gcc-4.9/gcc/testsuite/gcc.target/arm/combine-cmp-shift.c


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/* { dg-skip-if "incompatible options" { arm*-*-* } { "-march=*" } { "-march=armv7-a" } } */
/* { dg-options "-O2 -mcpu=cortex-a8" }  */
/* { dg-final { scan-assembler "cmp\tr\[0-9\]*, r\[0-9\]*, asr #31" } } */

typedef int SItype __attribute__ ((mode (SI)));
typedef int DItype __attribute__ ((mode (DI)));
void abort (void);

SItype
__mulvsi3 (SItype a, SItype b)
{
  const DItype w = (DItype) a * (DItype) b;
  if ((SItype) (w >> (4 * 8)) != (SItype) w >> ((4 * 8) - 1))
    abort ();
  return w;
}