summaryrefslogtreecommitdiff
path: root/src/gallium/auxiliary/draw/draw_vs_aos.c
diff options
context:
space:
mode:
authorKeith Whitwell <keith@tungstengraphics.com>2008-05-25 15:47:04 +0100
committerKeith Whitwell <keith@tungstengraphics.com>2008-05-25 15:47:04 +0100
commit9c7568965c00dcc2e9403a2f94f1cd09dcd783ae (patch)
tree0f17948cb9eb6f46a4265dd398f85db35da7739e /src/gallium/auxiliary/draw/draw_vs_aos.c
parent3afb7198e01516dba38bb3248d4c0161e54650fe (diff)
draw: slight tweak for XPD opcode
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_vs_aos.c')
-rw-r--r--src/gallium/auxiliary/draw/draw_vs_aos.c21
1 files changed, 7 insertions, 14 deletions
diff --git a/src/gallium/auxiliary/draw/draw_vs_aos.c b/src/gallium/auxiliary/draw/draw_vs_aos.c
index 34dc09ead7..37d04e45a6 100644
--- a/src/gallium/auxiliary/draw/draw_vs_aos.c
+++ b/src/gallium/auxiliary/draw/draw_vs_aos.c
@@ -1626,31 +1626,24 @@ static boolean emit_XPD( struct aos_compilation *cp, const struct tgsi_full_inst
{
struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]);
struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]);
- struct x86_reg dst = aos_get_xmm_reg(cp);
struct x86_reg tmp0 = aos_get_xmm_reg(cp);
struct x86_reg tmp1 = aos_get_xmm_reg(cp);
- /* Could avoid tmp0, tmp1 if we overwrote arg0, arg1. Need a way
- * to invalidate registers. This will come with better analysis
- * (liveness analysis) of the incoming program.
- */
- emit_pshufd(cp, dst, arg0, SHUF(Y, Z, X, W));
- emit_pshufd(cp, tmp1, arg1, SHUF(Z, X, Y, W));
- sse_mulps(cp->func, dst, tmp1);
- emit_pshufd(cp, tmp0, arg0, SHUF(Z, X, Y, W));
emit_pshufd(cp, tmp1, arg1, SHUF(Y, Z, X, W));
- sse_mulps(cp->func, tmp0, tmp1);
- sse_subps(cp->func, dst, tmp0);
+ sse_mulps(cp->func, tmp1, arg0);
+ emit_pshufd(cp, tmp0, arg0, SHUF(Y, Z, X, W));
+ sse_mulps(cp->func, tmp0, arg1);
+ sse_subps(cp->func, tmp1, tmp0);
+ sse_shufps(cp->func, tmp1, tmp1, SHUF(Y, Z, X, W));
+/* dst[2] = arg0[0] * arg1[1] - arg0[1] * arg1[0]; */
/* dst[0] = arg0[1] * arg1[2] - arg0[2] * arg1[1]; */
/* dst[1] = arg0[2] * arg1[0] - arg0[0] * arg1[2]; */
-/* dst[2] = arg0[0] * arg1[1] - arg0[1] * arg1[0]; */
/* dst[3] is undef */
aos_release_xmm_reg(cp, tmp0.idx);
- aos_release_xmm_reg(cp, tmp1.idx);
- store_dest(cp, &op->FullDstRegisters[0], dst);
+ store_dest(cp, &op->FullDstRegisters[0], tmp1);
return TRUE;
}