Richard Smith [Tue, 2 Dec 2014 00:08:08 +0000 (00:08 +0000)]
[modules] Track how 'header' directives were written in module map files,
rather than trying to extract this information from the FileEntry after the
fact.
This has a number of beneficial effects. For instance, diagnostic messages for
failed module builds give a path relative to the "module root" rather than an
absolute file path, and the contents of the module includes file is no longer
dependent on what files the including TU happened to inspect prior to
triggering the module build.
Zachary Turner [Mon, 1 Dec 2014 23:06:47 +0000 (23:06 +0000)]
Make -fuse-ld=lld work properly on Windows.
Using lld on Windows requires calling link-lld.exe instead of
lld.exe. This patch puts this knowledge into clang so that when
using the GCC style clang driver, it can properly delegate to
lld.
Reid Kleckner [Mon, 1 Dec 2014 22:02:27 +0000 (22:02 +0000)]
Use nullptr to silence -Wsentinel when self-hosting on Windows
Richard rejected my Sema change to interpret an integer literal zero in
a varargs context as a null pointer, so -Wsentinel sees an integer
literal zero and fires off a warning. Only CodeGen currently knows that
it promotes integer literal zeroes in this context to pointer size on
Windows. I didn't want to teach -Wsentinel about that compatibility
hack. Therefore, I'm migrating to C++11 nullptr.
Nico Weber [Mon, 1 Dec 2014 17:48:04 +0000 (17:48 +0000)]
Add a test for devirtualization of virtual operator calls.
There was no test coverage for this before: Modifiying
EmitCXXOperatorMemberCallee() to not call CanDevirtualizeMemberFunctionCall()
didn't make any test fail.
Make the function pointer a template argument instead of a runtime value.
Summary:
Speed up the variadic matchers by removing one indirect call.
Making the function pointer a template arguments allows the compiler to
inline the call instead of doing an runtime call by pointer.
Also, optimize the allOf() case to avoid redundant kind checks.
This speeds up our clang-tidy benchmark by ~2%
Remove threshold for lifetime marker insertion of named temporaries
Now that TailRecursionElimination has been fixed with r222354, the
threshold on size for lifetime marker insertion can be removed. This
only affects named temporary though, as the patch for unnamed temporaries
is still in progress.
Richard Barton [Fri, 28 Nov 2014 20:39:59 +0000 (20:39 +0000)]
Add additional arguments for -mfpu options
Add neon-vfpv3 to allow specifying both at the same time. This is not an
option that GCC supports, but follows the same track and should be
non-controversial.
Alexey Bataev [Fri, 28 Nov 2014 07:21:40 +0000 (07:21 +0000)]
[OPENMP] Additional processing of 'omp atomic write' directive.
According to OpenMP standard, Section 2.12.6, atomic Construct, '#pragma omp atomic write' is allowed to be used only for expression statements of form 'x = expr;', where x is a lvalue expression and expr is an expression with scalar type. Patch adds checks for it.
Sean Hunt [Fri, 28 Nov 2014 00:53:20 +0000 (00:53 +0000)]
Create a new 'flag_enum' attribute.
This attribute serves as a hint to improve warnings about the ranges of
enumerators used as flag types. It currently has no working C++ implementation
due to different semantics for enums in C++. For more explanation, see the docs
and testcases.
Tim Northover [Thu, 27 Nov 2014 21:02:49 +0000 (21:02 +0000)]
AArch64: simplify PCS mapping.
Now that LLVM can count the registers needed to implement AAPCS rules, we don't
need to duplicate that logic here. This means we can drop the explicit padding
and also use more natural types in many cases (e.g. "struct { float arr[3]; }"
used to end up as "[2 x double]" to avoid holes on the stack.
The one wrinkle is that AAPCS va_arg was also using the register counting
machinery. But the local replacement isn't too bad.
Aaron Ballman [Thu, 27 Nov 2014 15:45:59 +0000 (15:45 +0000)]
Sphinx does not have a lexer for OpenCL, so falling back to C for the language on the code block. Also fixing an indentation warning. NFC to the content of the documentation itself.
[OpenCL] Implemented restrictions for pointer conversions specified in OpenCL v2.0.
OpenCL v2.0 s6.5.5 restricts conversion of pointers to different address spaces:
- the named address spaces (__global, __local, and __private) => __generic - implicitly converted;
- __generic => named - with an explicit cast;
- named <=> named - disallowed;
- __constant <=> any other - disallowed.
[OpenCL] Generic address space has been added in OpenCL v2.0.
To support it in the frontend, the following has been added:
- generic address space type attribute;
- documentation for the OpenCL address space attributes;
- parsing of __generic(generic) keyword;
- test code for the parser and diagnostics.
Richard Smith [Wed, 26 Nov 2014 03:26:53 +0000 (03:26 +0000)]
[c++1z] Most of N4268 (allow constant evaluation for non-type template arguments).
We don't yet support pointer-to-member template arguments that have undergone
pointer-to-member conversions, mostly because we don't have a mangling for them yet.
Change to original: ifndef out tests in Windows due to /-separated
paths.
Summary:
Often one is only interested in matches within the main-file or matches
that are not within a system-header, for which this patch adds
isInMainFile and isInSystemFile. They take no arguments and narrow down
the matches.
The isInFileMatchingName is mainly thought for interactive
clang-query-sessions, to make a matcher more specific without restarting
the session with the files you are interested in for that moment. It
takes a string that will be used as regular-expression to match the
filename of where the matched node is expanded.
Reid Kleckner [Mon, 24 Nov 2014 22:05:42 +0000 (22:05 +0000)]
Remove unnecessary environment switch
All supported environments on x86 Windows return structs in EAX:EDX.
This removes code added in r204978 that had to get updated in r222680.
We should now have the same behavior we had before r204978.
Samuel Benzaquen [Mon, 24 Nov 2014 21:21:09 +0000 (21:21 +0000)]
Filter the toplevel matchers by kind.
Summary:
Filter the toplevel matchers by kind.
Decl and Stmt matchers are tied to a specific node kind and trying to
match incompatible nodes is a waste.
Precalculate a filtered list of matchers that have a chance of matching
the node and ignore the rest.
Speeds up our clang-tidy benchmark by ~10%
Paul Robinson [Mon, 24 Nov 2014 20:51:42 +0000 (20:51 +0000)]
Correctly remove OptimizeForSize from functions marked OptimizeNone.
This allows using __attribute__((optnone)) and the -Os/-Oz options.
Fixes PR21604.
Aaron Ballman [Mon, 24 Nov 2014 15:42:34 +0000 (15:42 +0000)]
Reverting r222638; it broke the MSVC build bots because Visual Studio 2012 does not support variadic templates. Also reverting r222641 because it was relying on 222638.
Summary:
Often one is only interested in matches within the main-file or matches
that are not within a system-header, for which this patch adds
isInMainFile and isInSystemFile. They take no arguments and narrow down
the matches.
The isInFileMatchingName is mainly thought for interactive
clang-query-sessions, to make a matcher more specific without restarting
the session with the files you are interested in for that moment. It
takes a string that will be used as regular-expression to match the
filename of where the matched node is expanded.
Cygwin and MinGW fail to conform to the underlying system's structure passing
ABI. Make the check more precise to ensure that we correctly generate code for
the itanium environment.
Daniel Sanders [Sat, 22 Nov 2014 16:21:18 +0000 (16:21 +0000)]
Support matching signext attribute in the parallel_num_threads_codegen test to appease clang-cmake-mips builder.
The Mips target adds the signext attribute to signed 32-bit integers in order
to support the N32/N64 correctly. Integers must be promoted to 64-bit bit on
these ABI's.
Daniel Sanders [Sat, 22 Nov 2014 16:08:56 +0000 (16:08 +0000)]
Support matching signext attribute in vla-lambda-capturing test to appease clang-cmake-mips builder.
The Mips target adds the signext attribute to signed 32-bit integers in order
to support the N32/N64 correctly. Integers must be promoted to 64-bit bit on
these ABI's.
David Majnemer [Fri, 21 Nov 2014 21:09:12 +0000 (21:09 +0000)]
Sema: Don't permit variably modified types in typeid
GCC and ICC both reject this and the 'Runtime-sized arrays with
automatic storage duration' (N3639) paper forbade this as well.
Previously, we would crash on our way to mangling.
David Majnemer [Fri, 21 Nov 2014 19:57:25 +0000 (19:57 +0000)]
MS ABI: Mangle char16_t and char32_t string literals
We previously had support for char and wchar_t string literals. VS 2015
added support for char16_t and char32_t.
String literals must be mangled in the MS ABI in order for them to be
deduplicated across translation units: their linker has no notion of
mergeable section. Instead, they use the mangled name to make a COMDAT
for the string literal; the COMDAT will merge with other COMDATs in
other object files.
This allows strings in object files generated by clang to get merged
with strings in object files generated by MSVC.
Dmitry Vyukov [Fri, 21 Nov 2014 12:19:01 +0000 (12:19 +0000)]
clang: do not add -pie for tsan
Revision 220571 removes the requirement to use -pie for tsan binaries. So remove -pie from driver.
Also s/hasZeroBaseShadow/requiresPIE/ because that is what it is used for. Msan does not have zero-based shadow, but requires pie. And in general the relation between zero-based shadow and pie is unclear.