diff options
Diffstat (limited to 'gcc/cp/tree.c')
| -rw-r--r-- | gcc/cp/tree.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c index 1cabf82..31fbec0 100644 --- a/gcc/cp/tree.c +++ b/gcc/cp/tree.c @@ -1626,8 +1626,18 @@ walk_tree (tp, func, data) int i; /* Walk over all the sub-trees of this operand. */ - for (i = first_rtl_op (code) - 1; i >= 0; --i) - WALK_SUBTREE (TREE_OPERAND (*tp, i)); + i = first_rtl_op (code) - 1; + /* TARGET_EXPRs are peculiar: operands 1 and 3 can be the same. + But, we only want to walk once. */ + if (code == TARGET_EXPR + && TREE_OPERAND (*tp, 3) == TREE_OPERAND (*tp, 1)) + --i; + /* Go through the subtrees. */ + while (i >= 0) + { + WALK_SUBTREE (TREE_OPERAND (*tp, i)); + --i; + } /* For statements, we also walk the chain so that we cover the entire statement tree. */ |