llvm-svn: 22934

This gets us this for the previous testcase:

_test:
        lis r2, 0
        ori r3, r2, 65535
        blr

Note that we actually write to r3 (the return reg) correctly now :)

llvm-svn: 22933

temporary registers for things that define a register.  This allows dag->dag
isel to compile this:

int %test() { ret int 65535 }

into:

_test:
        lis r2, 0
        ori r2, r2, 65535
        blr

Next up, getting CopyFromReg to work, allowing arguments and cross-bb values.

llvm-svn: 22932

llvm-svn: 22929

llvm-svn: 22927

llvm-svn: 22926

llvm-svn: 22925

llvm-svn: 22924

namespace instead of the reg class namespace.  Update getRegClassForType()
to use modified names due to tblgen change.

llvm-svn: 22923

llvm-svn: 22922

llvm-svn: 22921

llvm-svn: 22917

llvm-svn: 22916

llvm-svn: 22915

llvm-svn: 22914

llvm-svn: 22913

llvm-svn: 22909

llvm-svn: 22907

(which died about a week ago) so we're back to load-(2^n-1)-then-AND
sequences. slow, but things should now be Almost Completely Working,
modulo those pesky alignment/ABI issues.

llvm-svn: 22904

llvm-svn: 22902

instruction.

llvm-svn: 22901

llvm-svn: 22896

cleanest backend in this metric :)

llvm-svn: 22893

I'm not convinced this is all of them,  but I can't do much testing, because
IA64 LLC crashes on big programs :(

llvm-svn: 22892

llvm-svn: 22891

Give a whole bunch of other stuff variable operands, particularly FP.  The
FP stackifier is playing fast and loose with operands here, so we have to
mark them all as variable.  This will have to be fixed before we can dag->dag
the X86 backend.  The solution is for the pre-stackifier and post-stackifier
instructions to all be disjoint.

llvm-svn: 22890

llvm-svn: 22889

llvm-svn: 22888

only take one operand.  The other comes implicitly in through CL.

llvm-svn: 22887

passed.

llvm-svn: 22886

llvm-svn: 22884

the operand lists of a few other nodes.

llvm-svn: 22883

llvm-svn: 22882

llvm-svn: 22881

llvm-svn: 22878

llvm-svn: 22877

codegen:

_empty:
.LBB_empty_0:   ;
        blr

but can't do anything more (yet). :)

llvm-svn: 22876

llvm-svn: 22870

llvm-svn: 22869

llvm-svn: 22868