llvm-svn: 119610

llvm-svn: 119608

the operand to the pattern.

llvm-svn: 119607

memset; we may need it to decide between MOVAPS and MOVUPS
later.  Adjust a test that was looking for wrong code.
PR 3866 / 8675131.

llvm-svn: 119605

llvm-svn: 119604

llvm-svn: 119603

just pretend to be.

llvm-svn: 119602

llvm-svn: 119601

common encoding information.

llvm-svn: 119598

llvm-svn: 119597

queries, and SCEVExpander getRelevantLoop queries.

llvm-svn: 119595

llvm-svn: 119593

llvm-svn: 119590

it as such. Add some encoding information.

llvm-svn: 119588

Some of these maps may merge in the future, but for now it's convenient to have
a utility function for them.

llvm-svn: 119587

memoize the results. This improves compile time in code which highly complex
expressions which get queried many times.

llvm-svn: 119584

to ScalarEvolution. Delete SCEV::~SCEV. SCEV is no longer virtual.

llvm-svn: 119578

llvm-svn: 119575

llvm-svn: 119573

llvm-svn: 119570

This completes the fixes for Radar 8673120.

llvm-svn: 119566

It is generally not sufficient to check if the starting offset is in range
of the maximum offset that can be efficiently used for the target.

llvm-svn: 119565

This makes it more clear that the symbol is an internal, compiler-generated
name and gives a little more description about its contents.

llvm-svn: 119564

It was mistakenly looking at the pointer type when checking for the size of
global variables.  This is a partial fix for Radar 8673120.

llvm-svn: 119563

functions of ScalarEvolution, in preparation for memoization and
other optimizations.

llvm-svn: 119562

in the MC lowering process.

llvm-svn: 119559

Avoid isel movcc of large immediates when the large immediate is available in a register. These immediates aren't free.

llvm-svn: 119558

to avoid an unneeded dependence.

llvm-svn: 119557

needs to be checked that this won't break LCSSA form.
Change the existing checking method to a more direct one:
rather than seeing if all predecessors belong to the loop,
check that the replacing value is either not in any loop or
is in a loop that contains the phi node.

llvm-svn: 119556

llvm-svn: 119555

instead of in SCEVAddRecExpr's constructor, in preparation for an
upcoming change.

llvm-svn: 119554

llvm-svn: 119551

default ctor with ConstantRange.

llvm-svn: 119550

and xor. The 32-bit move immediates can be hoisted out of loops by machine
LICM but the isel hacks were preventing them.

Instead, let peephole optimization pass recognize registers that are defined by
immediates and the ARM target hook will fold the immediates in.

Other changes include 1) do not fold and / xor into cmp to isel TST / TEQ
instructions if there are multiple uses. This happens when the 'and' is live
out, machine sink would have sinked the computation and that ends up pessimizing
code. The peephole pass would recognize situations where the 'and' can be
toggled to define CPSR and eliminate the comparison anyway.

2) Move peephole pass to after machine LICM, sink, and CSE to avoid blocking
important optimizations.

rdar://8663787, rdar://8241368

llvm-svn: 119548

llvm-svn: 119547

llvm-svn: 119546

llvm-svn: 119542

llvm-svn: 119539

llvm-svn: 119538

instructions out of InstCombine and into InstructionSimplify.  While
there, introduce an m_AllOnes pattern to simplify matching with integers
and vectors with all bits equal to one.

llvm-svn: 119536