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linker: Wrap access of producer_var with a NULL check

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producer_var could be NULL if consumer_var is not NULL and
consumer_is_fs is false.  This will occur when the producer is NULL and
the consumer is the geometry shader for a program that contains only a
geometry shader.  This will occur starting with the next patch.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: pavol@klacansky.com
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82585
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
(cherry picked from commit 5eca78a00a)
Nominated-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Ian Romanick 2014-12-01 14:16:24 -08:00 • committed by Emil Velikov
parent 893583776e
commit a4c8348597
1 changed files with 5 additions and 3 deletions
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8
src/glsl/link_varyings.cpp
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@ -835,9 +835,11 @@ varying_matches::record(ir_variable *producer_var, ir_variable *consumer_var)
* regardless of where they appear. We can trivially satisfy that
* requirement by changing the interpolation type to flat here.
*/
producer_var->data.centroid = false;
producer_var->data.sample = false;
producer_var->data.interpolation = INTERP_QUALIFIER_FLAT;
if (producer_var) {
producer_var->data.centroid = false;
producer_var->data.sample = false;
producer_var->data.interpolation = INTERP_QUALIFIER_FLAT;
}
if (consumer_var) {
consumer_var->data.centroid = false;