llvm-svn: 179939

This is part of a future patch to use yamlio that incorrectly ended up in a
cleanup patch.

Thanks to Benjamin Kramer for reporting it.

llvm-svn: 179938

llvm-svn: 179937

llvm-svn: 179936

Avoids a couple of copies and allows more flexibility in the clients.

llvm-svn: 179935

SLPVectorizer: Reduce the compile time by eliminating the search for some of the more expensive patterns. After this change will only check basic arithmetic trees that start at cmpinstr.

llvm-svn: 179933

llvm-svn: 179932

llvm-svn: 179931

llvm-svn: 179930

llvm-svn: 179929

llvm-svn: 179928

llvm-svn: 179927

The getSwappedPredicate function can be used in other places (such as in
improvements to the PPCCTRLoops pass). Instead of trapping it as a static
function in PPCInstrInfo, move it into PPCPredicates with other
predicate-related things.

No functionality change intended.

llvm-svn: 179926

Add CodeGen support for functions that always return arguments via a new parameter attribute 'returned', which is taken advantage of in target-independent tail call opportunity detection and in ARM call lowering (when placed on an integral first parameter).

llvm-svn: 179925

Allow tail call opportunity detection through nested and/or multiple iterations of extractelement/insertelement indirection

llvm-svn: 179924

llvm-svn: 179923

llvm-svn: 179922

llvm-svn: 179921

* using namespace llvm.
* whitespace.
* early return.

llvm-svn: 179920

Instead, use MappingNormalization to directly parse COFF::header. Also change
the naming convention of the helper classes to be a bit shorter.

llvm-svn: 179917

llvm-svn: 179913

llvm-svn: 179908

llvm-svn: 179906

The logic that actually compares the types considers pointers and integers the
same if they are of the same size. This created a strange mismatch between hash
and reality and made the test case for this fail on some platforms (yay,
test cases).

llvm-svn: 179905

llvm-svn: 179903

trying to move as much FastISel logic as possible out of the main path in
SelectionDAGISel - intermixing them just adds confusion.

llvm-svn: 179902

llvm-svn: 179901

When matching a compare with a subtract where the arguments of the compare are
swapped w.r.t. the arguments of the subtract, we need to negate the predicates
(or CR bit indices) of the users. This, however, is not the same as inverting
the predicate (negating LT -> GT, but inverting LT -> GE, for example). The ARM
backend seems to do this correctly, but when I adapted the code for the PPC
backend, I introduced an error in this logic.

Comparison optimization is now enabled again by default.

llvm-svn: 179899

This checks the sanity of the register use lists in the MI intermediate
representation.

llvm-svn: 179895

llvm-svn: 179894

Use MappingNormalization to read a COFF::relocation directly.

No functionality change.

llvm-svn: 179891

llvm-svn: 179890

Based on the patch by David Nadlinger!

llvm-svn: 179889

llvm-svn: 179888

Add a testcase to make sure we generate the proper compact unwind section for a function that cannot produce a compact unwind encoding.

llvm-svn: 179887

Also make some static function class functions to avoid having to mention the
class namespace for enums all the time.

No functionality change intended.

llvm-svn: 179886

llvm-svn: 179881

llvm-svn: 179880

rdar://problem/13463793

llvm-svn: 179877

llvm-svn: 179875