being power-of-two sized.

llvm-svn: 178332

llvm-svn: 178221

Fails due to insufficient thread stack.

llvm-svn: 178135

llvm-svn: 177223

llvm-svn: 176996

llvm-svn: 176228

llvm-svn: 175730

Code review feedback for r175580 by Jordan Rose.

llvm-svn: 175729

llvm-svn: 175621

Code review feedback on r175580 from Jordan Rose.

llvm-svn: 175595

This generalizes Optional to require less from the T type by using aligned
storage for backing & placement new/deleting the T into it when necessary.

Also includes unit tests.

llvm-svn: 175580

llvm-svn: 175538

PR15138 was opened because of a segfault in the Bitcode writer.
The actual issue ended up being a bug in APInt where calls to
APInt::getActiveWords returns a bogus value when the APInt value
is 0.  This patch fixes the problem by ensuring that getActiveWords
returns 1 for 0 valued APInts.

llvm-svn: 174641

Thanks to Andrew, David, and Aaron for helping fix this.

llvm-svn: 174552

This reverts commit a33e1fafac7fedb1b080ef07ddf9ad6ddff3a830.

This unit test crashes on Darwon. It needs to be temporarily reverted
to unblock the test infrastructure.

llvm-svn: 174458

llvm-svn: 174357

reference to a pointer, so that it can handle the case where DataLayout
is not available and behave conservatively.

llvm-svn: 174024

As a bonus I put in some extra checks to make sure that we are identifying the
machine word of various Mac OS X/iOS targets appropriately.

llvm-svn: 173994

llvm-svn: 173712

llvm-svn: 173608

llvm-svn: 173513

llvm-svn: 173505

Fixes PR15054.

llvm-svn: 173459

I got blamed on darwin11;
unittests/Support/ManagedStatic.cpp:35: error: 'pthread_attr_setstack' was not declared in this scope

llvm-svn: 173355

unittests/SupportTests/Initialize.MultipleThreads: Appease --vg-leak to allocate stack explicitly for glibc.

llvm-svn: 173350

llvm-svn: 173240

llvm-svn: 173239

llvm-svn: 173238

It fixes --vg-leak.

llvm-svn: 173237

IRTests/ConstantsTest.cpp: AsInstructionsTest: Delete each instruction immediately if it is not linked.

llvm-svn: 173236

llvm-svn: 173235

llvm-svn: 173234

llvm-svn: 173233

ErrorOr<void> represents an operation that returns nothing, but can still fail.
It should be used in cases where you need the aditional user data that ErrorOr
provides over error_code.

llvm-svn: 173209

llvm-svn: 173144

llvm-svn: 173127

llvm-svn: 173123

A SparseMultiSet adds multiset behavior to SparseSet, while retaining SparseSet's desirable properties. Essentially, SparseMultiSet provides multiset behavior by storing its dense data in doubly linked lists that are inlined into the dense vector. This allows it to provide good data locality as well as vector-like constant-time clear() and fast constant time find(), insert(), and erase(). It also allows SparseMultiSet to have a builtin recycler rather than keeping SparseSet's behavior of always swapping upon removal, which allows it to preserve more iterators. It's often a better alternative to a SparseSet of a growable container or vector-of-vector.

llvm-svn: 173064

llvm-svn: 173004

Michael, can this test be ported to C++03?

llvm-svn: 172996