While printing "interesting" breakpoint locations for debug info quality test harness, focus only on entry block's terminator for now.

llvm-svn: 124610

Add -Wcustom-atomic-properties which warns if an atomic-by-default property has custom getter or setter.

The rationale is that it is highly likely that the user's getter/setter isn't atomically implemented. Off by default.
Addresses rdar://8782645.

-Wcustom-atomic-properties and -Wimplicit-atomic-properties are under the -Watomic-properties group.

llvm-svn: 124609

Enumerate .code16/32/64 instead of checking .code prefix. This
unbreaks some ARM tests.

llvm-svn: 124608

llvm-svn: 124605

llvm-svn: 124604

all lead to a silent miscompilation of code.

llvm-svn: 124603

llvm-svn: 124602

Fix vector sign extend to put the source and destination types in the
correct places.

llvm-svn: 124601

llvm-svn: 124600

llvm-svn: 124599

llvm-svn: 124598

to adjust the stack pointer by adding an imm7-scaled value to the SP.

llvm-svn: 124596

llvm-svn: 124595

llvm-svn: 124594

conversions (<rdar://problem/8592139>) for overload resolution. The
conversion ranking mirrors C++'s conversion ranking fairly closely,
except that we use a same pseudo-subtyping relationship employed by
Objective-C pointer assignment rather than simple checking
derived-to-base conversions. This change covers:

  - Conversions to pointers to a specific object type are better than
  conversions to 'id', 'Class', qualified 'id', or qualified 'Class'
  (note: GCC doesn't perform this ranking, but it matches C++'s rules
  for ranking conversions to void*).
  - Conversions to qualified 'id' or qualified 'Class' are better than
  conversions to 'id' or 'Class', respectively.
  - When two conversion sequences convert to the same type, rank the
  conversions based on the relationship between the types we're
  converting from. 
  - When two conversion sequences convert from the same non-id,
  non-Class type, rank the conversions based on the relationship of
  the types we're converting to. (note: GCC allows this ranking even
  when converting from 'id', which is extremeley dangerous).

llvm-svn: 124591

for dlopen/dlerror.

Patch by arrowdodger!

llvm-svn: 124590

llvm-svn: 124589

llvm-svn: 124588

llvm-svn: 124587

llvm-svn: 124586

llvm-svn: 124585

allow ref-qualifiers on function types used as template type
arguments. GNU actually allows cv-qualifiers on function types in many
places where it shouldn't, so we currently categorize this as a GNU
extension.

llvm-svn: 124584

llvm-svn: 124583

llvm-svn: 124582

llvm-svn: 124581

Fix the diagnostic when we are shadowing an external variable and there exists a locally scoped extern with the same name.

llvm-svn: 124580

llvm-svn: 124579

llvm-svn: 124578

Fixes rdar://8736362.

llvm-svn: 124577

Error for use of field from anonymous struct or union should say "invalid use of nonstatic data member"
not "call to non-static member function without an object argument".

llvm-svn: 124576

Allow taking the address of such a field for a pointer-to-member constant. Fixes rdar://8818236.

llvm-svn: 124575

llvm-svn: 124574

This fixes a few compile errors when parsing <regex> from MSVC 2008 with clang.

llvm-svn: 124573

llvm-svn: 124570

llvm-svn: 124569

(A+B) == A  ->  B == 0
A == (A+B)  ->  B == 0

llvm-svn: 124567

current translation unit as available_externally. 

This helps devirtualize the second example in PR3100, comment 18:

struct S { S() {}; virtual void xyzzy(); };
inline void foo(S *s) { s->xyzzy(); }
void bar() { S s; foo(&s); }

This involved four major changes:

1. In DefineUsedVTables, always mark virtual member functions as referenced for
   non-template classes and class template specializations.
2. In CodeGenVTables::ShouldEmitVTableInThisTU return true if optimizations are
   enabled, even if the key function is not implemented in this translation 
   unit. We don't ever do this for code compiled with -fapple-kext, because we
   don't ever want to devirtualize virtual member function calls in that case.
3. Give the correct linkage for vtables where the key function is not defined.
4. Update the linkage for RTTI structures when necessary.

llvm-svn: 124565

This is similar to the -unroll-threshold option. There should be no change in
behavior when -tail-dup-size is not explicit on the llc command line.

llvm-svn: 124564

and implemented it for the EmulateInstructionARM class.

llvm-svn: 124563

of the EmulateInstruction class.

llvm-svn: 124562