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| author | Jan Hubicka <hubicka@ucw.cz> | 2015-12-16 18:26:20 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2015-12-16 17:26:20 +0000 |
| commit | 2994ab20f1702205ad1be6ef120d0460b236ae7c (patch) | |
| tree | fdf0ac7629ddac3966a0a7ce9814ca63b3387581 /gcc/ipa-prop.c | |
| parent | 8062bca66dc0acfaf7b5d2659ee5ca4381fea9e8 (diff) | |
| download | gcc-2994ab20f1702205ad1be6ef120d0460b236ae7c.zip gcc-2994ab20f1702205ad1be6ef120d0460b236ae7c.tar.gz gcc-2994ab20f1702205ad1be6ef120d0460b236ae7c.tar.bz2 | |
ipa-cp.c (ipa_get_indirect_edge_target_1): Use can_refer; do not speculate to impossible targets.
* ipa-cp.c (ipa_get_indirect_edge_target_1): Use can_refer; do not
speculate to impossible targets.
* ipa-prop.c (try_make_edge_direct_virtual_call): Likewise.
From-SVN: r231705
Diffstat (limited to 'gcc/ipa-prop.c')
| -rw-r--r-- | gcc/ipa-prop.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/ipa-prop.c b/gcc/ipa-prop.c index 72c2fed..0ab2427 100644 --- a/gcc/ipa-prop.c +++ b/gcc/ipa-prop.c @@ -2898,18 +2898,22 @@ try_make_edge_direct_virtual_call (struct cgraph_edge *ie, true); if (t && vtable_pointer_value_to_vtable (t, &vtable, &offset)) { + bool can_refer; t = gimple_get_virt_method_for_vtable (ie->indirect_info->otr_token, - vtable, offset); - if (t) + vtable, offset, &can_refer); + if (can_refer) { - if ((TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE - && DECL_FUNCTION_CODE (t) == BUILT_IN_UNREACHABLE) + if (!t + || (TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE + && DECL_FUNCTION_CODE (t) == BUILT_IN_UNREACHABLE) || !possible_polymorphic_call_target_p (ie, cgraph_node::get (t))) { /* Do not speculate builtin_unreachable, it is stupid! */ if (!ie->indirect_info->vptr_changed) target = ipa_impossible_devirt_target (ie, target); + else + target = NULL; } else { |