diff options
Diffstat (limited to 'gcc/tree-cfgcleanup.c')
| -rw-r--r-- | gcc/tree-cfgcleanup.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree-cfgcleanup.c b/gcc/tree-cfgcleanup.c index 6f8b1c0..836a14d 100644 --- a/gcc/tree-cfgcleanup.c +++ b/gcc/tree-cfgcleanup.c @@ -746,6 +746,7 @@ merge_phi_nodes (void) else { tree phi; + unsigned int dest_idx = single_succ_edge (bb)->dest_idx; /* BB dominates DEST. There may be many users of the PHI nodes in BB. However, there is still a trivial case we @@ -767,7 +768,8 @@ merge_phi_nodes (void) /* Get the single use of the result of this PHI node. */ if (!single_imm_use (result, &imm_use, &use_stmt) || TREE_CODE (use_stmt) != PHI_NODE - || bb_for_stmt (use_stmt) != dest) + || bb_for_stmt (use_stmt) != dest + || PHI_ARG_DEF (use_stmt, dest_idx) != result) break; } |