llvm-6502/lib/Target/Sparc
Lang Hames 3025b00b7f [MCJIT] Nuke MachineRelocation and MachineCodeEmitter. Now that the old JIT is
gone they're no longer needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218320 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-23 18:08:47 +00:00
..
AsmParser TableGen: allow use of uint64_t for available features mask. 2014-08-18 11:49:42 +00:00
Disassembler Prune dependency to MC from each target disassembler. 2014-07-24 11:45:11 +00:00
InstPrinter Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
MCTargetDesc Remove HasLEB128. 2014-08-15 14:01:07 +00:00
TargetInfo Prune redundant dependencies in LLVMBuild.txt. 2013-12-11 00:30:57 +00:00
CMakeLists.txt Reinstate "Nuke the old JIT." 2014-09-02 22:28:02 +00:00
DelaySlotFiller.cpp Remove the TargetMachine forwards for TargetSubtargetInfo based 2014-08-04 21:25:23 +00:00
LLVMBuild.txt [Sparc] Add initial implementation of disassembler for sparc 2014-01-06 08:08:58 +00:00
Makefile Reinstate "Nuke the old JIT." 2014-09-02 22:28:02 +00:00
README.txt JIT support has been added awhile ago. 2014-08-30 14:52:34 +00:00
Sparc.h Reinstate "Nuke the old JIT." 2014-09-02 22:28:02 +00:00
Sparc.td [Sparc] Add VIS instructions to sparc backend. 2014-03-02 19:31:21 +00:00
SparcAsmPrinter.cpp Remove the TargetMachine forwards for TargetSubtargetInfo based 2014-08-04 21:25:23 +00:00
SparcCallingConv.td The SPARCv9 ABI returns a float in %f0. 2014-01-12 04:13:17 +00:00
SparcFrameLowering.cpp Have MachineFunction cache a pointer to the subtarget to make lookups 2014-08-05 02:39:49 +00:00
SparcFrameLowering.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
SparcInstr64Bit.td Sparc: disable printing on longer "brX,pt" aliases 2014-05-16 09:41:35 +00:00
SparcInstrAliases.td Sparc: disable printing of jmp/call aliases (C++ does it) 2014-05-16 09:41:39 +00:00
SparcInstrFormats.td [Sparc] Add trap on integer condition codes (Ticc) instructions to Sparc backend. 2014-03-02 23:39:07 +00:00
SparcInstrInfo.cpp Fix a lot of confusion around inserting nops on empty functions. 2014-09-15 18:32:58 +00:00
SparcInstrInfo.h Fix a lot of confusion around inserting nops on empty functions. 2014-09-15 18:32:58 +00:00
SparcInstrInfo.td Fix a whole bunch of binary literals which were the wrong size. All were being silently zero extended to the correct width. 2014-08-07 05:46:54 +00:00
SparcInstrVIS.td Fix a whole bunch of binary literals which were the wrong size. All were being silently zero extended to the correct width. 2014-08-07 05:46:54 +00:00
SparcISelDAGToDAG.cpp Remove the TargetMachine forwards for TargetSubtargetInfo based 2014-08-04 21:25:23 +00:00
SparcISelLowering.cpp Remove the target machine from CCState. Previously it was only used 2014-08-06 18:45:26 +00:00
SparcISelLowering.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
SparcMachineFunctionInfo.cpp
SparcMachineFunctionInfo.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
SparcMCInstLower.cpp [C++] Use 'nullptr'. Target edition. 2014-04-25 05:30:21 +00:00
SparcRegisterInfo.cpp Have MachineFunction cache a pointer to the subtarget to make lookups 2014-08-05 02:39:49 +00:00
SparcRegisterInfo.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
SparcRegisterInfo.td [Sparc] Add register class for floating point conditional flags (%fcc0 - %fcc3). 2014-03-02 02:12:33 +00:00
SparcSelectionDAGInfo.cpp Have SparcSelectionDAGInfo take a DataLayout to initialize since 2014-06-26 22:33:52 +00:00
SparcSelectionDAGInfo.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
SparcSubtarget.cpp Move the various Subtarget dependent members down to the subtarget 2014-06-26 22:33:55 +00:00
SparcSubtarget.h Reinstate "Nuke the old JIT." 2014-09-02 22:28:02 +00:00
SparcTargetMachine.cpp Reinstate "Nuke the old JIT." 2014-09-02 22:28:02 +00:00
SparcTargetMachine.h Reverting NFC changes from r218050. Instead, the warning was disabled for GCC in r218059, so these changes are no longer required. 2014-09-18 17:34:23 +00:00
SparcTargetObjectFile.cpp [C++] Use 'nullptr'. Target edition. 2014-04-25 05:30:21 +00:00
SparcTargetObjectFile.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
SparcTargetStreamer.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +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

* Use %g0 directly to materialize 0. No instruction is required.