1 files changed, 63 insertions, 0 deletions
diff --git a/gcc/tree.h b/gcc/tree.h
index f2424c6..6d5254d 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -4384,6 +4384,69 @@ extern void assign_assembler_name_if_neeeded (tree);
 extern void warn_deprecated_use (tree, tree);
 extern void cache_integer_cst (tree);
 
+/* Return the memory model from a host integer.  */
+static inline enum memmodel
+memmodel_from_int (unsigned HOST_WIDE_INT val)
+{
+  return (enum memmodel) (val & MEMMODEL_MASK);
+}
+
+/* Return the base memory model from a host integer.  */
+static inline enum memmodel
+memmodel_base (unsigned HOST_WIDE_INT val)
+{
+  return (enum memmodel) (val & MEMMODEL_BASE_MASK);
+}
+
+/* Return TRUE if the memory model is RELAXED.  */
+static inline bool
+is_mm_relaxed (enum memmodel model)
+{
+  return (model & MEMMODEL_BASE_MASK) == MEMMODEL_RELAXED;
+}
+
+/* Return TRUE if the memory model is CONSUME.  */
+static inline bool
+is_mm_consume (enum memmodel model)
+{
+  return (model & MEMMODEL_BASE_MASK) == MEMMODEL_CONSUME;
+}
+
+/* Return TRUE if the memory model is ACQUIRE.  */
+static inline bool
+is_mm_acquire (enum memmodel model)
+{
+  return (model & MEMMODEL_BASE_MASK) == MEMMODEL_ACQUIRE;
+}
+
+/* Return TRUE if the memory model is RELEASE.  */
+static inline bool
+is_mm_release (enum memmodel model)
+{
+  return (model & MEMMODEL_BASE_MASK) == MEMMODEL_RELEASE;
+}
+
+/* Return TRUE if the memory model is ACQ_REL.  */
+static inline bool
+is_mm_acq_rel (enum memmodel model)
+{
+  return (model & MEMMODEL_BASE_MASK) == MEMMODEL_ACQ_REL;
+}
+
+/* Return TRUE if the memory model is SEQ_CST.  */
+static inline bool
+is_mm_seq_cst (enum memmodel model)
+{
+  return (model & MEMMODEL_BASE_MASK) == MEMMODEL_SEQ_CST;
+}
+
+/* Return TRUE if the memory model is a SYNC variant.  */
+static inline bool
+is_mm_sync (enum memmodel model)
+{
+  return (model & MEMMODEL_SYNC);
+}
+
 /* Compare and hash for any structure which begins with a canonical
    pointer.  Assumes all pointers are interchangeable, which is sort
    of already assumed by gcc elsewhere IIRC.  */