gcc/testsuite/gcc.dg/tree-ssa/reassoc-49.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized -ftree-vectorize" } */
   3
   4 #define MODIFY
   5 #define STORE
   6 #include "reassoc-46.h"
   7
   8 /* Check that if the loop accumulator is both modified using a chain of
   9    operations other than addition and stored into a global variable, its new
  10    value is still added last.  */
  11 /* { dg-final { scan-tree-dump-times {(?:vect_)?sum_[\d._]+ = (?:(?:vect_)?_[\d._]+ \+ (?:vect_)?sum_[\d._]+|(?:vect_)?sum_[\d._]+ \+ (?:vect_)?_[\d._]+)} 1 "optimized" } } */