diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 29 |
1 files changed, 18 insertions, 11 deletions
@@ -172,7 +172,9 @@ static void do_jump_by_parts_equality PARAMS ((tree, rtx, rtx)); static void do_compare_and_jump PARAMS ((tree, enum rtx_code, enum rtx_code, rtx, rtx)); static rtx do_store_flag PARAMS ((tree, rtx, enum machine_mode, int)); +#ifdef PUSH_ROUNDING static void emit_single_push_insn PARAMS ((enum machine_mode, rtx, tree)); +#endif /* Record for each mode whether we can move a register directly to or from an object of that mode in memory. If we can't, we won't try @@ -1387,13 +1389,12 @@ convert_modes (mode, oldmode, x, unsignedp) #define MOVE_MAX_PIECES MOVE_MAX #endif -/* Generate several move instructions to copy LEN bytes - from block FROM to block TO. (These are MEM rtx's with BLKmode). - The caller must pass FROM and TO - through protect_from_queue before calling. +/* Generate several move instructions to copy LEN bytes from block FROM to + block TO. (These are MEM rtx's with BLKmode). The caller must pass FROM + and TO through protect_from_queue before calling. - When TO is NULL, the emit_single_push_insn is used to push the - FROM to stack. + If PUSH_ROUNDING is defined and TO is NULL, emit_single_push_insn is + used to push FROM to the stack. ALIGN is maximum alignment we can assume. */ @@ -1600,7 +1601,13 @@ move_by_pieces_1 (genfun, mode, data) if (data->to) emit_insn ((*genfun) (to1, from1)); else - emit_single_push_insn (mode, from1, NULL); + { +#ifdef PUSH_ROUNDING + emit_single_push_insn (mode, from1, NULL); +#else + abort (); +#endif + } if (HAVE_POST_INCREMENT && data->explicit_inc_to > 0) emit_insn (gen_add2_insn (data->to_addr, GEN_INT (size))); @@ -3144,14 +3151,16 @@ get_push_address (size) return copy_to_reg (temp); } +#ifdef PUSH_ROUNDING + /* Emit single push insn. */ + static void emit_single_push_insn (mode, x, type) rtx x; enum machine_mode mode; tree type; { -#ifdef PUSH_ROUNDING rtx dest_addr; unsigned rounded_size = PUSH_ROUNDING (GET_MODE_SIZE (mode)); rtx dest; @@ -3196,10 +3205,8 @@ emit_single_push_insn (mode, x, type) set_mem_alias_set (dest, 0); } emit_move_insn (dest, x); -#else - abort(); -#endif } +#endif /* Generate code to push X onto the stack, assuming it has mode MODE and type TYPE. |