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

instructions on an ilist

llvm-svn: 10556

Minor cleanups to killer pass

llvm-svn: 10555

llvm-svn: 10554

llvm-svn: 10545

llvm-svn: 10542

* Doxygenified comments
* Reordered #includes

llvm-svn: 10503

llvm-svn: 10502

llvm-svn: 10501

implementation of a Target{RegInfo, InstrInfo, Machine, etc} now has a separate
header and a separate implementation file.

This means that instead of a massive SparcInternals.h that forces a
recompilation of the whole target whenever a minor detail is changed, you should
only recompile a few files.

Note that SparcInternals.h is still around; its contents should be minimized.

llvm-svn: 10500

    a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
    b) add isUse(), isDef()
    c) rename opHiBits32() to isHiBits32(),
              opLoBits32() to isLoBits32(),
              opHiBits64() to isHiBits64(),
              opLoBits64() to isLoBits64().

This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.

llvm-svn: 10461

llvm-svn: 10460

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

a pointer.  This evades a warning emitted by GCC when we cast from
unsigned int (32 bit) to void * (64 bit) on SparcV9.

llvm-svn: 10435

namespacification.

llvm-svn: 10430

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

folding of instructions into addressing modes.  This creates lots of dead
instructions, which are currently not deleted.  It also creates a lot of
instructions that the X86 backend currently cannot handle.  :(

llvm-svn: 10275

llvm-svn: 10274

llvm-svn: 10270

the other way around, instead of failing a large, tumor-like assertion.

llvm-svn: 10171

llvm-svn: 10170

llvm-svn: 10168

* Restore registers *after* everything else to avoid any possible side effects

This fixes McCat-imp.

llvm-svn: 10147

llvm-svn: 10069

llvm-svn: 9954

* There is now only one pass to print out assembly instead of two
* It is a FunctionPass
* The Module-level printing of globals is now in doFinalization() method of the
  FunctionPass
* The code has been reformatted to follow LLVM coding standards
* Some comments, not all, were doxygenified
* Last but not least, the function to create an instance of this pass is also no
  longer a method in the UltraSparc class.

llvm-svn: 9953

the UltraSparc class.

llvm-svn: 9952

UltraSparc class. Comments are also doxygen-compatible now.

llvm-svn: 9951

* Pass creation functions are no longer in the UltraSparc class

llvm-svn: 9950

llvm-svn: 9949

llvm-svn: 9903

llvm-svn: 9830

llvm-svn: 9806

are being added as FunctionPasses... Sigh.

llvm-svn: 9798

llvm-svn: 9793

for the Sparc backend: breaking up constant expressions. Thus, we cannot have it
guarded by a conditional, it should never be disabled.

Also, it's now available for the JIT since it is a FunctionPass.

llvm-svn: 9791

llvm-svn: 9777

MachineConstantPool. This involved refactoring the two classes involved in
printing out Sparc assembly. In fact, they should share all this code anyway.

llvm-svn: 9776

llvm-svn: 9775