Introduce SpecialCaseList::isIn overload for GlobalAliases.

Differential Revision: http://llvm-reviews.chandlerc.com/D1437

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188688 91177308-0d34-0410-b5e6-96231b3b80d8
Add definition of __warn_unused_result__ attribute. It will be used in the
futher commits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188689 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Fix instruction definitions that were incorrectly marked as code-gen-only.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188690 91177308-0d34-0410-b5e6-96231b3b80d8
Adding comments to document RuntimeDyld relocation handling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188697 91177308-0d34-0410-b5e6-96231b3b80d8
Improve the widening of integral binary vector operations

- split WidenVecRes_Binary into WidenVecRes_Binary and WidenVecRes_BinaryCanTrap
  - WidenVecRes_BinaryCanTrap preserves the original behaviour for operations
    that can trap
  - WidenVecRes_Binary simply widens the operation and improves codegen for
    3-element vectors by allowing widening and promotion on x86 (matches the
    behaviour of unary and ternary operation widening)
- use WidenVecRes_Binary for operations on integers.

Reviewed by: nrotem



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188699 91177308-0d34-0410-b5e6-96231b3b80d8
Suppress an annoying CMake warning in ChooseMSVCCRT.cmake

Warning was:
  Argument not separated from preceding token by whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188701 91177308-0d34-0410-b5e6-96231b3b80d8
Turn on pubnames by default on linux.

Until gdb supports the new accelerator tables we should add the
pubnames section so that gdb_index can be generated from gold
at link time. On darwin we already emit the accelerator tables
and so don't need to worry about pubnames.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188708 91177308-0d34-0410-b5e6-96231b3b80d8
Adding tests for PIC with MCJIT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188709 91177308-0d34-0410-b5e6-96231b3b80d8
Revert non-test parts of r188507

Re-add the inboundsless tests I didn't add originally

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188710 91177308-0d34-0410-b5e6-96231b3b80d8
Use less verbose code and update comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188711 91177308-0d34-0410-b5e6-96231b3b80d8
Fix assert with GEP ptr vector indexing structs

Also fix it calculating the wrong value. The struct index
is not a ConstantInt, so it was being interpreted as an array
index.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188713 91177308-0d34-0410-b5e6-96231b3b80d8
Reverting r188709 until I can figure out the proper way to XFAIL it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188715 91177308-0d34-0410-b5e6-96231b3b80d8
Make sure that pop_back_val() result is used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188717 91177308-0d34-0410-b5e6-96231b3b80d8
commonPointerCast cleanups to make address space change easier

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188719 91177308-0d34-0410-b5e6-96231b3b80d8
Cleanup visitGetElementPtr to make address space change easier

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188720 91177308-0d34-0410-b5e6-96231b3b80d8
Teach InstCombine visitGetElementPtr about address spaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188721 91177308-0d34-0410-b5e6-96231b3b80d8
Use pop_back_val() instead of both back() and pop_back().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188723 91177308-0d34-0410-b5e6-96231b3b80d8
Introduce non-const overloads for GlobalAlias::{get,resolve}AliasedGlobal.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188725 91177308-0d34-0410-b5e6-96231b3b80d8
Adding PIC support for ELF on x86_64 platforms

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188726 91177308-0d34-0410-b5e6-96231b3b80d8
Don't form PPC CTR-based loops around a copysignl call

copysign/copysignf never become function calls (because the SDAG expansion code
does not lower to the corresponding function call, but rather directly
implements the associated logic), but copysignl almost always is lowered into a
call to the requested libm functon (and, thus, might clobber CTR).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188727 91177308-0d34-0410-b5e6-96231b3b80d8