/**
* @file
* @brief emit assembler for a backend graph
+ * @author Hannes Rapp, Matthias Braun
* @version $Id$
*/
#include "config.h"
return reg;
}
-static bool is_valid_immediate(int32_t value)
-{
- return -4096 <= value && value < 4096;
-}
-
void sparc_emit_immediate(const ir_node *node)
{
const sparc_attr_t *attr = get_sparc_attr_const(node);
if (entity == NULL) {
int32_t value = attr->immediate_value;
- assert(is_valid_immediate(value));
+ assert(sparc_is_value_imm_encodeable(value));
be_emit_irprintf("%d", value);
} else {
be_emit_cstring("%lo(");
}
}
-static bool is_stack_pointer_relative(const ir_node *node)
-{
- const arch_register_t *sp = &sparc_registers[REG_SP];
- return (is_sparc_St(node) && get_in_reg(node, n_sparc_St_ptr) == sp)
- || (is_sparc_Ld(node) && get_in_reg(node, n_sparc_Ld_ptr) == sp);
-}
-
/**
* emit SP offset
*/
sparc_emit_source_register(node, offset_node_pos);
} else if (attr->is_frame_entity) {
int32_t offset = attr->base.immediate_value;
- /* bad hack: the real stack stuff is behind the always-there spill
- * space for the register window and stack */
- if (is_stack_pointer_relative(node))
- offset += SPARC_MIN_STACKSIZE;
if (offset != 0) {
- assert(is_valid_immediate(offset));
+ assert(sparc_is_value_imm_encodeable(offset));
be_emit_irprintf("%+ld", offset);
}
} else if (attr->base.immediate_value != 0
*/
static void emit_be_IncSP(const ir_node *irn)
{
- int offs = -be_get_IncSP_offset(irn);
+ int offset = be_get_IncSP_offset(irn);
- if (offs == 0)
+ if (offset == 0)
return;
/* SPARC stack grows downwards */
- if (offs < 0) {
+ if (offset < 0) {
be_emit_cstring("\tsub ");
- offs = -offs;
+ offset = -offset;
} else {
be_emit_cstring("\tadd ");
}
sparc_emit_source_register(irn, 0);
- be_emit_irprintf(", %d", offs);
+ be_emit_irprintf(", %d", -offset);
be_emit_cstring(", ");
sparc_emit_dest_register(irn, 0);
be_emit_finish_line_gas(irn);
static void emit_sparc_FrameAddr(const ir_node *node)
{
- const sparc_attr_t *attr = get_sparc_attr_const(node);
+ const sparc_attr_t *attr = get_sparc_attr_const(node);
+ int32_t offset = attr->immediate_value;
- // no need to fix offset as we are adressing via the framepointer
- if (attr->immediate_value >= 0) {
+ if (offset < 0) {
be_emit_cstring("\tadd ");
sparc_emit_source_register(node, 0);
be_emit_cstring(", ");
- be_emit_irprintf("%ld", attr->immediate_value);
+ assert(sparc_is_value_imm_encodeable(offset));
+ be_emit_irprintf("%ld", offset);
} else {
be_emit_cstring("\tsub ");
sparc_emit_source_register(node, 0);
be_emit_cstring(", ");
- be_emit_irprintf("%ld", -attr->immediate_value);
+ assert(sparc_is_value_imm_encodeable(-offset));
+ be_emit_irprintf("%ld", -offset);
}
be_emit_cstring(", ");