diff options
| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-01-18 17:31:35 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-01-18 17:31:35 +0000 |
| commit | 2c9d5cb8354d561bbfa418895cb6158c1c855e75 (patch) | |
| tree | 5e9c965ac3ae352399fa5d34e07ea24667cf9498 /gcc | |
| parent | dd920757d437ffa60a0f9b008e57507d4c8ee831 (diff) | |
| download | gcc-2c9d5cb8354d561bbfa418895cb6158c1c855e75.tar.gz | |
PR ipa/64378
* ipa-prop.c (try_make_edge_direct_virtual_call): Clear speculative
flag correctly.
* ipa-cp.c (ipa_get_indirect_edge_target_1): Handle speculation.
* g++.dg/torture/pr64378.C: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@219822 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/ipa-cp.c | 9 | ||||
| -rw-r--r-- | gcc/ipa-prop.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/torture/pr64378.C | 24 |
5 files changed, 45 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bbf60d69f2e..00a9622928d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2015-01-18 Jan Hubicka <hubicka@ucw.cz> + + PR ipa/64378 + * ipa-prop.c (try_make_edge_direct_virtual_call): Clear speculative + flag correctly. + * ipa-cp.c (ipa_get_indirect_edge_target_1): Handle speculation. + 2015-01-18 Sandra Loosemore <sandra@codesourcery.com> * doc/invoke.texi ([-funroll-loops], [-funroll-all-loops]): diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c index 44f16bf86f2..90fd3c29191 100644 --- a/gcc/ipa-cp.c +++ b/gcc/ipa-cp.c @@ -1975,8 +1975,13 @@ ipa_get_indirect_edge_target_1 (struct cgraph_edge *ie, } } else if (t) - context = ipa_polymorphic_call_context (t, ie->indirect_info->otr_type, - anc_offset); + { + context = ipa_polymorphic_call_context (t, ie->indirect_info->otr_type, + anc_offset); + if (ie->indirect_info->vptr_changed) + context.possible_dynamic_type_change (ie->in_polymorphic_cdtor, + ie->indirect_info->otr_type); + } else return NULL_TREE; diff --git a/gcc/ipa-prop.c b/gcc/ipa-prop.c index 6807c22d7ed..9c8a785ceeb 100644 --- a/gcc/ipa-prop.c +++ b/gcc/ipa-prop.c @@ -2985,7 +2985,7 @@ try_make_edge_direct_virtual_call (struct cgraph_edge *ie, || !possible_polymorphic_call_target_p (ie, cgraph_node::get (t))) { - /* Do not speculate builtin_unreachable, it is stpid! */ + /* Do not speculate builtin_unreachable, it is stupid! */ if (!ie->indirect_info->vptr_changed) target = ipa_impossible_devirt_target (ie, target); } @@ -3013,6 +3013,7 @@ try_make_edge_direct_virtual_call (struct cgraph_edge *ie, ctx, &final); if (final && targets.length () <= 1) { + speculative = false; if (targets.length () == 1) target = targets[0]->decl; else diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a902dc30f03..e6972b8f4f4 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2015-01-18 Jan Hubicka <hubicka@ucw.cz> + + PR ipa/64378 + * g++.dg/torture/pr64378.C: New testcase. + 2015-01-18 Paul Thomas <pault@gcc.gnu.org> PR fortran/57959 diff --git a/gcc/testsuite/g++.dg/torture/pr64378.C b/gcc/testsuite/g++.dg/torture/pr64378.C new file mode 100644 index 00000000000..6770601eaf2 --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr64378.C @@ -0,0 +1,24 @@ +// { dg-do compile } +// { dg-options "-fno-ipa-cp" } +struct data { + data(int) {} +}; + +struct top { + virtual int topf() {} +}; + +struct child1: top { + void childf() + { + data d(topf()); + } +}; + +void test(top *t) +{ + child1 *c = static_cast<child1 *>(t); + c->childf(); + child1 d; + test(&d); +} |