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Diffstat (limited to 'gcc/tree-ssa-coalesce.c')
| -rw-r--r-- | gcc/tree-ssa-coalesce.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/tree-ssa-coalesce.c b/gcc/tree-ssa-coalesce.c index fda79dc..be696fe 100644 --- a/gcc/tree-ssa-coalesce.c +++ b/gcc/tree-ssa-coalesce.c @@ -1213,8 +1213,13 @@ coalesce_partitions (var_map map, ssa_conflicts_p graph, coalesce_list_p cl, gsi_next (&gsi)) { gphi *phi = gsi.phi (); + tree arg = PHI_ARG_DEF (phi, e->dest_idx); + if (SSA_NAME_IS_DEFAULT_DEF (arg) + && (!SSA_NAME_VAR (arg) + || TREE_CODE (SSA_NAME_VAR (arg)) != PARM_DECL)) + continue; + tree res = PHI_RESULT (phi); - tree arg = PHI_ARG_DEF (phi, e->dest_idx); int v1 = SSA_NAME_VERSION (res); int v2 = SSA_NAME_VERSION (arg); |