nir/validate: Only build in debug mode

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>

src/glsl/nir/nir.h

@@ -1437,7 +1437,11 @@ void nir_index_blocks(nir_function_impl *impl);
 
 void nir_print_shader(nir_shader *shader, FILE *fp);
 
+#ifdef DEBUG
 void nir_validate_shader(nir_shader *shader);
+#else
+static inline void nir_validate_shader(nir_shader *shader) { }
+#endif /* DEBUG */
 
 void nir_calc_dominance_impl(nir_function_impl *impl);
 void nir_calc_dominance(nir_shader *shader);

src/glsl/nir/nir_validate.c

@@ -32,6 +32,11 @@
  * This file checks for invalid IR indicating a bug somewhere in the compiler.
  */
 
+/* Since this file is just a pile of asserts, don't bother compiling it if
+ * we're not building a debug build.
+ */
+#ifdef DEBUG
+
 /*
  * Per-register validation state.
  */
@@ -882,3 +887,5 @@ nir_validate_shader(nir_shader *shader)
 
    destroy_validate_state(&state);
 }
+
+#endif /* NDEBUG */