gcc/testsuite/gcc.target/arm/combine-cmp-shift.c

   1 /* { dg-skip-if "incompatible options" { arm*-*-* } { "-march=*" } { "-march=armv7-a" } } */
   2 /* { dg-options "-O2 -mcpu=cortex-a8" }  */
   3 /* { dg-final { scan-assembler "cmp\tr\[0-9\]*, r\[0-9\]*, asr #31" } } */
   4
   5 typedef int SItype __attribute__ ((mode (SI)));
   6 typedef int DItype __attribute__ ((mode (DI)));
   7 void abort (void);
   8
   9 SItype
  10 __mulvsi3 (SItype a, SItype b)
  11 {
  12   const DItype w = (DItype) a * (DItype) b;
  13   if ((SItype) (w >> (4 * 8)) != (SItype) w >> ((4 * 8) - 1))
  14     abort ();
  15   return w;
  16 }