https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79557
Bug ID: 79557
Summary: ICE in ipa_modify_formal_parameters, at
ipa-prop.c:3979
Product: gcc
Version: 7.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gerhard.steinmetz.fort...@t-online.de
Target Milestone: ---
Version 7 applied to ./gcc/testsuite/g++.dg/cpp1z/inh-ctor28.C
(on x86_64 GNU/Linux) at -Os, -O2 or higher :
$ cat inh-ctor28.C
struct V { V(int); };
struct W : virtual V { using V::V; };
struct X : virtual W, virtual V { using W::W; };
X x(0);
$ gcc-7-20170212 -O2 -c inh-ctor28.C
inh-ctor28.C: In constructor 'W::W(int) [inherited from V]':
inh-ctor28.C:4:7: internal compiler error: in ipa_modify_formal_parameters, at
ipa-prop.c:3979
X x(0);
^
0xc073ce ipa_modify_formal_parameters(tree_node*, vec<ipa_parm_adjustment,
va_heap, vl_ptr>)
../../gcc/ipa-prop.c:3979
0xed1b69 modify_function
../../gcc/tree-sra.c:5179
0xedbe96 ipa_early_sra
../../gcc/tree-sra.c:5410
0xedbe96 execute
../../gcc/tree-sra.c:5457
