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Diffstat (limited to 'gcc/tree-ssa-threadbackward.c')
| -rw-r--r-- | gcc/tree-ssa-threadbackward.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/tree-ssa-threadbackward.c b/gcc/tree-ssa-threadbackward.c index 8770be8..e378adb 100644 --- a/gcc/tree-ssa-threadbackward.c +++ b/gcc/tree-ssa-threadbackward.c @@ -620,6 +620,15 @@ back_threader_profitability::profitable_path_p (const vec<basic_block> &m_path, if (m_path.length () <= 1) return false; + if (m_path.length () > (unsigned) param_max_fsm_thread_length) + { + if (dump_file && (dump_flags & TDF_DETAILS)) + fprintf (dump_file, " FAIL: Jump-thread path not considered: " + "the number of basic blocks on the path " + "exceeds PARAM_MAX_FSM_THREAD_LENGTH.\n"); + return false; + } + int n_insns = 0; gimple_stmt_iterator gsi; loop_p loop = m_path[0]->loop_father; |