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Diffstat (limited to 'gcc/ipa-polymorphic-call.c')
| -rw-r--r-- | gcc/ipa-polymorphic-call.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/ipa-polymorphic-call.c b/gcc/ipa-polymorphic-call.c index b69f541..1a82bb7 100644 --- a/gcc/ipa-polymorphic-call.c +++ b/gcc/ipa-polymorphic-call.c @@ -1561,6 +1561,11 @@ ipa_polymorphic_call_context::get_dynamic_type (tree instance, ref = OBJ_TYPE_REF_EXPR (ref); ref = walk_ssa_copies (ref); + /* If call target is already known, no need to do the expensive + memory walk. */ + if (is_gimple_min_invariant (ref)) + return false; + /* Check if definition looks like vtable lookup. */ if (TREE_CODE (ref) == SSA_NAME && !SSA_NAME_IS_DEFAULT_DEF (ref) |