Tablgen files for really simple instruction selector

llvm-svn: 12714

llvm-svn: 12578

folding compares into the select yet.

llvm-svn: 12553

llvm-svn: 12541

llvm-svn: 12122

where there did not used to be any before

llvm-svn: 11829

that will be responsible for the creation of MachineFunctions and will
be required by all MachineFunctionPass passes.

llvm-svn: 11453

ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.

llvm-svn: 11340

llvm-svn: 11218

at Chris's request.

llvm-svn: 11120

implementation from the TargetMachine directly.

llvm-svn: 10636

llvm-svn: 10629

instruction selector by adding a new pseudo-instruction
FP_REG_KILL. This instruction implicitly defines all x86 fp registers
and is a terminator so that passes which add machine code at the end
of basic blocks (like phi elimination) do not add instructions between
it and the branch or return instruction.

llvm-svn: 10562

been emitted.  Also, since the FPK pass is causing memory access violations,
disable it.

llvm-svn: 10559

llvm-svn: 10542

allocaton on the X86 to add information to the machine code denoting
that our floating point stackifier cannot handle virtual point
register that are alive across basic blocks. This pass adds an
implicit def of all virtual floating point register at the end of each
basic block.

llvm-svn: 10446

Eventually this pass will provide substantially better code in the interim between when we
have a crappy isel and nice isel.  Unfortunately doing so requires fixing the backend to
actually SUPPORT all of the fancy addressing modes that we now generate, and writing a DCE
pass for machine code.  Each of these is a fairly substantial job, so this will remain disabled
for the immediate future.  :(

llvm-svn: 10276

llvm-svn: 9903

llvm-svn: 9758

Header files will be on the way.

llvm-svn: 9298

llvm-svn: 9288

llvm-svn: 9281

displacement.

llvm-svn: 9210

llvm-svn: 9204

llvm-svn: 8871

Moved enum and command-line option in separate file. Also added function that returns the user selected register allocator to the caller.

llvm-svn: 8819

llvm-svn: 8815

llvm-svn: 8805

llvm-svn: 8804

llvm-svn: 8132

This bug caused miscompilation of programs using 'struct stat', but only if
compiled with support for 64-bit filesystems.  This could in theory effect
other things, but only if the LLVM code shared data structures with native code.

llvm-svn: 7928

 function-at-a-time compilation and emission of code.
Separate addPassesToEmitAssembly from addPassesToJITCompile, because
 the latter requires you to use FunctionPasses, and the former might
 diverge anyway.

llvm-svn: 7817

the early implementation phases, so it is disabled by default

llvm-svn: 7719

llvm-svn: 7600

llvm-svn: 7352

  Printer::doFinalization() out in the cold.  Now we pass in a TargetMachine
  to Printer's constructor and get the TargetData from the TargetMachine.
 Don't pass TargetMachine or MRegisterInfo objects around in the Printer.
 Constify TargetData references.
X86.h: Update comment and prototype of createX86CodePrinterPass().
X86TargetMachine.cpp: Update callers of createX86CodePrinterPass().

llvm-svn: 7275

 (non-working) of llc guts for X86, and add a prototype for it.

llvm-svn: 6779

llvm-svn: 5963

llvm-svn: 5935

llvm-svn: 5867