This function can still work without a BUNDLE header instruction.

llvm-svn: 172029

requirement when creating stack objects in MachineFrameInfo.

Add CreateStackObjectWithMinAlign to throw error when the minimal alignment
can't be achieved and to clamp the alignment when the preferred alignment
can't be achieved. Same is true for CreateVariableSizedObject.
Will not emit error in CreateSpillStackObject or CreateStackObject.

As long as callers of CreateStackObject do not assume the object will be
aligned at the requested alignment, we should not have miscompile since
later optimizations which look at the object's alignment will have the correct
information.

rdar://12713765

llvm-svn: 172027

llvm-svn: 172026

llvm-svn: 172022

llvm-svn: 172020

llvm-svn: 172015

llvm-svn: 172011

ARM Cost model: Use the size of vector registers and widest vectorizable instruction to determine the max vectorization factor.

llvm-svn: 172010

It cahced XOR's operands before calling visitXOR() but failed to update the
operands when visitXOR changed the XOR node.

rdar://12968664

llvm-svn: 171999

Move the internal PrintStackTrace function that is used for llvm::sys::PrintStackTraceOnErrorSignal(),
into a new function llvm::sys::PrintStackTrace, so that it's available to clients for logging purposes.

llvm-svn: 171989

[ObjCARC Debug Messages] This is a squashed commit of 3x debug message commits ala echristo's suggestion.

1. Added debug messages when in OptimizeIndividualCalls we move calls into predecessors and then erase the original call.
2. Added debug messages when in the process of moving calls in ObjCARCOpt::MoveCalls we create new RR and delete old RR.
3. Added a debug message when we visit a specific retain instruction in ObjCARCOpt::PerformCodePlacement.

llvm-svn: 171988

The bundle flags are used by MachineBasicBlock::print(), they don't need
to clutter up individual MachineInstrs.

llvm-svn: 171986

It is possible to build MI bundles that don't begin with a BUNDLE
header. Add support for such bundles, counting all instructions inside
the bundle.

llvm-svn: 171985

Fixes PR14854.

llvm-svn: 171984

Fix a typo in MachineInstr::unbundleFromSucc() method.

llvm-svn: 171983

 
This patch adjust the r171506 to make all DWARF enconding pc-relative
for PPC64. It also adds the R_PPC64_REL32 relocation handling in MCJIT
(since the eh_frame will not generate PIC-relative relocation) and also
adds the emission of stubs created by the TTypeEncoding.

llvm-svn: 171979

fp128 is almost but not quite completely illegal as a type on AArch64. As a
result it needs to have a register class (for argument passing mainly), but all
operations need to be lowered to runtime calls. Currently there's no way for
targets to do this (without duplicating code), as the relevant functions are
hidden in SelectionDAG. This patch changes that.

llvm-svn: 171971

llvm-svn: 171960

llvm-svn: 171954

PR 14848. The lowered sequence is based on the existing sequence the target-independent
DAG Combiner creates for the scalar case.

Patch by Zvi Rackover.

llvm-svn: 171953

llvm-svn: 171951

address space. Reordered the EmitULEB128IntValue arguments to
make this easier.

llvm-svn: 171949

This was an experimental option, but needs to be defined
per-target. e.g. PPC A2 needs to aggressively hide latency.

I converted some in-order scheduling tests to A2. Hal is working on
more test cases.

llvm-svn: 171946

test/DebugInfo/member-pointers.ll would not fail in targetting BE any more.

llvm-svn: 171943

It's clearer and additionally this gets rid of the usage of `DefmID`,
which doesn't really correspond to anything in the language (it was just
used in the name of this parsing function which parsed a `MultiClassID`
and returned that multiclass's record).

This area of the code still needs a lot of work.

llvm-svn: 171938

llvm-svn: 171937

llvm-svn: 171936

It's not just def's but actually a limited subset of Object's that are
allowed inside a multiclass.

Spotted by Joel Jones.

llvm-svn: 171935

them.

llvm-svn: 171933

them and add one where it seemed obvious that we wanted one.

llvm-svn: 171932

Cost Model: Move the 'max unroll factor' variable to the TTI and add initial Cost Model support on ARM.

llvm-svn: 171928

(There already has a concise comment to the declaration.)

Thank Eric Christopher for his feedback!

llvm-svn: 171926

llvm-svn: 171924

This is causing some problems. The root cause is unknown at this time.

llvm-svn: 171923

  - this expression is explicitly marked no-signed-zero, or
  - no-signed-zero of this expression can be derived from some context.

llvm-svn: 171922

llvm-svn: 171905

method because getContents().size() already covers it. So computeFragmentSize
can use the generic MCEncodedFragment interface when querying both Data and
Relaxable fragments for contents sizes.

No change in functionality

llvm-svn: 171903

Stop using BumpPtrAllocator for HNodes because
they have fields (vector, map) which require HNode 
destructors to be run.

llvm-svn: 171896

an R_MIPS_GPREL16 relocation.


Contributer: Jack Carter
llvm-svn: 171882

value in the 64 bit .eh_frame section.

It doesn't however allow exception handling to work
yet since it depends on the correct relocation model
being set in the ELF header flags.


Contributer: Jack Carter
llvm-svn: 171881