[Mesa-dev] [PATCH 3/9] nvc0/ir: Emit OP_SHFL

[Samuel Pitoiset]

On 04/08/2017 11:51 AM, Boyan Ding wrote:
> ---
>   .../drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp  | 51 ++++++++++++++++++++++
>   1 file changed, 51 insertions(+)
> 
> diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
> index d5a310f88c..8dd73bd77d 100644
> --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
> +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
> @@ -150,6 +150,8 @@ private:
>   
>      void emitPIXLD(const Instruction *);
>   
> +   void emitSHFL(const Instruction *);
> +
>      void emitVOTE(const Instruction *);
>   
>      inline void defId(const ValueDef&, const int pos);
> @@ -2529,6 +2531,52 @@ CodeEmitterNVC0::emitPIXLD(const Instruction *i)
>   }
>   
>   void
> +CodeEmitterNVC0::emitSHFL(const Instruction *i)
> +{

assert(targ->getChipset() >= NVISA_GK104_CHIPSET);

> +   code[0] = 0x00000005;
> +   code[1] = 0x88000000 | (i->subOp << 23);
> +
> +   emitPredicate(i);
> +
> +   defId(i->def(0), 14);
> +   srcId(i->src(0), 20);
> +
> +   switch (i->src(1).getFile()) {
> +   case FILE_GPR:
> +      srcId(i->src(1), 26);
> +      break;
> +   case FILE_IMMEDIATE:
> +      code[0] |= (i->src(1).get()->asImm()->reg.data.u32 & 0x1f) << 26;
> +      code[0] |= 1 << 5;
> +      break;
> +   default:
> +      assert(!"invalid src1 file");
> +      break;
> +   }
> +
> +   switch (i->src(2).getFile()) {
> +   case FILE_GPR:
> +      srcId(i->src(2), 49);
> +      break;
> +   case FILE_IMMEDIATE:
> +      code[1] |= (i->src(2).get()->asImm()->reg.data.u32 & 0x1fff) << 10;
> +      code[0] |= 1 << 6;
> +      break;
> +   default:
> +      assert(!"invalid src2 file");
> +      break;
> +   }
> +
> +   if (!i->defExists(1)) {
> +      code[0] |= 3 << 8;
> +      code[1] |= 1 << 26;
> +   } else {
> +      assert(i->def(1).getFile() == FILE_PREDICATE);
> +      setPDSTL(i->def(1));
> +   }
> +}
> +
> +void
>   CodeEmitterNVC0::emitVOTE(const Instruction *i)
>   {
>      assert(i->src(0).getFile() == FILE_PREDICATE);
> @@ -2837,6 +2885,9 @@ CodeEmitterNVC0::emitInstruction(Instruction *insn)
>      case OP_PIXLD:
>         emitPIXLD(insn);
>         break;
> +   case OP_SHFL:
> +      emitSHFL(insn);
> +      break;
>      case OP_VOTE:
>         emitVOTE(insn);
>         break;
>