Cross Reference: /external/llvm/lib/Target/Sparc/

To-do
-----

* Keep the address of the constant pool in a register instead of forming its
  address all of the time.
* We can fold small constant offsets into the %hi/%lo references to constant
  pool addresses as well.
* When in V9 mode, register allocate %icc[0-3].
* Add support for isel'ing UMUL_LOHI instead of marking it as Expand.
* Emit the 'Branch on Integer Register with Prediction' instructions.  It's
  not clear how to write a pattern for this though:

float %t1(int %a, int* %p) {
        %C = seteq int %a, 0
        br bool %C, label %T, label %F
T:
        store int 123, int* %p
        br label %F
F:
        ret float undef
}

codegens to this:

t1:
        save -96, %o6, %o6
1)      subcc %i0, 0, %l0
1)      bne .LBBt1_2    ! F
        nop
.LBBt1_1:       ! T
        or %g0, 123, %l0
        st %l0, [%i1]
.LBBt1_2:       ! F
        restore %g0, %g0, %g0
        retl
        nop

1) should be replaced with a brz in V9 mode.

* Same as above, but emit conditional move on register zero (p192) in V9
  mode.  Testcase:

int %t1(int %a, int %b) {
        %C = seteq int %a, 0
        %D = select bool %C, int %a, int %b
        ret int %D
}

* Emit MULX/[SU]DIVX instructions in V9 mode instead of fiddling
  with the Y register, if they are faster.

* Codegen bswap(load)/store(bswap) -> load/store ASI

* Implement frame pointer elimination, e.g. eliminate save/restore for
  leaf fns.
* Fill delay slots

* Use %g0 directly to materialize 0. No instruction is required.
Name	Date	Size
..	23-Aug-2016	4 KiB
AsmParser/	23-Aug-2016	4 KiB
CMakeLists.txt	23-Aug-2016	1 KiB
DelaySlotFiller.cpp	23-Aug-2016	14.3 KiB
Disassembler/	23-Aug-2016	4 KiB
InstPrinter/	23-Aug-2016	4 KiB
LLVMBuild.txt	23-Aug-2016	1 KiB
Makefile	23-Aug-2016	798
MCTargetDesc/	23-Aug-2016	4 KiB
README.txt	23-Aug-2016	1.5 KiB
Sparc.h	23-Aug-2016	4.3 KiB
Sparc.td	23-Aug-2016	4 KiB
SparcAsmPrinter.cpp	23-Aug-2016	16.3 KiB
SparcCallingConv.td	23-Aug-2016	5.6 KiB
SparcFrameLowering.cpp	23-Aug-2016	13.2 KiB
SparcFrameLowering.h	23-Aug-2016	2.4 KiB
SparcInstr64Bit.td	23-Aug-2016	23.3 KiB
SparcInstrAliases.td	23-Aug-2016	19.1 KiB
SparcInstrFormats.td	23-Aug-2016	9.1 KiB
SparcInstrInfo.cpp	23-Aug-2016	16.2 KiB
SparcInstrInfo.h	23-Aug-2016	3.8 KiB
SparcInstrInfo.td	23-Aug-2016	57 KiB
SparcInstrVIS.td	23-Aug-2016	11.1 KiB
SparcISelDAGToDAG.cpp	23-Aug-2016	14.6 KiB
SparcISelLowering.cpp	23-Aug-2016	132 KiB
SparcISelLowering.h	23-Aug-2016	8.6 KiB
SparcMachineFunctionInfo.cpp	23-Aug-2016	448
SparcMachineFunctionInfo.h	23-Aug-2016	1.9 KiB
SparcMCInstLower.cpp	23-Aug-2016	3.3 KiB
SparcRegisterInfo.cpp	23-Aug-2016	8.2 KiB
SparcRegisterInfo.h	23-Aug-2016	1.8 KiB
SparcRegisterInfo.td	23-Aug-2016	11.5 KiB
SparcSubtarget.cpp	23-Aug-2016	2.8 KiB
SparcSubtarget.h	23-Aug-2016	3 KiB
SparcTargetMachine.cpp	23-Aug-2016	4.5 KiB
SparcTargetMachine.h	23-Aug-2016	2.6 KiB
SparcTargetObjectFile.cpp	23-Aug-2016	1.6 KiB
SparcTargetObjectFile.h	23-Aug-2016	1,014
SparcTargetStreamer.h	23-Aug-2016	1.5 KiB
TargetInfo/	23-Aug-2016	4 KiB