gcc/testsuite/gcc.target/arm/g2.c

   1 /* Verify that hardware multiply is preferred on XScale. */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2" } */
   4 /* { dg-require-effective-target arm_arch_xscale_arm_ok } */
   5 /* { dg-add-options arm_arch_xscale_arm } */
   6
   7
   8 /* Brett Gaines' test case. */
   9 unsigned BCPL(unsigned) __attribute__ ((naked));
  10 unsigned BCPL(unsigned seed)
  11 {
  12     /* Best code would be:
  13        ldr r1, =2147001325
  14        ldr r2, =715136305
  15        mla r0, r1, r0, r2
  16        mov pc, lr */
  17
  18     return seed * 2147001325U + 715136305U;
  19 }
  20
  21 /* { dg-final { scan-assembler "mla\[   ].*" } } */