gallium: simplify tgsi tokens further

Drop anonymous 'Extended' fields, have every optional token named
explicitly in its parent.  Eg. there is now an Instruction.Label flag,
etc.

Drop destination modifiers and other functionality which cannot be
generated by tgsi_ureg.c, which is now the primary way of creating
shaders.

Pull source modifiers into the source register token, drop the second
negate flag.  The source register token is now full - if we need to
expand it, probably best to move all of the modifiers to a new token
and have a single flag for it.

11 files changed, 126 insertions, 574 deletions

diff --git a/src/gallium/auxiliary/tgsi/tgsi_build.c b/src/gallium/auxiliary/tgsi/tgsi_build.c
index 9791e58db3..ce9e72e8b5 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_build.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_build.c
@@ -122,7 +122,6 @@ tgsi_default_declaration( void )
    declaration.Centroid = 0;
    declaration.Invariant = 0;
    declaration.Padding = 0;
-   declaration.Extended = 0;
 
    return declaration;
 }
@@ -311,7 +310,6 @@ tgsi_default_immediate( void )
    immediate.NrTokens = 1;
    immediate.DataType = TGSI_IMM_FLOAT32;
    immediate.Padding = 0;
-   immediate.Extended = 0;
 
    return immediate;
 }
@@ -422,8 +420,9 @@ tgsi_default_instruction( void )
    instruction.Predicate = 0;
    instruction.NumDstRegs = 1;
    instruction.NumSrcRegs = 1;
+   instruction.Label = 0;
+   instruction.Texture = 0;
    instruction.Padding  = 0;
-   instruction.Extended = 0;
 
    return instruction;
 }
@@ -475,8 +474,8 @@ tgsi_default_full_instruction( void )
 
    full_instruction.Instruction = tgsi_default_instruction();
    full_instruction.InstructionPredicate = tgsi_default_instruction_predicate();
-   full_instruction.InstructionExtLabel = tgsi_default_instruction_ext_label();
-   full_instruction.InstructionExtTexture = tgsi_default_instruction_ext_texture();
+   full_instruction.InstructionLabel = tgsi_default_instruction_label();
+   full_instruction.InstructionTexture = tgsi_default_instruction_texture();
    for( i = 0;  i < TGSI_FULL_MAX_DST_REGISTERS; i++ ) {
       full_instruction.FullDstRegisters[i] = tgsi_default_full_dst_register();
    }
@@ -534,42 +533,42 @@ tgsi_build_full_instruction(
                                           header);
    }
 
-   if( tgsi_compare_instruction_ext_label(
-         full_inst->InstructionExtLabel,
-         tgsi_default_instruction_ext_label() ) ) {
-      struct tgsi_instruction_ext_label *instruction_ext_label;
+   if( tgsi_compare_instruction_label(
+         full_inst->InstructionLabel,
+         tgsi_default_instruction_label() ) ) {
+      struct tgsi_instruction_label *instruction_label;
 
       if( maxsize <= size )
          return 0;
-      instruction_ext_label =
-         (struct  tgsi_instruction_ext_label *) &tokens[size];
+      instruction_label =
+         (struct  tgsi_instruction_label *) &tokens[size];
       size++;
 
-      *instruction_ext_label = tgsi_build_instruction_ext_label(
-         full_inst->InstructionExtLabel.Label,
+      *instruction_label = tgsi_build_instruction_label(
+         full_inst->InstructionLabel.Label,
          prev_token,
          instruction,
          header );
-      prev_token = (struct tgsi_token  *) instruction_ext_label;
+      prev_token = (struct tgsi_token  *) instruction_label;
    }
 
-   if( tgsi_compare_instruction_ext_texture(
-         full_inst->InstructionExtTexture,
-         tgsi_default_instruction_ext_texture() ) ) {
-      struct tgsi_instruction_ext_texture *instruction_ext_texture;
+   if( tgsi_compare_instruction_texture(
+         full_inst->InstructionTexture,
+         tgsi_default_instruction_texture() ) ) {
+      struct tgsi_instruction_texture *instruction_texture;
 
       if( maxsize <= size )
          return 0;
-      instruction_ext_texture =
-         (struct  tgsi_instruction_ext_texture *) &tokens[size];
+      instruction_texture =
+         (struct  tgsi_instruction_texture *) &tokens[size];
       size++;
 
-      *instruction_ext_texture = tgsi_build_instruction_ext_texture(
-         full_inst->InstructionExtTexture.Texture,
+      *instruction_texture = tgsi_build_instruction_texture(
+         full_inst->InstructionTexture.Texture,
          prev_token,
          instruction,
          header   );
-      prev_token = (struct tgsi_token  *) instruction_ext_texture;
+      prev_token = (struct tgsi_token  *) instruction_texture;
    }
 
    for( i = 0;  i <   full_inst->Instruction.NumDstRegs; i++ ) {
@@ -591,25 +590,6 @@ tgsi_build_full_instruction(
          header );
       prev_token = (struct tgsi_token  *) dst_register;
 
-      if( tgsi_compare_dst_register_ext_modulate(
-            reg->DstRegisterExtModulate,
-            tgsi_default_dst_register_ext_modulate() ) ) {
-         struct tgsi_dst_register_ext_modulate *dst_register_ext_modulate;
-
-         if( maxsize <= size )
-            return 0;
-         dst_register_ext_modulate =
-            (struct  tgsi_dst_register_ext_modulate *) &tokens[size];
-         size++;
-
-         *dst_register_ext_modulate = tgsi_build_dst_register_ext_modulate(
-            reg->DstRegisterExtModulate.Modulate,
-            prev_token,
-            instruction,
-            header );
-         prev_token = (struct tgsi_token  *) dst_register_ext_modulate;
-      }
-
       if( reg->DstRegister.Indirect ) {
          struct tgsi_src_register *ind;
 
@@ -625,6 +605,7 @@ tgsi_build_full_instruction(
             reg->DstRegisterInd.SwizzleZ,
             reg->DstRegisterInd.SwizzleW,
             reg->DstRegisterInd.Negate,
+            reg->DstRegisterInd.Absolute,
             reg->DstRegisterInd.Indirect,
             reg->DstRegisterInd.Dimension,
             reg->DstRegisterInd.Index,
@@ -650,6 +631,7 @@ tgsi_build_full_instruction(
          reg->SrcRegister.SwizzleZ,
          reg->SrcRegister.SwizzleW,
          reg->SrcRegister.Negate,
+         reg->SrcRegister.Absolute,
          reg->SrcRegister.Indirect,
          reg->SrcRegister.Dimension,
          reg->SrcRegister.Index,
@@ -657,29 +639,6 @@ tgsi_build_full_instruction(
          header );
       prev_token = (struct tgsi_token  *) src_register;
 
-      if( tgsi_compare_src_register_ext_mod(
-            reg->SrcRegisterExtMod,
-            tgsi_default_src_register_ext_mod() ) ) {
-         struct tgsi_src_register_ext_mod *src_register_ext_mod;
-
-         if( maxsize <= size )
-            return 0;
-         src_register_ext_mod =
-            (struct  tgsi_src_register_ext_mod *) &tokens[size];
-         size++;
-
-         *src_register_ext_mod = tgsi_build_src_register_ext_mod(
-            reg->SrcRegisterExtMod.Complement,
-            reg->SrcRegisterExtMod.Bias,
-            reg->SrcRegisterExtMod.Scale2X,
-            reg->SrcRegisterExtMod.Absolute,
-            reg->SrcRegisterExtMod.Negate,
-            prev_token,
-            instruction,
-            header );
-         prev_token = (struct tgsi_token  *) src_register_ext_mod;
-      }
-
       if( reg->SrcRegister.Indirect ) {
          struct  tgsi_src_register *ind;
 
@@ -695,6 +654,7 @@ tgsi_build_full_instruction(
             reg->SrcRegisterInd.SwizzleZ,
             reg->SrcRegisterInd.SwizzleW,
             reg->SrcRegisterInd.Negate,
+            reg->SrcRegisterInd.Absolute,
             reg->SrcRegisterInd.Indirect,
             reg->SrcRegisterInd.Dimension,
             reg->SrcRegisterInd.Index,
@@ -733,6 +693,7 @@ tgsi_build_full_instruction(
                reg->SrcRegisterDimInd.SwizzleZ,
                reg->SrcRegisterDimInd.SwizzleW,
                reg->SrcRegisterDimInd.Negate,
+               reg->SrcRegisterDimInd.Absolute,
                reg->SrcRegisterDimInd.Indirect,
                reg->SrcRegisterDimInd.Dimension,
                reg->SrcRegisterDimInd.Index,
@@ -793,86 +754,80 @@ compare32(const void *a, const void *b)
    return *((uint32_t *) a) != *((uint32_t *) b);
 }
 
-struct tgsi_instruction_ext_label
-tgsi_default_instruction_ext_label( void )
+struct tgsi_instruction_label
+tgsi_default_instruction_label( void )
 {
-   struct tgsi_instruction_ext_label instruction_ext_label;
+   struct tgsi_instruction_label instruction_label;
 
-   instruction_ext_label.Type = TGSI_INSTRUCTION_EXT_TYPE_LABEL;
-   instruction_ext_label.Label = 0;
-   instruction_ext_label.Padding = 0;
-   instruction_ext_label.Extended = 0;
+   instruction_label.Label = 0;
+   instruction_label.Padding = 0;
 
-   return instruction_ext_label;
+   return instruction_label;
 }
 
 unsigned
-tgsi_compare_instruction_ext_label(
-   struct tgsi_instruction_ext_label a,
-   struct tgsi_instruction_ext_label b )
+tgsi_compare_instruction_label(
+   struct tgsi_instruction_label a,
+   struct tgsi_instruction_label b )
 {
    a.Padding = b.Padding = 0;
-   a.Extended = b.Extended = 0;
    return compare32(&a, &b);
 }
 
-struct tgsi_instruction_ext_label
-tgsi_build_instruction_ext_label(
+struct tgsi_instruction_label
+tgsi_build_instruction_label(
    unsigned label,
    struct tgsi_token  *prev_token,
    struct tgsi_instruction *instruction,
    struct tgsi_header *header )
 {
-   struct tgsi_instruction_ext_label instruction_ext_label;
+   struct tgsi_instruction_label instruction_label;
 
-   instruction_ext_label = tgsi_default_instruction_ext_label();
-   instruction_ext_label.Label = label;
+   instruction_label = tgsi_default_instruction_label();
+   instruction_label.Label = label;
+   instruction->Label = 1;
 
-   prev_token->Extended = 1;
    instruction_grow( instruction, header );
 
-   return instruction_ext_label;
+   return instruction_label;
 }
 
-struct tgsi_instruction_ext_texture
-tgsi_default_instruction_ext_texture( void )
+struct tgsi_instruction_texture
+tgsi_default_instruction_texture( void )
 {
-   struct tgsi_instruction_ext_texture instruction_ext_texture;
+   struct tgsi_instruction_texture instruction_texture;
 
-   instruction_ext_texture.Type = TGSI_INSTRUCTION_EXT_TYPE_TEXTURE;
-   instruction_ext_texture.Texture = TGSI_TEXTURE_UNKNOWN;
-   instruction_ext_texture.Padding = 0;
-   instruction_ext_texture.Extended = 0;
+   instruction_texture.Texture = TGSI_TEXTURE_UNKNOWN;
+   instruction_texture.Padding = 0;
 
-   return instruction_ext_texture;
+   return instruction_texture;
 }
 
 unsigned
-tgsi_compare_instruction_ext_texture(
-   struct tgsi_instruction_ext_texture a,
-   struct tgsi_instruction_ext_texture b )
+tgsi_compare_instruction_texture(
+   struct tgsi_instruction_texture a,
+   struct tgsi_instruction_texture b )
 {
    a.Padding = b.Padding = 0;
-   a.Extended = b.Extended = 0;
    return compare32(&a, &b);
 }
 
-struct tgsi_instruction_ext_texture
-tgsi_build_instruction_ext_texture(
+struct tgsi_instruction_texture
+tgsi_build_instruction_texture(
    unsigned texture,
    struct tgsi_token *prev_token,
    struct tgsi_instruction *instruction,
    struct tgsi_header *header )
 {
-   struct tgsi_instruction_ext_texture instruction_ext_texture;
+   struct tgsi_instruction_texture instruction_texture;
 
-   instruction_ext_texture = tgsi_default_instruction_ext_texture();
-   instruction_ext_texture.Texture = texture;
+   instruction_texture = tgsi_default_instruction_texture();
+   instruction_texture.Texture = texture;
+   instruction->Texture = 1;
 
-   prev_token->Extended = 1;
    instruction_grow( instruction, header );
 
-   return instruction_ext_texture;
+   return instruction_texture;
 }
 
 struct tgsi_src_register
@@ -886,10 +841,10 @@ tgsi_default_src_register( void )
    src_register.SwizzleZ = TGSI_SWIZZLE_Z;
    src_register.SwizzleW = TGSI_SWIZZLE_W;
    src_register.Negate = 0;
+   src_register.Absolute = 0;
    src_register.Indirect = 0;
    src_register.Dimension = 0;
    src_register.Index = 0;
-   src_register.Extended = 0;
 
    return src_register;
 }
@@ -902,6 +857,7 @@ tgsi_build_src_register(
    unsigned swizzle_z,
    unsigned swizzle_w,
    unsigned negate,
+   unsigned absolute,
    unsigned indirect,
    unsigned dimension,
    int index,
@@ -925,6 +881,7 @@ tgsi_build_src_register(
    src_register.SwizzleZ = swizzle_z;
    src_register.SwizzleW = swizzle_w;
    src_register.Negate = negate;
+   src_register.Absolute = absolute;
    src_register.Indirect = indirect;
    src_register.Dimension = dimension;
    src_register.Index = index;
@@ -940,7 +897,6 @@ tgsi_default_full_src_register( void )
    struct tgsi_full_src_register full_src_register;
 
    full_src_register.SrcRegister = tgsi_default_src_register();
-   full_src_register.SrcRegisterExtMod = tgsi_default_src_register_ext_mod();
    full_src_register.SrcRegisterInd = tgsi_default_src_register();
    full_src_register.SrcRegisterDim = tgsi_default_dimension();
    full_src_register.SrcRegisterDimInd = tgsi_default_src_register();
@@ -949,65 +905,6 @@ tgsi_default_full_src_register( void )
 }
 
 
-struct tgsi_src_register_ext_mod
-tgsi_default_src_register_ext_mod( void )
-{
-   struct tgsi_src_register_ext_mod src_register_ext_mod;
-
-   src_register_ext_mod.Type = TGSI_SRC_REGISTER_EXT_TYPE_MOD;
-   src_register_ext_mod.Complement = 0;
-   src_register_ext_mod.Bias = 0;
-   src_register_ext_mod.Scale2X = 0;
-   src_register_ext_mod.Absolute = 0;
-   src_register_ext_mod.Negate = 0;
-   src_register_ext_mod.Padding = 0;
-   src_register_ext_mod.Extended = 0;
-
-   return src_register_ext_mod;
-}
-
-unsigned
-tgsi_compare_src_register_ext_mod(
-   struct tgsi_src_register_ext_mod a,
-   struct tgsi_src_register_ext_mod b )
-{
-   a.Padding = b.Padding = 0;
-   a.Extended = b.Extended = 0;
-   return compare32(&a, &b);
-}
-
-struct tgsi_src_register_ext_mod
-tgsi_build_src_register_ext_mod(
-   unsigned complement,
-   unsigned bias,
-   unsigned scale_2x,
-   unsigned absolute,
-   unsigned negate,
-   struct tgsi_token *prev_token,
-   struct tgsi_instruction *instruction,
-   struct tgsi_header *header )
-{
-   struct tgsi_src_register_ext_mod src_register_ext_mod;
-
-   assert( complement <= 1 );
-   assert( bias <= 1 );
-   assert( scale_2x <= 1 );
-   assert( absolute <= 1 );
-   assert( negate <= 1 );
-
-   src_register_ext_mod = tgsi_default_src_register_ext_mod();
-   src_register_ext_mod.Complement = complement;
-   src_register_ext_mod.Bias = bias;
-   src_register_ext_mod.Scale2X = scale_2x;
-   src_register_ext_mod.Absolute = absolute;
-   src_register_ext_mod.Negate = negate;
-
-   prev_token->Extended = 1;
-   instruction_grow( instruction, header );
-
-   return src_register_ext_mod;
-}
-
 struct tgsi_dimension
 tgsi_default_dimension( void )
 {
@@ -1017,7 +914,6 @@ tgsi_default_dimension( void )
    dimension.Dimension = 0;
    dimension.Padding = 0;
    dimension.Index = 0;
-   dimension.Extended = 0;
 
    return dimension;
 }
@@ -1051,7 +947,6 @@ tgsi_default_dst_register( void )
    dst_register.Dimension = 0;
    dst_register.Index = 0;
    dst_register.Padding = 0;
-   dst_register.Extended = 0;
 
    return dst_register;
 }
@@ -1089,51 +984,7 @@ tgsi_default_full_dst_register( void )
 
    full_dst_register.DstRegister = tgsi_default_dst_register();
    full_dst_register.DstRegisterInd = tgsi_default_src_register();
-   full_dst_register.DstRegisterExtModulate =
-      tgsi_default_dst_register_ext_modulate();
 
    return full_dst_register;
 }
 
-struct tgsi_dst_register_ext_modulate
-tgsi_default_dst_register_ext_modulate( void )
-{
-   struct tgsi_dst_register_ext_modulate dst_register_ext_modulate;
-
-   dst_register_ext_modulate.Type = TGSI_DST_REGISTER_EXT_TYPE_MODULATE;
-   dst_register_ext_modulate.Modulate = TGSI_MODULATE_1X;
-   dst_register_ext_modulate.Padding = 0;
-   dst_register_ext_modulate.Extended = 0;
-
-   return dst_register_ext_modulate;
-}
-
-unsigned
-tgsi_compare_dst_register_ext_modulate(
-   struct tgsi_dst_register_ext_modulate a,
-   struct tgsi_dst_register_ext_modulate b )
-{
-   a.Padding = b.Padding = 0;
-   a.Extended = b.Extended = 0;
-   return compare32(&a, &b);
-}
-
-struct tgsi_dst_register_ext_modulate
-tgsi_build_dst_register_ext_modulate(
-   unsigned modulate,
-   struct tgsi_token *prev_token,
-   struct tgsi_instruction *instruction,
-   struct tgsi_header *header )
-{
-   struct tgsi_dst_register_ext_modulate dst_register_ext_modulate;
-
-   assert( modulate <= TGSI_MODULATE_EIGHTH );
-
-   dst_register_ext_modulate = tgsi_default_dst_register_ext_modulate();
-   dst_register_ext_modulate.Modulate = modulate;
-
-   prev_token->Extended = 1;
-   instruction_grow( instruction, header );
-
-   return dst_register_ext_modulate;
-}
diff --git a/src/gallium/auxiliary/tgsi/tgsi_build.h b/src/gallium/auxiliary/tgsi/tgsi_build.h
index 0fe5f229d3..0fbc8b1b0a 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_build.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_build.h
@@ -171,31 +171,31 @@ tgsi_build_instruction_predicate(int index,
                                  struct tgsi_instruction *instruction,
                                  struct tgsi_header *header);
 
-struct tgsi_instruction_ext_label
-tgsi_default_instruction_ext_label( void );
+struct tgsi_instruction_label
+tgsi_default_instruction_label( void );
 
 unsigned
-tgsi_compare_instruction_ext_label(
-   struct tgsi_instruction_ext_label a,
-   struct tgsi_instruction_ext_label b );
+tgsi_compare_instruction_label(
+   struct tgsi_instruction_label a,
+   struct tgsi_instruction_label b );
 
-struct tgsi_instruction_ext_label
-tgsi_build_instruction_ext_label(
+struct tgsi_instruction_label
+tgsi_build_instruction_label(
    unsigned label,
    struct tgsi_token *prev_token,
    struct tgsi_instruction *instruction,
    struct tgsi_header *header );
 
-struct tgsi_instruction_ext_texture
-tgsi_default_instruction_ext_texture( void );
+struct tgsi_instruction_texture
+tgsi_default_instruction_texture( void );
 
 unsigned
-tgsi_compare_instruction_ext_texture(
-   struct tgsi_instruction_ext_texture a,
-   struct tgsi_instruction_ext_texture b );
+tgsi_compare_instruction_texture(
+   struct tgsi_instruction_texture a,
+   struct tgsi_instruction_texture b );
 
-struct tgsi_instruction_ext_texture
-tgsi_build_instruction_ext_texture(
+struct tgsi_instruction_texture
+tgsi_build_instruction_texture(
    unsigned texture,
    struct tgsi_token *prev_token,
    struct tgsi_instruction *instruction,
@@ -212,6 +212,7 @@ tgsi_build_src_register(
    unsigned swizzle_z,
    unsigned swizzle_w,
    unsigned negate,
+   unsigned absolute,
    unsigned indirect,
    unsigned dimension,
    int index,
@@ -221,24 +222,6 @@ tgsi_build_src_register(
 struct tgsi_full_src_register
 tgsi_default_full_src_register( void );
 
-struct tgsi_src_register_ext_mod
-tgsi_default_src_register_ext_mod( void );
-
-unsigned
-tgsi_compare_src_register_ext_mod(
-   struct tgsi_src_register_ext_mod a,
-   struct tgsi_src_register_ext_mod b );
-
-struct tgsi_src_register_ext_mod
-tgsi_build_src_register_ext_mod(
-   unsigned complement,
-   unsigned bias,
-   unsigned scale_2x,
-   unsigned absolute,
-   unsigned negate,
-   struct tgsi_token *prev_token,
-   struct tgsi_instruction *instruction,
-   struct tgsi_header *header );
 
 struct tgsi_dimension
 tgsi_default_dimension( void );
@@ -265,20 +248,6 @@ tgsi_build_dst_register(
 struct tgsi_full_dst_register
 tgsi_default_full_dst_register( void );
 
-struct tgsi_dst_register_ext_modulate
-tgsi_default_dst_register_ext_modulate( void );
-
-unsigned
-tgsi_compare_dst_register_ext_modulate(
-   struct tgsi_dst_register_ext_modulate a,
-   struct tgsi_dst_register_ext_modulate b );
-
-struct tgsi_dst_register_ext_modulate
-tgsi_build_dst_register_ext_modulate(
-   unsigned modulate,
-   struct tgsi_token *prev_token,
-   struct tgsi_instruction *instruction,
-   struct tgsi_header *header );
 
 #if defined __cplusplus
 }
diff --git a/src/gallium/auxiliary/tgsi/tgsi_dump.c b/src/gallium/auxiliary/tgsi/tgsi_dump.c
index d16e64f9c5..7eb64167fb 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_dump.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_dump.c
@@ -150,17 +150,6 @@ static const char *texture_names[] =
 };
 
 
-static const char *modulate_names[TGSI_MODULATE_COUNT] =
-{
-   "",
-   "_2X",
-   "_4X",
-   "_8X",
-   "_D2",
-   "_D4",
-   "_D8"
-};
-
 static void
 _dump_register(
    struct dump_ctx *ctx,
@@ -385,7 +374,6 @@ iter_instruction(
             dst->DstRegister.Index,
             dst->DstRegister.Index );
       }
-      ENM( dst->DstRegisterExtModulate.Modulate, modulate_names );
       _dump_writemask( ctx, dst->DstRegister.WriteMask );
 
       first_reg = FALSE;
@@ -398,18 +386,10 @@ iter_instruction(
          CHR( ',' );
       CHR( ' ' );
 
-      if (src->SrcRegisterExtMod.Negate)
+      if (src->SrcRegister.Negate)
          TXT( "-(" );
-      if (src->SrcRegisterExtMod.Absolute)
+      if (src->SrcRegister.Absolute)
          CHR( '|' );
-      if (src->SrcRegisterExtMod.Scale2X)
-         TXT( "2*(" );
-      if (src->SrcRegisterExtMod.Bias)
-         CHR( '(' );
-      if (src->SrcRegisterExtMod.Complement)
-         TXT( "1-(" );
-      if (src->SrcRegister.Negate)
-         CHR( '-' );
 
       if (src->SrcRegister.Indirect) {
          _dump_register_ind(
@@ -439,23 +419,17 @@ iter_instruction(
          ENM( src->SrcRegister.SwizzleW, swizzle_names );
       }
 
-      if (src->SrcRegisterExtMod.Complement)
-         CHR( ')' );
-      if (src->SrcRegisterExtMod.Bias)
-         TXT( ")-.5" );
-      if (src->SrcRegisterExtMod.Scale2X)
-         CHR( ')' );
-      if (src->SrcRegisterExtMod.Absolute)
+      if (src->SrcRegister.Absolute)
          CHR( '|' );
-      if (src->SrcRegisterExtMod.Negate)
+      if (src->SrcRegister.Negate)
          CHR( ')' );
 
       first_reg = FALSE;
    }
 
-   if (inst->InstructionExtTexture.Texture != TGSI_TEXTURE_UNKNOWN) {
+   if (inst->Instruction.Texture) {
       TXT( ", " );
-      ENM( inst->InstructionExtTexture.Texture, texture_names );
+      ENM( inst->InstructionTexture.Texture, texture_names );
    }
 
    switch (inst->Instruction.Opcode) {
@@ -465,7 +439,7 @@ iter_instruction(
    case TGSI_OPCODE_ENDLOOP:
    case TGSI_OPCODE_CAL:
       TXT( " :" );
-      UID( inst->InstructionExtLabel.Label );
+      UID( inst->InstructionLabel.Label );
       break;
    }
 
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index 89740cee89..61d38e57f1 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -1397,10 +1397,6 @@ fetch_source(
    case TGSI_UTIL_SIGN_KEEP:
       break;
    }
-
-   if (reg->SrcRegisterExtMod.Complement) {
-      micro_sub( chan, &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C], chan );
-   }
 }
 
 static void
@@ -1679,7 +1675,7 @@ exec_tex(struct tgsi_exec_machine *mach,
 
    /*   debug_printf("Sampler %u unit %u\n", sampler, unit); */
 
-   switch (inst->InstructionExtTexture.Texture) {
+   switch (inst->InstructionTexture.Texture) {
    case TGSI_TEXTURE_1D:
    case TGSI_TEXTURE_SHADOW1D:
 
@@ -1777,7 +1773,7 @@ exec_txd(struct tgsi_exec_machine *mach,
     * XXX: This is fake TXD -- the derivatives are not taken into account, yet.
     */
 
-   switch (inst->InstructionExtTexture.Texture) {
+   switch (inst->InstructionTexture.Texture) {
    case TGSI_TEXTURE_1D:
    case TGSI_TEXTURE_SHADOW1D:
 
@@ -2744,7 +2740,7 @@ exec_instruction(
          mach->FuncStack[mach->FuncStackTop++] = mach->FuncMask;
 
          /* Finally, jump to the subroutine */
-         *pc = inst->InstructionExtLabel.Label;
+         *pc = inst->InstructionLabel.Label;
       }
       break;
 
diff --git a/src/gallium/auxiliary/tgsi/tgsi_parse.c b/src/gallium/auxiliary/tgsi/tgsi_parse.c
index 9ca2993452..853485b48b 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_parse.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_parse.c
@@ -28,7 +28,6 @@
 #include "util/u_debug.h"
 #include "pipe/p_shader_tokens.h"
 #include "tgsi_parse.h"
-#include "tgsi_build.h"
 #include "util/u_memory.h"
 
 void
@@ -59,7 +58,7 @@ tgsi_parse_init(
       ctx->FullHeader.Processor = *(struct tgsi_processor *) &tokens[2];
    }
    else {
-      ctx->FullHeader.Processor = tgsi_default_processor();
+      return TGSI_PARSE_ERROR;
    }
 
    ctx->Tokens = tokens;
@@ -129,7 +128,7 @@ tgsi_parse_token(
    {
       struct tgsi_full_declaration *decl = &ctx->FullToken.FullDeclaration;
 
-      *decl = tgsi_default_full_declaration();
+      memset(decl, 0, sizeof *decl);
       copy_token(&decl->Declaration, &token);
 
       next_token( ctx, &decl->DeclarationRange );
@@ -145,9 +144,8 @@ tgsi_parse_token(
    {
       struct tgsi_full_immediate *imm = &ctx->FullToken.FullImmediate;
 
-      *imm = tgsi_default_full_immediate();
+      memset(imm, 0, sizeof *imm);
       copy_token(&imm->Immediate, &token);
-      assert( !imm->Immediate.Extended );
 
       switch (imm->Immediate.DataType) {
       case TGSI_IMM_FLOAT32:
@@ -169,41 +167,25 @@ tgsi_parse_token(
    case TGSI_TOKEN_TYPE_INSTRUCTION:
    {
       struct tgsi_full_instruction *inst = &ctx->FullToken.FullInstruction;
-      unsigned extended;
 
-      *inst = tgsi_default_full_instruction();
+      memset(inst, 0, sizeof *inst);
       copy_token(&inst->Instruction, &token);
-      extended = inst->Instruction.Extended;
 
       if (inst->Instruction.Predicate) {
          next_token(ctx, &inst->InstructionPredicate);
       }
 
-      while( extended ) {
-         struct tgsi_src_register_ext token;
-
-         next_token( ctx, &token );
-
-         switch( token.Type ) {
-         case TGSI_INSTRUCTION_EXT_TYPE_LABEL:
-            copy_token(&inst->InstructionExtLabel, &token);
-            break;
-
-         case TGSI_INSTRUCTION_EXT_TYPE_TEXTURE:
-            copy_token(&inst->InstructionExtTexture, &token);
-            break;
-
-         default:
-            assert( 0 );
-         }
+      if (inst->Instruction.Label) {
+         next_token( ctx, &inst->InstructionLabel);
+      }
 
-         extended = token.Extended;
+      if (inst->Instruction.Texture) {
+         next_token( ctx, &inst->InstructionTexture);
       }
 
       assert( inst->Instruction.NumDstRegs <= TGSI_FULL_MAX_DST_REGISTERS );
 
       for(  i = 0; i < inst->Instruction.NumDstRegs; i++ ) {
-         unsigned extended;
 
          next_token( ctx, &inst->FullDstRegisters[i].DstRegister );
 
@@ -212,65 +194,23 @@ tgsi_parse_token(
           */
          assert( !inst->FullDstRegisters[i].DstRegister.Dimension );
 
-         extended = inst->FullDstRegisters[i].DstRegister.Extended;
-
-         while( extended ) {
-            struct tgsi_src_register_ext token;
-
-            next_token( ctx, &token );
-
-            switch( token.Type ) {
-            case TGSI_DST_REGISTER_EXT_TYPE_MODULATE:
-               copy_token(&inst->FullDstRegisters[i].DstRegisterExtModulate,
-                          &token);
-               break;
-
-            default:
-               assert( 0 );
-            }
-
-            extended = token.Extended;
-         }
-
          if( inst->FullDstRegisters[i].DstRegister.Indirect ) {
             next_token( ctx, &inst->FullDstRegisters[i].DstRegisterInd );
 
             /*
              * No support for indirect or multi-dimensional addressing.
              */
-            assert( !inst->FullDstRegisters[i].DstRegisterInd.Indirect );
             assert( !inst->FullDstRegisters[i].DstRegisterInd.Dimension );
-            assert( !inst->FullDstRegisters[i].DstRegisterInd.Extended );
+            assert( !inst->FullDstRegisters[i].DstRegisterInd.Indirect );
          }
       }
 
       assert( inst->Instruction.NumSrcRegs <= TGSI_FULL_MAX_SRC_REGISTERS );
 
       for( i = 0; i < inst->Instruction.NumSrcRegs; i++ ) {
-         unsigned extended;
 
          next_token( ctx, &inst->FullSrcRegisters[i].SrcRegister );
 
-         extended = inst->FullSrcRegisters[i].SrcRegister.Extended;
-
-         while( extended ) {
-            struct tgsi_src_register_ext token;
-
-            next_token( ctx, &token );
-
-            switch( token.Type ) {
-            case TGSI_SRC_REGISTER_EXT_TYPE_MOD:
-               copy_token(&inst->FullSrcRegisters[i].SrcRegisterExtMod,
-                          &token);
-               break;
-
-            default:
-               assert( 0 );
-            }
-
-            extended = token.Extended;
-         }
-
          if( inst->FullSrcRegisters[i].SrcRegister.Indirect ) {
             next_token( ctx, &inst->FullSrcRegisters[i].SrcRegisterInd );
 
@@ -279,7 +219,6 @@ tgsi_parse_token(
              */
             assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Indirect );
             assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Dimension );
-            assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Extended );
          }
 
          if( inst->FullSrcRegisters[i].SrcRegister.Dimension ) {
@@ -289,7 +228,6 @@ tgsi_parse_token(
              * No support for multi-dimensional addressing.
              */
             assert( !inst->FullSrcRegisters[i].SrcRegisterDim.Dimension );
-            assert( !inst->FullSrcRegisters[i].SrcRegisterDim.Extended );
 
             if( inst->FullSrcRegisters[i].SrcRegisterDim.Indirect ) {
                next_token( ctx, &inst->FullSrcRegisters[i].SrcRegisterDimInd );
@@ -299,7 +237,6 @@ tgsi_parse_token(
                */
                assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Indirect );
                assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Dimension );
-               assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Extended );
             }
          }
       }
diff --git a/src/gallium/auxiliary/tgsi/tgsi_parse.h b/src/gallium/auxiliary/tgsi/tgsi_parse.h
index cb4772ade8..ba9578c6a5 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_parse.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_parse.h
@@ -49,13 +49,11 @@ struct tgsi_full_dst_register
 {
    struct tgsi_dst_register               DstRegister;
    struct tgsi_src_register               DstRegisterInd;
-   struct tgsi_dst_register_ext_modulate  DstRegisterExtModulate;
 };
 
 struct tgsi_full_src_register
 {
    struct tgsi_src_register         SrcRegister;
-   struct tgsi_src_register_ext_mod SrcRegisterExtMod;
    struct tgsi_src_register         SrcRegisterInd;
    struct tgsi_dimension            SrcRegisterDim;
    struct tgsi_src_register         SrcRegisterDimInd;
@@ -81,8 +79,8 @@ struct tgsi_full_instruction
 {
    struct tgsi_instruction             Instruction;
    struct tgsi_instruction_predicate   InstructionPredicate;
-   struct tgsi_instruction_ext_label   InstructionExtLabel;
-   struct tgsi_instruction_ext_texture InstructionExtTexture;
+   struct tgsi_instruction_label       InstructionLabel;
+   struct tgsi_instruction_texture     InstructionTexture;
    struct tgsi_full_dst_register       FullDstRegisters[TGSI_FULL_MAX_DST_REGISTERS];
    struct tgsi_full_src_register       FullSrcRegisters[TGSI_FULL_MAX_SRC_REGISTERS];
    uint Flags;  /**< user-defined usage */
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index f9c16f1b6c..55595539ec 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -35,7 +35,6 @@
 
 
 #include "util/u_math.h"
-#include "tgsi/tgsi_build.h"
 #include "tgsi/tgsi_parse.h"
 #include "tgsi/tgsi_scan.h"
 
@@ -217,11 +216,7 @@ tgsi_is_passthrough_shader(const struct tgsi_token *tokens)
                 src->SrcRegister.Index != dst->DstRegister.Index ||
 
                 src->SrcRegister.Negate ||
-                src->SrcRegisterExtMod.Negate ||
-                src->SrcRegisterExtMod.Absolute ||
-                src->SrcRegisterExtMod.Scale2X ||
-                src->SrcRegisterExtMod.Bias ||
-                src->SrcRegisterExtMod.Complement ||
+                src->SrcRegister.Absolute ||
 
                 src->SrcRegister.SwizzleX != TGSI_SWIZZLE_X ||
                 src->SrcRegister.SwizzleY != TGSI_SWIZZLE_Y ||
diff --git a/src/gallium/auxiliary/tgsi/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
index a96fc94c7a..a6cc3a5398 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
@@ -1464,7 +1464,8 @@ emit_tex( struct x86_function *func,
    unsigned count;
    unsigned i;
 
-   switch (inst->InstructionExtTexture.Texture) {
+   assert(inst->Instruction.Texture);
+   switch (inst->InstructionTexture.Texture) {
    case TGSI_TEXTURE_1D:
       count = 1;
       break;
diff --git a/src/gallium/auxiliary/tgsi/tgsi_text.c b/src/gallium/auxiliary/tgsi/tgsi_text.c
index d2b03ffb2f..7250f98cc9 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_text.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_text.c
@@ -486,16 +486,6 @@ parse_register_dcl(
    return TRUE;
 }
 
-static const char *modulate_names[TGSI_MODULATE_COUNT] =
-{
-   "_1X",
-   "_2X",
-   "_4X",
-   "_8X",
-   "_D2",
-   "_D4",
-   "_D8"
-};
 
 static boolean
 parse_dst_operand(
@@ -512,19 +502,6 @@ parse_dst_operand(
 
    cur = ctx->cur;
    eat_opt_white( &cur );
-   if (*cur == '_') {
-      uint i;
-
-      for (i = 0; i < TGSI_MODULATE_COUNT; i++) {
-         if (str_match_no_case( &cur, modulate_names[i] )) {
-            if (!is_digit_alpha_underscore( cur )) {
-               dst->DstRegisterExtModulate.Modulate = i;
-               ctx->cur = cur;
-               break;
-            }
-         }
-      }
-   }
 
    if (!parse_opt_writemask( ctx, &writemask ))
       return FALSE;
@@ -577,92 +554,24 @@ parse_src_operand(
    struct translate_ctx *ctx,
    struct tgsi_full_src_register *src )
 {
-   const char *cur;
-   float value;
    uint file;
    int index;
    uint ind_file;
    int ind_index;
    uint ind_comp;
    uint swizzle[4];
-   boolean parsed_ext_negate_paren = FALSE;
    boolean parsed_swizzle;
 
    if (*ctx->cur == '-') {
-      cur = ctx->cur;
-      cur++;
-      eat_opt_white( &cur );
-      if (*cur == '(') {
-         cur++;
-         src->SrcRegisterExtMod.Negate = 1;
-         eat_opt_white( &cur );
-         ctx->cur = cur;
-         parsed_ext_negate_paren = TRUE;
-      }
-      else if (*cur == '|') {
-         cur++;
-         src->SrcRegisterExtMod.Negate = 1;
-         src->SrcRegisterExtMod.Absolute = 1;
-         eat_opt_white(&cur);
-         ctx->cur = cur;
-      }
-   }
-   else if (*ctx->cur == '|') {
-      ctx->cur++;
-      eat_opt_white( &ctx->cur );
-      src->SrcRegisterExtMod.Absolute = 1;
-   }
-
-   if (*ctx->cur == '-') {
       ctx->cur++;
       eat_opt_white( &ctx->cur );
       src->SrcRegister.Negate = 1;
    }
-
-   cur = ctx->cur;
-   if (parse_float( &cur, &value )) {
-      if (value == 2.0f) {
-         eat_opt_white( &cur );
-         if (*cur != '*') {
-            report_error( ctx, "Expected `*'" );
-            return FALSE;
-         }
-         cur++;
-         if (*cur != '(') {
-            report_error( ctx, "Expected `('" );
-            return FALSE;
-         }
-         cur++;
-         src->SrcRegisterExtMod.Scale2X = 1;
-         eat_opt_white( &cur );
-         ctx->cur = cur;
-      }
-   }
-
-   if (*ctx->cur == '(') {
+   
+   if (*ctx->cur == '|') {
       ctx->cur++;
       eat_opt_white( &ctx->cur );
-      src->SrcRegisterExtMod.Bias = 1;
-   }
-
-   cur = ctx->cur;
-   if (parse_float( &cur, &value )) {
-      if (value == 1.0f) {
-         eat_opt_white( &cur );
-         if (*cur != '-') {
-            report_error( ctx, "Expected `-'" );
-            return FALSE;
-         }
-         cur++;
-         if (*cur != '(') {
-            report_error( ctx, "Expected `('" );
-            return FALSE;
-         }
-         cur++;
-         src->SrcRegisterExtMod.Complement = 1;
-         eat_opt_white( &cur );
-         ctx->cur = cur;
-      }
+      src->SrcRegister.Absolute = 1;
    }
 
    if (!parse_register_src(ctx, &file, &index, &ind_file, &ind_index, &ind_comp))
@@ -690,49 +599,7 @@ parse_src_operand(
       }
    }
 
-   if (src->SrcRegisterExtMod.Complement) {
-      eat_opt_white( &ctx->cur );
-      if (*ctx->cur != ')') {
-         report_error( ctx, "Expected `)'" );
-         return FALSE;
-      }
-      ctx->cur++;
-   }
-
-   if (src->SrcRegisterExtMod.Bias) {
-      eat_opt_white( &ctx->cur );
-      if (*ctx->cur != ')') {
-         report_error( ctx, "Expected `)'" );
-         return FALSE;
-      }
-      ctx->cur++;
-      eat_opt_white( &ctx->cur );
-      if (*ctx->cur != '-') {
-         report_error( ctx, "Expected `-'" );
-         return FALSE;
-      }
-      ctx->cur++;
-      eat_opt_white( &ctx->cur );
-      if (!parse_float( &ctx->cur, &value )) {
-         report_error( ctx, "Expected literal floating point" );
-         return FALSE;
-      }
-      if (value != 0.5f) {
-         report_error( ctx, "Expected 0.5" );
-         return FALSE;
-      }
-   }
-
-   if (src->SrcRegisterExtMod.Scale2X) {
-      eat_opt_white( &ctx->cur );
-      if (*ctx->cur != ')') {
-         report_error( ctx, "Expected `)'" );
-         return FALSE;
-      }
-      ctx->cur++;
-   }
-
-   if (src->SrcRegisterExtMod.Absolute) {
+   if (src->SrcRegister.Absolute) {
       eat_opt_white( &ctx->cur );
       if (*ctx->cur != '|') {
          report_error( ctx, "Expected `|'" );
@@ -741,14 +608,6 @@ parse_src_operand(
       ctx->cur++;
    }
 
-   if (parsed_ext_negate_paren) {
-      eat_opt_white( &ctx->cur );
-      if (*ctx->cur != ')') {
-         report_error( ctx, "Expected `)'" );
-         return FALSE;
-      }
-      ctx->cur++;
-   }
 
    return TRUE;
 }
@@ -853,7 +712,8 @@ parse_instruction(
          for (j = 0; j < TGSI_TEXTURE_COUNT; j++) {
             if (str_match_no_case( &ctx->cur, texture_names[j] )) {
                if (!is_digit_alpha_underscore( ctx->cur )) {
-                  inst.InstructionExtTexture.Texture = j;
+                  inst.Instruction.Texture = 1;
+                  inst.InstructionTexture.Texture = j;
                   break;
                }
             }
@@ -879,7 +739,8 @@ parse_instruction(
          report_error( ctx, "Expected a label" );
          return FALSE;
       }
-      inst.InstructionExtLabel.Label = target;
+      inst.Instruction.Label = 1;
+      inst.InstructionLabel.Label = target;
    }
 
    advance = tgsi_build_full_instruction(
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.c b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
index 5526a5d034..de4bc6edb0 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
@@ -48,13 +48,11 @@ union tgsi_any_token {
    union  tgsi_immediate_data imm_data;
    struct tgsi_instruction insn;
    struct tgsi_instruction_predicate insn_predicate;
-   struct tgsi_instruction_ext_label insn_ext_label;
-   struct tgsi_instruction_ext_texture insn_ext_texture;
+   struct tgsi_instruction_label insn_label;
+   struct tgsi_instruction_texture insn_texture;
    struct tgsi_src_register src;
-   struct tgsi_src_register_ext_mod src_ext_mod;
    struct tgsi_dimension dim;
    struct tgsi_dst_register dst;
-   struct tgsi_dst_register_ext_modulate dst_ext_mod;
    unsigned value;
 };
 
@@ -575,17 +573,8 @@ ureg_emit_src( struct ureg_program *ureg,
    out[n].src.SwizzleW = src.SwizzleW;
    out[n].src.Index = src.Index;
    out[n].src.Negate = src.Negate;
+   out[0].src.Absolute = src.Absolute;
    n++;
-   
-   if (src.Absolute) {
-      out[0].src.Extended = 1;
-      out[0].src.Negate = 0;
-      out[n].value = 0;
-      out[n].src_ext_mod.Type = TGSI_SRC_REGISTER_EXT_TYPE_MOD;
-      out[n].src_ext_mod.Absolute = 1;
-      out[n].src_ext_mod.Negate = src.Negate;
-      n++;
-   }
 
    if (src.Indirect) {
       out[0].src.Indirect = 1;
@@ -712,13 +701,11 @@ ureg_emit_label(struct ureg_program *ureg,
       return;
 
    out = get_tokens( ureg, DOMAIN_INSN, 1 );
-   insn = retrieve_token( ureg, DOMAIN_INSN, extended_token );
+   out[0].value = 0;
 
-   insn->token.Extended = 1;
+   insn = retrieve_token( ureg, DOMAIN_INSN, extended_token );
+   insn->insn.Label = 1;
 
-   out[0].value = 0;
-   out[0].insn_ext_label.Type = TGSI_INSTRUCTION_EXT_TYPE_LABEL;
-   
    *label_token = ureg->domain[DOMAIN_INSN].count - 1;
 }
 
@@ -741,8 +728,7 @@ ureg_fixup_label(struct ureg_program *ureg,
 {
    union tgsi_any_token *out = retrieve_token( ureg, DOMAIN_INSN, label_token );
 
-   assert(out->insn_ext_label.Type == TGSI_INSTRUCTION_EXT_TYPE_LABEL);
-   out->insn_ext_label.Label = instruction_number;
+   out->insn_label.Label = instruction_number;
 }
 
 
@@ -756,11 +742,10 @@ ureg_emit_texture(struct ureg_program *ureg,
    out = get_tokens( ureg, DOMAIN_INSN, 1 );
    insn = retrieve_token( ureg, DOMAIN_INSN, extended_token );
 
-   insn->token.Extended = 1;
+   insn->insn.Texture = 1;
 
    out[0].value = 0;
-   out[0].insn_ext_texture.Type = TGSI_INSTRUCTION_EXT_TYPE_TEXTURE;
-   out[0].insn_ext_texture.Texture = target;
+   out[0].insn_texture.Texture = target;
 }
 
 
@@ -961,7 +946,6 @@ static void emit_immediate( struct ureg_program *ureg,
    out[0].imm.NrTokens = 5;
    out[0].imm.DataType = TGSI_IMM_FLOAT32;
    out[0].imm.Padding = 0;
-   out[0].imm.Extended = 0;
 
    out[1].imm_data.Float = v[0];
    out[2].imm_data.Float = v[1];
diff --git a/src/gallium/auxiliary/tgsi/tgsi_util.c b/src/gallium/auxiliary/tgsi/tgsi_util.c
index 4dee1be9e8..3544011b47 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_util.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_util.c
@@ -111,10 +111,10 @@ tgsi_util_get_full_src_register_sign_mode(
 {
    unsigned sign_mode;
 
-   if( reg->SrcRegisterExtMod.Absolute ) {
+   if( reg->SrcRegister.Absolute ) {
       /* Consider only the post-abs negation. */
 
-      if( reg->SrcRegisterExtMod.Negate ) {
+      if( reg->SrcRegister.Negate ) {
          sign_mode = TGSI_UTIL_SIGN_SET;
       }
       else {
@@ -122,17 +122,7 @@ tgsi_util_get_full_src_register_sign_mode(
       }
    }
    else {
-      /* Accumulate the three negations. */
-
-      unsigned negate;
-
-      negate = reg->SrcRegister.Negate;
-
-      if( reg->SrcRegisterExtMod.Negate ) {
-         negate = !negate;
-      }
-
-      if( negate ) {
+      if( reg->SrcRegister.Negate ) {
          sign_mode = TGSI_UTIL_SIGN_TOGGLE;
       }
       else {
@@ -152,26 +142,22 @@ tgsi_util_set_full_src_register_sign_mode(
    {
    case TGSI_UTIL_SIGN_CLEAR:
       reg->SrcRegister.Negate = 0;
-      reg->SrcRegisterExtMod.Absolute = 1;
-      reg->SrcRegisterExtMod.Negate = 0;
+      reg->SrcRegister.Absolute = 1;
       break;
 
    case TGSI_UTIL_SIGN_SET:
-      reg->SrcRegister.Negate = 0;
-      reg->SrcRegisterExtMod.Absolute = 1;
-      reg->SrcRegisterExtMod.Negate = 1;
+      reg->SrcRegister.Absolute = 1;
+      reg->SrcRegister.Negate = 1;
       break;
 
    case TGSI_UTIL_SIGN_TOGGLE:
       reg->SrcRegister.Negate = 1;
-      reg->SrcRegisterExtMod.Absolute = 0;
-      reg->SrcRegisterExtMod.Negate = 0;
+      reg->SrcRegister.Absolute = 0;
       break;
 
    case TGSI_UTIL_SIGN_KEEP:
       reg->SrcRegister.Negate = 0;
-      reg->SrcRegisterExtMod.Absolute = 0;
-      reg->SrcRegisterExtMod.Negate = 0;
+      reg->SrcRegister.Absolute = 0;
       break;
 
    default: