[Bug tree-optimization/32044] [4.3/4.4 Regression] final value replacement too aggressive for e.g. targets with no native div/mod insns

[steven at gcc dot gnu dot org]

------- Comment #55 from steven at gcc dot gnu dot org  2008-12-10 21:27 -------
// This is the test case from PR38453.
// See comment #0 of that bug for further information:
// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38453#c0

typedef struct 
{
  int lc;
  int pb;
} bar;

void foo(bar *propsRes, const unsigned char *propsData)
{
    unsigned char prop0;
    prop0 = propsData[0];

    while (prop0 >= 45) {
        propsRes->pb++;
        prop0-=45;
    }
    propsRes->lc = prop0;
}


int main(int argc, char **argv)
{
    bar propsRes;
    unsigned char propsData[1024];
    foo(&propsRes, propsData);
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32044