gcc/testsuite/gcc.dg/ipa/pr82001.c

   1 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
   2 /* { dg-options "-O2 -fdump-ipa-icf-details"  } */
   3
   4 int
   5 mullo (int a, int b)
   6 {
   7   asm("mul %%edx   # %%1 was %1"
   8       : "+"
   9         "a"(a),
  10         "+d"(b));
  11   return a;
  12 }
  13
  14 int
  15 mulhi (int a, int b)
  16 {
  17   asm("mul %%edx   # %%1 was %1" : "+d"(a), "+a"(b));
  18   return a;
  19 }
  20
  21 /* { dg-final { scan-ipa-dump "Equal symbols: 0" "icf"  } } */