nir: Add a variable_foreach_safe helper

Reviewed-by: Rob Clark <robdclark@gmail.com>

diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 37d2907..6bd871d 100644 (file)
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -334,6 +334,9 @@ typedef struct nir_variable {
 #define nir_foreach_variable(var, var_list) \
    foreach_list_typed(nir_variable, var, node, var_list)
 
+#define nir_foreach_variable_safe(var, var_list) \
+   foreach_list_typed_safe(nir_variable, var, node, var_list)
+
 static inline bool
 nir_variable_is_global(const nir_variable *var)
 {