#define FIRM_BE_IA32_ARCHITECTURE_H
typedef struct {
+ /** optimize for size */
+ unsigned optimize_size:1;
/** use leave in function epilogue */
unsigned use_leave:1;
/** use inc, dec instead of add ,1 and add, -1 */
unsigned use_fucomi:1;
/** use cmovXX instructions */
unsigned use_cmov:1;
+ /** mode_D moves instead of 2 integer moves */
+ unsigned use_modeD_moves:1;
+ /** use add esp, 4 instead of pop */
+ unsigned use_add_esp_4:1;
+ /** use add esp, 8 instead of 2 pop's */
+ unsigned use_add_esp_8:1;
+ /** use sub esp, 4 instead of push */
+ unsigned use_sub_esp_4:1;
+ /** use sub esp, 8 instead of 2 push's */
+ unsigned use_sub_esp_8:1;
+ /** use imul mem, imm32 instruction (slow on some cpu's */
+ unsigned use_imul_mem_imm32:1;
+ /** use pxor instead xorps/xorpd */
+ unsigned use_pxor:1;
+ /** use mov reg, 0 instruction */
+ unsigned use_mov_0:1;
+ /** pad Ret instructions that are destination of conditional jump or directly preceded
+ by other jump instruction. */
+ unsigned use_pad_return:1;
+ /** use the bt instruction */
+ unsigned use_bt:1;
+ /** use fisttp instruction (requieres SSE3) */
+ unsigned use_fisttp:1;
/** optimize calling convention where possible */
unsigned optimize_cc:1;
/**
unsigned function_alignment;
/** alignment for labels (which are expected to be frequent jump targets) */
unsigned label_alignment;
+ /** maximum skip alignment for labels (which are expected to be frequent jump targets) */
+ unsigned label_alignment_max_skip;
/** if a blocks execfreq is factor higher than it's predecessor then align
- * the blocks label (0 switches of label alignment) */
+ * the blocks label (0 switches off label alignment) */
double label_alignment_factor;
} ia32_code_gen_config_t;