gcc/testsuite/gcc.dg/tree-ssa/pr31261.c

   1 /* PR tree-optimization/31261 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-original" } */
   4
   5 unsigned int
   6 f1 (unsigned int a)
   7 {
   8   return (8 - (a & 7)) & 7;
   9 }
  10
  11 long int
  12 f2 (long int b)
  13 {
  14   return (16 + (b & 7)) & 15;
  15 }
  16
  17 char
  18 f3 (char c)
  19 {
  20   return -(c & 63) & 31;
  21 }
  22
  23 int
  24 f4 (int d)
  25 {
  26   return (12 - (d & 15)) & 7;
  27 }
  28
  29 int
  30 f5 (int e)
  31 {
  32   return (12 - (e & 7)) & 15;
  33 }
  34
  35 /* { dg-final { scan-tree-dump-times "return -a \& 7;" 1 "original" } } */
  36 /* { dg-final { scan-tree-dump-times "return b \& 7;" 1 "original" } } */
  37 /* { dg-final { scan-tree-dump-times "return \\(char\\) -\\(unsigned char\\) c \& 31;" 1 "original" } } */
  38 /* { dg-final { scan-tree-dump-times "return \\(int\\) \\(12 - \\(unsigned int\\) d\\) \& 7;" 1 "original" { target { ! int16 } } } } */
  39 /* { dg-final { scan-tree-dump-times "return \\(int\\) \\(12 - \\(unsigned short\\) d\\) \& 7;" 1 "original" { target { int16 } } } } */
  40 /* { dg-final { scan-tree-dump-times "return 12 - \\(e \& 7\\) \& 15;" 1 "original" } } */