moved the
pieces closer to where the related tests are.
Alex Lorenz [Fri, 3 Nov 2017 18:11:22 +0000 (18:11 +0000)]
[refactor][extract] insert semicolons into extracted/inserted code
when needed
This commit implements the semicolon insertion logic into the extract
refactoring. The following rules are used:
- extracting expression: add terminating ';' to the extracted function.
- extracting statements that don't require terminating ';' (e.g. switch): add
terminating ';' to the callee.
- extracting statements with ';': move (if possible) the original ';' from the
callee and add terminating ';'.
- otherwise, add ';' to both places.
[Driver] Add Scudo as a possible -fsanitize= option
Summary:
This change adds Scudo as a possible Sanitizer option via -fsanitize=.
This allows for easier static & shared linking of the Scudo library, it allows
us to enforce PIE (otherwise the security of the allocator is moot), and check
for incompatible Sanitizers combo.
In its current form, Scudo is not compatible with any other Sanitizer, but the
plan is to make it work in conjunction with UBsan (-fsanitize=scudo,undefined),
which will require additional work outside of the scope of this change.
[clang-format] Sort using-declarations case sensitively with a special case for '_'
Summary:
This makes clang-format sort using declarations case-sensitive with the
exception that '_' comes just before 'A'. This is better than the current case
insensitive version, because it groups uppercase names in the same namespace
together.
Erik Verbruggen [Fri, 3 Nov 2017 09:40:07 +0000 (09:40 +0000)]
[preamble] Also record the "skipping" state of the preprocessor
When a preamble ends in a conditional preprocessor block that is being
skipped, the preprocessor needs to continue skipping that block when
the preamble is used.
Justin Lebar [Fri, 3 Nov 2017 02:30:00 +0000 (02:30 +0000)]
[CUDA] Mark CUDA as a no-errno platform.
Summary:
CUDA doesn't support errno at all, so this is the right thing -- or at
least, in the right direction.
But also, this unbreaks the CUDA test-suite math tests [0] after D39481.
__cuda_cmath.h forwards nexttoward() to __builtin_nexttoward, which,
after that patch, was lowering to a libcall that doesn't exist in NVPTX.
David Blaikie [Thu, 2 Nov 2017 22:28:50 +0000 (22:28 +0000)]
Modular Codegen: Don't home always_inline functions
Since they'll likely (not always - if the address is taken, etc) be
inlined away, even at -O0, separately provided weak definitions are
likely to be unused so skip all of that.
David Blaikie [Thu, 2 Nov 2017 21:55:40 +0000 (21:55 +0000)]
Modular Codegen: Don't home/modularize static functions in headers
Consistent with various workarounds in the backwards compatible modules
that allow static functions in headers to exist, be deduplicated to some
degree, and not generally fail right out of the gate... do the same with
modular codegen as there are enough cases (including in libstdc++ and in
LLVM itself - though I cleaned up the easy ones) that it's worth
supporting as a migration/backcompat step.
Simply create a separate, internal linkage function in each object that
needs it. If an available_externally/modularized function references a
static function, but the modularized function is eventually dropped and
not inlined, the static function will be dropped as unreferenced.
Sanjay Patel [Thu, 2 Nov 2017 20:39:26 +0000 (20:39 +0000)]
[CodeGen] fix const-ness of builtin equivalents of <math.h> and <complex.h> functions that might set errno
This just makes const-ness of the builtins match const-ness of their lib function siblings.
We're deferring fixing some of these that are obviously wrong to follow-up patches.
Hopefully, the bugs are visible in the new test file (added at rL317220).
As the description in Builtins.def says: "e = const, but only when -fmath-errno=0".
This is step 2 of N to fix builtins and math calls as discussed in D39204.
Eric Liu [Thu, 2 Nov 2017 12:48:48 +0000 (12:48 +0000)]
Fix clang-format CLion integration bug.
CLion's Sax parser threw this error:
Failed to parse clang-format XML replacements. Input: <?xml version='1.0'?>
<replacements xml:space='preserve' incomplete_format='true' line=89>
[...]
[org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 66; Open quote is expected for attribute "line" associated with an element type "replacements".]
Shoaib Meenai [Thu, 2 Nov 2017 05:04:00 +0000 (05:04 +0000)]
[libclang] Add dummy libclang-headers target
`LLVM_DISTRIBUTION_COMPONENTS` assumes that each component has both
`component` and `install-component` targets. Add a dummy no-op target
for `libclang-headers` to placate this check.
Shoaib Meenai [Thu, 2 Nov 2017 01:11:40 +0000 (01:11 +0000)]
[clang-rename] Use add_clang_tool
`add_clang_tool` includes a call to `add_clang_executable`, but it also
sets up the install rule, and adds an `install-*` target. The latter is
required for using `LLVM_DISTRIBUTION_COMPONENTS`.
[clang-format] Make parseUnaryOperator non-recursive, NFCI
Summary:
This patch makes the implementation of parseUnaryOperator non-recursive. We had
a problem with a file starting with tens of thousands of +'es and -'es which
caused clang-format to stack overflow.
Richard Smith [Wed, 1 Nov 2017 01:37:11 +0000 (01:37 +0000)]
[c++17] Refine resolution of constructor / conversion function disambiguation.
Given a choice between a constructor call and a conversion function in C++17,
we prefer the constructor for direct-initialization and the conversion function
for copy-initialization, matching the behavior in C++14 and before. The
guaranteed copy elision rules were not intended to change the meaning of such
code (other than by removing unnecessary copy constructor calls).
Wolfgang Pieb [Tue, 31 Oct 2017 22:49:48 +0000 (22:49 +0000)]
Fix for PR33930. Short-circuit metadata mapping when cloning a varargs thunk.
The cloning happens before all metadata nodes are resolved. Prevent the value
mapper from running into unresolved or temporary MD nodes.
Vlad Tsyrklevich [Tue, 31 Oct 2017 22:39:44 +0000 (22:39 +0000)]
[CFI] Add CFI-icall pointer type generalization
Summary:
This change allows generalizing pointers in type signatures used for
cfi-icall by enabling the -fsanitize-cfi-icall-generalize-pointers flag.
This works by 1) emitting an additional generalized type signature
metadata node for functions and 2) llvm.type.test()ing for the
generalized type for translation units with the flag specified.
This flag is incompatible with -fsanitize-cfi-cross-dso because it would
require emitting twice as many type hashes which would increase artifact
size.
Vitaly Buka [Tue, 31 Oct 2017 20:49:57 +0000 (20:49 +0000)]
[clang-fuzzer] Fix incremental builds of the fuzzer
Summary:
Don't use BUILD_IN_SOURCE keep git checkout clean
Don't forward CMAKE_GENERATOR as ExternalProject_Add should do it already
Reset UPDATE_COMMAND to avoid git checkout updates on each build
Ivan A. Kosarev [Tue, 31 Oct 2017 11:05:34 +0000 (11:05 +0000)]
[CodeGen] Propagate may-alias'ness of lvalues with TBAA info
This patch fixes various places in clang to propagate may-alias
TBAA access descriptors during construction of lvalues, thus
eliminating the need for the LValueBaseInfo::MayAlias flag.
This is part of D38126 reworked to be a separate patch to
simplify review.
Richard Smith [Mon, 30 Oct 2017 22:38:20 +0000 (22:38 +0000)]
[modules] Retain multiple using-directives in the same scope even if they name the same namespace.
They might have different visibility, and thus discarding all but one of them
can result in rejecting valid code. Also fix name lookup to cope with multiple
using-directives being found that denote the same namespace, where some are not
visible -- don't cache an "already visited" state for a using-directive that we
didn't visit because it was hidden.
projects / clang / log