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Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp')
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
index b0ee289..ac200d2 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
@@ -780,7 +780,13 @@ brw_compile_gs(const struct brw_compiler *compiler, void *log_data,
if (compiler->devinfo->gen >= 8)
output_size_bytes += 32;
- assert(output_size_bytes >= 1);
+ /* Shaders can technically set max_vertices = 0, at which point we
+ * may have a URB size of 0 bytes. Nothing good can come from that,
+ * so enforce a minimum size.
+ */
+ if (output_size_bytes == 0)
+ output_size_bytes = 1;
+
unsigned max_output_size_bytes = GEN7_MAX_GS_URB_ENTRY_SIZE_BYTES;
if (compiler->devinfo->gen == 6)
max_output_size_bytes = GEN6_MAX_GS_URB_ENTRY_SIZE_BYTES;