Mesa (master): llvmpipe: Silence uninitialized variable warning about "scissor"

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Module: Mesa
Branch: master
Commit: 81225e1f0349b0b2ddff0fbfcd832752f8177477
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=81225e1f0349b0b2ddff0fbfcd832752f8177477

Author: Eric Anholt <eric at anholt.net>
Date:   Mon Dec 16 20:56:14 2019 -0800

llvmpipe: Silence uninitialized variable warning about "scissor"

nr_planes is only > 3 when scissor is enabled, but gcc doesn't see it.

Reviewed-by: Roland Scheidegger <sroland at vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3867>

---

 src/gallium/drivers/llvmpipe/lp_setup_tri.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
index d24a4b4afe7..93fbe429dab 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
@@ -273,7 +273,7 @@ do_triangle_ccw(struct lp_setup_context *setup,
    const struct lp_setup_variant_key *key = &setup->setup.variant->key;
    struct lp_rast_triangle *tri;
    struct lp_rast_plane *plane;
-   const struct u_rect *scissor;
+   const struct u_rect *scissor = NULL;
    struct u_rect bbox, bboxpos;
    boolean s_planes[4];
    unsigned tri_bytes;