Beispiel #1
0
Datei: gen.c Projekt: irori/8cc
static void emit_literal_string(Node *node) {
    SAVE;
    if (!node->slabel) {
        node->slabel = make_label();
        emit_noindent(".data");
        emit_label(node->slabel);
        emit(".string \"%s\"", quote_cstring(node->sval));
        emit_noindent(".text");
    }
    emit("lea %s(%%rip), %%rax", node->slabel);
}
Beispiel #2
0
Datei: gen.c Projekt: irori/8cc
static void emit_literal(Node *node) {
    SAVE;
    switch (node->ctype->type) {
    case CTYPE_BOOL:
    case CTYPE_CHAR:
        emit("mov $%d, %%rax", node->ival);
        break;
    case CTYPE_INT:
        emit("mov $%d, %%rax", node->ival);
        break;
    case CTYPE_LONG:
    case CTYPE_LLONG: {
        emit("mov $%lu, %%rax", node->ival);
        break;
    }
    case CTYPE_FLOAT: {
        if (!node->flabel) {
            node->flabel = make_label();
            float fval = node->fval;
            int *p = (int *)&fval;
            emit_noindent(".data");
            emit_label(node->flabel);
            emit(".long %d", *p);
            emit_noindent(".text");
        }
        emit("movss %s(%%rip), %%xmm0", node->flabel);
        break;
    }
    case CTYPE_DOUBLE:
    case CTYPE_LDOUBLE: {
        if (!node->flabel) {
            node->flabel = make_label();
            int *fval = (int *)&node->fval;
            emit_noindent(".data");
            emit_label(node->flabel);
            emit(".long %d", fval[0]);
            emit(".long %d", fval[1]);
            emit_noindent(".text");
        }
        emit("movsd %s(%%rip), %%xmm0", node->flabel);
        break;
    }
    default:
        error("internal error");
    }
}
Beispiel #3
0
Datei: gen.c Projekt: 4ker/8cc
static void emit_literal(Node *node) {
    SAVE;
    switch (node->ty->kind) {
    case KIND_BOOL:
    case KIND_CHAR:
    case KIND_SHORT:
        emit("mov $%u, #rax", node->ival);
        break;
    case KIND_INT:
        emit("mov $%u, #rax", node->ival);
        break;
    case KIND_LONG:
    case KIND_LLONG: {
        emit("mov $%lu, #rax", node->ival);
        break;
    }
    case KIND_FLOAT: {
        if (!node->flabel) {
            node->flabel = make_label();
            float fval = node->fval;
            emit_noindent(".data");
            emit_label(node->flabel);
            emit(".long %d", *(uint32_t *)&fval);
            emit_noindent(".text");
        }
        emit("movss %s(#rip), #xmm0", node->flabel);
        break;
    }
    case KIND_DOUBLE:
    case KIND_LDOUBLE: {
        if (!node->flabel) {
            node->flabel = make_label();
            emit_noindent(".data");
            emit_label(node->flabel);
            emit(".quad %lu", *(uint64_t *)&node->fval);
            emit_noindent(".text");
        }
        emit("movsd %s(#rip), #xmm0", node->flabel);
        break;
    }
    case KIND_ARRAY: {
        if (!node->slabel) {
            node->slabel = make_label();
            emit_noindent(".data");
            emit_label(node->slabel);
            emit(".string \"%s\"", quote_cstring_len(node->sval, node->ty->size));
            emit_noindent(".text");
        }
        emit("lea %s(#rip), #rax", node->slabel);
        break;
    }
    default:
        error("internal error");
    }
}