llvmpipe: generate two shader varients, one omits triangle in/out testing

When we know that a 4x4 pixel block is entirely inside of a triangle
use the jit function which omits the in/out test code.

Results in a few percent speedup in many tests.

1 files changed, 4 insertions, 7 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_rast_tri.c b/src/gallium/drivers/llvmpipe/lp_rast_tri.c
index bc7397f50c..9c3f699ec7 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast_tri.c
+++ b/src/gallium/drivers/llvmpipe/lp_rast_tri.c
@@ -89,13 +89,10 @@ block_full_4( struct lp_rasterizer_task *rast_task,
               const struct lp_rast_triangle *tri,
               int x, int y )
 {
-   /* Set c1,c2,c3 to large values so the in/out test always passes */
-   const int32_t c1 = INT_MIN, c2 = INT_MIN, c3 = INT_MIN;
-   lp_rast_shade_quads(rast_task->rast,
-                       rast_task->thread_index,
-                       &tri->inputs, 
-                       x, y,
-                       c1, c2, c3);
+   lp_rast_shade_quads_all(rast_task->rast,
+                           rast_task->thread_index,
+                           &tri->inputs, 
+                           x, y);
 }