diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 39 |
1 files changed, 35 insertions, 4 deletions
@@ -2964,8 +2964,39 @@ emit_move_insn_1 (x, y) X with a reference to the stack pointer. */ if (push_operand (x, GET_MODE (x))) { - anti_adjust_stack (GEN_INT (GET_MODE_SIZE (GET_MODE (x)))); - x = change_address (x, VOIDmode, stack_pointer_rtx); + rtx temp; + enum rtx_code code; + + /* Do not use anti_adjust_stack, since we don't want to update + stack_pointer_delta. */ + temp = expand_binop (Pmode, +#ifdef STACK_GROWS_DOWNWARD + sub_optab, +#else + add_optab, +#endif + stack_pointer_rtx, + GEN_INT + (PUSH_ROUNDING (GET_MODE_SIZE (GET_MODE (x)))), + stack_pointer_rtx, + 0, + OPTAB_LIB_WIDEN); + if (temp != stack_pointer_rtx) + emit_move_insn (stack_pointer_rtx, temp); + + code = GET_CODE (XEXP (x, 0)); + /* Just hope that small offsets off SP are OK. */ + if (code == POST_INC) + temp = gen_rtx_PLUS (Pmode, stack_pointer_rtx, + GEN_INT (-(HOST_WIDE_INT) + GET_MODE_SIZE (GET_MODE (x)))); + else if (code == POST_DEC) + temp = gen_rtx_PLUS (Pmode, stack_pointer_rtx, + GEN_INT (GET_MODE_SIZE (GET_MODE (x)))); + else + temp = stack_pointer_rtx; + + x = change_address (x, VOIDmode, temp); } #endif @@ -3133,7 +3164,7 @@ emit_single_push_insn (mode, x, type) { #ifdef PUSH_ROUNDING rtx dest_addr; - int rounded_size = PUSH_ROUNDING (GET_MODE_SIZE (mode)); + unsigned rounded_size = PUSH_ROUNDING (GET_MODE_SIZE (mode)); rtx dest; if (GET_MODE_SIZE (mode) == rounded_size) @@ -3142,7 +3173,7 @@ emit_single_push_insn (mode, x, type) { #ifdef STACK_GROWS_DOWNWARD dest_addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx, - GEN_INT (-rounded_size)); + GEN_INT (-(HOST_WIDE_INT)rounded_size)); #else dest_addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx, GEN_INT (rounded_size)); |