gcc/testsuite/g++.dg/tree-ssa/pr31307.C

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-optimized" } */
   3
   4 union MY_M128
   5 {
   6   double i;
   7 };
   8
   9 struct RegFile
  10 {
  11   MY_M128 dst[4];
  12 };
  13
  14 __inline__ __attribute__((always_inline)) static void
  15 MEM_OPT_LOAD(MY_M128* reg, double* mem)
  16 {
  17   reg[0].i = *mem;
  18 }
  19
  20 void _ia32_movntdq (double *, double);
  21
  22 __inline__ __attribute__((always_inline)) static void
  23 MEM_OPT_STORE(MY_M128* reg, double* mem)
  24 {
  25   _ia32_movntdq ((double*)mem, (double)reg[0].i);
  26 }
  27
  28 double _mm_adds_epu8 (double __A, double __B);
  29
  30 int test(unsigned char *d)
  31 {
  32   RegFile r;
  33   MEM_OPT_LOAD((r.dst) , ((double*) d));
  34   r.dst[0].i = _mm_adds_epu8(r.dst[0].i, r.dst[0].i);
  35   MEM_OPT_STORE((r.dst), (double*) d);
  36   return 0;
  37 }
  38
  39 /* { dg-final { scan-tree-dump-not "r.dst" "optimized" } } */