gcc/testsuite/gcc.dg/pr110915-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-ifcombine -Wno-psabi" } */
   3
   4 #include <limits.h>
   5
   6 #define vector __attribute__((vector_size(sizeof(unsigned)*2)))
   7
   8 vector signed and1(vector unsigned x, vector unsigned y)
   9 {
  10   /* (x > y) & (x != 0)  --> x > y */
  11   return (x > y) & (x != 0);
  12 }
  13
  14 vector signed and2(vector unsigned x, vector unsigned y)
  15 {
  16   /* (x < y) & (x != UINT_MAX)  --> x < y */
  17   return (x < y) & (x != UINT_MAX);
  18 }
  19
  20 vector signed and3(vector signed x, vector signed y)
  21 {
  22   /* (x > y) & (x != INT_MIN)  --> x > y */
  23   return (x > y) & (x != INT_MIN);
  24 }
  25
  26 vector signed and4(vector signed x, vector signed y)
  27 {
  28   /* (x < y) & (x != INT_MAX)  --> x < y */
  29   return (x < y) & (x != INT_MAX);
  30 }
  31
  32 /* { dg-final { scan-tree-dump-not " != " "ifcombine" } } */