config/s390/s390.c

4114 init_alignment_context (struct alignment_context *ac, rtx mem,
4117   ac->shift = GEN_INT (GET_MODE_SIZE (SImode) - GET_MODE_SIZE (mode));
4118   ac->aligned = (MEM_ALIGN (mem) >= GET_MODE_BITSIZE (SImode));
4120   if (ac->aligned)
4121     ac->memsi = adjust_address (mem, SImode, 0); /* Memory is aligned.  */
4135       ac->memsi = gen_rtx_MEM (SImode, align);
4136       MEM_VOLATILE_P (ac->memsi) = MEM_VOLATILE_P (mem);
4137       set_mem_alias_set (ac->memsi, ALIAS_SET_MEMORY_BARRIER);
4138       set_mem_align (ac->memsi, GET_MODE_BITSIZE (SImode));
4145       ac->shift = expand_simple_binop (SImode, MINUS, ac->shift, byteoffset,
4150   ac->shift = expand_simple_binop (SImode, MULT, ac->shift, GEN_INT (BITS_PER_UNIT),
4153   ac->modemask = expand_simple_binop (SImode, ASHIFT,
4154 				     GEN_INT (GET_MODE_MASK (mode)), ac->shift,
4156   ac->modemaski = expand_simple_unop (SImode, NOT, ac->modemask, NULL_RTX, 1);
4168   struct alignment_context ac;
4177   init_alignment_context (&ac, mem, mode);
4180   if (!(ac.aligned && MEM_P (cmp)))
4181     cmp = s390_expand_mask_and_shift (cmp, mode, ac.shift);
4182   if (!(ac.aligned && MEM_P (new)))
4183     new = s390_expand_mask_and_shift (new, mode, ac.shift);
4186   val = expand_simple_binop (SImode, AND, ac.memsi, ac.modemaski,
4197   if (ac.aligned && MEM_P (cmp))
4205   if (ac.aligned && MEM_P (new))
4215   s390_emit_jump (csend, s390_emit_compare_and_swap (EQ, res, ac.memsi,
4219   resv = expand_simple_binop (SImode, AND, res, ac.modemaski,
4229   convert_move (target, expand_simple_binop (SImode, LSHIFTRT, res, ac.shift,
4243   struct alignment_context ac;
4252   init_alignment_context (&ac, mem, mode);
4256   if (!(ac.aligned && code == SET && MEM_P (val)))
4257     val = s390_expand_mask_and_shift (val, mode, ac.shift);
4263     val = expand_simple_binop (SImode, XOR, val, ac.modemaski,
4267   cmp = force_reg (SImode, ac.memsi);
4280       val = expand_simple_binop (SImode, AND, val, ac.modemask,
4284       if (ac.aligned && MEM_P (val))
4288 	  new = expand_simple_binop (SImode, AND, new, ac.modemaski,
4301       new = expand_simple_binop (SImode, XOR, new, ac.modemask,
4311 						      ac.memsi, cmp, new));
4316 					       after ? new : cmp, ac.shift,