Add an AST matcher for real floating-point types. e.g., float, double, long double, but not complex.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261221 91177308-0d34-0410-b5e6-96231b3b80d8

Patch by Alex Sidorin!

Differential Revision: http://reviews.llvm.org/D17376


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Currently we return no results when completing inside of the brackets in
a 'char foo[]' declaration. Let the generic expression completion code
handle it instead. We could get fancier here (e.g. filter non-constant
expressions in contexts where VLAs are not allowed), but it's a strict
improvement over the existing version.

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Patch fixes bug with codegen for lastprivate loop counters. Also it may
improve performance for lastprivates calculations in some cases.

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to force debug build and hopefully enable more precise warnings.

Static Analyzer is much more efficient when built in debug mode
(-UNDEBUG) so we advice users to enable it manually. This may be
inconvenient in case of large complex projects (think about Linux
distros e.g. Android or Tizen). This patch adds a flag to scan-build
which inserts -UNDEBUG automatically.

Differential Revision: http://reviews.llvm.org/D16200


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261204 91177308-0d34-0410-b5e6-96231b3b80d8

Differential Revision: http://reviews.llvm.org/D16955



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Our support for C++ EH is sufficiently good that it makes sense to
enable support for it out of the box.

While we are here, update the MSVCCompatibility doc.

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Clang implements an enable_if attribute as an extension.  Hook up `-Wpedantic`
to issue an extension usage warning when __enable_if__ is used.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261192 91177308-0d34-0410-b5e6-96231b3b80d8

If ActOn*Op fails, we will forget to diagnose typos in the LHS of
expressions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261191 91177308-0d34-0410-b5e6-96231b3b80d8

[sanitizer-coverage] allow -fsanitize-coverage=trace-pc w/o any other sanitizer and w/o ...=[func,bb,edge]. This makes this syntax a superset of the GCC's syntax

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We prematurely ended the line at the null byte which caused us to crash
down stream because we tried to reason about columns beyond the end of
the line.

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An optional nopartial can be placed after the platform name.
int bar() __attribute__((availability(macosx,nopartial,introduced=10.12))

When deploying back to a platform version prior to when the declaration was
introduced, with 'nopartial', Clang emits an error specifying that the function
is not introduced yet; without 'nopartial', the behavior stays the same: the
declaration is `weakly linked`.

A member is added to the end of AttributeList to save the location of the
'nopartial' keyword. A bool member is added to AvailabilityAttr.

The diagnostics for 'nopartial' not-yet-introduced is handled in the same way as
we handle unavailable cases.

Reviewed by Doug Gregor and Jordan Rose.

rdar://23791325


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thousands of modules, each of which declares the same namespace, linearly
scanning the redecl chain looking for a visible declaration (once for each leaf
module, for each use) performs very poorly. Namespace visibility can only
decrease when we leave a module during a module build step, and we never care
*which* visible declaration of a namespace we find, so we can cache this very
effectively.

This results in a 35x speedup on one of our internal build steps (2m -> 3.5s),
but is hard to unit test because it requires a very large number of modules.
Ideas for a test appreciated! No functionality change intended other than the
speedup.


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[sanitizer-coverage] implement -fsanitize-coverage=trace-pc. This is similar to trace-bb, but has a different API. We already use the equivalent flag in GCC for Linux kernel fuzzing. We may be able to use this flag with AFL too

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The assert is triggered because isObjCRetainableType() is called on the
canonicalized return type that has been stripped of the typedefs and
attributes attached to it. To fix this assert, this commit gets the
original return type from CurCodeDecl or BlockInfo and uses it instead
of the canoicalized type.

rdar://problem/24470031

Differential Revision: http://reviews.llvm.org/D16914


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Summary:
I've got a patchset in my home directory to integrate support for
SafeStack into CloudABI's C library. All of the CloudABI unit tests
still seem to pass. Pretty sweet!

This change adds the necessary changes to Clang to make
-fsanitize=safe-stack work on CloudABI. Without it, passing this command
line flag throws an error.

Reviewers: eugenis, samsonov

Differential Revision: http://reviews.llvm.org/D17243

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We didn't correctly handle some edge cases, causing us to bail out
before correcting all the typos.

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Added codegen for captured data members in non-static member functions.

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OpenCL Extension v1.2 s9.5 allows half precision floating point
type literals with suffices h or H when cl_khr_fp16 is enabled.

Example:  half x = 1.0h;

Patch by Liu Yaxun (Sam)!

Differential Revision: http://reviews.llvm.org/D16865



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Patch fixes possible problems with correct handling arrays as
expressions in initialization, conditions etc in loop-based constructs.

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This appears to be passing '-Wl,-order_file' to Linux link commands,
which then causes the linker to silently, behind the scenes, write the
output to 'rder_file' instead of somewhere else. Will work with Chris to
figure out the proper support for this, but so far there are numerous
people who can't get Clang to update when they build because of this.

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Summary: Use the new pipeline implemented in D17115

Reviewers: tejohnson

Subscribers: joker.eph, cfe-commits

Differential Revision: http://reviews.llvm.org/D17272

From: Mehdi Amini <mehdi.amini@apple.com>

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Patch by Erik Pilkington!


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ptxas optimizations are disabled if we need to generate debug info
as ptxas does not accept '-g' otherwise.

Differential Revision: http://reviews.llvm.org/D17111

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Add a nullPointerConstant() AST matcher to handle variations of null pointer constants in one matcher.

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Summary:
The keyword "template" isn't necessary when
printing a fully-qualified qualtype name, and, in fact,
results in a syntax error if one tries to use it. So stop
printing it.

Reviewers: rsmith, rnk

Subscribers: rnk, klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D17214

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Tag the test with "REQUIRES: can-remove-opened-file", which is what we
use for the similar test Modules/explicit-build-missing-file.cpp.

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Previously we would leave behind the old name specifier prefix, which
creates an invalid AST.  Other callers of CorrectTypo update their
CXXScopeSpec objects with the correction specifier if one is present.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@260993 91177308-0d34-0410-b5e6-96231b3b80d8

Like cl.exe, clang-cl allows adding system include directories via the
INCLUDE env var.  Having a driver flag for this functionality is useful,
so add this too.

(In the future, we probably also want to have a flag alternative to
VCINSTALLDIR as used in MSVCToolChain::getVisualStudioBinaries(), and
a way to override the registry accesses in MSVCToolChain::getWindowsSDKDir()
-- maybe -ivcroot= and -iwinsdkroot=?).



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Loop-based directives allow to use iterators as loop counters. Iterators are allowed to define their own operators. This patch allows to use compound assignment operators for iterators.

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Expressions inside 'schedule'|'dist_schedule' clause must be captured in
combined directives to avoid possible crash during codegen. Patch
improves handling of such constructs

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[Frontend] Make sure WrapperFrontendAction updates CurrentInput after calling BeginSourceFileAction.

I don't have a test case to add unfortunately.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@260937 91177308-0d34-0410-b5e6-96231b3b80d8

clang/test/Driver/ps4-linker-win.c: Tweak substitutions if %PATH% ends with '\\', or lit complains with "parser error".

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r260925 introduced a version of the *trim methods which is preferable
when trimming a single kind of character. Update all users in clang.

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