+2003-10-02 Richard Sandiford <rsandifo@redhat.com>
+
+ * config/frv/frv.c (frv_issue_rate): New function.
+ (frv_pack_insns): Use it.
+ (TARGET_SCHED_ISSUE_RATE): Define.
+
2003-10-02 Steven Bosscher <s.bosscher@student.tudelft.nl>
* config/mcore/mcore.c: Convert to ISO C90 function declarations
int));
static int frv_registers_set_p PARAMS ((rtx, unsigned char [],
int));
+static int frv_issue_rate PARAMS ((void));
static int frv_use_dfa_pipeline_interface PARAMS ((void));
static void frv_pack_insns PARAMS ((void));
static void frv_function_prologue PARAMS ((FILE *, HOST_WIDE_INT));
#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
#define TARGET_ASM_CAN_OUTPUT_MI_THUNK default_can_output_mi_thunk_no_vcall
+#undef TARGET_SCHED_ISSUE_RATE
+#define TARGET_SCHED_ISSUE_RATE frv_issue_rate
#undef TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE
#define TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE frv_use_dfa_pipeline_interface
return ggc_alloc_cleared (sizeof (struct machine_function));
}
\f
+/* Implement TARGET_SCHED_ISSUE_RATE. */
+
+static int
+frv_issue_rate (void)
+{
+ if (!TARGET_PACK)
+ return 1;
+
+ switch (frv_cpu_type)
+ {
+ default:
+ case FRV_CPU_FR300:
+ case FRV_CPU_SIMPLE:
+ return 1;
+
+ case FRV_CPU_FR400:
+ return 2;
+
+ case FRV_CPU_GENERIC:
+ case FRV_CPU_FR500:
+ case FRV_CPU_TOMCAT:
+ return 4;
+ }
+}
+
+
/* Implement TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE. */
static int
unsigned char reg_state[FIRST_PSEUDO_REGISTER];
/* If we weren't going to pack the insns, don't bother with this pass. */
- if (!optimize || !flag_schedule_insns_after_reload || TARGET_NO_VLIW_BRANCH)
+ if (!optimize
+ || !flag_schedule_insns_after_reload
+ || TARGET_NO_VLIW_BRANCH
+ || frv_issue_rate () == 1)
return;
- switch (frv_cpu_type)
- {
- default:
- case FRV_CPU_FR300: /* FR300/simple are single issue */
- case FRV_CPU_SIMPLE:
- return;
-
- case FRV_CPU_GENERIC: /* FR-V and FR500 are multi-issue */
- case FRV_CPU_FR400:
- case FRV_CPU_FR500:
- case FRV_CPU_TOMCAT:
- break;
- }
-
/* Set up the instruction and register states. */
dfa_start ();
frv_state = (state_t) xmalloc (state_size ());