diff options
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/tree-tailcall.c | 5 |
2 files changed, 6 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1d0ebc96be0..6341a0d0414 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2004-09-01 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> + * tree-tailcall.c (find_tail_calls): Also fail is statement has + volatile operands. + * tree-ssa.c (propagate_into_addr): Properly test for LHR. * doc/c-tree.texi: Document new operands for ARRAY_REF and diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c index 401a3991468..8c1aabcabb5 100644 --- a/gcc/tree-tailcall.c +++ b/gcc/tree-tailcall.c @@ -395,11 +395,12 @@ find_tail_calls (basic_block bb, struct tailcall **ret) if (TREE_CODE (call) == CALL_EXPR) break; - /* If the statement has virtual operands, fail. */ + /* If the statement has virtual or volatile operands, fail. */ ann = stmt_ann (stmt); if (NUM_V_MAY_DEFS (V_MAY_DEF_OPS (ann)) || NUM_V_MUST_DEFS (V_MUST_DEF_OPS (ann)) - || NUM_VUSES (VUSE_OPS (ann))) + || NUM_VUSES (VUSE_OPS (ann)) + || ann->has_volatile_ops) return; } |