diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 47 |
1 files changed, 16 insertions, 31 deletions
diff --git a/gcc/expr.c b/gcc/expr.c index ffcf078916a..1309868b1e3 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -3405,13 +3405,10 @@ get_subtarget (rtx x) ? 0 : x); } -/* Expand an assignment that stores the value of FROM into TO. - If WANT_VALUE is nonzero, return an rtx for the value of TO. - (If the value is constant, this rtx is a constant.) - Otherwise, the returned value is NULL_RTX. */ +/* Expand an assignment that stores the value of FROM into TO. */ -rtx -expand_assignment (tree to, tree from, int want_value) +void +expand_assignment (tree to, tree from) { rtx to_rtx = 0; rtx result; @@ -3421,7 +3418,7 @@ expand_assignment (tree to, tree from, int want_value) if (TREE_CODE (to) == ERROR_MARK) { result = expand_expr (from, NULL_RTX, VOIDmode, 0); - return want_value ? result : NULL_RTX; + return; } /* Assignment of a structure component needs special treatment @@ -3449,9 +3446,6 @@ expand_assignment (tree to, tree from, int want_value) /* If we are going to use store_bit_field and extract_bit_field, make sure to_rtx will be safe for multiple use. */ - if (mode1 == VOIDmode && want_value) - tem = stabilize_reference (tem); - orig_to_rtx = to_rtx = expand_expr (tem, NULL_RTX, VOIDmode, 0); if (offset != 0) @@ -3513,7 +3507,7 @@ expand_assignment (tree to, tree from, int want_value) } /* Optimize bitfld op= val in certain cases. */ - while (mode1 == VOIDmode && !want_value + while (mode1 == VOIDmode && bitsize > 0 && bitsize < BITS_PER_WORD && GET_MODE_BITSIZE (GET_MODE (to_rtx)) <= BITS_PER_WORD && !TREE_SIDE_EFFECTS (to) @@ -3616,7 +3610,7 @@ expand_assignment (tree to, tree from, int want_value) emit_move_insn (str_rtx, result); free_temp_slots (); pop_temp_slots (); - return NULL_RTX; + return; default: break; @@ -3626,11 +3620,7 @@ expand_assignment (tree to, tree from, int want_value) } result = store_field (to_rtx, bitsize, bitpos, mode1, from, - (want_value - /* Spurious cast for HPUX compiler. */ - ? ((enum machine_mode) - TYPE_MODE (TREE_TYPE (to))) - : VOIDmode), + VOIDmode, unsignedp, TREE_TYPE (tem), get_alias_set (to)); preserve_temp_slots (result); @@ -3639,11 +3629,7 @@ expand_assignment (tree to, tree from, int want_value) /* If the value is meaningful, convert RESULT to the proper mode. Otherwise, return nothing. */ - return (want_value ? convert_modes (TYPE_MODE (TREE_TYPE (to)), - TYPE_MODE (TREE_TYPE (from)), - result, - TYPE_UNSIGNED (TREE_TYPE (to))) - : NULL_RTX); + return; } /* If the rhs is a function call and its value is not an aggregate, @@ -3684,7 +3670,7 @@ expand_assignment (tree to, tree from, int want_value) preserve_temp_slots (to_rtx); free_temp_slots (); pop_temp_slots (); - return want_value ? to_rtx : NULL_RTX; + return; } /* Ordinary treatment. Expand TO to get a REG or MEM rtx. @@ -3711,7 +3697,7 @@ expand_assignment (tree to, tree from, int want_value) preserve_temp_slots (to_rtx); free_temp_slots (); pop_temp_slots (); - return want_value ? to_rtx : NULL_RTX; + return; } /* In case we are returning the contents of an object which overlaps @@ -3737,17 +3723,17 @@ expand_assignment (tree to, tree from, int want_value) preserve_temp_slots (to_rtx); free_temp_slots (); pop_temp_slots (); - return want_value ? to_rtx : NULL_RTX; + return; } /* Compute FROM and store the value in the rtx we got. */ push_temp_slots (); - result = store_expr (from, to_rtx, want_value); + result = store_expr (from, to_rtx, 0); preserve_temp_slots (result); free_temp_slots (); pop_temp_slots (); - return want_value ? result : NULL_RTX; + return; } /* Generate code for computing expression EXP, @@ -4732,7 +4718,7 @@ store_constructor (tree exp, rtx target, int cleared, HOST_WIDE_INT size) the loop. */ expand_assignment (index, build2 (PLUS_EXPR, TREE_TYPE (index), - index, integer_one_node), 0); + index, integer_one_node)); emit_jump (loop_start); @@ -8093,14 +8079,13 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode, expand_assignment (lhs, convert (TREE_TYPE (rhs), (TREE_CODE (rhs) == BIT_IOR_EXPR ? integer_one_node - : integer_zero_node)), - 0); + : integer_zero_node))); do_pending_stack_adjust (); emit_label (label); return const0_rtx; } - expand_assignment (lhs, rhs, 0); + expand_assignment (lhs, rhs); return const0_rtx; } |