refactor code calling builtins and implement dp4
diff --git a/src/gallium/auxiliary/gallivm/soabuiltins.c b/src/gallium/auxiliary/gallivm/soabuiltins.c
index 0b428a7..24c14e1 100644
--- a/src/gallium/auxiliary/gallivm/soabuiltins.c
+++ b/src/gallium/auxiliary/gallivm/soabuiltins.c
@@ -46,6 +46,20 @@
res[3] = dot;
}
+
+void dp4(float4 *res,
+ float4 tmp0x, float4 tmp0y, float4 tmp0z, float4 tmp0w,
+ float4 tmp1x, float4 tmp1y, float4 tmp1z, float4 tmp1w)
+{
+ float4 dot = (tmp0x * tmp1x) + (tmp0y * tmp1y) +
+ (tmp0z * tmp1z) + (tmp0w * tmp1w);
+
+ res[0] = dot;
+ res[1] = dot;
+ res[2] = dot;
+ res[3] = dot;
+}
+
#if 0
void yo(float4 *out, float4 *in)
{