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

llvm-svn: 172991

In r143502, we renamed getHostTriple() to getDefaultTargetTriple()
as part of work to allow the user to supply a different default
target triple at configure time.  This change also affected the JIT.
However, it is inappropriate to use the default target triple in the
JIT in most circumstances because this will not necessarily match
the current architecture used by the process, leading to illegal
instruction and other such errors at run time.

Introduce the getProcessTriple() function for use in the JIT and
its clients, and cause the JIT to use it.  On architectures with a
single bitness, the host and process triples are identical.  On other
architectures, the host triple represents the architecture of the
host CPU, while the process triple represents the architecture used
by the host CPU to interpret machine code within the current process.
For example, when executing 32-bit code on a 64-bit Linux machine,
the host triple may be 'x86_64-unknown-linux-gnu', while the process
triple may be 'i386-unknown-linux-gnu'.

This fixes JIT for the 32-on-64-bit (and vice versa) build on non-Apple
platforms.

Differential Revision: http://llvm-reviews.chandlerc.com/D254

llvm-svn: 172627

llvm-svn: 172615

llvm-svn: 172614

llvm-svn: 172474

Use const_cast<> to avoid cast-away-const errors.

llvm-svn: 172464

The folding set details can be subtle and broke twice in the last couple of weeks.

llvm-svn: 172313

Patch by Michael Muller.

llvm-svn: 172214

llvm-svn: 172108

llvm-svn: 172107

llvm-svn: 172105