gcc/testsuite/gcc.target/i386/pr27971.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 unsigned array[4];
   5
   6 #ifdef _WIN64
   7 __extension__ typedef unsigned long long TYPE;
   8 #else
   9 #define TYPE unsigned long
  10 #endif
  11
  12 unsigned foo(TYPE x)
  13 {
  14           return array[(x>>2)&3ul];
  15 }
  16
  17 /* { dg-final { scan-assembler-not "shr\[^\\n\]*2" } } */
  18 /* { dg-final { scan-assembler "and\[^\\n\]*12" } } */