draw: Fix fetch_src(). Resurrect SSE version of DP3.

diff --git a/src/gallium/auxiliary/draw/draw_vs_aos.c b/src/gallium/auxiliary/draw/draw_vs_aos.c
index 5bfcd96..891f8c2 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_vs_aos.c
+++ b/src/gallium/auxiliary/draw/draw_vs_aos.c
@@ -532,10 +532,11 @@ static struct x86_reg fetch_src( struct aos_compilation *cp,
    if (swz != SSE_SWIZZLE_NOOP || negs != 0 || abs != 0) {
       struct x86_reg dst = aos_get_xmm_reg(cp);
 
-      if (swz != SSE_SWIZZLE_NOOP) {
+      if (swz != SSE_SWIZZLE_NOOP)
          emit_pshufd(cp, dst, arg0, swz);
-         arg0 = dst;
-      }
+      else
+         sse_movaps(cp->func, dst, arg0);
+      arg0 = dst;
 
       if (negs && negs != 0xf) {
          struct x86_reg imm_swz = aos_get_internal_xmm(cp, IMM_SWZ);
@@ -550,15 +551,13 @@ static struct x86_reg fetch_src( struct aos_compilation *cp,
                           (negs & 2) ? 1 : 0,
                           (negs & 4) ? 1 : 0,
                           (negs & 8) ? 1 : 0));
-         sse_mulps(cp->func, dst, arg0);
+         sse_mulps(cp->func, dst, tmp);
 
          aos_release_xmm_reg(cp, tmp.idx);
-         arg0 = dst;
       }
       else if (negs) {
          struct x86_reg imm_negs = aos_get_internal_xmm(cp, IMM_NEGS);
          sse_mulps(cp->func, dst, imm_negs);
-         arg0 = dst;
       }
 
 
@@ -571,10 +570,9 @@ static struct x86_reg fetch_src( struct aos_compilation *cp,
 
          sse_movaps(cp->func, tmp, arg0);
          sse_mulps(cp->func, tmp, neg);
-         sse_maxps(cp->func, dst, arg0);
+         sse_maxps(cp->func, dst, tmp);
 
          aos_release_xmm_reg(cp, tmp.idx);
-         arg0 = dst;
       }
    }
       
@@ -962,33 +960,6 @@ static boolean emit_COS( struct aos_compilation *cp, const struct tgsi_full_inst
    return TRUE;
 }
 
-#if 1
-
-/* The x87 version.
- */
-static boolean emit_DP3( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) 
-{
-   struct x86_reg st1 = x86_make_reg( file_x87, 1 );
-
-   x87_fld_src( cp, &op->FullSrcRegisters[0], 0 );
-   x87_fld_src( cp, &op->FullSrcRegisters[1], 0 );
-   x87_fmulp( cp->func, st1 );
-   x87_fld_src( cp, &op->FullSrcRegisters[0], 1 );
-   x87_fld_src( cp, &op->FullSrcRegisters[1], 1 );
-   x87_fmulp( cp->func, st1 );
-   x87_faddp( cp->func, st1 );
-   x87_fld_src( cp, &op->FullSrcRegisters[0], 2 );
-   x87_fld_src( cp, &op->FullSrcRegisters[1], 2 );
-   x87_fmulp( cp->func, st1 );
-   x87_faddp( cp->func, st1 );
-
-   x87_fstp_dest4( cp, &op->FullDstRegisters[0] );
-
-   return TRUE;
-}
-
-#else
-
 /* The dotproduct instructions don't really do that well in sse:
  * XXX: produces wrong results -- disabled.
  */
@@ -1012,8 +983,6 @@ static boolean emit_DP3( struct aos_compilation *cp, const struct tgsi_full_inst
    return TRUE;
 }
 
-#endif
-
 static boolean emit_DP4( struct aos_compilation *cp, const struct tgsi_full_instruction *op )
 {
    struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]);