optimization/9085: gcc 3.2 unable to find register to spill when optimizing

[reichelt@igpm.rwth-aachen.de]

Synopsis: gcc 3.2 unable to find register to spill when optimizing

State-Changed-From-To: open->analyzed
State-Changed-By: reichelt
State-Changed-When: Mon Jan  6 04:06:53 2003
State-Changed-Why:
    Confirmed (on i686-pc-linux-gnu).
    
    A cleaned-up testcase is the following:
    
    ------------------------snip here------------------------
    struct A
    {
        unsigned char c;
        int i, j;
    
        void foo (unsigned, unsigned, unsigned);
    };
    
    void A::foo (unsigned c0, unsigned i0, unsigned j0)
    {
        c = c0%3;
        i = i0;
        j = j0;
    }
    ------------------------snip here------------------------
    
    The bug is present since at least gcc 2.95.x and is still
    present in the 3.3 branch and mainline (3.4 20021230).

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9085