glsl/linker: check against varying limit after unused varyings are eliminated

We counted even the varyings which were later eliminated, which was
suboptimal.

Reviewed-by: Ian Romanick <[email protected]>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 3adcddd16b6..6d7357820c9 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -1929,6 +1929,10 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
       while (do_dead_code(sh_next->ir, false))
          ;
 
+      /* This must be done after all dead varyings are eliminated. */
+      if (!check_against_varying_limit(ctx, prog, sh_next))
+         goto done;
+
       next = i;
    }