gcc-4_9/gcc/testsuite/gcc.target/mips/maddu-3.c

   1 /* { dg-do compile } */
   2 /* This test requires widening_mul */
   3 /* { dg-options "(HAS_MADD) -mgp32 -fexpensive-optimizations" } */
   4 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
   5 /* { dg-final { scan-assembler-times "\tmaddu\t" 3 } } */
   6
   7 typedef unsigned int ui;
   8 typedef unsigned long long ull;
   9
  10 NOMIPS16 ull
  11 f1 (ui x, ui y, ull z)
  12 {
  13   return (ull) x * y + z;
  14 }
  15
  16 NOMIPS16 ull
  17 f2 (ui x, ui y, ull z)
  18 {
  19   return z + (ull) y * x;
  20 }
  21
  22 NOMIPS16 ull
  23 f3 (ui x, ui y, ull z)
  24 {
  25   ull t = (ull) x * y;
  26   int temp = 5;
  27   if (temp == 5)
  28     z += t;
  29   return z;
  30 }