diff options
Diffstat (limited to 'gcc/ipa.c')
| -rw-r--r-- | gcc/ipa.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/ipa.c b/gcc/ipa.c index 021398b6748..b199796fcdb 100644 --- a/gcc/ipa.c +++ b/gcc/ipa.c @@ -561,6 +561,7 @@ ipa_discover_readonly_nonaddressable_vars (void) if (dump_file) fprintf (dump_file, " %s (read-only)", varpool_node_name (vnode)); TREE_READONLY (vnode->decl) = 1; + vnode->const_value_known |= varpool_decide_const_value_known (vnode); } } if (dump_file) @@ -767,6 +768,9 @@ function_and_variable_visibility (bool whole_program) || ! (ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (TREE_TYPE (vnode->decl)))))) DECL_COMMON (vnode->decl) = 0; + /* Even extern variables might have initializers known. + See, for example testsuite/g++.dg/opt/static3.C */ + vnode->const_value_known |= varpool_decide_const_value_known (vnode); } for (vnode = varpool_nodes_queue; vnode; vnode = vnode->next_needed) { @@ -801,6 +805,7 @@ function_and_variable_visibility (bool whole_program) gcc_assert (in_lto_p || whole_program || !TREE_PUBLIC (vnode->decl)); cgraph_make_decl_local (vnode->decl); } + vnode->const_value_known |= varpool_decide_const_value_known (vnode); gcc_assert (TREE_STATIC (vnode->decl)); } pointer_set_destroy (aliased_nodes); |