diff options
Diffstat (limited to 'gcc/tree-ssa-pre.c')
| -rw-r--r-- | gcc/tree-ssa-pre.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c index fb9ed02..c5af63d 100644 --- a/gcc/tree-ssa-pre.c +++ b/gcc/tree-ssa-pre.c @@ -2897,11 +2897,16 @@ create_expression_by_pieces (basic_block block, pre_expr expr, folded = gimple_convert (&forced_stmts, exprtype, folded); - /* If everything simplified to an exisiting SSA name or constant just - return that. */ - if (gimple_seq_empty_p (forced_stmts) - || is_gimple_min_invariant (folded)) + /* If there is nothing to insert, return the simplified result. */ + if (gimple_seq_empty_p (forced_stmts)) return folded; + /* If we simplified to a constant return it and discard eventually + built stmts. */ + if (is_gimple_min_invariant (folded)) + { + gimple_seq_discard (forced_stmts); + return folded; + } gcc_assert (TREE_CODE (folded) == SSA_NAME); |