Revert "Recommit r212203: Don't try to construct debug LexicalScopes hierarchy for functions that do not have top level debug information."

This reverts commit r212649 while I investigate/reduce/etc PR20367.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213581 91177308-0d34-0410-b5e6-96231b3b80d8
Match semantics of PointerMayBeCapturedBefore to its name by default

As it turns out, the capture tracker named CaptureBefore used by AA, and now
available via the PointerMayBeCapturedBefore function, would have been
more-aptly named CapturedBeforeOrAt, because it considers captures at the
instruction provided. This is not always what one wants, and it is difficult to
get the strictly-before behavior given only the current interface. This adds an
additional parameter which controls whether or not you want to include
captures at the provided instruction. The default is not to include the
instruction provided, so that 'Before' matches its name.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213582 91177308-0d34-0410-b5e6-96231b3b80d8
Add some tests for NVPTX lowering of cmpxchg


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213586 91177308-0d34-0410-b5e6-96231b3b80d8
Rename metadata llvm.loop.vectorize.unroll to llvm.loop.vectorize.interleave.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213588 91177308-0d34-0410-b5e6-96231b3b80d8
Revert of r213521. This change introduced a non-hermetic test (depending on a
file not in the test/ area). Backing out now so that this test isn't part of
the 3.5 branch.

Original commit message: "TableGen: Allow AddedComplexity values to be negative
[...]"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213596 91177308-0d34-0410-b5e6-96231b3b80d8
Add openmp to the list of tagged things.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213608 91177308-0d34-0410-b5e6-96231b3b80d8
[SDAG] Remove a giant pile of asserts that may have helped track down
a bug in 2010 when they were added but are adding no value today.

In fact, they are utter lies. NodeAllocator is used to allocate almost
all of these node types. I don't know what we were trying to assert
here, and the docs don't give any answer. Until we once again stumble
upon a bug needing help, let's clear the path for improvements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213610 91177308-0d34-0410-b5e6-96231b3b80d8
[SDAG] Refactor the code for inserting a newly allocated SDNode into the
DAG into a helper function.

This adds a trip through the (very minimal) verification logic in
a bunch of places that were missing it, but shouldn't have any other
impact outside of refactoring. I'm hoping to use this to do more clever
things when DAG nodes are inserted into the graph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213612 91177308-0d34-0410-b5e6-96231b3b80d8
fixed typo in comment


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213614 91177308-0d34-0410-b5e6-96231b3b80d8
AVX-512: Fixed intrinsic of VSQRTPS/PD instructions.
I set number and types of parameters according to GCC intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213640 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Fix two patterns that select i32's (for MIPS32r6) / i64's (for MIPS64r6)
from setne comparison with an i32.

The patterns that are fixed:
  * (select (i32 (setne i32, immZExt16)), i32, i32) (for MIPS32r6)
  * (select (i32 (setne i32, immZExt16)), i64, i64) (for MIPS64r6)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213653 91177308-0d34-0410-b5e6-96231b3b80d8
[OCaml] Don't truncate constants over 32 bits in Llvm.const_int.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213655 91177308-0d34-0410-b5e6-96231b3b80d8
Fix Sphinx warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213660 91177308-0d34-0410-b5e6-96231b3b80d8
Treat warnings in Sphinx as errors. The reasons for doing this are...

- When CMake builds the documentation with sphinx-build it treats
  warnings as errors. We should be consistent with what we do in
  CMake.
- Having warnings treated as errors will hopefully encourage
  developers to write documentation correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213661 91177308-0d34-0410-b5e6-96231b3b80d8
This patch implements transform for pattern "(A | B) ^ (~A) -> (A | ~B)".

Patch Credit to Ankit Jain !!

Differential Revision: http://reviews.llvm.org/D4588



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213662 91177308-0d34-0410-b5e6-96231b3b80d8
Added LLVM_ENABLE_RTTI and LLVM_ENABLE_EH options that allow RTTI and EH
to globally be controlled. Individual targets (e.g.  ExceptionDemo) can
still override this by using LLVM_REQUIRE_RTTI and LLVM_REQUIRE_EH if
they need to be compiled with RTTI or exception handling respectively.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213663 91177308-0d34-0410-b5e6-96231b3b80d8
Export LLVM_ENABLE_RTTI and LLVM_ENABLE_EH in LLVMConfig.cmake so
clients of LLVM know if RTTI and/or EH were enabled in the build of
LLVM they are trying to link against.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213664 91177308-0d34-0410-b5e6-96231b3b80d8
X86: drop relocations on __eh_frame sections globally.

Without this, we produce non-extern relocations when targeting older OS X
versions that ld64 can't cope with in the particular context of __eh_frame
sections (who'd want generic relocation-processing anyway?).

This means that an updated linker (ld64 from Xcode 3.2.6 or later) may be
needed when targeting such platforms with a modern version of LLVM, but this is
probably the case anyway and a reasonable requirement.

PR20212, rdar://problem/17544795

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213665 91177308-0d34-0410-b5e6-96231b3b80d8
Make use of the align parameter attribute for all pointer arguments

We previously supported the align attribute on all (pointer) parameters, but we
only used it for byval parameters. However, it is completely consistent at the
IR level to treat 'align n' on all pointer parameters as an alignment
assumption on the pointer, and now we wll. Specifically, this causes
computeKnownBits to use the align attribute on all pointer parameters, not just
byval parameters. I've also added an explicit parameter attribute test for this
to test/Bitcode/attributes.ll.

And I've updated the LangRef to document the align parameter attribute (as it
turns out, it was not documented at all previously, although the byval
documentation mentioned that it could be used).

There are (at least) two benefits to doing this:
 - It allows enhancing alignment based on the pointer alignment after inlining callees.
 - It allows simplification of pointer arithmetic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213670 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Fix comments about __sanitizer_cov function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213673 91177308-0d34-0410-b5e6-96231b3b80d8