/**
* Generate the routine prologue.
*
- * @param self The callback object.
- * @param mem A pointer to the mem node. Update this if you define new memory.
- * @param reg_map A map mapping all callee_save/ignore/parameter registers to their defining nodes.
+ * @param self The callback object.
+ * @param mem A pointer to the mem node. Update this if you define new memory.
+ * @param reg_map A map mapping all callee_save/ignore/parameter registers to their defining nodes.
+ * @param stack_bias Points to the current stack bias, can be modified if needed.
*
- * @return The register which shall be used as a stack frame base.
+ * @return The register which shall be used as a stack frame base.
*
* All nodes which define registers in @p reg_map must keep @p reg_map current.
*/
-static const arch_register_t *ia32_abi_prologue(void *self, ir_node **mem, pmap *reg_map)
+static const arch_register_t *ia32_abi_prologue(void *self, ir_node **mem, pmap *reg_map, int *stack_bias)
{
ia32_abi_env_t *env = self;
ia32_code_gen_t *cg = ia32_current_cg;
arch_set_irn_register(arch_env, curr_sp, arch_env->sp);
set_ia32_flags(push, arch_irn_flags_ignore);
+ /* this modifies the stack bias, because we pushed 32bit */
+ *stack_bias -= 4;
+
/* move esp to ebp */
curr_bp = be_new_Copy(arch_env->bp->reg_class, irg, bl, curr_sp);
be_set_constr_single_reg(curr_bp, BE_OUT_POS(0), arch_env->bp);
ir_node *leave;
/* leave */
- leave = new_rd_ia32_Leave(NULL, irg, bl, curr_sp, curr_bp);
+ leave = new_rd_ia32_Leave(NULL, irg, bl, curr_bp);
set_ia32_flags(leave, arch_irn_flags_ignore);
curr_bp = new_r_Proj(irg, bl, leave, mode_bp, pn_ia32_Leave_frame);
curr_sp = new_r_Proj(irg, bl, leave, get_irn_mode(curr_sp), pn_ia32_Leave_stack);
#ifdef FIRM_GRGEN_BE
case TRANSFORMER_PBQP:
+ case TRANSFORMER_RAND:
// disable CSE, because of two-step node-construction
set_opt_cse(0);
&ia32_gp_regs[REG_ESP], /* stack pointer register */
&ia32_gp_regs[REG_EBP], /* base pointer register */
-1, /* stack direction */
- 4, /* power of two stack alignment, 2^4 == 16 */
+ 2, /* power of two stack alignment, 2^2 == 4 */
NULL, /* main environment */
7, /* costs for a spill instruction */
5, /* costs for a reload instruction */
{ "default", TRANSFORMER_DEFAULT },
#ifdef FIRM_GRGEN_BE
{ "pbqp", TRANSFORMER_PBQP },
+ { "random", TRANSFORMER_RAND },
#endif
{ NULL, 0 }
};