llvmpipe: TGSI -> LLVM SoA IR converstion.

Based on tgsi_sse2.c.

3 files changed, 1588 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/SConscript b/src/gallium/drivers/llvmpipe/SConscript
index e3106763cb..705a8bdfd4 100644
--- a/src/gallium/drivers/llvmpipe/SConscript
+++ b/src/gallium/drivers/llvmpipe/SConscript
@@ -23,6 +23,7 @@ llvmpipe = env.ConvenienceLibrary(
 		'lp_bld_loop.c',
 		'lp_bld_logicop.c',
 		'lp_bld_swizzle.c',
+		'lp_bld_tgsi_soa.c',		
 		'lp_bld_type.c',
 		'lp_clear.c',
 		'lp_context.c',
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_tgsi.h b/src/gallium/drivers/llvmpipe/lp_bld_tgsi.h
new file mode 100644
index 0000000000..020db003c2
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_bld_tgsi.h
@@ -0,0 +1,53 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef LP_BLD_TGSI_H
+#define LP_BLD_TGSI_H
+
+#include <llvm-c/Core.h>
+
+
+struct tgsi_token;
+union lp_type;
+struct lp_build_context;
+
+void PIPE_CDECL
+lp_build_tgsi_fetch_texel_soa( struct tgsi_sampler **samplers,
+                               uint32_t unit,
+                               float *store );
+
+void
+lp_build_tgsi_soa(LLVMBuilderRef builder,
+                  const struct tgsi_token *tokens,
+                  union lp_type type,
+                  LLVMValueRef (*inputs)[4],
+                  LLVMValueRef consts_ptr,
+                  LLVMValueRef (*outputs)[4],
+                  LLVMValueRef samplers_ptr);
+
+
+#endif /* LP_BLD_TGSI_H */
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_tgsi_soa.c b/src/gallium/drivers/llvmpipe/lp_bld_tgsi_soa.c
new file mode 100644
index 0000000000..d5acafe840
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_bld_tgsi_soa.c
@@ -0,0 +1,1534 @@
+/**************************************************************************
+ * 
+ * Copyright 2009 VMware, Inc.
+ * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include "pipe/p_config.h"
+#include "pipe/p_shader_tokens.h"
+#include "util/u_debug.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "tgsi/tgsi_parse.h"
+#include "tgsi/tgsi_util.h"
+#include "tgsi/tgsi_exec.h"
+#include "lp_bld_type.h"
+#include "lp_bld_const.h"
+#include "lp_bld_intr.h"
+#include "lp_bld_arit.h"
+#include "lp_bld_swizzle.h"
+#include "lp_bld_tgsi.h"
+
+
+#define LP_MAX_TEMPS 256
+#define LP_MAX_IMMEDIATES 256
+
+
+#define FOR_EACH_CHANNEL( CHAN )\
+   for (CHAN = 0; CHAN < NUM_CHANNELS; CHAN++)
+
+#define IS_DST0_CHANNEL_ENABLED( INST, CHAN )\
+   ((INST).FullDstRegisters[0].DstRegister.WriteMask & (1 << (CHAN)))
+
+#define IF_IS_DST0_CHANNEL_ENABLED( INST, CHAN )\
+   if (IS_DST0_CHANNEL_ENABLED( INST, CHAN ))
+
+#define FOR_EACH_DST0_ENABLED_CHANNEL( INST, CHAN )\
+   FOR_EACH_CHANNEL( CHAN )\
+      IF_IS_DST0_CHANNEL_ENABLED( INST, CHAN )
+
+#define CHAN_X 0
+#define CHAN_Y 1
+#define CHAN_Z 2
+#define CHAN_W 3
+
+
+struct lp_build_tgsi_soa_context
+{
+   struct lp_build_context base;
+
+   LLVMValueRef (*inputs)[4];
+   LLVMValueRef consts_ptr;
+   LLVMValueRef (*outputs)[4];
+   LLVMValueRef samplers_ptr;
+
+   LLVMValueRef immediates[LP_MAX_IMMEDIATES][4];
+   LLVMValueRef temps[LP_MAX_TEMPS][4];
+};
+
+
+/**
+ * Function call helpers.
+ */
+
+/**
+ * NOTE: In gcc, if the destination uses the SSE intrinsics, then it must be 
+ * defined with __attribute__((force_align_arg_pointer)), as we do not guarantee
+ * that the stack pointer is 16 byte aligned, as expected.
+ */
+static void
+emit_func_call(
+   struct lp_build_tgsi_soa_context *bld,
+   const LLVMValueRef *args,
+   unsigned nr_args,
+   void (PIPE_CDECL *code)() )
+{
+#if 0
+   LLVMAddGlobalMapping(LLVMExecutionEngineRef EE, LLVMValueRef Global,
+                             void* Addr);
+#endif
+
+}
+
+
+/**
+ * Register fetch.
+ */
+
+static LLVMValueRef
+emit_fetch(
+   struct lp_build_tgsi_soa_context *bld,
+   const struct tgsi_full_src_register *reg,
+   const unsigned chan_index )
+{
+   unsigned swizzle = tgsi_util_get_full_src_register_extswizzle( reg, chan_index );
+   LLVMValueRef res;
+
+   switch (swizzle) {
+   case TGSI_EXTSWIZZLE_X:
+   case TGSI_EXTSWIZZLE_Y:
+   case TGSI_EXTSWIZZLE_Z:
+   case TGSI_EXTSWIZZLE_W:
+
+      switch (reg->SrcRegister.File) {
+      case TGSI_FILE_CONSTANT: {
+         LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), reg->SrcRegister.Index*4 + swizzle, 0);
+         LLVMValueRef scalar_ptr = LLVMBuildGEP(bld->base.builder, bld->consts_ptr, &index, 1, "");
+         LLVMValueRef scalar = LLVMBuildLoad(bld->base.builder, scalar_ptr, "");
+         res = lp_build_broadcast_scalar(&bld->base, scalar);
+         break;
+      }
+
+      case TGSI_FILE_IMMEDIATE:
+         res = bld->immediates[reg->SrcRegister.Index][swizzle];
+         assert(res);
+         break;
+
+      case TGSI_FILE_INPUT:
+         res = bld->inputs[reg->SrcRegister.Index][swizzle];
+         assert(res);
+         break;
+
+      case TGSI_FILE_TEMPORARY:
+         res = bld->temps[reg->SrcRegister.Index][swizzle];
+         if(!res)
+            return bld->base.undef;
+         break;
+
+      default:
+         assert( 0 );
+      }
+      break;
+
+   case TGSI_EXTSWIZZLE_ZERO:
+      res = bld->base.zero;
+      break;
+
+   case TGSI_EXTSWIZZLE_ONE:
+      res = bld->base.one;
+      break;
+
+   default:
+      assert( 0 );
+   }
+
+   switch( tgsi_util_get_full_src_register_sign_mode( reg, chan_index ) ) {
+   case TGSI_UTIL_SIGN_CLEAR:
+      res = lp_build_abs( &bld->base, res );
+      break;
+
+   case TGSI_UTIL_SIGN_SET:
+      res = lp_build_abs( &bld->base, res );
+      res = LLVMBuildNeg( bld->base.builder, res, "" );
+      break;
+
+   case TGSI_UTIL_SIGN_TOGGLE:
+      res = LLVMBuildNeg( bld->base.builder, res, "" );
+      break;
+
+   case TGSI_UTIL_SIGN_KEEP:
+      break;
+   }
+
+   return res;
+}
+
+#define FETCH( FUNC, INST, INDEX, CHAN )\
+   emit_fetch( FUNC, &(INST).FullSrcRegisters[INDEX], CHAN )
+
+/**
+ * Register store.
+ */
+
+static void
+emit_store(
+   struct lp_build_tgsi_soa_context *bld,
+   const struct tgsi_full_dst_register *reg,
+   const struct tgsi_full_instruction *inst,
+   unsigned chan_index,
+   LLVMValueRef value)
+{
+   switch( inst->Instruction.Saturate ) {
+   case TGSI_SAT_NONE:
+      break;
+
+   case TGSI_SAT_ZERO_ONE:
+      /* assert( 0 ); */
+      break;
+
+   case TGSI_SAT_MINUS_PLUS_ONE:
+      assert( 0 );
+      break;
+   }
+
+   switch( reg->DstRegister.File ) {
+   case TGSI_FILE_OUTPUT:
+      bld->outputs[reg->DstRegister.Index][chan_index] = value;
+      break;
+
+   case TGSI_FILE_TEMPORARY:
+      bld->temps[reg->DstRegister.Index][chan_index] = value;
+      break;
+
+   case TGSI_FILE_ADDRESS:
+      /* FIXME */
+      assert(0);
+      break;
+
+   default:
+      assert( 0 );
+   }
+}
+
+#define STORE( FUNC, INST, INDEX, CHAN, VAL )\
+   emit_store( FUNC, &(INST).FullDstRegisters[INDEX], &(INST), CHAN, VAL )
+
+
+void PIPE_CDECL
+lp_build_tgsi_fetch_texel_soa( struct tgsi_sampler **samplers,
+                               uint32_t unit,
+                               float *store )
+{
+   struct tgsi_sampler *sampler = samplers[unit];
+
+#if 0
+   uint j;
+
+   debug_printf("%s sampler: %p (%p) store: %p\n", 
+                __FUNCTION__,
+                sampler, *sampler,
+                store );
+
+   debug_printf("lodbias %f\n", store[12]);
+
+   for (j = 0; j < 4; j++)
+      debug_printf("sample %d texcoord %f %f\n", 
+                   j, 
+                   store[0+j],
+                   store[4+j]);
+#endif
+
+   {
+      float rgba[NUM_CHANNELS][QUAD_SIZE];
+      sampler->get_samples(sampler,
+                           &store[0],
+                           &store[4],
+                           &store[8],
+                           0.0f, /*store[12],  lodbias */
+                           rgba);
+      memcpy(store, rgba, sizeof rgba);
+   }
+
+#if 0
+   for (j = 0; j < 4; j++)
+      debug_printf("sample %d result %f %f %f %f\n", 
+                   j, 
+                   store[0+j],
+                   store[4+j],
+                   store[8+j],
+                   store[12+j]);
+#endif
+}
+
+/**
+ * High-level instruction translators.
+ */
+
+static void
+emit_tex( struct lp_build_tgsi_soa_context *bld,
+          const struct tgsi_full_instruction *inst,
+          boolean apply_lodbias,
+          boolean projected)
+{
+   LLVMTypeRef vec_type = lp_build_vec_type(bld->base.type);
+   const uint unit = inst->FullSrcRegisters[1].SrcRegister.Index;
+   LLVMValueRef lodbias;
+   LLVMValueRef oow;
+   LLVMValueRef store_ptr;
+   LLVMValueRef args[3];
+   unsigned count;
+   unsigned i;
+
+   switch (inst->InstructionExtTexture.Texture) {
+   case TGSI_TEXTURE_1D:
+   case TGSI_TEXTURE_SHADOW1D:
+      count = 1;
+      break;
+   case TGSI_TEXTURE_2D:
+   case TGSI_TEXTURE_RECT:
+   case TGSI_TEXTURE_SHADOW2D:
+   case TGSI_TEXTURE_SHADOWRECT:
+      count = 2;
+      break;
+   case TGSI_TEXTURE_3D:
+   case TGSI_TEXTURE_CUBE:
+      count = 3;
+      break;
+   default:
+      assert(0);
+      return;
+   }
+
+   if(apply_lodbias)
+      lodbias = FETCH( bld, *inst, 0, 3 );
+   else
+      lodbias = bld->base.zero;
+
+   store_ptr = LLVMBuildArrayAlloca(bld->base.builder,
+                                    vec_type,
+                                    LLVMConstInt(LLVMInt32Type(), 4, 0),
+                                    "store");
+
+   if (projected) {
+      oow = FETCH( bld, *inst, 0, 3 );
+      oow = lp_build_rcp(&bld->base, oow);
+   }
+
+   for (i = 0; i < count; i++) {
+      LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+      LLVMValueRef coord_ptr = LLVMBuildGEP(bld->base.builder, store_ptr, &index, 1, "");
+      LLVMValueRef coord;
+
+      coord = FETCH( bld, *inst, 0, i );
+
+      if (projected)
+         coord = lp_build_mul(&bld->base, coord, oow);
+
+      LLVMBuildStore(bld->base.builder, coord, coord_ptr);
+   }
+
+   args[0] = bld->samplers_ptr;
+   args[1] = LLVMConstInt(LLVMInt32Type(), unit, 0);
+   args[2] = store_ptr;
+
+   lp_build_intrinsic(bld->base.builder, "fetch_texel", LLVMVoidType(), args, 3);
+
+   FOR_EACH_DST0_ENABLED_CHANNEL( *inst, i ) {
+      LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+      LLVMValueRef res_ptr = LLVMBuildGEP(bld->base.builder, store_ptr, &index, 1, "");
+      LLVMValueRef res = LLVMBuildLoad(bld->base.builder, res_ptr, "");
+      STORE( bld, *inst, 0, i, res );
+   }
+}
+
+
+static void
+emit_kil(
+   struct lp_build_tgsi_soa_context *bld,
+   const struct tgsi_full_src_register *reg )
+{
+#if 0
+   unsigned uniquemask;
+   unsigned unique_count = 0;
+   unsigned chan_index;
+   unsigned i;
+
+   /* This mask stores component bits that were already tested. Note that
+    * we test if the value is less than zero, so 1.0 and 0.0 need not to be
+    * tested. */
+   uniquemask = (1 << TGSI_EXTSWIZZLE_ZERO) | (1 << TGSI_EXTSWIZZLE_ONE);
+
+   FOR_EACH_CHANNEL( chan_index ) {
+      unsigned swizzle;
+
+      /* unswizzle channel */
+      swizzle = tgsi_util_get_full_src_register_extswizzle(
+         reg,
+         chan_index );
+
+      /* check if the component has not been already tested */
+      if( !(uniquemask & (1 << swizzle)) ) {
+         uniquemask |= 1 << swizzle;
+
+         /* allocate register */
+         emit_fetch(
+            bld,
+            unique_count++,
+            reg,
+            chan_index );
+      }
+   }
+
+   x86_push(
+      bld,
+      x86_make_reg( file_REG32, reg_AX ) );
+   x86_push(
+      bld,
+      x86_make_reg( file_REG32, reg_DX ) );
+
+   for (i = 0 ; i < unique_count; i++ ) {
+      LLVMValueRef dataXMM = make_xmm(i);
+
+      sse_cmpps(
+         bld,
+         dataXMM,
+         get_temp(
+            TGSI_EXEC_TEMP_00000000_I,
+            TGSI_EXEC_TEMP_00000000_C ),
+         cc_LessThan );
+      
+      if( i == 0 ) {
+         sse_movmskps(
+            bld,
+            x86_make_reg( file_REG32, reg_AX ),
+            dataXMM );
+      }
+      else {
+         sse_movmskps(
+            bld,
+            x86_make_reg( file_REG32, reg_DX ),
+            dataXMM );
+         x86_or(
+            bld,
+            x86_make_reg( file_REG32, reg_AX ),
+            x86_make_reg( file_REG32, reg_DX ) );
+      }
+   }
+
+   x86_or(
+      bld,
+      get_temp(
+         TGSI_EXEC_TEMP_KILMASK_I,
+         TGSI_EXEC_TEMP_KILMASK_C ),
+      x86_make_reg( file_REG32, reg_AX ) );
+
+   x86_pop(
+      bld,
+      x86_make_reg( file_REG32, reg_DX ) );
+   x86_pop(
+      bld,
+      x86_make_reg( file_REG32, reg_AX ) );
+#endif
+}
+
+
+static void
+emit_kilp(
+   struct lp_build_tgsi_soa_context *bld )
+{
+   /* XXX todo / fix me */
+}
+
+
+/**
+ * Check if inst src/dest regs use indirect addressing into temporary
+ * register file.
+ */
+static boolean
+indirect_temp_reference(const struct tgsi_full_instruction *inst)
+{
+   uint i;
+   for (i = 0; i < inst->Instruction.NumSrcRegs; i++) {
+      const struct tgsi_full_src_register *reg = &inst->FullSrcRegisters[i];
+      if (reg->SrcRegister.File == TGSI_FILE_TEMPORARY &&
+          reg->SrcRegister.Indirect)
+         return TRUE;
+   }
+   for (i = 0; i < inst->Instruction.NumDstRegs; i++) {
+      const struct tgsi_full_dst_register *reg = &inst->FullDstRegisters[i];
+      if (reg->DstRegister.File == TGSI_FILE_TEMPORARY &&
+          reg->DstRegister.Indirect)
+         return TRUE;
+   }
+   return FALSE;
+}
+
+
+static int
+emit_instruction(
+   struct lp_build_tgsi_soa_context *bld,
+   struct tgsi_full_instruction *inst )
+{
+   unsigned chan_index;
+   LLVMValueRef tmp;
+
+   /* we can't handle indirect addressing into temp register file yet */
+   if (indirect_temp_reference(inst))
+      return FALSE;
+
+   switch (inst->Instruction.Opcode) {
+#if 0
+   case TGSI_OPCODE_ARL:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         emit_flr(bld, 0, 0);
+         emit_f2it( bld, 0 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+#endif
+
+   case TGSI_OPCODE_MOV:
+   case TGSI_OPCODE_SWZ:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, chan_index, FETCH( bld, *inst, 0, chan_index ) );
+      }
+      break;
+
+#if 0
+   case TGSI_OPCODE_LIT:
+      if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) ||
+          IS_DST0_CHANNEL_ENABLED( *inst, CHAN_W ) ) {
+         emit_tempf(
+            bld,
+            0,
+            TEMP_ONE_I,
+            TEMP_ONE_C);
+         if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) ) {
+            STORE( bld, *inst, 0, 0, CHAN_X );
+         }
+         if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_W ) ) {
+            STORE( bld, *inst, 0, 0, CHAN_W );
+         }
+      }
+      if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) ||
+          IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z ) ) {
+         if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) ) {
+            tmp = FETCH( bld, *inst, 0, 0, CHAN_X );
+            sse_maxps(
+               bld,
+               make_xmm( 0 ),
+               get_temp(
+                  TGSI_EXEC_TEMP_00000000_I,
+                  TGSI_EXEC_TEMP_00000000_C ) );
+            STORE( bld, *inst, 0, 0, CHAN_Y );
+         }
+         if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z ) ) {
+            /* XMM[1] = SrcReg[0].yyyy */
+            FETCH( bld, *inst, 1, 0, CHAN_Y );
+            /* XMM[1] = max(XMM[1], 0) */
+            sse_maxps(
+               bld,
+               make_xmm( 1 ),
+               get_temp(
+                  TGSI_EXEC_TEMP_00000000_I,
+                  TGSI_EXEC_TEMP_00000000_C ) );
+            /* XMM[2] = SrcReg[0].wwww */
+            FETCH( bld, *inst, 2, 0, CHAN_W );
+            /* XMM[2] = min(XMM[2], 128.0) */
+            sse_minps(
+               bld,
+               make_xmm( 2 ),
+               get_temp(
+                  TGSI_EXEC_TEMP_128_I,
+                  TGSI_EXEC_TEMP_128_C ) );
+            /* XMM[2] = max(XMM[2], -128.0) */
+            sse_maxps(
+               bld,
+               make_xmm( 2 ),
+               get_temp(
+                  TGSI_EXEC_TEMP_MINUS_128_I,
+                  TGSI_EXEC_TEMP_MINUS_128_C ) );
+            emit_pow( bld, 3, 1, 1, 2 );
+            FETCH( bld, *inst, 0, 0, CHAN_X );
+            sse_xorps(
+               bld,
+               make_xmm( 2 ),
+               make_xmm( 2 ) );
+            sse_cmpps(
+               bld,
+               make_xmm( 2 ),
+               make_xmm( 0 ),
+               cc_LessThan );
+            sse_andps(
+               bld,
+               make_xmm( 2 ),
+               make_xmm( 1 ) );
+            STORE( bld, *inst, 2, 0, CHAN_Z );
+         }
+      }
+      break;
+#endif
+
+   case TGSI_OPCODE_RCP:
+   /* TGSI_OPCODE_RECIP */
+      tmp = FETCH( bld, *inst, 0, CHAN_X );
+      tmp = lp_build_rcp(&bld->base, tmp);
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, chan_index, tmp );
+      }
+      break;
+
+   case TGSI_OPCODE_RSQ:
+   /* TGSI_OPCODE_RECIPSQRT */
+      tmp = FETCH( bld, *inst, 0, CHAN_X );
+      tmp = lp_build_abs(&bld->base, tmp);
+      tmp = lp_build_rsqrt(&bld->base, tmp);
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, chan_index, tmp );
+      }
+      break;
+
+#if 0
+   case TGSI_OPCODE_EXP:
+      if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) ||
+          IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) ||
+          IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z )) {
+         FETCH( bld, *inst, 0, 0, CHAN_X );
+         if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) ||
+             IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y )) {
+            emit_MOV( bld, 1, 0 );
+            emit_flr( bld, 2, 1 );
+            /* dst.x = ex2(floor(src.x)) */
+            if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X )) {
+               emit_MOV( bld, 2, 1 );
+               emit_ex2( bld, 3, 2 );
+               STORE( bld, *inst, 2, 0, CHAN_X );
+            }
+            /* dst.y = src.x - floor(src.x) */
+            if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y )) {
+               emit_MOV( bld, 2, 0 );
+               emit_sub( bld, 2, 1 );
+               STORE( bld, *inst, 2, 0, CHAN_Y );
+            }
+         }
+         /* dst.z = ex2(src.x) */
+         if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z )) {
+            emit_ex2( bld, 3, 0 );
+            STORE( bld, *inst, 0, 0, CHAN_Z );
+         }
+      }
+      /* dst.w = 1.0 */
+      if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_W )) {
+         emit_tempf( bld, 0, TEMP_ONE_I, TEMP_ONE_C );
+         STORE( bld, *inst, 0, 0, CHAN_W );
+      }
+      break;
+#endif
+
+#if 0
+   case TGSI_OPCODE_LOG:
+      if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) ||
+          IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) ||
+          IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z )) {
+         FETCH( bld, *inst, 0, 0, CHAN_X );
+         emit_abs( bld, 0 );
+         emit_MOV( bld, 1, 0 );
+         emit_lg2( bld, 2, 1 );
+         /* dst.z = lg2(abs(src.x)) */
+         if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z )) {
+            STORE( bld, *inst, 1, 0, CHAN_Z );
+         }
+         if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) ||
+             IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y )) {
+            emit_flr( bld, 2, 1 );
+            /* dst.x = floor(lg2(abs(src.x))) */
+            if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X )) {
+               STORE( bld, *inst, 1, 0, CHAN_X );
+            }
+            /* dst.x = abs(src)/ex2(floor(lg2(abs(src.x)))) */
+            if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y )) {
+               emit_ex2( bld, 2, 1 );
+               emit_rcp( bld, 1, 1 );
+               emit_mul( bld, 0, 1 );
+               STORE( bld, *inst, 0, 0, CHAN_Y );
+            }
+         }
+      }
+      /* dst.w = 1.0 */
+      if (IS_DST0_CHANNEL_ENABLED( *inst, CHAN_W )) {
+         emit_tempf( bld, 0, TEMP_ONE_I, TEMP_ONE_C );
+         STORE( bld, *inst, 0, 0, CHAN_W );
+      }
+      break;
+#endif
+
+   case TGSI_OPCODE_MUL:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         LLVMValueRef a = FETCH( bld, *inst, 0, chan_index );
+         LLVMValueRef b = FETCH( bld, *inst, 1, chan_index );
+         tmp = lp_build_mul(&bld->base, a, b);
+         STORE( bld, *inst, 0, chan_index, tmp );
+      }
+      break;
+
+   case TGSI_OPCODE_ADD:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         LLVMValueRef a = FETCH( bld, *inst, 0, chan_index );
+         LLVMValueRef b = FETCH( bld, *inst, 1, chan_index );
+         tmp = lp_build_add(&bld->base, a, b);
+         STORE( bld, *inst, 0, chan_index, tmp );
+      }
+      break;
+
+#if 0
+   case TGSI_OPCODE_DP3:
+   /* TGSI_OPCODE_DOT3 */
+      FETCH( bld, *inst, 0, 0, CHAN_X );
+      FETCH( bld, *inst, 1, 1, CHAN_X );
+      emit_mul( bld, 0, 1 );
+      FETCH( bld, *inst, 1, 0, CHAN_Y );
+      FETCH( bld, *inst, 2, 1, CHAN_Y );
+      emit_mul( bld, 1, 2 );
+      emit_add( bld, 0, 1 );
+      FETCH( bld, *inst, 1, 0, CHAN_Z );
+      FETCH( bld, *inst, 2, 1, CHAN_Z );
+      emit_mul( bld, 1, 2 );
+      emit_add( bld, 0, 1 );
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_DP4:
+   /* TGSI_OPCODE_DOT4 */
+      FETCH( bld, *inst, 0, 0, CHAN_X );
+      FETCH( bld, *inst, 1, 1, CHAN_X );
+      emit_mul( bld, 0, 1 );
+      FETCH( bld, *inst, 1, 0, CHAN_Y );
+      FETCH( bld, *inst, 2, 1, CHAN_Y );
+      emit_mul( bld, 1, 2 );
+      emit_add( bld, 0, 1 );
+      FETCH( bld, *inst, 1, 0, CHAN_Z );
+      FETCH( bld, *inst, 2, 1, CHAN_Z );
+      emit_mul(bld, 1, 2 );
+      emit_add(bld, 0, 1 );
+      FETCH( bld, *inst, 1, 0, CHAN_W );
+      FETCH( bld, *inst, 2, 1, CHAN_W );
+      emit_mul( bld, 1, 2 );
+      emit_add( bld, 0, 1 );
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_DST:
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) {
+         emit_tempf(
+            bld,
+            0,
+            TEMP_ONE_I,
+            TEMP_ONE_C );
+         STORE( bld, *inst, 0, 0, CHAN_X );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) {
+         FETCH( bld, *inst, 0, 0, CHAN_Y );
+         FETCH( bld, *inst, 1, 1, CHAN_Y );
+         emit_mul( bld, 0, 1 );
+         STORE( bld, *inst, 0, 0, CHAN_Y );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z ) {
+         FETCH( bld, *inst, 0, 0, CHAN_Z );
+         STORE( bld, *inst, 0, 0, CHAN_Z );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_W ) {
+         FETCH( bld, *inst, 0, 1, CHAN_W );
+         STORE( bld, *inst, 0, 0, CHAN_W );
+      }
+      break;
+
+   case TGSI_OPCODE_MIN:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         FETCH( bld, *inst, 1, 1, chan_index );
+         sse_minps(
+            bld,
+            make_xmm( 0 ),
+            make_xmm( 1 ) );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_MAX:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         FETCH( bld, *inst, 1, 1, chan_index );
+         sse_maxps(
+            bld,
+            make_xmm( 0 ),
+            make_xmm( 1 ) );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_SLT:
+   /* TGSI_OPCODE_SETLT */
+      emit_setcc( bld, inst, cc_LessThan );
+      break;
+
+   case TGSI_OPCODE_SGE:
+   /* TGSI_OPCODE_SETGE */
+      emit_setcc( bld, inst, cc_NotLessThan );
+      break;
+
+   case TGSI_OPCODE_MAD:
+   /* TGSI_OPCODE_MADD */
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         FETCH( bld, *inst, 1, 1, chan_index );
+         FETCH( bld, *inst, 2, 2, chan_index );
+         emit_mul( bld, 0, 1 );
+         emit_add( bld, 0, 2 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_SUB:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         FETCH( bld, *inst, 1, 1, chan_index );
+         emit_sub( bld, 0, 1 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_LRP:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         FETCH( bld, *inst, 1, 1, chan_index );
+         FETCH( bld, *inst, 2, 2, chan_index );
+         emit_sub( bld, 1, 2 );
+         emit_mul( bld, 0, 1 );
+         emit_add( bld, 0, 2 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_CND:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_CND0:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_DP2A:
+      FETCH( bld, *inst, 0, 0, CHAN_X );  /* xmm0 = src[0].x */
+      FETCH( bld, *inst, 1, 1, CHAN_X );  /* xmm1 = src[1].x */
+      emit_mul( bld, 0, 1 );              /* xmm0 = xmm0 * xmm1 */
+      FETCH( bld, *inst, 1, 0, CHAN_Y );  /* xmm1 = src[0].y */
+      FETCH( bld, *inst, 2, 1, CHAN_Y );  /* xmm2 = src[1].y */
+      emit_mul( bld, 1, 2 );              /* xmm1 = xmm1 * xmm2 */
+      emit_add( bld, 0, 1 );              /* xmm0 = xmm0 + xmm1 */
+      FETCH( bld, *inst, 1, 2, CHAN_X );  /* xmm1 = src[2].x */
+      emit_add( bld, 0, 1 );              /* xmm0 = xmm0 + xmm1 */
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );  /* dest[ch] = xmm0 */
+      }
+      break;
+
+   case TGSI_OPCODE_FRC:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         emit_frc( bld, 0, 0 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_CLAMP:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_FLR:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         emit_flr( bld, 0, 0 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_ROUND:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         emit_rnd( bld, 0, 0 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_EX2:
+      FETCH( bld, *inst, 0, 0, CHAN_X );
+      emit_ex2( bld, 0, 0 );
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_LG2:
+      FETCH( bld, *inst, 0, 0, CHAN_X );
+      emit_lg2( bld, 0, 0 );
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_POW:
+      FETCH( bld, *inst, 0, 0, CHAN_X );
+      FETCH( bld, *inst, 1, 1, CHAN_X );
+      emit_pow( bld, 0, 0, 0, 1 );
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_XPD:
+      if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) ||
+          IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) ) {
+         FETCH( bld, *inst, 1, 1, CHAN_Z );
+         FETCH( bld, *inst, 3, 0, CHAN_Z );
+      }
+      if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) ||
+          IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z ) ) {
+         FETCH( bld, *inst, 0, 0, CHAN_Y );
+         FETCH( bld, *inst, 4, 1, CHAN_Y );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) {
+         emit_MOV( bld, 2, 0 );
+         emit_mul( bld, 2, 1 );
+         emit_MOV( bld, 5, 3 );
+         emit_mul( bld, 5, 4 );
+         emit_sub( bld, 2, 5 );
+         STORE( bld, *inst, 2, 0, CHAN_X );
+      }
+      if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) ||
+          IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z ) ) {
+         FETCH( bld, *inst, 2, 1, CHAN_X );
+         FETCH( bld, *inst, 5, 0, CHAN_X );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) {
+         emit_mul( bld, 3, 2 );
+         emit_mul( bld, 1, 5 );
+         emit_sub( bld, 3, 1 );
+         STORE( bld, *inst, 3, 0, CHAN_Y );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z ) {
+         emit_mul( bld, 5, 4 );
+         emit_mul( bld, 0, 2 );
+         emit_sub( bld, 5, 0 );
+         STORE( bld, *inst, 5, 0, CHAN_Z );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_W ) {
+	 emit_tempf(
+	    bld,
+	    0,
+	    TEMP_ONE_I,
+	    TEMP_ONE_C );
+         STORE( bld, *inst, 0, 0, CHAN_W );
+      }
+      break;
+
+   case TGSI_OPCODE_ABS:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         emit_abs( bld, 0) ;
+
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_RCC:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_DPH:
+      FETCH( bld, *inst, 0, 0, CHAN_X );
+      FETCH( bld, *inst, 1, 1, CHAN_X );
+      emit_mul( bld, 0, 1 );
+      FETCH( bld, *inst, 1, 0, CHAN_Y );
+      FETCH( bld, *inst, 2, 1, CHAN_Y );
+      emit_mul( bld, 1, 2 );
+      emit_add( bld, 0, 1 );
+      FETCH( bld, *inst, 1, 0, CHAN_Z );
+      FETCH( bld, *inst, 2, 1, CHAN_Z );
+      emit_mul( bld, 1, 2 );
+      emit_add( bld, 0, 1 );
+      FETCH( bld, *inst, 1, 1, CHAN_W );
+      emit_add( bld, 0, 1 );
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_COS:
+      FETCH( bld, *inst, 0, 0, CHAN_X );
+      emit_cos( bld, 0, 0 );
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_DDX:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_DDY:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_KILP:
+      /* predicated kill */
+      emit_kilp( bld );
+      return 0; /* XXX fix me */
+      break;
+
+   case TGSI_OPCODE_KIL:
+      /* conditional kill */
+      emit_kil( bld, &inst->FullSrcRegisters[0] );
+      break;
+
+   case TGSI_OPCODE_PK2H:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_PK2US:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_PK4B:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_PK4UB:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_RFL:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_SEQ:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_SFL:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_SGT:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_SIN:
+      FETCH( bld, *inst, 0, 0, CHAN_X );
+      emit_sin( bld, 0, 0 );
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_SLE:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_SNE:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_STR:
+      return 0;
+      break;
+#endif
+
+   case TGSI_OPCODE_TEX:
+      emit_tex( bld, inst, FALSE, FALSE );
+      break;
+
+#if 0
+   case TGSI_OPCODE_TXD:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_UP2H:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_UP2US:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_UP4B:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_UP4UB:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_X2D:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_ARA:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_ARR:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         emit_rnd( bld, 0, 0 );
+         emit_f2it( bld, 0 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_BRA:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_CAL:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_RET:
+      emit_ret( bld );
+      break;
+#endif
+
+   case TGSI_OPCODE_END:
+      break;
+
+#if 0
+   case TGSI_OPCODE_SSG:
+   /* TGSI_OPCODE_SGN */
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         emit_sgn( bld, 0, 0 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_CMP:
+      emit_cmp (bld, inst);
+      break;
+
+   case TGSI_OPCODE_SCS:
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) {
+         FETCH( bld, *inst, 0, 0, CHAN_X );
+         emit_cos( bld, 0, 0 );
+         STORE( bld, *inst, 0, 0, CHAN_X );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) {
+         FETCH( bld, *inst, 0, 0, CHAN_X );
+         emit_sin( bld, 0, 0 );
+         STORE( bld, *inst, 0, 0, CHAN_Y );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Z ) {
+	 emit_tempf(
+	    bld,
+	    0,
+	    TGSI_EXEC_TEMP_00000000_I,
+	    TGSI_EXEC_TEMP_00000000_C );
+         STORE( bld, *inst, 0, 0, CHAN_Z );
+      }
+      IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_W ) {
+	 emit_tempf(
+	    bld,
+	    0,
+	    TEMP_ONE_I,
+	    TEMP_ONE_C );
+         STORE( bld, *inst, 0, 0, CHAN_W );
+      }
+      break;
+#endif
+
+   case TGSI_OPCODE_TXB:
+      emit_tex( bld, inst, TRUE, FALSE );
+      break;
+
+#if 0
+   case TGSI_OPCODE_NRM:
+      /* fall-through */
+   case TGSI_OPCODE_NRM4:
+      /* 3 or 4-component normalization */
+      {
+         uint dims = (inst->Instruction.Opcode == TGSI_OPCODE_NRM) ? 3 : 4;
+
+         if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_X) ||
+             IS_DST0_CHANNEL_ENABLED(*inst, CHAN_Y) ||
+             IS_DST0_CHANNEL_ENABLED(*inst, CHAN_Z) ||
+             (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_W) && dims == 4)) {
+
+            /* NOTE: Cannot use xmm regs 2/3 here (see emit_rsqrt() above). */
+
+            /* xmm4 = src.x */
+            /* xmm0 = src.x * src.x */
+            FETCH(bld, *inst, 0, 0, CHAN_X);
+            if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_X)) {
+               emit_MOV(bld, 4, 0);
+            }
+            emit_mul(bld, 0, 0);
+
+            /* xmm5 = src.y */
+            /* xmm0 = xmm0 + src.y * src.y */
+            FETCH(bld, *inst, 1, 0, CHAN_Y);
+            if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_Y)) {
+               emit_MOV(bld, 5, 1);
+            }
+            emit_mul(bld, 1, 1);
+            emit_add(bld, 0, 1);
+
+            /* xmm6 = src.z */
+            /* xmm0 = xmm0 + src.z * src.z */
+            FETCH(bld, *inst, 1, 0, CHAN_Z);
+            if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_Z)) {
+               emit_MOV(bld, 6, 1);
+            }
+            emit_mul(bld, 1, 1);
+            emit_add(bld, 0, 1);
+
+            if (dims == 4) {
+               /* xmm7 = src.w */
+               /* xmm0 = xmm0 + src.w * src.w */
+               FETCH(bld, *inst, 1, 0, CHAN_W);
+               if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_W)) {
+                  emit_MOV(bld, 7, 1);
+               }
+               emit_mul(bld, 1, 1);
+               emit_add(bld, 0, 1);
+            }
+
+            /* xmm1 = 1 / sqrt(xmm0) */
+            emit_rsqrt(bld, 1, 0);
+
+            /* dst.x = xmm1 * src.x */
+            if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_X)) {
+               emit_mul(bld, 4, 1);
+               STORE(bld, *inst, 4, 0, CHAN_X);
+            }
+
+            /* dst.y = xmm1 * src.y */
+            if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_Y)) {
+               emit_mul(bld, 5, 1);
+               STORE(bld, *inst, 5, 0, CHAN_Y);
+            }
+
+            /* dst.z = xmm1 * src.z */
+            if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_Z)) {
+               emit_mul(bld, 6, 1);
+               STORE(bld, *inst, 6, 0, CHAN_Z);
+            }
+
+            /* dst.w = xmm1 * src.w */
+            if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_X) && dims == 4) {
+               emit_mul(bld, 7, 1);
+               STORE(bld, *inst, 7, 0, CHAN_W);
+            }
+         }
+
+         /* dst0.w = 1.0 */
+         if (IS_DST0_CHANNEL_ENABLED(*inst, CHAN_W) && dims == 3) {
+            emit_tempf(bld, 0, TEMP_ONE_I, TEMP_ONE_C);
+            STORE(bld, *inst, 0, 0, CHAN_W);
+         }
+      }
+      break;
+
+   case TGSI_OPCODE_DIV:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_DP2:
+      FETCH( bld, *inst, 0, 0, CHAN_X );  /* xmm0 = src[0].x */
+      FETCH( bld, *inst, 1, 1, CHAN_X );  /* xmm1 = src[1].x */
+      emit_mul( bld, 0, 1 );              /* xmm0 = xmm0 * xmm1 */
+      FETCH( bld, *inst, 1, 0, CHAN_Y );  /* xmm1 = src[0].y */
+      FETCH( bld, *inst, 2, 1, CHAN_Y );  /* xmm2 = src[1].y */
+      emit_mul( bld, 1, 2 );              /* xmm1 = xmm1 * xmm2 */
+      emit_add( bld, 0, 1 );              /* xmm0 = xmm0 + xmm1 */
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         STORE( bld, *inst, 0, 0, chan_index );  /* dest[ch] = xmm0 */
+      }
+      break;
+#endif
+
+   case TGSI_OPCODE_TXL:
+      emit_tex( bld, inst, TRUE, FALSE );
+      break;
+
+   case TGSI_OPCODE_TXP:
+      emit_tex( bld, inst, FALSE, TRUE );
+      break;
+      
+#if 0
+   case TGSI_OPCODE_BRK:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_IF:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_LOOP:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_REP:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_ELSE:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_ENDIF:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_ENDLOOP:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_ENDREP:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_PUSHA:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_POPA:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_CEIL:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_I2F:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_NOT:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_TRUNC:
+      FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+         FETCH( bld, *inst, 0, 0, chan_index );
+         emit_f2it( bld, 0 );
+         emit_i2f( bld, 0 );
+         STORE( bld, *inst, 0, 0, chan_index );
+      }
+      break;
+
+   case TGSI_OPCODE_SHL:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_SHR:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_AND:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_OR:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_MOD:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_XOR:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_SAD:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_TXF:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_TXQ:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_CONT:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_EMIT:
+      return 0;
+      break;
+
+   case TGSI_OPCODE_ENDPRIM:
+      return 0;
+      break;
+#endif
+
+   default:
+      return 0;
+   }
+   
+   return 1;
+}
+
+static void
+emit_declaration(
+   struct lp_build_tgsi_soa_context *bld,
+   struct tgsi_full_declaration *decl )
+{
+#if 0
+   if( decl->Declaration.File == TGSI_FILE_INPUT ) {
+      unsigned first, last, mask;
+      unsigned i, j;
+      LLVMValueRef tmp;
+
+      first = decl->DeclarationRange.First;
+      last = decl->DeclarationRange.Last;
+      mask = decl->Declaration.UsageMask;
+
+      for( i = first; i <= last; i++ ) {
+         for( j = 0; j < NUM_CHANNELS; j++ ) {
+            if( mask & (1 << j) ) {
+               switch( decl->Declaration.Interpolate ) {
+               case TGSI_INTERPOLATE_CONSTANT:
+                  bld->inputs[i][j] = bld->interp_coefs[i].a0[j];
+                  break;
+
+               case TGSI_INTERPOLATE_LINEAR:
+                  tmp = bld->interp_coefs[i].a0[j];
+                  tmp = lp_build_add(&bld->base, tmp, lp_build_mul(&bld->base, bld->pos[0], bld->interp_coefs[i].dadx[j]));
+                  tmp = lp_build_add(&bld->base, tmp, lp_build_mul(&bld->base, bld->pos[1], bld->interp_coefs[i].dady[j]));
+                  bld->inputs[i][j] = tmp;
+                  break;
+
+               case TGSI_INTERPOLATE_PERSPECTIVE:
+                  tmp = bld->interp_coefs[i].a0[j];
+                  tmp = lp_build_add(&bld->base, tmp, lp_build_mul(&bld->base, bld->pos[0], bld->interp_coefs[i].dadx[j]));
+                  tmp = lp_build_add(&bld->base, tmp, lp_build_mul(&bld->base, bld->pos[1], bld->interp_coefs[i].dady[j]));
+                  tmp = lp_build_div(&bld->base, tmp, bld->pos[3]);
+                  bld->inputs[i][j] = tmp;
+                  break;
+
+               default:
+                  assert( 0 );
+		  break;
+               }
+            }
+         }
+      }
+   }
+#endif
+}
+
+/**
+ * Translate a TGSI vertex/fragment shader to SSE2 code.
+ * Slightly different things are done for vertex vs. fragment shaders.
+ *
+ * \param tokens  the TGSI input shader
+ * \param bld  the output SSE code/function
+ * \param immediates  buffer to place immediates, later passed to SSE bld
+ * \param return  1 for success, 0 if translation failed
+ */
+void
+lp_build_tgsi_soa(LLVMBuilderRef builder,
+                  const struct tgsi_token *tokens,
+                  union lp_type type,
+                  LLVMValueRef (*inputs)[4],
+                  LLVMValueRef consts_ptr,
+                  LLVMValueRef (*outputs)[4],
+                  LLVMValueRef samplers_ptr)
+{
+   struct lp_build_tgsi_soa_context bld;
+   struct tgsi_parse_context parse;
+   uint num_immediates = 0;
+   unsigned i;
+
+   /* Setup build context */
+   memset(&bld, 0, sizeof bld);
+   lp_build_context_init(&bld.base, builder, type);
+   bld.inputs = inputs;
+   bld.outputs = outputs;
+   bld.consts_ptr = consts_ptr;
+   bld.samplers_ptr = samplers_ptr;
+
+   tgsi_parse_init( &parse, tokens );
+
+   while( !tgsi_parse_end_of_tokens( &parse ) ) {
+      tgsi_parse_token( &parse );
+
+      switch( parse.FullToken.Token.Type ) {
+      case TGSI_TOKEN_TYPE_DECLARATION:
+         if (parse.FullHeader.Processor.Processor == TGSI_PROCESSOR_FRAGMENT) {
+            emit_declaration( &bld, &parse.FullToken.FullDeclaration );
+         }
+         break;
+
+      case TGSI_TOKEN_TYPE_INSTRUCTION:
+         if (!emit_instruction( &bld, &parse.FullToken.FullInstruction )) {
+	    debug_printf("failed to translate tgsi opcode %d to SSE (%s)\n", 
+			 parse.FullToken.FullInstruction.Instruction.Opcode,
+                         parse.FullHeader.Processor.Processor == TGSI_PROCESSOR_VERTEX ?
+                         "vertex shader" : "fragment shader");
+	 }
+         break;
+
+      case TGSI_TOKEN_TYPE_IMMEDIATE:
+         /* simply copy the immediate values into the next immediates[] slot */
+         {
+            const uint size = parse.FullToken.FullImmediate.Immediate.NrTokens - 1;
+            assert(size <= 4);
+            assert(num_immediates < LP_MAX_IMMEDIATES);
+            for( i = 0; i < size; ++i )
+               bld.immediates[num_immediates][i] =
+                  lp_build_const_uni(type, parse.FullToken.FullImmediate.u[i].Float);
+            for( i = size; i < 4; ++i )
+               bld.immediates[num_immediates][i] = bld.base.undef;
+            num_immediates++;
+         }
+         break;
+
+      default:
+         assert( 0 );
+      }
+   }
+
+   tgsi_parse_free( &parse );
+}
+