PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE));
static int fr400_check_insn_major_constraints
PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE));
+static int fr450_check_insn_major_constraints
+ PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE));
static int fr500_check_insn_major_constraints
PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE));
static int fr550_check_insn_major_constraints
if (major >= FR400_MAJOR_B_1 && major <= FR400_MAJOR_B_6)
return 1; /* is a branch */
break;
+ case bfd_mach_fr450:
+ if (major >= FR450_MAJOR_B_1 && major <= FR450_MAJOR_B_6)
+ return 1; /* is a branch */
+ break;
default:
if (major >= FR500_MAJOR_B_1 && major <= FR500_MAJOR_B_6)
return 1; /* is a branch */
switch (mach)
{
case bfd_mach_fr400:
+ case bfd_mach_fr450:
return 0; /* No float insns */
default:
if (major >= FR500_MAJOR_F_1 && major <= FR500_MAJOR_F_8)
if (major >= FR400_MAJOR_M_1 && major <= FR400_MAJOR_M_2)
return 1; /* is a media insn */
break;
+ case bfd_mach_fr450:
+ if (major >= FR450_MAJOR_M_1 && major <= FR450_MAJOR_M_6)
+ return 1; /* is a media insn */
+ break;
default:
if (major >= FR500_MAJOR_M_1 && major <= FR500_MAJOR_M_8)
return 1; /* is a media insn */
if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR),
bfd_mach_fr400))
return 1;
+ if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR),
+ bfd_mach_fr450))
+ return 1;
if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR),
bfd_mach_fr500))
return 1;
if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR),
bfd_mach_fr400))
return 1;
+ if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR),
+ bfd_mach_fr450))
+ return 1;
if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR),
bfd_mach_fr500))
return 1;
if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR),
bfd_mach_fr400))
return 1;
+ if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR),
+ bfd_mach_fr450))
+ return 1;
if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR),
bfd_mach_fr500))
return 1;
/* SCAN */ UNIT_I0, /* scan only in I0 unit. */
/* DCPL */ UNIT_C, /* dcpl only in C unit. */
/* MDUALACC */ UNIT_FM0, /* media dual acc insn only in FM0 unit. */
+/* MDCUTSSI */ UNIT_FM0, /* mdcutssi only in FM0 unit. */
+/* MCLRACC-1*/ UNIT_FM0 /* mclracc,A==1 insn only in FM0 unit. */
+};
+
+/* Some insns are assigned specialized implementation units which map to
+ different actual implementation units on different machines. These
+ tables perform that mapping. */
+static CGEN_ATTR_VALUE_TYPE fr450_unit_mapping[] =
+{
+/* unit in insn actual unit */
+/* NIL */ UNIT_NIL,
+/* I0 */ UNIT_I0,
+/* I1 */ UNIT_I1,
+/* I01 */ UNIT_I01,
+/* I2 */ UNIT_NIL, /* no I2 or I3 unit */
+/* I3 */ UNIT_NIL,
+/* IALL */ UNIT_I01, /* only I0 and I1 units */
+/* FM0 */ UNIT_FM0,
+/* FM1 */ UNIT_FM1,
+/* FM01 */ UNIT_FM01,
+/* FM2 */ UNIT_NIL, /* no F2 or M2 units */
+/* FM3 */ UNIT_NIL, /* no F3 or M3 units */
+/* FMALL */ UNIT_FM01,/* Only F0,F1,M0,M1 units */
+/* FMLOW */ UNIT_FM0, /* Only F0,M0 units */
+/* B0 */ UNIT_B0, /* branches only in B0 unit. */
+/* B1 */ UNIT_B0,
+/* B01 */ UNIT_B0,
+/* C */ UNIT_C,
+/* MULT-DIV */ UNIT_I0, /* multiply and divide only in I0 unit. */
+/* IACC */ UNIT_I01, /* iacc multiply in I0 or I1 unit. */
+/* LOAD */ UNIT_I0, /* load only in I0 unit. */
+/* STORE */ UNIT_I0, /* store only in I0 unit. */
+/* SCAN */ UNIT_I0, /* scan only in I0 unit. */
+/* DCPL */ UNIT_I0, /* dcpl only in I0 unit. */
+/* MDUALACC */ UNIT_FM0, /* media dual acc insn only in FM0 unit. */
+/* MDCUTSSI */ UNIT_FM01, /* mdcutssi in FM0 or FM1. */
/* MCLRACC-1*/ UNIT_FM0 /* mclracc,A==1 insn only in FM0 unit. */
};
/* SCAN */ UNIT_I01, /* scan in I0 or I1 unit. */
/* DCPL */ UNIT_C, /* dcpl only in C unit. */
/* MDUALACC */ UNIT_FM0, /* media dual acc insn only in FM0 unit. */
+/* MDCUTSSI */ UNIT_FM0, /* mdcutssi only in FM0 unit. */
/* MCLRACC-1*/ UNIT_FM01 /* mclracc,A==1 in FM0 or FM1 unit. */
};
/* SCAN */ UNIT_IALL, /* scan in any integer unit. */
/* DCPL */ UNIT_I0, /* dcpl only in I0 unit. */
/* MDUALACC */ UNIT_FMALL,/* media dual acc insn in all media units */
+/* MDCUTSSI */ UNIT_FM01, /* mdcutssi in FM0 or FM1 unit. */
/* MCLRACC-1*/ UNIT_FM01 /* mclracc,A==1 in FM0 or FM1 unit. */
};
vliw->current_vliw = fr400_allowed_vliw;
vliw->unit_mapping = fr400_unit_mapping;
break;
+ case bfd_mach_fr450:
+ vliw->current_vliw = fr400_allowed_vliw;
+ vliw->unit_mapping = fr450_unit_mapping;
+ break;
case bfd_mach_fr550:
vliw->current_vliw = fr550_allowed_vliw;
vliw->unit_mapping = fr550_unit_mapping;
return 1;
}
+static int
+fr450_check_insn_major_constraints (
+ FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE major
+)
+{
+ CGEN_ATTR_VALUE_TYPE other_major;
+
+ /* Our caller guarantees there's at least one other instruction. */
+ other_major = CGEN_INSN_ATTR_VALUE (vliw->insn[0], CGEN_INSN_FR450_MAJOR);
+
+ /* (M4, M5) and (M4, M6) are allowed. */
+ if (other_major == FR450_MAJOR_M_4)
+ if (major == FR450_MAJOR_M_5 || major == FR450_MAJOR_M_6)
+ return 1;
+
+ /* Otherwise, instructions in even-numbered media categories cannot be
+ executed in parallel with other media instructions. */
+ switch (major)
+ {
+ case FR450_MAJOR_M_2:
+ case FR450_MAJOR_M_4:
+ case FR450_MAJOR_M_6:
+ return !(other_major >= FR450_MAJOR_M_1
+ && other_major <= FR450_MAJOR_M_6);
+
+ case FR450_MAJOR_M_1:
+ case FR450_MAJOR_M_3:
+ case FR450_MAJOR_M_5:
+ return !(other_major == FR450_MAJOR_M_2
+ || other_major == FR450_MAJOR_M_4
+ || other_major == FR450_MAJOR_M_6);
+
+ default:
+ return 1;
+ }
+}
+
static int
find_unit_in_vliw (
FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE unit
case bfd_mach_fr400:
rc = fr400_check_insn_major_constraints (vliw, major);
break;
+ case bfd_mach_fr450:
+ rc = fr450_check_insn_major_constraints (vliw, major);
+ break;
case bfd_mach_fr550:
rc = fr550_check_insn_major_constraints (vliw, major, insn);
break;
case bfd_mach_fr400:
major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR);
break;
+ case bfd_mach_fr450:
+ major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR);
+ break;
case bfd_mach_fr550:
major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR550_MAJOR);
break;
projects / deliverable / binutils-gdb.git / blobdiff