http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59201
Bug ID: 59201
Summary: [4.9 Regression] error: stmt (0x7f01c4708130) marked
modified after optimization pass
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: octoploid at yandex dot com
markus@x4 src % cat test.ii
class A {
public:
virtual void m_fn1();
};
class B final : A {
~B();
virtual void m_fn2() { m_fn1(); }
};
B::~B() {}
markus@x4 src % g++ -c -std=c++11 -O2 test.ii
test.ii: In member function ‘virtual void B::m_fn2()’:
test.ii:7:16: error: stmt (0x7f96e3a9e130) marked modified after optimization
pass:
virtual void m_fn2() { m_fn1(); }
^
# .MEM_6 = VDEF <.MEM_2(D)>
A::m_fn1 (_5);
test.ii:7:16: internal compiler error: verify_ssa failed
0xcc71df verify_ssa(bool)
../../gcc/gcc/tree-ssa.c:1092
0xa7fffc execute_function_todo
../../gcc/gcc/passes.c:1842
0xa80883 execute_todo
../../gcc/gcc/passes.c:1875
0xa826f1 execute_one_ipa_transform_pass
../../gcc/gcc/passes.c:2060
0xa826f1 execute_all_ipa_transforms()
../../gcc/gcc/passes.c:2091
0x822eb0 expand_function
../../gcc/gcc/cgraphunit.c:1753
0x824fe7 expand_all_functions
../../gcc/gcc/cgraphunit.c:1865
0x824fe7 compile()
../../gcc/gcc/cgraphunit.c:2199
0x825504 finalize_compilation_unit()
../../gcc/gcc/cgraphunit.c:2276
0x6217ae cp_write_global_declarations()
../../gcc/gcc/cp/decl2.c:4408
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
markus@x4 src %
