llvm-6502/lib/Target/Sparc
2009-09-19 09:51:03 +00:00
..
AsmPrinter several major improvements to the sparc backend: support for weak linkage 2009-09-15 17:46:24 +00:00
TargetInfo
CMakeLists.txt Normalize makefile comments and sort cmake file lists. 2009-08-31 13:05:24 +00:00
DelaySlotFiller.cpp
FPMover.cpp remove various std::ostream version of printing methods from 2009-08-23 03:41:05 +00:00
Makefile
README.txt
Sparc.h
Sparc.td
SparcCallingConv.td
SparcInstrFormats.td
SparcInstrInfo.cpp several major improvements to the sparc backend: support for weak linkage 2009-09-15 17:46:24 +00:00
SparcInstrInfo.h several major improvements to the sparc backend: support for weak linkage 2009-09-15 17:46:24 +00:00
SparcInstrInfo.td several major improvements to the sparc backend: support for weak linkage 2009-09-15 17:46:24 +00:00
SparcISelDAGToDAG.cpp several major improvements to the sparc backend: support for weak linkage 2009-09-15 17:46:24 +00:00
SparcISelLowering.cpp Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks. 2009-09-19 09:51:03 +00:00
SparcISelLowering.h Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes. 2009-09-18 21:02:19 +00:00
SparcMachineFunctionInfo.h add missing file 2009-09-15 18:03:13 +00:00
SparcMCAsmInfo.cpp Add source debug information to the Sparc code generator. 2009-09-08 12:47:30 +00:00
SparcMCAsmInfo.h Rename TargetAsmInfo (and its subclasses) to MCAsmInfo. 2009-08-22 20:48:53 +00:00
SparcRegisterInfo.cpp Add source debug information to the Sparc code generator. 2009-09-08 12:47:30 +00:00
SparcRegisterInfo.h
SparcRegisterInfo.td several major improvements to the sparc backend: support for weak linkage 2009-09-15 17:46:24 +00:00
SparcSubtarget.cpp Normalize Subtarget constructors to take a target triple string instead of 2009-08-02 22:11:08 +00:00
SparcSubtarget.h Normalize Subtarget constructors to take a target triple string instead of 2009-08-02 22:11:08 +00:00
SparcTargetMachine.cpp Rename TargetAsmInfo (and its subclasses) to MCAsmInfo. 2009-08-22 20:48:53 +00:00
SparcTargetMachine.h Change TargetAsmInfo to be constructed via TargetRegistry from a Target+Triple 2009-08-12 07:22:17 +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