diff options
| -rw-r--r-- | gcc/gimple-match-head.cc | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/gcc/gimple-match-head.cc b/gcc/gimple-match-head.cc index 74d5818..1c74d38 100644 --- a/gcc/gimple-match-head.cc +++ b/gcc/gimple-match-head.cc @@ -1160,10 +1160,28 @@ types_match (tree t1, tree t2) non-SSA_NAME (ie constants) and zero uses to cope with uses that aren't linked up yet. */ -static inline bool -single_use (tree t) +static bool +single_use (const_tree) ATTRIBUTE_PURE; + +static bool +single_use (const_tree t) { - return TREE_CODE (t) != SSA_NAME || has_zero_uses (t) || has_single_use (t); + if (TREE_CODE (t) != SSA_NAME) + return true; + + /* Inline return has_zero_uses (t) || has_single_use (t); */ + const ssa_use_operand_t *const head = &(SSA_NAME_IMM_USE_NODE (t)); + const ssa_use_operand_t *ptr; + bool single = false; + + for (ptr = head->next; ptr != head; ptr = ptr->next) + if (USE_STMT(ptr) && !is_gimple_debug (USE_STMT (ptr))) + { + if (single) + return false; + single = true; + } + return true; } /* Return true if math operations should be canonicalized, |