Mesa (master): swrast: fix undefined shift of 1 << 31

[GitLab Mirror]

Module: Mesa
Branch: master
Commit: 4690f9072828308bae59cfa549490e166fb60192
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=4690f9072828308bae59cfa549490e166fb60192

Author: Dave Airlie <airlied at redhat.com>
Date:   Thu Apr 11 20:36:03 2019 +1000

swrast: fix undefined shift of 1 << 31

Pointed out by coverity

Reviewed-by: Eric Engestrom <eric.engestrom at intel.com>
Reviewed-by: Roland Scheidegger <sroland at vmware.com>

---

 src/mesa/swrast/s_span.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index f50b549a97f..184a37c99b8 100644
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -769,7 +769,7 @@ clip_span( struct gl_context *ctx, SWspan *span )
           * For arrays of values, shift them left.
           */
          for (i = 0; i < VARYING_SLOT_MAX; i++) {
-            if (span->interpMask & (1 << i)) {
+            if (span->interpMask & (1u << i)) {
                GLuint j;
                for (j = 0; j < 4; j++) {
                   span->attrStart[i][j] += leftClip * span->attrStepX[i][j];