explain that r12 is the stack pointer reg

llvm-svn: 25336

Compile this:

%_2E_str_8 = external global [75 x sbyte]
implementation   ; Functions:
declare int %printf(sbyte*, ...)
void %test()
        %tmp.101 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([75 x sbyte]* %_2E_str_8, int 0, int 0) )             ; <int> [#uses=0]
        unreachable
}

to this:

main_endif_2E_8:
        save -96, %o6, %o6
        sethi %hi(_2E_str_8), %l0
        add %l0, %lo(_2E_str_8), %o0
        call printf
        nop

instead of this:

main_endif_2E_8:
        save -96, %o6, %o6
        sethi %hi(_2E_str_8), %l0
        or %g0, %lo(_2E_str_8), %l1   ;; extra instruction
        add %l1, %l0, %o0
        call printf
        nop

llvm-svn: 25335

llvm-svn: 25334

llvm-svn: 25333

llvm-svn: 25332

llvm-svn: 25330

llvm-svn: 25326

llvm-svn: 25324

llvm-svn: 25322

llvm-svn: 25312

llvm-svn: 25308

llvm-svn: 25307

llvm-svn: 25304

llvm-svn: 25296

llvm-svn: 25293

flipped around.

llvm-svn: 25290

llvm-svn: 25282

llvm-svn: 25278

llvm-svn: 25277

llvm-svn: 25274

llvm-svn: 25272

llvm-svn: 25271

llvm-svn: 25263

llvm-svn: 25261

llvm-svn: 25260

llvm-svn: 25259

llvm-svn: 25257

ExternalSymbol to TargetExternalSymbol.

llvm-svn: 25253

llvm-svn: 25249

linked together).

llvm-svn: 25247

  LEA32r.
* Do not lower GlobalAddress to TargetGlobalAddress. Let isel does it.

llvm-svn: 25246

llvm-svn: 25244

llvm-svn: 25243

the scheduler will complain)

llvm-svn: 25241

llvm-svn: 25239

llvm-svn: 25238

llvm-svn: 25237

you to ride off into the sunset.

llvm-svn: 25236

llvm-svn: 25235

llvm-svn: 25234