diff options
Diffstat (limited to 'gcc/tree-inline.c')
| -rw-r--r-- | gcc/tree-inline.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c index 51aa065..2197769 100644 --- a/gcc/tree-inline.c +++ b/gcc/tree-inline.c @@ -2187,9 +2187,10 @@ copy_bb (copy_body_data *id, basic_block bb, num, den, true); - /* Speculative calls consist of two edges - direct and - indirect. Duplicate the whole thing and distribute - frequencies accordingly. */ + /* A speculative call is consist of edges - indirect edge + and direct edges (one indirect edeg may has multiple + direct edges). Duplicate the whole thing and + distribute frequencies accordingly. */ if (edge->speculative) { struct cgraph_edge *direct, *indirect; @@ -2197,8 +2198,33 @@ copy_bb (copy_body_data *id, basic_block bb, gcc_assert (!edge->indirect_unknown_callee); old_edge->speculative_call_info (direct, indirect, ref); + while (old_edge->next_callee + && old_edge->next_callee->speculative + && indirect->num_speculative_call_targets_p () + > 1) + { + id->dst_node->clone_reference (ref, stmt); + + edge = old_edge->next_callee; + edge = edge->clone (id->dst_node, call_stmt, + gimple_uid (stmt), num, den, + true); + old_edge = old_edge->next_callee; + gcc_assert (!edge->indirect_unknown_callee); + + /* If the indirect edge has multiple speculative + calls, iterate through all direct calls + associated to the speculative call and clone + all related direct edges before cloning the + related indirect edge. */ + old_edge->speculative_call_info (direct, indirect, + ref); + } profile_count indir_cnt = indirect->count; + + /* Duplicate the indirect edge after all direct edges + cloned. */ indirect = indirect->clone (id->dst_node, call_stmt, gimple_uid (stmt), num, den, |