Those can occur in dead code. PR17402.

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Before, this could would lead to an assert:
  llvm::errs() << "
               << a;

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llvm-svn: 191638

llvm-svn: 191637

SDNode destructors are never called. As an optimization use AtomicSDNode's
internal storage if we have a small number of operands.

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llvm-svn: 191635

The general strategy is to create template versions of the conversion function and static invoker and then during template argument deduction of the conversion function, create the corresponding call-operator and static invoker specializations, and when the conversion function is marked referenced generate the body of the conversion function using the corresponding static-invoker specialization.  Similarly, Codegen does something similar - when asked to emit the IR for a specialized static invoker of a generic lambda, it forwards emission to the corresponding call operator. 

This patch has been reviewed in person both by Doug and Richard.  Richard gave me the LGTM.

A few minor changes:
  - per Richard's request i added a simple check to gracefully inform that captures (init, explicit or default) have not been added to generic lambdas just yet (instead of the assertion violation).
  - I removed a few lines of code that added the call operators instantiated parameters to the currentinstantiationscope. Not only did it not handle parameter packs, but it is more relevant in the patch for nested lambdas which will follow this one, and fix that problem more comprehensively.
  - Doug had commented that the original implementation strategy of using the TypeSourceInfo of the call operator to create the static-invoker was flawed and allowed const as a member qualifier to creep into the type of the static-invoker.  I currently kludge around it - but after my initial discussion with Doug, with a follow up session with Richard, I have added a FIXME so that a more elegant solution that involves the use of TrivialTypeSourceInfo call followed by the correct wiring of the template parameters to the functionprototypeloc is forthcoming.

Thanks! 
 

llvm-svn: 191634

llvm-svn: 191633

llvm-svn: 191632

Clang uses UTF-16 and UTF-32 for its char16_t's and char32_t's
exclusively. This means that we can define __STDC_UTF_16__ and
__STDC_UTF_32__ unconditionally.

While there, define __STDC_MB_MIGHT_NEQ_WC__ for FreeBSD. FreeBSD's
wchar_t's don't encode characters as ISO-10646; the encoding depends on
the locale used. Because the character set used might not be a superset
of ASCII, we must define __STDC_MB_MIGHT_NEQ_WC__.

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llvm-svn: 191630

instead, it's enabled by the -cc1 flag -fsized-deallocation, until we sort out
the backward-compatibility issues.

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llvm-svn: 191628

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out in projects. This appears to be working on my system, and I will be
watching build bots to see if there are any issues on other platforms.

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llvm-svn: 191623

llvm-svn: 191622

llvm-svn: 191621

* Add a TODO item

llvm-svn: 191620

llvm-svn: 191619

scan-build was complaining about:
The return value from the call to 'setgid' is not checked. If an error occurs in 'setgid', the following code may execute with unexpected privileges

llvm-svn: 191618

Remove useless declaration. If match_type == eNameMatchIgnore, we already left this function at the beginning of the method. Found by coverity. Fixes CID 1094188

llvm-svn: 191617

Switch to mkstemp.

* Get and display the error message when an error occurs while creating the temporary file

llvm-svn: 191616

llvm-svn: 191615

- We scan for whitespace between comments anyways, remember any newlines seen
  along the way.
- Use this newline number to decide whether two comments are adjacent.
- Since the newline check is now free remove the caching and unused code.
- Remove unnecessary boolean state from the comment list.
- No behavioral change.

llvm-svn: 191614

llvm-svn: 191613

multi-library path suffix.

The code calculates MIPS toolchain specific multi-lib path suffixes like
mips16/soft-float/el is moved to the separate function
findMultiLibSuffix(). This function called during GCC installation
detection and result is stored for the future using.

The patch reviewed by Rafael Espindola.
http://llvm-reviews.chandlerc.com/D1738

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putting them in the call operator's DeclContext. This better matches the
language wording and avoids some cases where code gets confused by them for
namespace-scope lambdas and the like.

llvm-svn: 191606

and capturing a variable declaration, and complete the implementation of them.

llvm-svn: 191605