gcc/testsuite/gcc.target/mips/fix-r4000-10.c

   1 /* ??? At the moment, lower-subreg.c decomposes the copy of the multiplication
   2    result to $2, which prevents the register allocators from storing the
   3    multiplication result in $2.  */
   4 /* { dg-options "-mips3 -mfix-r4000 -mgp64 -O2 -fno-split-wide-types -dp -EL" } */
   5 typedef unsigned long long uint64_t;
   6 typedef unsigned int uint128_t __attribute__((mode(TI)));
   7 uint128_t foo (uint64_t x, uint64_t y) { return (uint128_t) x * y; }
   8 /* { dg-final { scan-assembler "[concat {\tdmultu\t\$[45],\$[45][^\n]+umulditi3_r4000[^\n]+\n\tmflo\t\$2\n\tmfhi\t\$3\n}]" } } */