[Bug optimization/12686] ICE (segfault) at -O on valid code

[reichelt at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12686



------- Additional Comments From reichelt at gcc dot gnu dot org  2003-10-20 12:26 -------
Confirmed.
Here's a slightly reduced testcase.

====================================
#include<complex>

void foo (const double*p)
{
    double x;
    std::complex<double> y;

    y *= x;
    y *= x;

    x = *p;
}
====================================

With "--enable-checking" I get the following error message:
bug.cc: In function `void foo(const double*)':
bug.cc:4: internal compiler error: tree check: expected ssa_name, have var_decl
in need_to_preserve_store, at tree-ssa-dce.c:187
Please submit a full bug report, [etc.]

I'll try to get rid of the include.