bunch of associated comments, because it doesn't have anything to do
with DAGs or scheduling. This is another step in decoupling MachineInstr
emitting from scheduling.

llvm-svn: 85517

llvm-svn: 85361

Do away with addLegalFPImmediate. Add a target hook isFPImmLegal which returns true if the fp immediate can be natively codegened by target.

llvm-svn: 85281

VISIBILITY_HIDDEN removal.

llvm-svn: 85043

Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.

llvm-svn: 85042

a virtual register to eliminate a frame index, it can return that register
and the constant stored there to PEI to track. When scavenging to allocate
for those registers, PEI then tracks the last-used register and value, and
if it is still available and matches the value for the next index, reuses
the existing value rather and removes the re-materialization instructions.
Fancier tracking and adjustment of scavenger allocations to keep more
values live for longer is possible, but not yet implemented and would likely
be better done via a different, less special-purpose, approach to the
problem.

eliminateFrameIndex() is modified so the target implementations can return
the registers they wish to be tracked for reuse.

ARM Thumb1 implements and utilizes the new mechanism. All other targets are
simply modified to adjust for the changed eliminateFrameIndex() prototype.

llvm-svn: 83467

verbose-asm mode, print comments instead. This eliminates a non-comment
difference between verbose-asm mode and non-verbose-asm mode.

Also, factor out the relevant code out of all the targets and into
target-independent code.

llvm-svn: 83392

Update processDebugLoc() so that it can be used to process debug info before and after printing an instruction.

llvm-svn: 83363

they make it less convenient to add new entries.

llvm-svn: 83308

This will allow processDebugLoc() to handle scopes for DWARF debug info. 

llvm-svn: 83183

to emit target-specific things at the beginning of the asm output.  This
fixes a problem for PPC, where the text sections are not being kept together
as expected.  The base class doInitialization code calls DW->BeginModule()
which emits a bunch of DWARF section directives.  The PPC doInitialization
code then emits all the TEXT section directives, with the intention that they
will be kept together. But as I understand it, the Darwin assembler treats
the default TEXT section as a special case and moves it to the beginning of
the file, which means that all those DWARF sections are in the middle of
the text.  With this change, the EmitStartOfAsmFile hook is called before
the DWARF section directives are emitted, so that all the PPC text section
directives come out right at the beginning of the file.

llvm-svn: 83176

naming scheme used in SelectionDAG, where there are multiple kinds
of "target" nodes, but "machine" nodes are nodes which represent
a MachineInstr.

llvm-svn: 82790

Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks.

llvm-svn: 82311

Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes.
Not functionality change yet.

llvm-svn: 82273

llvm-svn: 81714

the object, make it static instead of const.

llvm-svn: 81711

Nothing is using this info yet.

llvm-svn: 81707

now that printBasicBlockLabel is only used for starting
a MBB.  This allows elimination of a bunch of arguments.

llvm-svn: 81684

instead.

llvm-svn: 81677

the MCInst path of the asmprinter.  Instead, pull comment printing
out of the autogenerated asmprinter into each target that uses the
autogenerated asmprinter.  This causes code duplication into each
target, but in a way that will be easier to clean up later when more
asmprinter stuff is commonized into the base AsmPrinter class.

This also fixes an xcore strangeness where it inserted two tabs
before every instruction.

llvm-svn: 81396

llvm-svn: 80773

Add MO flags to simplify the printing of relocations.
Remove the support for printing large code model relocs (which
aren't supported anyway).

llvm-svn: 80691

llvm-svn: 80584

llvm-svn: 80280

Add MO flags to simplify the printing of relocations.
Remove the support for printing large code model relocs (which
aren't supported anyway).

llvm-svn: 80278

 - The world needs better C++ refactoring tools, can I get an Amen!?

llvm-svn: 79843

llvm-svn: 79833

MachineInstr and MachineOperand.  This required eliminating a
bunch of stuff that was using DOUT, I hope that bill doesn't
mind me stealing his fun. ;-)

llvm-svn: 79813

llvm-svn: 79780

llvm-svn: 79779

llvm-svn: 79777

llvm-svn: 79763

talk to the MCStreamer directly instead.

llvm-svn: 79405

implemented somewhat differently than before, but it should have
the same functionality and the previous testcase passes again.

llvm-svn: 78900

llvm-svn: 78894

llvm-svn: 78848

pair instead of from a virtual method on TargetMachine.  This cuts the final
ties of TargetAsmInfo to TargetMachine, meaning that MC can now use 
TargetAsmInfo.

llvm-svn: 78802

the latter is capable of representing either a primitive or an extended type.

llvm-svn: 78713

LLVMTargetMachine ctor.  It is currently unused.

llvm-svn: 78711

no longer needs a targetmachine to initialize itself.

llvm-svn: 78710