llvm-svn: 94587

Add extra element to composite type. This new element will be used to record c++ class that holds current class's vtable.

llvm-svn: 94586

Default HasSetDirective to true, since most targets have it.

The targets that claim to not have it probably do, or it is
spelled differently. These include Blackfin, Mips, Alpha, and
PIC16.  All of these except pic16 are normal ELF targets, so
they almost certainly have it.

llvm-svn: 94585

llvm-svn: 94583

Original patch by Sandeep Patel and updated by me.

llvm-svn: 94582

that has it.

llvm-svn: 94581

llvm-svn: 94580

and clean up some loose ends.

llvm-svn: 94572

llvm-svn: 94570

llvm-svn: 94567

llvm-svn: 94562

llvm-svn: 94560

llvm-svn: 94558

than an iteration count.

llvm-svn: 94549

in the case of empty and full ranges.

llvm-svn: 94548

wrapping that Duncan pointed out.

llvm-svn: 94547

llvm-svn: 94544

subsumed by TargetLowering::getJumpTableEncoding().  Change uses of
it to be more specific.

llvm-svn: 94529

inline it into its only caller, allowing us to simplify it
and hoist bits out of the loop.

llvm-svn: 94528

which is more convenient, and change getPICJumpTableRelocBaseExpr
to take a MachineFunction to match.

Next, move the X86 code that create a PICBase symbol to
X86TargetLowering::getPICBaseSymbol from 
X86MCInstLower::GetPICBaseSymbol, which was an asmprinter specific 
library.  This eliminates a 'gross hack', and allows us to
implement X86ISelLowering::getPICJumpTableRelocBaseExpr which now
calls it.

This in turn allows us to eliminate the 
X86AsmPrinter::printPICJumpTableSetLabel method, which was the
only overload of printPICJumpTableSetLabel.

llvm-svn: 94526

use it to implement the default TargetLowering::getPICJumpTableRelocBaseExpr

llvm-svn: 94523

implement it.

llvm-svn: 94521

EK_LabelDifference32 kind and the target has .set support.  Simplify
X86AsmPrinter::printPICJumpTableSetLabel to make use of recent helpers.

llvm-svn: 94518

make it private and non-virtual.  It handles the non-pic
case too, so just use it, simplifying EmitJumpTableInfo.

llvm-svn: 94517

jump table entry kind, instead of overloading 
AsmPrinter::printPICJumpTableEntry.

This has a pretty horrible and inefficient FIXME around how @GOTOFF
is currently smashed into the mcsymbol name, but otherwise this is
much cleaner.

llvm-svn: 94516

the AsmPrinter::GetMBBSymbol.

llvm-svn: 94515

* Fixed a reduction bug which occasionally led to infinite-cost (invalid)
  register allocation solutions despite the existence finite-cost solutions.
* Significantly reduced memory usage (>50% reduction).
* Simplified a lot of the solver code.

llvm-svn: 94514

have trouble with an intermediate add overflowing. Also, be more conservative
about the case where the induction variable in an SLT loop exit can step past
the RHS of the SLT and overflow in a single step.

Make getSignedRange more aggressive, to recover for some common cases which
the above fixes pessimized.

This addresses rdar://7561161.

llvm-svn: 94512

AsmPrinter::SetupMachineFunction sets it.  Note that systemz
and msp430 didn't.  Yay for reduced inconsistency! :)

llvm-svn: 94510

MachineFunctionAnalysis dole them out, instead of having
AsmPrinter do both.  Have the AsmPrinter::SetupMachineFunction
method set the 'AsmPrinter::MF' variable.

llvm-svn: 94509

llvm-svn: 94507

llvm-svn: 94506

jump table entries.

llvm-svn: 94505

llvm-svn: 94502

JITInfo::getPICJumpTableEntry can probably be removed now, but I don't plan to do 
this.

llvm-svn: 94501

instead of magic variables.

llvm-svn: 94500

In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store.

llvm-svn: 94493

Add MDNode::getIfExists(), an efficient way to determine if a value is used by metadata (since metadata does not appear in a value's use list)

llvm-svn: 94492

llvm-svn: 94491

llvm-svn: 94490