static void txp_fetch_args(
	struct lp_build_tgsi_context * bld_base,
	struct lp_build_emit_data * emit_data)
{
	const struct tgsi_full_instruction * inst = emit_data->inst;
	LLVMValueRef src_w;
	unsigned chan;
	LLVMValueRef coords[5];

	emit_data->dst_type = LLVMVectorType(bld_base->base.elem_type, 4);
	src_w = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_W);

	for (chan = 0; chan < 3; chan++ ) {
		LLVMValueRef arg = lp_build_emit_fetch(bld_base,
						emit_data->inst, 0, chan);
		coords[chan] = lp_build_emit_llvm_binary(bld_base,
					TGSI_OPCODE_DIV, arg, src_w);
	}
	coords[3] = bld_base->base.one;

	if ((inst->Texture.Texture == TGSI_TEXTURE_CUBE ||
	     inst->Texture.Texture == TGSI_TEXTURE_CUBE_ARRAY ||
	     inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE ||
	     inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE_ARRAY) &&
	    inst->Instruction.Opcode != TGSI_OPCODE_TXQ &&
	    inst->Instruction.Opcode != TGSI_OPCODE_TXQ_LZ) {
		radeon_llvm_emit_prepare_cube_coords(bld_base, emit_data, coords, NULL);
	}

	emit_data->args[0] = lp_build_gather_values(bld_base->base.gallivm,
						coords, 4);
	emit_data->arg_count = 1;
}
static void dp_fetch_args(
	struct lp_build_tgsi_context * bld_base,
	struct lp_build_emit_data * emit_data)
{
	struct lp_build_context * base = &bld_base->base;
	unsigned chan;
	LLVMValueRef elements[2][4];
	unsigned opcode = emit_data->inst->Instruction.Opcode;
	unsigned dp_components = (opcode == TGSI_OPCODE_DP2 ? 2 :
					(opcode == TGSI_OPCODE_DP3 ? 3 : 4));
	for (chan = 0 ; chan < dp_components; chan++) {
		elements[0][chan] = lp_build_emit_fetch(bld_base,
						emit_data->inst, 0, chan);
		elements[1][chan] = lp_build_emit_fetch(bld_base,
						emit_data->inst, 1, chan);
	}

	for ( ; chan < 4; chan++) {
		elements[0][chan] = base->zero;
		elements[1][chan] = base->zero;
	}

	 /* Fix up for DPH */
	if (opcode == TGSI_OPCODE_DPH) {
		elements[0][TGSI_CHAN_W] = base->one;
	}

	emit_data->args[0] = lp_build_gather_values(bld_base->base.gallivm,
							elements[0], 4);
	emit_data->args[1] = lp_build_gather_values(bld_base->base.gallivm,
							elements[1], 4);
	emit_data->arg_count = 2;

	emit_data->dst_type = base->elem_type;
}
Esempio n. 3
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static LLVMValueRef
emit_tex(struct lp_build_tgsi_aos_context *bld,
         const struct tgsi_full_instruction *inst,
         enum lp_build_tex_modifier modifier)
{
   unsigned target;
   unsigned unit;
   LLVMValueRef coords;
   struct lp_derivatives derivs = { {NULL}, {NULL} };

   if (!bld->sampler) {
      _debug_printf("warning: found texture instruction but no sampler generator supplied\n");
      return bld->bld_base.base.undef;
   }

   target = inst->Texture.Texture;

   coords = lp_build_emit_fetch( &bld->bld_base, inst, 0 , LP_CHAN_ALL);

   if (modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV) {
      /* probably not going to work */
      derivs.ddx[0] = lp_build_emit_fetch( &bld->bld_base, inst, 1 , LP_CHAN_ALL);
      derivs.ddy[0] = lp_build_emit_fetch( &bld->bld_base, inst, 2 , LP_CHAN_ALL);
      unit = inst->Src[3].Register.Index;
   }
   else {
      unit = inst->Src[1].Register.Index;
   }
   return bld->sampler->emit_fetch_texel(bld->sampler,
                                         &bld->bld_base.base,
                                         target, unit,
                                         coords, derivs,
                                         modifier);
}
Esempio n. 4
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static void pk2h_fetch_args(struct lp_build_tgsi_context *bld_base,
			    struct lp_build_emit_data *emit_data)
{
	emit_data->args[0] = lp_build_emit_fetch(bld_base, emit_data->inst,
						 0, TGSI_CHAN_X);
	emit_data->args[1] = lp_build_emit_fetch(bld_base, emit_data->inst,
						 0, TGSI_CHAN_Y);
}
Esempio n. 5
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static void kill_if_fetch_args(struct lp_build_tgsi_context *bld_base,
			       struct lp_build_emit_data *emit_data)
{
	const struct tgsi_full_instruction *inst = emit_data->inst;
	struct gallivm_state *gallivm = bld_base->base.gallivm;
	LLVMBuilderRef builder = gallivm->builder;
	unsigned i;
	LLVMValueRef conds[TGSI_NUM_CHANNELS];

	for (i = 0; i < TGSI_NUM_CHANNELS; i++) {
		LLVMValueRef value = lp_build_emit_fetch(bld_base, inst, 0, i);
		conds[i] = LLVMBuildFCmp(builder, LLVMRealOLT, value,
					bld_base->base.zero, "");
	}

	/* Or the conditions together */
	for (i = TGSI_NUM_CHANNELS - 1; i > 0; i--) {
		conds[i - 1] = LLVMBuildOr(builder, conds[i], conds[i - 1], "");
	}

	emit_data->dst_type = LLVMVoidTypeInContext(gallivm->context);
	emit_data->arg_count = 1;
	emit_data->args[0] = LLVMBuildSelect(builder, conds[0],
					lp_build_const_float(gallivm, -1.0f),
					bld_base->base.zero, "");
}
Esempio n. 6
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static LLVMValueRef
emit_sample(struct lp_build_tgsi_aos_context *bld,
            const struct tgsi_full_instruction *inst,
            enum lp_build_tex_modifier modifier)
{
   unsigned target;
   unsigned unit;
   LLVMValueRef coords;
   struct lp_derivatives derivs = { {NULL}, {NULL} };

   if (!bld->sampler) {
      _debug_printf("warning: found texture instruction but no sampler generator supplied\n");
      return bld->bld_base.base.undef;
   }

   coords = lp_build_emit_fetch( &bld->bld_base, inst, 0 , LP_CHAN_ALL);

   /* ignore modifiers, can't handle different sampler / sampler view, etc... */
   unit = inst->Src[1].Register.Index;
   assert(inst->Src[2].Register.Index == unit);

   target = bld->sv[unit].Resource;

   return bld->sampler->emit_fetch_texel(bld->sampler,
                                         &bld->bld_base.base,
                                         target, unit,
                                         coords, derivs,
                                         modifier);
}
Esempio n. 7
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static LLVMValueRef
emit_tex(struct lp_build_tgsi_aos_context *bld,
         const struct tgsi_full_instruction *inst,
         enum lp_build_tex_modifier modifier)
{
   unsigned target;
   unsigned unit;
   LLVMValueRef coords;
   LLVMValueRef ddx;
   LLVMValueRef ddy;

   if (!bld->sampler) {
      _debug_printf("warning: found texture instruction but no sampler generator supplied\n");
      return bld->bld_base.base.undef;
   }

   target = inst->Texture.Texture;

   coords = lp_build_emit_fetch( &bld->bld_base, inst, 0 , LP_CHAN_ALL);

   if (modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV) {
      ddx = lp_build_emit_fetch( &bld->bld_base, inst, 1 , LP_CHAN_ALL);
      ddy = lp_build_emit_fetch( &bld->bld_base, inst, 2 , LP_CHAN_ALL);
      unit = inst->Src[3].Register.Index;
   }  else {
#if 0
      ddx = lp_build_ddx( &bld->bld_base.base, coords );
      ddy = lp_build_ddy( &bld->bld_base.base, coords );
#else
      /* TODO */
      ddx = bld->bld_base.base.one;
      ddy = bld->bld_base.base.one;
#endif
      unit = inst->Src[1].Register.Index;
   }

   return bld->sampler->emit_fetch_texel(bld->sampler,
                                         &bld->bld_base.base,
                                         target, unit,
                                         coords, ddx, ddy,
                                         modifier);
}
Esempio n. 8
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static void txp_fetch_args(
	struct lp_build_tgsi_context * bld_base,
	struct lp_build_emit_data * emit_data)
{
	LLVMValueRef src_w;
	unsigned chan;
	LLVMValueRef coords[4];

	emit_data->dst_type = LLVMVectorType(bld_base->base.elem_type, 4);
	src_w = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_W);

	for (chan = 0; chan < 3; chan++ ) {
		LLVMValueRef arg = lp_build_emit_fetch(bld_base,
						emit_data->inst, 0, chan);
		coords[chan] = lp_build_emit_llvm_binary(bld_base,
					TGSI_OPCODE_DIV, arg, src_w);
	}
	coords[3] = bld_base->base.one;
	emit_data->args[0] = lp_build_gather_values(bld_base->base.gallivm,
						coords, 4);
	emit_data->arg_count = 1;
}
static void tex_fetch_args(
	struct lp_build_tgsi_context * bld_base,
	struct lp_build_emit_data * emit_data)
{
	const struct tgsi_full_instruction * inst = emit_data->inst;

	LLVMValueRef coords[5];
	unsigned chan;
	for (chan = 0; chan < 4; chan++) {
		coords[chan] = lp_build_emit_fetch(bld_base, inst, 0, chan);
	}

	if (inst->Instruction.Opcode == TGSI_OPCODE_TEX2 ||
		inst->Instruction.Opcode == TGSI_OPCODE_TXB2 ||
		inst->Instruction.Opcode == TGSI_OPCODE_TXL2) {
		/* These instructions have additional operand that should be packed
		 * into the cube coord vector by radeon_llvm_emit_prepare_cube_coords.
		 * That operand should be passed as a float value in the args array
		 * right after the coord vector. After packing it's not used anymore,
		 * that's why arg_count is not increased */
		coords[4] = lp_build_emit_fetch(bld_base, inst, 1, 0);
	}

	if ((inst->Texture.Texture == TGSI_TEXTURE_CUBE ||
	     inst->Texture.Texture == TGSI_TEXTURE_CUBE_ARRAY ||
	     inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE ||
	     inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE_ARRAY) &&
	    inst->Instruction.Opcode != TGSI_OPCODE_TXQ &&
	    inst->Instruction.Opcode != TGSI_OPCODE_TXQ_LZ) {
		radeon_llvm_emit_prepare_cube_coords(bld_base, emit_data, coords, NULL);
	}

	emit_data->arg_count = 1;
	emit_data->args[0] = lp_build_gather_values(bld_base->base.gallivm,
						coords, 4);
	emit_data->dst_type = LLVMVectorType(bld_base->base.elem_type, 4);
}
static void txd_fetch_args(
	struct lp_build_tgsi_context * bld_base,
	struct lp_build_emit_data * emit_data)
{
	const struct tgsi_full_instruction * inst = emit_data->inst;

	LLVMValueRef coords[4];
	unsigned chan, src;
	for (src = 0; src < 3; src++) {
		for (chan = 0; chan < 4; chan++)
			coords[chan] = lp_build_emit_fetch(bld_base, inst, src, chan);

		emit_data->args[src] = lp_build_gather_values(bld_base->base.gallivm,
				coords, 4);
	}
	emit_data->arg_count = 3;
	emit_data->dst_type = LLVMVectorType(bld_base->base.elem_type, 4);
}
/**
 * Emit LLVM for one TGSI instruction.
 * \param return TRUE for success, FALSE otherwise
 */
boolean
lp_emit_instruction_aos(
   struct lp_build_tgsi_aos_context *bld,
   const struct tgsi_full_instruction *inst,
   const struct tgsi_opcode_info *info,
   int *pc)
{
   LLVMValueRef src0, src1, src2;
   LLVMValueRef tmp0, tmp1;
   LLVMValueRef dst0 = NULL;

   /*
    * Stores and write masks are handled in a general fashion after the long
    * instruction opcode switch statement.
    *
    * Although not stricitly necessary, we avoid generating instructions for
    * channels which won't be stored, in cases where's that easy. For some
    * complex instructions, like texture sampling, it is more convenient to
    * assume a full writemask and then let LLVM optimization passes eliminate
    * redundant code.
    */

   (*pc)++;

   assert(info->num_dst <= 1);
   if (info->num_dst) {
      dst0 = bld->bld_base.base.undef;
   }

   switch (inst->Instruction.Opcode) {
   case TGSI_OPCODE_ARL:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      dst0 = lp_build_floor(&bld->bld_base.base, src0);
      break;

   case TGSI_OPCODE_MOV:
      dst0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      break;

   case TGSI_OPCODE_LIT:
      return FALSE;

   case TGSI_OPCODE_RCP:
   /* TGSI_OPCODE_RECIP */
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      dst0 = lp_build_rcp(&bld->bld_base.base, src0);
      break;

   case TGSI_OPCODE_RSQ:
   /* TGSI_OPCODE_RECIPSQRT */
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      tmp0 = lp_build_emit_llvm_unary(&bld->bld_base, TGSI_OPCODE_ABS, src0);
      dst0 = lp_build_rsqrt(&bld->bld_base.base, tmp0);
      break;

   case TGSI_OPCODE_EXP:
      return FALSE;

   case TGSI_OPCODE_LOG:
      return FALSE;

   case TGSI_OPCODE_MUL:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      dst0 = lp_build_mul(&bld->bld_base.base, src0, src1);
      break;

   case TGSI_OPCODE_ADD:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      dst0 = lp_build_add(&bld->bld_base.base, src0, src1);
      break;

   case TGSI_OPCODE_DP3:
   /* TGSI_OPCODE_DOT3 */
      return FALSE;

   case TGSI_OPCODE_DP4:
   /* TGSI_OPCODE_DOT4 */
      return FALSE;

   case TGSI_OPCODE_DST:
      return FALSE;

   case TGSI_OPCODE_MIN:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      dst0 = lp_build_max(&bld->bld_base.base, src0, src1);
      break;

   case TGSI_OPCODE_MAX:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      dst0 = lp_build_max(&bld->bld_base.base, src0, src1);
      break;

   case TGSI_OPCODE_SLT:
   /* TGSI_OPCODE_SETLT */
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_LESS, src0, src1);
      dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
      break;

   case TGSI_OPCODE_SGE:
   /* TGSI_OPCODE_SETGE */
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_GEQUAL, src0, src1);
      dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
      break;

   case TGSI_OPCODE_MAD:
   /* TGSI_OPCODE_MADD */
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
      tmp0 = lp_build_mul(&bld->bld_base.base, src0, src1);
      dst0 = lp_build_add(&bld->bld_base.base, tmp0, src2);
      break;

   case TGSI_OPCODE_SUB:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      dst0 = lp_build_sub(&bld->bld_base.base, src0, src1);
      break;

   case TGSI_OPCODE_LRP:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
      tmp0 = lp_build_sub(&bld->bld_base.base, src1, src2);
      tmp0 = lp_build_mul(&bld->bld_base.base, src0, tmp0);
      dst0 = lp_build_add(&bld->bld_base.base, tmp0, src2);
      break;

   case TGSI_OPCODE_CND:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
      tmp1 = lp_build_const_vec(bld->bld_base.base.gallivm, bld->bld_base.base.type, 0.5);
      tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_GREATER, src2, tmp1);
      dst0 = lp_build_select(&bld->bld_base.base, tmp0, src0, src1);
      break;

   case TGSI_OPCODE_DP2A:
      return FALSE;

   case TGSI_OPCODE_FRC:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      tmp0 = lp_build_floor(&bld->bld_base.base, src0);
      dst0 = lp_build_sub(&bld->bld_base.base, src0, tmp0);
      break;

   case TGSI_OPCODE_CLAMP:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
      tmp0 = lp_build_max(&bld->bld_base.base, src0, src1);
      dst0 = lp_build_min(&bld->bld_base.base, tmp0, src2);
      break;

   case TGSI_OPCODE_FLR:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      dst0 = lp_build_floor(&bld->bld_base.base, src0);
      break;

   case TGSI_OPCODE_ROUND:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      dst0 = lp_build_round(&bld->bld_base.base, src0);
      break;

   case TGSI_OPCODE_EX2:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      tmp0 = lp_build_swizzle_scalar_aos(&bld->bld_base.base, src0, TGSI_SWIZZLE_X, TGSI_NUM_CHANNELS);
      dst0 = lp_build_exp2(&bld->bld_base.base, tmp0);
      break;

   case TGSI_OPCODE_LG2:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      tmp0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
      dst0 = lp_build_log2(&bld->bld_base.base, tmp0);
      break;

   case TGSI_OPCODE_POW:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      src1 = swizzle_scalar_aos(bld, src1, TGSI_SWIZZLE_X);
      dst0 = lp_build_pow(&bld->bld_base.base, src0, src1);
      break;

   case TGSI_OPCODE_XPD:
      return FALSE;

   case TGSI_OPCODE_RCC:
      /* deprecated? */
      assert(0);
      return FALSE;

   case TGSI_OPCODE_DPH:
      return FALSE;

   case TGSI_OPCODE_COS:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      tmp0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
      dst0 = lp_build_cos(&bld->bld_base.base, tmp0);
      break;

   case TGSI_OPCODE_DDX:
      return FALSE;

   case TGSI_OPCODE_DDY:
      return FALSE;

   case TGSI_OPCODE_KILP:
      /* predicated kill */
      return FALSE;

   case TGSI_OPCODE_KIL:
      /* conditional kill */
      return FALSE;

   case TGSI_OPCODE_PK2H:
      return FALSE;
      break;

   case TGSI_OPCODE_PK2US:
      return FALSE;
      break;

   case TGSI_OPCODE_PK4B:
      return FALSE;
      break;

   case TGSI_OPCODE_PK4UB:
      return FALSE;

   case TGSI_OPCODE_RFL:
      return FALSE;

   case TGSI_OPCODE_SEQ:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_EQUAL, src0, src1);
      dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
      break;

   case TGSI_OPCODE_SFL:
      dst0 = bld->bld_base.base.zero;
      break;

   case TGSI_OPCODE_SGT:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_GREATER, src0, src1);
      dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
      break;

   case TGSI_OPCODE_SIN:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      tmp0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
      dst0 = lp_build_sin(&bld->bld_base.base, tmp0);
      break;

   case TGSI_OPCODE_SLE:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_LEQUAL, src0, src1);
      dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
      break;

   case TGSI_OPCODE_SNE:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_NOTEQUAL, src0, src1);
      dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
      break;

   case TGSI_OPCODE_STR:
      dst0 = bld->bld_base.base.one;
      break;

   case TGSI_OPCODE_TEX:
      dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_NONE);
      break;

   case TGSI_OPCODE_TXD:
      dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV);
      break;

   case TGSI_OPCODE_UP2H:
      /* deprecated */
      assert (0);
      return FALSE;
      break;

   case TGSI_OPCODE_UP2US:
      /* deprecated */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_UP4B:
      /* deprecated */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_UP4UB:
      /* deprecated */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_X2D:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_ARA:
      /* deprecated */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_ARR:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      dst0 = lp_build_round(&bld->bld_base.base, src0);
      break;

   case TGSI_OPCODE_BRA:
      /* deprecated */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_CAL:
      return FALSE;

   case TGSI_OPCODE_RET:
      return FALSE;

   case TGSI_OPCODE_END:
      *pc = -1;
      break;

   case TGSI_OPCODE_SSG:
   /* TGSI_OPCODE_SGN */
      tmp0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      dst0 = lp_build_sgn(&bld->bld_base.base, tmp0);
      break;

   case TGSI_OPCODE_CMP:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
      src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
      tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_LESS, src0, bld->bld_base.base.zero);
      dst0 = lp_build_select(&bld->bld_base.base, tmp0, src1, src2);
      break;

   case TGSI_OPCODE_SCS:
      return FALSE;

   case TGSI_OPCODE_TXB:
      dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_LOD_BIAS);
      break;

   case TGSI_OPCODE_NRM:
      /* fall-through */
   case TGSI_OPCODE_NRM4:
      return FALSE;

   case TGSI_OPCODE_DIV:
      /* deprecated */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_DP2:
      return FALSE;

   case TGSI_OPCODE_TXL:
      dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_EXPLICIT_LOD);
      break;

   case TGSI_OPCODE_TXP:
      dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_PROJECTED);
      break;

   case TGSI_OPCODE_BRK:
      return FALSE;

   case TGSI_OPCODE_IF:
      return FALSE;

   case TGSI_OPCODE_BGNLOOP:
      return FALSE;

   case TGSI_OPCODE_BGNSUB:
      return FALSE;

   case TGSI_OPCODE_ELSE:
      return FALSE;

   case TGSI_OPCODE_ENDIF:
      return FALSE;

   case TGSI_OPCODE_ENDLOOP:
      return FALSE;

   case TGSI_OPCODE_ENDSUB:
      return FALSE;

   case TGSI_OPCODE_PUSHA:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_POPA:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_CEIL:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      dst0 = lp_build_ceil(&bld->bld_base.base, src0);
      break;

   case TGSI_OPCODE_I2F:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_NOT:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_TRUNC:
      src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
      dst0 = lp_build_trunc(&bld->bld_base.base, src0);
      break;

   case TGSI_OPCODE_SHL:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_ISHR:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_AND:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_OR:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_MOD:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_XOR:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_SAD:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_TXF:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_TXQ:
      /* deprecated? */
      assert(0);
      return FALSE;
      break;

   case TGSI_OPCODE_CONT:
      return FALSE;

   case TGSI_OPCODE_EMIT:
      return FALSE;
      break;

   case TGSI_OPCODE_ENDPRIM:
      return FALSE;
      break;

   case TGSI_OPCODE_NOP:
      break;

   default:
      return FALSE;
   }
   
   if (info->num_dst) {
      lp_emit_store_aos(bld, inst, 0, dst0);
   }

   return TRUE;
}