llvm-svn: 174444

  - This is so that we can easily write XFAIL markers for tests that are known
    to fail with versions of libc++ as were shipped with a particular triple.

llvm-svn: 174443

is a vararg function.

The original code was examining flag OutputArg::IsFixed to determine whether
CC_MipsN_VarArg or CC_MipsN should be called. This is not correct, since this
flag is often set to false when the function being analyzed is a non-variadic
function.

llvm-svn: 174442

llvm-svn: 174441

 - We parse up to the first non-empty non-comment (C++ style) line, otherwise
   the format and semantics match what is used for LLVM/Clang tests.

 - For now, the only interesting thing to test against is a user supplied
   target_triple test parameter.

llvm-svn: 174440

llvm-svn: 174439

llvm-svn: 174438

llvm-svn: 174437

(void*)p.

Addresses the false positives similar to the test case.

llvm-svn: 174436

llvm-svn: 174435

llvm-svn: 174434

llvm-svn: 174433

llvm-svn: 174432

Reapply r174343, with a fix for a scary DAG combine bug where it failed to differentiate between the alignment of the
base point of a load, and the overall alignment of the load.  This caused infinite loops in DAG combine with the
original application of this patch.

ORIGINAL COMMIT LOG:
When the target-independent DAGCombiner inferred a higher alignment for a load,
it would replace the load with one with the higher alignment.  However, it did
not place the new load in the worklist, which prevented later DAG combines in
the same phase (for example, target-specific combines) from ever seeing it.

This patch corrects that oversight, and updates some tests whose output changed
due to slightly different DAGCombine outputs.

llvm-svn: 174431

Found by running instcombine on a fabricated test case for the constant folder.

llvm-svn: 174430

         zext( set[ne,eq,gt,ugt] (...) ) type of dag patterns.

llvm-svn: 174429

llvm-svn: 174428

llvm-svn: 174427

llvm-svn: 174426

llvm-svn: 174425

This was introduced in r173293.

llvm-svn: 174424

Introduce a helper class that computes the cost of memory access instructions.
No functionality change intended.

llvm-svn: 174422

Removed asserts and replaced them with conditional code and appropriate errors that prompt for a bug to be filed.

llvm-svn: 174420

llvm-svn: 174419

edge is critical, then split it so we can insert the store.
rdar://13126179

llvm-svn: 174418

All targets are now adding return value registers as implicit uses on
return instructions, and there is no longer a need for the live out
lists.

llvm-svn: 174417

Now that return value registers are return instruction uses, there is no
need for special treatment of return blocks.

llvm-svn: 174416

llvm-svn: 174415

llvm-svn: 174414

llvm-svn: 174413

llvm-svn: 174412

llvm-svn: 174411

llvm-svn: 174410

llvm-svn: 174409

llvm-svn: 174408

llvm-svn: 174407

llvm-svn: 174406

This was fixed by r174402.

llvm-svn: 174405

 - This controls whether to execute against the locally built library or
   not. The default is currently True which maps to what was already being done
   by default.

 - I'd appreciate it if someone can implement the proper handling of this flag
   on linux, I no longer remember the details of its .so handling.

llvm-svn: 174404

The changed files are not yet clang-format clean, but we are getting close.

llvm-svn: 174403