llvm-6502/lib/Target/Sparc
Dan Gohman e3cc3f3c84 Instead of printing unnecessary basic block labels as labels in
verbose-asm mode, print comments instead. This eliminates a non-comment
difference between verbose-asm mode and non-verbose-asm mode.

Also, factor out the relevant code out of all the targets and into
target-independent code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83392 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-06 17:38:38 +00:00
..
AsmPrinter Instead of printing unnecessary basic block labels as labels in 2009-10-06 17:38:38 +00:00
TargetInfo Normalize target registration code. 2009-07-31 18:16:53 +00:00
CMakeLists.txt Normalize makefile comments and sort cmake file lists. 2009-08-31 13:05:24 +00:00
DelaySlotFiller.cpp Remove non-DebugLoc versions of buildMI from Sparc. 2009-02-13 02:31:35 +00:00
FPMover.cpp remove various std::ostream version of printing methods from 2009-08-23 03:41:05 +00:00
Makefile Add TargetInfo libraries for all targets. 2009-07-15 06:35:19 +00:00
README.txt
Sparc.h Add new helpers for registering targets. 2009-07-25 06:49:55 +00:00
Sparc.td Move target independent td files from lib/Target/ to include/llvm/Target so they can be distributed along with the header files. 2008-11-24 07:34:46 +00:00
SparcCallingConv.td Fix a thinko and unbreak sparc default CC 2008-10-10 21:47:37 +00:00
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 Rename getTargetNode to getMachineNode, for consistency with the 2009-09-25 18:54:59 +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 Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo. 2008-03-31 20:40:39 +00:00
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