llvm-6502/lib/Target/Sparc
Bill Wendling 56cb229866 Remove tabs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160477 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-19 00:11:40 +00:00
..
MCTargetDesc Prune some includes 2012-03-27 07:54:11 +00:00
TargetInfo
CMakeLists.txt llvm/lib: [CMake] Add explicit dependency to intrinsics_gen. 2012-06-24 13:32:01 +00:00
DelaySlotFiller.cpp Switch some getAliasSet clients to MCRegAliasIterator. 2012-06-01 20:36:54 +00:00
FPMover.cpp Use uint16_t to store registers and opcode in static tables in the target specific backends. 2012-03-11 07:16:55 +00:00
LLVMBuild.txt
Makefile
README.txt
Sparc.h
Sparc.td
SparcAsmPrinter.cpp There are a number of generic inline asm operand modifiers that 2012-06-26 13:49:27 +00:00
SparcCallingConv.td
SparcFrameLowering.cpp
SparcFrameLowering.h Round 2 of dead private variable removal. 2012-06-06 19:47:08 +00:00
SparcInstrFormats.td
SparcInstrInfo.cpp Convert some uses of XXXRegisterClass to &XXXRegClass. No functional change since they are equivalent. 2012-04-20 06:31:50 +00:00
SparcInstrInfo.h Reorder includes in Target backends to following coding standards. Remove some superfluous forward declarations. 2012-03-17 18:46:09 +00:00
SparcInstrInfo.td
SparcISelDAGToDAG.cpp
SparcISelLowering.cpp Remove tabs. 2012-07-19 00:11:40 +00:00
SparcISelLowering.h Change interface for TargetLowering::LowerCallTo and TargetLowering::LowerCall 2012-05-25 16:35:28 +00:00
SparcMachineFunctionInfo.cpp
SparcMachineFunctionInfo.h
SparcRegisterInfo.cpp Reorder includes in Target backends to following coding standards. Remove some superfluous forward declarations. 2012-03-17 18:46:09 +00:00
SparcRegisterInfo.h Use uint16_t to store registers in callee saved register tables to reduce size of static data. 2012-03-04 03:33:22 +00:00
SparcRegisterInfo.td
SparcSelectionDAGInfo.cpp
SparcSelectionDAGInfo.h
SparcSubtarget.cpp
SparcSubtarget.h
SparcTargetMachine.cpp Add all codegen passes to the PassManager via TargetPassConfig. 2012-07-02 19:48:31 +00:00
SparcTargetMachine.h Initialize SparcInstrInfo before SparcTargetLowering. 2012-05-04 02:16:39 +00:00

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

* Implement JIT support