sharp all or nothing transition when one extra predecessor was added. Now
we still test first ones for merging.

llvm-svn: 132974

llvm-svn: 132964

operands in the aliasee, don't print the alias.

llvm-svn: 132963

llvm-svn: 132962

line info correctly.

llvm-svn: 132961

llvm-svn: 132959

llvm-svn: 132954

llvm-svn: 132952

llvm-svn: 132946

llvm-svn: 132940

llvm-svn: 132939

llvm-svn: 132938

spartan right now, but I plan to encode more information in this enum to improve
the correctness and reliability of SRoA. At least this first pass makes it
possible to make VectorTy an actual VectorType.

llvm-svn: 132937

llvm-svn: 132936

The logic for reserving R4 for use as a scratch needs to match that for
actually using it. Also, it's not necessary for immediate <=508, so adjust
the value checked.

llvm-svn: 132934

Aliased flag options should be directed to stdout, not stderr to be consistent. Patch by Julien Lerouge.

llvm-svn: 132931

<rdar://problem/9600408>

llvm-svn: 132929

might overflow.  Re-typing the alloca to a larger type (e.g. double)
hoists a shift into the alloca, potentially exposing overflow in the
expression.  rdar://problem/9265821

llvm-svn: 132926

llvm-svn: 132925

only if the number of packed elements is a power of two.
Bug found in Duncan's testcase.

llvm-svn: 132923

llvm-svn: 132916

The backend already knew this trick.

llvm-svn: 132915

llvm-svn: 132914

llvm-svn: 132913

llvm-svn: 132912

llvm-svn: 132911

llvm-svn: 132910

llvm-svn: 132909

llvm-svn: 132908

intrinsics. In fact, we'll optimize a bitcast to that when possible. Detect it
when looking for the lifetime intrinsics.

No test case, noticed by inspection.

llvm-svn: 132906

In particular, don't spill dirty registers only to satisfy a hint. It is
not worth it.

The attached test case provides an example where the fast allocator
would spill a register when other registers are available.

llvm-svn: 132900

llvm-svn: 132899

having.

llvm-svn: 132898

InstCombine: Shrink ((zext X) & C1) == C2 to fold away the cast if the "zext" and the "and" have one use.

llvm-svn: 132897

llvm-svn: 132896

Only 163 days late!

llvm-svn: 132895

types such as i33 were rounded to i32. Originated from Duncan's testcase.

llvm-svn: 132893

Instead of scalarizing, and doing an element-by-element truncat, use vector
truncate.
Add support for scalarization of vectors:  i8 -> <1 x i1> (from Duncan's
testcase).

llvm-svn: 132892

element type is found.
This fix addresses some of the tests in Duncan's testcase (forthcoming).

llvm-svn: 132891

Make the hash tables as small as possible while ensuring that all
lookups can be done in less than 8 probes.

Cut the aliases hash table in half by only storing a < b pairs - it
is a symmetric relation.

Use larger multipliers on the initial hash function to ensure that it
properly covers the whole table, and to resolve some clustering in the
very regular ARM register bank.

This reduces the size of most of these tables by 4x - 8x. For instance,
the ARM tables shrink from 48 KB to 8 KB.

llvm-svn: 132888