glsl: Skip unavailable built-ins when matching signatures.

Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Paul Berry <[email protected]>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/glsl/ir_function.cpp b/src/glsl/ir_function.cpp
index 2dd98bcc291..53cf469d9c0 100644
--- a/src/glsl/ir_function.cpp
+++ b/src/glsl/ir_function.cpp
@@ -145,6 +145,10 @@ ir_function::matching_signature(_mesa_glsl_parse_state *state,
       ir_function_signature *const sig =
 	 (ir_function_signature *) iter.get();
 
+      /* Skip over any built-ins that aren't available in this shader. */
+      if (sig->is_builtin() && !sig->is_builtin_available(state))
+         continue;
+
       switch (parameter_lists_match(& sig->parameters, actual_parameters)) {
       case PARAMETER_LIST_EXACT_MATCH:
 	 *is_exact = true;
@@ -212,6 +216,10 @@ ir_function::exact_matching_signature(_mesa_glsl_parse_state *state,
       ir_function_signature *const sig =
 	 (ir_function_signature *) iter.get();
 
+      /* Skip over any built-ins that aren't available in this shader. */
+      if (sig->is_builtin() && !sig->is_builtin_available(state))
+         continue;
+
       if (parameter_lists_match_exact(&sig->parameters, actual_parameters))
 	 return sig;
    }