[Bug rtl-optimization/61094] [4.9/4.10 Regression] -O3 insn Internal compiler error in copyprop_hardreg_forward_1, at regcprop.c:775
glisse at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri May 9 19:05:00 GMT 2014
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61094
--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> ---
template <typename> struct A {
unsigned _width, _height, _depth, _spectrum;
template <typename t> A(t p1) {
int a = p1.size();
if (a) {
_width = p1._width;
_depth = _height = _spectrum = p1._spectrum;
}
}
long size() { return (long)_width * _height * _depth * _spectrum; }
};
int d;
void fn1(void *);
A<int> *fn2();
void fn3() {
int b;
for (;;) {
A<char> c(*fn2());
fn1(&c);
if (d || !b)
throw;
}
}
a.ii: In function 'void fn3()':
a.ii:24:1: error: insn does not satisfy its constraints:
}
^
(insn 67 20 62 3 (set (reg:DI 21 xmm0)
(reg:DI 2 cx)) 89 {*movdi_internal}
(expr_list:REG_DEAD (reg:DI 2 cx)
(nil)))
a.ii:24:1: internal compiler error: in copyprop_hardreg_forward_1, at
regcprop.c:775
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