http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58978
Bug ID: 58978
Summary: [4.9 Regression] ICE: Segmentation fault
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: octoploid at yandex dot com
markus@x4 tmp % cat test.ii
class A {
public:
int m_fn1();
};
class B {
public:
static B *m_fn1(int);
enum {
d = 8,
Sub,
Mul,
UDiv,
SDiv,
URem,
SRem,
Shl,
LShr
};
};
class C {
A Lex;
void m_fn1();
};
void C::m_fn1() {
switch (0)
case 0: {
int a = Lex.m_fn1();
switch (a) {
case 1:
case B::Sub:
case B::Mul:
case B::UDiv:
case B::SDiv:
case B::URem:
case B::SRem:
case B::Shl:
case 0:
case B::LShr:
break;
default:
__builtin_unreachable();
}
B::m_fn1(a);
}
}
markus@x4 tmp % g++ -O2 -c test.ii
test.ii: In member function ‘void C::m_fn1()’:
test.ii:24:6: internal compiler error: Segmentation fault
void C::m_fn1() {
^
0xb15d0f crash_signal
../../gcc/gcc/toplev.c:334
0xd2a30f single_imm_use
../../gcc/gcc/ssa-iterators.h:426
0xd2a30f all_imm_uses_in_stmt_or_feed_cond
../../gcc/gcc/tree-vrp.c:6480
0xd2a30f remove_range_assertions
../../gcc/gcc/tree-vrp.c:6622
0xd2a30f execute_vrp
../../gcc/gcc/tree-vrp.c:9759
0xd2a30f execute
../../gcc/gcc/tree-vrp.c:9842
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.
