Added routine to evaluate operands of binary operator
This commit is contained in:
ceriel
parent
352c5c581b
commit
cf3bcb5e63
1 changed files with 58 additions and 71 deletions
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@ -117,8 +117,7 @@ EVAL(expr, val, code, true_label, false_label)
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int + int, pointer + int, pointer + long,
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long + long, double + double
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*/
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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operands(expr, gencode);
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if (gencode) {
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switch (tp->tp_fund) {
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case INT:
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@ -169,8 +168,7 @@ EVAL(expr, val, code, true_label, false_label)
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int - int, pointer - int, pointer - long,
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pointer - pointer, long - long, double - double
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*/
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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operands(expr, gencode);
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if (!gencode)
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break;
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switch (tp->tp_fund) {
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@ -207,11 +205,10 @@ EVAL(expr, val, code, true_label, false_label)
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if (gencode && right->ex_class == String) {
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C_loi((arith)1);
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}
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break;
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}
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else { /* binary */
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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if (gencode)
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operands(expr, gencode);
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if (gencode) {
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switch (tp->tp_fund) {
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case INT:
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case LONG:
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@ -224,7 +221,6 @@ EVAL(expr, val, code, true_label, false_label)
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case FLOAT:
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case DOUBLE:
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case LNGDBL:
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/*C_mlf(double_size);*/
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C_mlf(tp->tp_size);
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break;
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default:
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@ -233,8 +229,7 @@ EVAL(expr, val, code, true_label, false_label)
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}
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break;
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case '/':
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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operands(expr, gencode);
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if (gencode)
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switch (tp->tp_fund) {
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case INT:
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@ -256,8 +251,7 @@ EVAL(expr, val, code, true_label, false_label)
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}
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break;
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case '%':
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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operands(expr, gencode);
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ASSERT(tp->tp_fund==INT || tp->tp_fund==LONG);
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if (gencode)
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if (tp->tp_unsigned)
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@ -266,8 +260,7 @@ EVAL(expr, val, code, true_label, false_label)
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C_rmi(tp->tp_size);
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break;
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case LEFT:
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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operands(expr, gencode);
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if (gencode)
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if (tp->tp_unsigned)
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C_slu(tp->tp_size);
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@ -275,8 +268,7 @@ EVAL(expr, val, code, true_label, false_label)
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C_sli(tp->tp_size);
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break;
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case RIGHT:
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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operands(expr, gencode);
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if (gencode)
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if (tp->tp_unsigned)
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C_sru(tp->tp_size);
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@ -289,8 +281,7 @@ EVAL(expr, val, code, true_label, false_label)
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case GREATEREQ:
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case EQUAL:
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case NOTEQUAL:
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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operands(expr, gencode);
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if (gencode) {
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/* The operands have the same type */
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arith size = left->ex_type->tp_size;
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@ -330,8 +321,7 @@ EVAL(expr, val, code, true_label, false_label)
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case '|':
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case '^':
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/* both operands should have type int */
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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operands(expr, gencode);
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if (gencode) {
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arith size = tp->tp_size;
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@ -487,11 +477,10 @@ EVAL(expr, val, code, true_label, false_label)
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while ( ex->ex_class == Oper &&
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ex->OP_OPER == PARCOMMA
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) {
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register struct expr *rght = ex->OP_RIGHT;
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EVAL(rght, RVAL,
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rght->ex_type->tp_size > 0,
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arith size = ex->OP_RIGHT->ex_type->tp_size;
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EVAL(ex->OP_RIGHT, RVAL, size > 0,
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NO_LABEL, NO_LABEL);
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ParSize += ATW(rght->ex_type->tp_size);
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ParSize += ATW(size);
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ex = ex->OP_LEFT;
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}
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EVAL(ex, RVAL, ex->ex_type->tp_size > 0,
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@ -531,18 +520,14 @@ EVAL(expr, val, code, true_label, false_label)
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break;
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}
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case '.':
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EVAL(left, LVAL, gencode, NO_LABEL, NO_LABEL);
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case ARROW:
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EVAL(left, oper == '.' ? LVAL : RVAL, gencode,
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NO_LABEL, NO_LABEL);
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ASSERT(is_cp_cst(right));
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if (gencode) {
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C_adp(right->VL_VALUE);
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}
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break;
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case ARROW:
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EVAL(left, RVAL, gencode, NO_LABEL, NO_LABEL);
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ASSERT(is_cp_cst(right));
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if (gencode)
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C_adp(right->VL_VALUE);
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break;
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case ',':
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EVAL(left, RVAL, FALSE, NO_LABEL, NO_LABEL);
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EVAL(right, RVAL, gencode, NO_LABEL, NO_LABEL);
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@ -816,10 +801,8 @@ assop(type, oper)
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*/
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store_val(vl, tp)
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register struct value *vl;
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struct type *tp;
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register struct type *tp;
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{
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arith size = tp->tp_size;
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int tpalign = tp->tp_align;
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int al_on_word;
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register int inword;
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register int indword;
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@ -827,12 +810,12 @@ store_val(vl, tp)
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if (vl->vl_class == Const) { /* absolute addressing */
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load_cst(val, pointer_size);
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store_block(size, tpalign);
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store_block(tp->tp_size, tp->tp_align);
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return;
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}
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al_on_word = (tpalign % word_align == 0);
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if (!(inword = (size == word_size && al_on_word)))
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indword = (size == dword_size && al_on_word);
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al_on_word = (tp->tp_align % word_align == 0);
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if (!(inword = (tp->tp_size == word_size && al_on_word)))
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indword = (tp->tp_size == dword_size && al_on_word);
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if (vl->vl_class == Name) {
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register struct idf *id = vl->vl_data.vl_idf;
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register struct def *df = id->id_def;
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@ -849,16 +832,16 @@ store_val(vl, tp)
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C_sde_dnam(id->id_text, val);
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else {
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C_lae_dnam(id->id_text, val);
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store_block(size, tpalign);
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store_block(tp->tp_size, tp->tp_align);
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}
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}
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else {
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ASSERT(df->df_sc != STATIC);
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if (inword || indword)
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StoreLocal(df->df_address + val, size);
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StoreLocal(df->df_address + val, tp->tp_size);
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else {
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AddrLocal(df->df_address + val);
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store_block(size, tpalign);
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store_block(tp->tp_size, tp->tp_align);
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}
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}
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}
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@ -873,7 +856,7 @@ store_val(vl, tp)
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C_sde_dlb(dlb, val);
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else {
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C_lae_dlb(dlb, val);
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store_block(size, tpalign);
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store_block(tp->tp_size, tp->tp_align);
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}
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}
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}
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@ -894,8 +877,6 @@ load_val(expr, rlval)
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{
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register struct type *tp = expr->ex_type;
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int rvalue = (rlval == RVAL && expr->ex_lvalue != 0);
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arith size = tp->tp_size;
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int tpalign = tp->tp_align;
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int al_on_word;
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register int inword, indword;
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register arith val = expr->VL_VALUE;
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@ -903,16 +884,16 @@ load_val(expr, rlval)
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if (expr->VL_CLASS == Const) {
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if (rvalue) { /* absolute addressing */
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load_cst(val, pointer_size);
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load_block(size, tpalign);
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load_block(tp->tp_size, tp->tp_align);
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}
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else /* integer, unsigned, long, enum etc */
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load_cst(val, size);
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load_cst(val, tp->tp_size);
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return;
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}
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if (rvalue) {
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al_on_word = (tpalign % word_align == 0);
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if (!(inword = (size == word_size && al_on_word)))
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indword = (size == dword_size && al_on_word);
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al_on_word = (tp->tp_align % word_align == 0);
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if (!(inword = (tp->tp_size == word_size && al_on_word)))
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indword = (tp->tp_size == dword_size && al_on_word);
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}
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if (expr->VL_CLASS == Label) {
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if (rvalue) {
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@ -923,7 +904,7 @@ load_val(expr, rlval)
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C_lde_dlb(expr->VL_LBL, val);
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else {
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C_lae_dlb(expr->VL_LBL, val);
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load_block(size, tpalign);
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load_block(tp->tp_size, tp->tp_align);
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}
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}
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@ -959,7 +940,7 @@ load_val(expr, rlval)
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C_lde_dnam(id->id_text, val);
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else {
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C_lae_dnam(id->id_text, val);
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load_block(size, tpalign);
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load_block(tp->tp_size, tp->tp_align);
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}
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}
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else {
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@ -971,10 +952,10 @@ load_val(expr, rlval)
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/* ASSERT(df->df_sc != STATIC); */
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if (rvalue) {
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if (inword || indword)
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LoadLocal(df->df_address + val, size);
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LoadLocal(df->df_address + val, tp->tp_size);
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else {
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AddrLocal(df->df_address + val);
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load_block(size, tpalign);
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load_block(tp->tp_size, tp->tp_align);
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}
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}
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else {
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@ -1003,5 +984,11 @@ load_cst(val, siz)
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}
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}
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operands(expr, gencode)
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register struct expr *expr;
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{
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EVAL(expr->OP_LEFT, RVAL, gencode, NO_LABEL, NO_LABEL);
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EVAL(expr->OP_RIGHT, RVAL, gencode, NO_LABEL, NO_LABEL);
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}
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#endif LINT
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