program: Remove NV_fragment_program Abs support.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Brian Paul <brianp@vmware.com>

src/mesa/main/ffvertex_prog.c

@@ -537,7 +537,6 @@ static void emit_arg( struct prog_src_register *src,
    src->File = reg.file;
    src->Index = reg.idx;
    src->Swizzle = reg.swz;
-   src->Abs = reg.abs;
    src->Negate = reg.negate ? NEGATE_XYZW : NEGATE_NONE;
    src->RelAddr = 0;
    /* Check that bitfield sizes aren't exceeded */

src/mesa/program/ir_to_mesa.cpp

@@ -2180,7 +2180,6 @@ mesa_src_reg_from_ir_src_reg(src_reg reg)
    mesa_reg.Swizzle = reg.swizzle;
    mesa_reg.RelAddr = reg.reladdr != NULL;
    mesa_reg.Negate = reg.negate;
-   mesa_reg.Abs = 0;
 
    return mesa_reg;
 }

src/mesa/program/prog_execute.c

@@ -200,12 +200,6 @@ fetch_vector4(const struct prog_src_register *source,
       result[3] = src[GET_SWZ(source->Swizzle, 3)];
    }
 
-   if (source->Abs) {
-      result[0] = fabsf(result[0]);
-      result[1] = fabsf(result[1]);
-      result[2] = fabsf(result[2]);
-      result[3] = fabsf(result[3]);
-   }
    if (source->Negate) {
       assert(source->Negate == NEGATE_XYZW);
       result[0] = -result[0];
@@ -258,12 +252,6 @@ fetch_vector4_deriv(struct gl_context * ctx,
       result[2] = deriv[GET_SWZ(source->Swizzle, 2)];
       result[3] = deriv[GET_SWZ(source->Swizzle, 3)];
       
-      if (source->Abs) {
-         result[0] = fabsf(result[0]);
-         result[1] = fabsf(result[1]);
-         result[2] = fabsf(result[2]);
-         result[3] = fabsf(result[3]);
-      }
       if (source->Negate) {
          assert(source->Negate == NEGATE_XYZW);
          result[0] = -result[0];
@@ -289,9 +277,6 @@ fetch_vector1(const struct prog_src_register *source,
 
    result[0] = src[GET_SWZ(source->Swizzle, 0)];
 
-   if (source->Abs) {
-      result[0] = fabsf(result[0]);
-   }
    if (source->Negate) {
       result[0] = -result[0];
    }

src/mesa/program/prog_instruction.h

@@ -198,11 +198,8 @@ struct prog_src_register
    GLuint Swizzle:12;
    GLuint RelAddr:1;
 
-   /** Take the component-wise absolute value */
-   GLuint Abs:1;
-
    /**
-    * Post-Abs negation.
+    * Negation.
     * This will either be NEGATE_NONE or NEGATE_XYZW, except for the SWZ
     * instruction which allows per-component negation.
     */

src/mesa/program/prog_opt_constant_fold.c

@@ -82,7 +82,6 @@ src_regs_are_same(const struct prog_src_register *a,
    return (a->File == b->File)
       && (a->Index == b->Index)
       && (a->Swizzle == b->Swizzle)
-      && (a->Abs == b->Abs)
       && (a->Negate == b->Negate)
       && (a->RelAddr == 0)
       && (b->RelAddr == 0);
@@ -99,13 +98,6 @@ get_value(struct gl_program *prog, struct prog_src_register *r, float *data)
    data[2] = value[GET_SWZ(r->Swizzle, 2)].f;
    data[3] = value[GET_SWZ(r->Swizzle, 3)].f;
 
-   if (r->Abs) {
-      data[0] = fabsf(data[0]);
-      data[1] = fabsf(data[1]);
-      data[2] = fabsf(data[2]);
-      data[3] = fabsf(data[3]);
-   }
-
    if (r->Negate & 0x01) {
       data[0] = -data[0];
    }

src/mesa/program/prog_optimize.c

@@ -447,7 +447,6 @@ can_downward_mov_be_modifed(const struct prog_instruction *mov)
       mov->Opcode == OPCODE_MOV &&
       mov->SrcReg[0].RelAddr == 0 &&
       mov->SrcReg[0].Negate == 0 &&
-      mov->SrcReg[0].Abs == 0 &&
       mov->DstReg.RelAddr == 0;
 }
 
@@ -516,8 +515,7 @@ _mesa_remove_extra_move_use(struct gl_program *prog)
 
 	    if (inst2->SrcReg[arg].File != mov->DstReg.File ||
 		inst2->SrcReg[arg].Index != mov->DstReg.Index ||
-		inst2->SrcReg[arg].RelAddr ||
+		inst2->SrcReg[arg].RelAddr)
-		inst2->SrcReg[arg].Abs)
 	       continue;
             read_mask = get_src_arg_mask(inst2, arg, NO_MASK);
 

src/mesa/program/prog_print.c

@@ -528,15 +528,11 @@ fprint_src_reg(FILE *f,
                gl_prog_print_mode mode,
                const struct gl_program *prog)
 {
-   const char *abs = srcReg->Abs ? "|" : "";
+   fprintf(f, "%s%s",
-
-   fprintf(f, "%s%s%s%s",
-	   abs,
 	   reg_string((gl_register_file) srcReg->File,
 		      srcReg->Index, mode, srcReg->RelAddr, prog),
 	   _mesa_swizzle_string(srcReg->Swizzle,
-				srcReg->Negate, GL_FALSE),
+				srcReg->Negate, GL_FALSE));
-	   abs);
 #if 0
    fprintf(f, "%s[%d]%s",
 	   _mesa_register_file_name((gl_register_file) srcReg->File),

src/mesa/program/prog_to_nir.c

@@ -230,9 +230,6 @@ ptn_get_src(struct ptn_compile *c, const struct prog_src_register *prog_src)
 
       def = nir_fmov_alu(b, src, 4);
 
-      if (prog_src->Abs)
-         def = nir_fabs(b, def);
-
       if (prog_src->Negate)
          def = nir_fneg(b, def);
    } else {
@@ -258,9 +255,6 @@ ptn_get_src(struct ptn_compile *c, const struct prog_src_register *prog_src)
             chans[i] = &mov->dest.dest.ssa;
          }
 
-         if (prog_src->Abs)
-            chans[i] = nir_fabs(b, chans[i]);
-
          if (prog_src->Negate & (1 << i))
             chans[i] = nir_fneg(b, chans[i]);
       }

src/mesa/program/program_parse.y

@@ -555,21 +555,6 @@ scalarSrcReg: optionalSign scalarUse
 	      $$.Base.Negate = ~$$.Base.Negate;
 	   }
 	}
-	| optionalSign '|' scalarUse '|'
-	{
-	   $$ = $3;
-
-	   if (!state->option.NV_fragment) {
-	      yyerror(& @2, state, "unexpected character '|'");
-	      YYERROR;
-	   }
-
-	   if ($1) {
-	      $$.Base.Negate = ~$$.Base.Negate;
-	   }
-
-	   $$.Base.Abs = 1;
-	}
 	;
 
 scalarUse:  srcReg scalarSuffix
@@ -609,24 +594,6 @@ swizzleSrcReg: optionalSign srcReg swizzleSuffix
 	   $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
 						    $3.swizzle);
 	}
-	| optionalSign '|' srcReg swizzleSuffix '|'
-	{
-	   $$ = $3;
-
-	   if (!state->option.NV_fragment) {
-	      yyerror(& @2, state, "unexpected character '|'");
-	      YYERROR;
-	   }
-
-	   if ($1) {
-	      $$.Base.Negate = ~$$.Base.Negate;
-	   }
-
-	   $$.Base.Abs = 1;
-	   $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
-						    $4.swizzle);
-	}
-
 	;
 
 maskedDstReg: dstReg optionalMask

src/mesa/state_tracker/st_mesa_to_tgsi.c

@@ -320,9 +320,6 @@ translate_src( struct st_translate *t,
    if (SrcReg->Negate == NEGATE_XYZW)
       src = ureg_negate(src);
 
-   if (SrcReg->Abs) 
-      src = ureg_abs(src);
-
    if (SrcReg->RelAddr) {
       src = ureg_src_indirect( src, ureg_src(t->address[0]));
       if (SrcReg->File != PROGRAM_INPUT &&