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| author | Martin Jambor <mjambor@suse.cz> | 2016-08-09 18:05:30 +0200 |
|---|---|---|
| committer | Martin Jambor <jamborm@gcc.gnu.org> | 2016-08-09 18:05:30 +0200 |
| commit | 04d6d3b6d77d247616543dedad7ee239368591a5 (patch) | |
| tree | fb415bd7783c05576d00d25478e6a73a42af2380 /gcc/ipa-polymorphic-call.c | |
| parent | 045f240b97c75ad7e8f27a6464ae5b6857128fbe (diff) | |
| download | gcc-04d6d3b6d77d247616543dedad7ee239368591a5.zip gcc-04d6d3b6d77d247616543dedad7ee239368591a5.tar.gz gcc-04d6d3b6d77d247616543dedad7ee239368591a5.tar.bz2 | |
[PR ipa/71981] Make get_dynamic_type grok MEM_REF
2016-08-09 Martin Jambor <mjambor@suse.cz>
PR ipa/71981
* ipa-polymorphic-call.c (get_dynamic_type): Bail out gracefully
if instance is a MEM_REF.
testsuite/
PR ipa/71981
* gcc.dg/ipa/pr71981.c: New test.
From-SVN: r239294
Diffstat (limited to 'gcc/ipa-polymorphic-call.c')
| -rw-r--r-- | gcc/ipa-polymorphic-call.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/ipa-polymorphic-call.c b/gcc/ipa-polymorphic-call.c index 56f3344..f7ef6aa 100644 --- a/gcc/ipa-polymorphic-call.c +++ b/gcc/ipa-polymorphic-call.c @@ -1544,6 +1544,11 @@ ipa_polymorphic_call_context::get_dynamic_type (tree instance, if (!maybe_in_construction && !maybe_derived_type) return false; + /* If we are in fact not looking at any object object or the instance is + some placement new into a random load, give up straight away. */ + if (TREE_CODE (instance) == MEM_REF) + return false; + /* We need to obtain refernce to virtual table pointer. It is better to look it up in the code rather than build our own. This require bit of pattern matching, but we end up verifying that what we found is @@ -1664,7 +1669,6 @@ ipa_polymorphic_call_context::get_dynamic_type (tree instance, tci.offset = instance_offset; tci.instance = instance; tci.vtbl_ptr_ref = instance_ref; - gcc_assert (TREE_CODE (instance) != MEM_REF); tci.known_current_type = NULL_TREE; tci.known_current_offset = 0; tci.otr_type = otr_type; |