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-rw-r--r--gcc/tree-ssa-alias.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c
index 883c53d..17f2dc9 100644
--- a/gcc/tree-ssa-alias.c
+++ b/gcc/tree-ssa-alias.c
@@ -809,6 +809,9 @@ create_name_tags (struct alias_info *ai)
continue;
}
+ TREE_THIS_VOLATILE (pi->name_mem_tag)
+ |= TREE_THIS_VOLATILE (TREE_TYPE (TREE_TYPE (ptr)));
+
/* Mark the new name tag for renaming. */
bitmap_set_bit (vars_to_rename, var_ann (pi->name_mem_tag)->uid);
}
@@ -2138,7 +2141,7 @@ get_tmt_for (tree ptr, struct alias_info *ai)
}
/* If the pointed-to type is volatile, so is the tag. */
- TREE_THIS_VOLATILE (tag) = TREE_THIS_VOLATILE (tag_type);
+ TREE_THIS_VOLATILE (tag) |= TREE_THIS_VOLATILE (tag_type);
/* Make sure that the type tag has the same alias set as the
pointed-to type. */