6 Commits

Author SHA1 Message Date
Rui Ueyama
dca64dbccc Update to use new name alignTo().
llvm-svn: 257804
2016-01-14 21:06:47 +00:00
James Y Knight
37bdf9ea3e [TrailingObjects] Dynamically realign under-aligned trailing objects.
Previously, the code enforced non-decreasing alignment of each trailing
type. However, it's easy enough to allow for realignment as needed, and
thus avoid the developer having to think about the possiblilities for
alignment requirements on all architectures.

(E.g. on Linux/x86, a struct with an int64 member is 4-byte aligned,
while on other 32-bit archs -- and even with other OSes on x86 -- it has
8-byte alignment. This sort of thing is irritating to have to manually
deal with.)

llvm-svn: 256533
2015-12-29 04:00:43 +00:00
Kostya Serebryany
8270e2df22 fix leak in a test, make the sanitizer bot green
llvm-svn: 256179
2015-12-21 19:09:01 +00:00
James Y Knight
6a87ac0efb Rewrite the TrailingObjects template to provide two new features:
- Automatic alignment of the base type for the alignment requirements
   of the trailing types.

 - Support for an arbitrary numbers of trailing types, instead of only
   1 or 2, by using a variadic template implementation.

Upcoming commits to clang will take advantage of both of these features.

Differential Revision: http://reviews.llvm.org/D12439

llvm-svn: 256054
2015-12-18 22:54:37 +00:00
Yaron Keren
6670ac798b Fix Visual C++ error C2248:
'llvm::TrailingObjects<`anonymous-namespace'::Class1,short,llvm::NoTrailingTypeArg>::additionalSizeToAlloc' :
cannot access protected member declared in class
 'llvm::TrailingObjects<`anonymous-namespace'::Class1,short,llvm::NoTrailingTypeArg>'

 I'm not sure how this compiles with gcc.
 Aren't protecteded members accessible only with protected or public inheritance?
 

llvm-svn: 244199
2015-08-06 07:59:26 +00:00
James Y Knight
45f6b5bc69 Add a TrailingObjects template class.
This is intended to help support the idiom of a class that has some
other objects (or multiple arrays of different types of objects)
appended on the end, which is used quite heavily in clang.

Differential Revision: http://reviews.llvm.org/D11272

llvm-svn: 244164
2015-08-05 22:57:34 +00:00