1 /* { dg-do compile } */ 2 /* { dg-options "-O1 -fvariable-expansion-in-unroller -funroll-loops -fcompare-debug" } */ 3 /* { dg-xfail-if "" { powerpc-ibm-aix* } { "*" } { "" } } */ 4 sum(int * buf,int len)5int sum(int *buf, int len) 6 { 7 int s = 0; 8 while (--len > 0) s += *buf++; 9 return s; 10 } 11