llvm-svn: 185748

[objc-arc] Performed some small cleanups in ARCRuntimeEntryPoints and added an llvm_unreachable after the switch to quiet -Wreturn_type errors.

llvm-svn: 185746

This boils down to us sending invalid function decls to
CheckFunctionDeclaration becauswe we did not consider that CheckMain
could cause the decl to be invalid.  Instead, interogate the new decl's
main-validity and *then* send it over to get CheckFunctionDeclaration'd
if it was still valid after calling CheckMain.

llvm-svn: 185745

This fixes an issue that came up due to -fpermissive on the bots.

llvm-svn: 185744

llvm-svn: 185743

llvm-svn: 185742

llvm-svn: 185741

This is the first patch in a series of 3 patches which clean up how we create
runtime function declarations in the ARC optimizer when they do not exist
already in the IR.

Currently we have a bunch of duplicated code in ObjCARCOpts, ObjCARCContract
that does this. This patch refactors that code into a separate class called
ARCRuntimeEntryPoints which lazily creates the declarations for said
entrypoints.

The next two patches will consist of the work of refactoring
ObjCARCContract/ObjCARCOpts to use this new code.

llvm-svn: 185740

llvm-svn: 185739

llvm-svn: 185738

llvm-svn: 185737

llvm-svn: 185736

functions. Make the function attributes pass add it to known library functions
and when it can deduce it.

llvm-svn: 185735

class type. // rdar://14261999

llvm-svn: 185734

No functional change intended.

llvm-svn: 185733

use can cause crash. No test is available. It is uncovered
by code browsing.  // rdar://14348205

llvm-svn: 185732

llvm-svn: 185731

llvm-svn: 185730

llvm-svn: 185729

llvm-svn: 185728

Include a test that clang now produces output files with permissions matching
the umask.

llvm-svn: 185727

This function is complementary to createTemporaryFile. It handles the case were
the unique file is *not* temporary: we will rename it in the end. Since we
will rename it, the file has to be in the same filesystem as the final
destination and we don't prepend the system temporary directory.

This has a small semantic difference from unique_file: the default mode is 0666.
This matches the behavior of most unix tools. For example, with this change
lld now produces files with the same permissions as ld. I will add a test
of this change when I port clang over to createUniqueFile (next commit).

llvm-svn: 185726

llvm-svn: 185725

use of objc's properties.

llvm-svn: 185724

llvm-svn: 185723

[libclang] Introduce clang_Cursor_isObjCOptional, which returns whether the declaration was affected by "@optional"

rdar://14348525.

llvm-svn: 185722

This changes the TBAA code so it doesn't use mangleCXXRTTIName in C,
because it doesn't really make sense there.  Also, as sort of a
defense-in-depth change, fix the mangler so it handles C RecordDecls
correctly.

No tests because I don't know the TBAA code well enough to write a test,
and I don't know how else to trigger mangling a local struct in C.

Fixes a crash with r185450 reported by Joerg Sonnenberger.

llvm-svn: 185721

reenabled reverted patch after checking that it passes without regressions on
the nightly test-suite.  Added testcase from Tobi.

llvm-svn: 185720

llvm-svn: 185719

llvm-svn: 185718

llvm-svn: 185717

This function is inspired by clang's Driver::GetTemporaryPath. It hides the
pattern used for uniquing and requires simple file names that are always
placed in the system temporary directory.

llvm-svn: 185716

llvm-svn: 185715

llvm-svn: 185714

As it turns out, the NoFunction bit for local class mangling needed to be
propagated into more places. r185450 turned what used to be an incorrect
mangling into an assertion.

llvm-svn: 185713

A "pkhtb x, x, y asr #num" uses the lower 16 bits of "y asr #num" and packs them
in the bottom half of "x". An arithmetic and logic shift are only equivalent in
this context if the shift amount is 16. We would be shifting in ones into the
bottom 16bits instead of zeros if "y" is negative.

radar://14338767

llvm-svn: 185712

Remove implicit conversion from __value_type to value_type in [unordered_][multi]map.  This fixes http://llvm.org/bugs/show_bug.cgi?id=16549

llvm-svn: 185711

abstract class type. // rdar://14261999

llvm-svn: 185710

llvm-svn: 185709

llvm-svn: 185708